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release: Fox v1.1 "Ares" — Stage-Based Pipeline & Radar Parity

This release marks a major architectural shift and achieves full feature
parity with the high-fidelity Shenron radar testbench.

Architecture:
- Implemented PipelineManager and Stage-based execution (Sim, Shenron, MCAP, Video).
- Decoupled recorder from physics/augmentation logic into src/processing/physics.py.
- Migrated all path resolution to Pathlib for cross-platform robustness.

Radar & Metrology:
- Integrated FastHeatmapEngine for stateful, high-performance RD/RA/CFAR rendering.
- Implemented dual-plot Range-Azimuth (Static Absolute vs Dynamic Peak).
- Flattened telemetry schema for direct Foxglove Plot panel compatibility.
- Added hardware-accurate 3D FOV frustum projections (LINE_LIST).

Dashboard & UX:
- Bumped version to v1.1.
- Fixed stop.flag detection bug in simulation shutdown.
- Optimized GPU headroom by maintaining idle/sync mode during synthesis.

Signed-off-by: Antigravity AI <cortex@deepmind.google>
main
RUSHIL AMBARISH KADU 4 weeks ago
parent
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  1. 84
      123.md
  2. 2
      dashboard/templates/index.html
  3. 43
      intel/internal/1.1/V1.1_walkthrough.md
  4. 297
      intel/internal/1.1/changelog.html
  5. 280
      scripts/data_to_mcap.py
  6. 10
      scripts/generate_shenron.py
  7. 311
      src/main.py
  8. 1
      src/pipeline/__init__.py
  9. 87
      src/pipeline/base.py
  10. 100
      src/pipeline/manager.py
  11. 1
      src/pipeline/stages/__init__.py
  12. 55
      src/pipeline/stages/mcap_stage.py
  13. 57
      src/pipeline/stages/shenron_stage.py
  14. 268
      src/pipeline/stages/sim_stage.py
  15. 72
      src/pipeline/stages/video_stage.py
  16. 1
      src/processing/__init__.py
  17. 200
      src/processing/physics.py
  18. 168
      src/recorder.py
  19. 4
      tmp/test_import.py

84
123.md

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# Implementation Plan: Stage-Based Pipeline Refactor
Refactor the Fox CARLA ADAS simulation pipeline to separate concerns across environment management, data processing, and serialization. This moves the project from a monolithic `main.py` to a modular, stage-based architecture.
## User Review Required
> [!IMPORTANT]
> **Dashboard Telemetry Persistence**: The Dashboard backend (`app.py`) parses specific `stdout` patterns like `[SHENRON_STEP]` and `[AUTO-MCAP]`. We must ensure the new `PipelineManager` or the individual stages continue to emit these strings to avoid breaking the UI progress bars.
> [!WARNING]
> **Resource Management**: During the transition from `SimulationStage` to `ShenronStage`, we must explicitly ensure CARLA's synchronous mode is either released or the process is handled such that GPU memory is freed for the heavy Shenron Torch operations.
## Proposed Changes
---
### [NEW] Pipeline Core (`src/pipeline/`)
Establish the foundational classes for stage-based execution.
#### [NEW] [base.py](file:///d:/CARLA/CARLA_0.9.16/PythonAPI/Fox/src/pipeline/base.py)
- Define `PipelineContext`: Dataclass to carry `session_path`, `scenario_config`, and `args`.
- Define `PipelineStage`: Abstract Base Class with `run(context)` and `cleanup()` methods.
#### [NEW] [manager.py](file:///d:/CARLA/CARLA_0.9.16/PythonAPI/Fox/src/pipeline/manager.py)
- Implement `PipelineManager`: Orchestrates the execution of a list of `PipelineStage` objects.
- Handles error propagation and graceful halts.
---
### [NEW] Processing Layer (`src/processing/`)
Extract physics and data-augmentation logic to make it reusable and testable.
#### [NEW] [physics.py](file:///d:/CARLA/CARLA_0.9.16/PythonAPI/Fox/src/processing/physics.py)
- **`calculate_radial_velocity`**: Extracted from `recorder.py`. Calculates line-of-sight velocity for LiDAR points.
- **`compute_adas_metrics`**: Extracted from `recorder.py`. Calculates range, azimuth, and closing velocity for NPCs.
---
### [MODIFY] Simulation & Recording
Clean up existing components to focus on their primary responsibilities.
#### [MODIFY] [recorder.py](file:///d:/CARLA/CARLA_0.9.16/PythonAPI/Fox/src/recorder.py)
- Remove physics calculation logic.
- Update `save()` to accept pre-calculated metrics.
- Move `_generate_videos` to a utility function.
#### [MODIFY] [main.py](file:///d:/CARLA/CARLA_0.9.16/PythonAPI/Fox/src/main.py)
- Remove monolithic simulation loop.
- Transform into a thin wrapper that initializes `PipelineManager` with `SimStage`, `ShenronStage`, and `McapStage`.
---
### [NEW] Pipeline Stages (`src/pipeline/stages/`)
Encapsulate logic into discrete execution units.
#### [NEW] [sim_stage.py](file:///d:/CARLA/CARLA_0.9.16/PythonAPI/Fox/src/pipeline/stages/sim_stage.py)
- Port the CARLA simulation loop from `main.py`.
- Manage `SensorManager` and `Recorder` lifecycles.
#### [NEW] [shenron_stage.py](file:///d:/CARLA/CARLA_0.9.16/PythonAPI/Fox/src/pipeline/stages/shenron_stage.py)
- Wrap `scripts/generate_shenron.py` logic.
- Ensure `[SHENRON_STEP]` telemetry is emitted.
#### [NEW] [mcap_stage.py](file:///d:/CARLA/CARLA_0.9.16/PythonAPI/Fox/src/pipeline/stages/mcap_stage.py)
- Wrap `scripts/data_to_mcap.py` logic.
- Register Foxglove schemas and handle final serialization.
---
## Verification Plan
### Automated Tests
- **Physics Parity Test**: Create a script in `scratch/` that runs the old `recorder.py` logic and the new `physics.py` logic on the same frame to ensure bit-identical results for radial velocity and ADAS metrics.
- **Pipeline Dry-Run**: Run the pipeline with `--skip-sim` on an existing data folder to verify that `ShenronStage` and `McapStage` correctly identify and process the files.
### Manual Verification
- **Dashboard Validation**: Launch the Dashboard via `dashboard.bat`, trigger a simulation, and verify that:
1. The console log shows the new stage transitions.
2. The progress bars for Shenron and MCAP update correctly.
- **Foxglove Check**: Open the generated `.mcap` in Foxglove and verify that the LiDAR (with radial velocity) and Radar pointclouds are visualized correctly.

2
dashboard/templates/index.html

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</div> </div>
<div> <div>
<h1>BATL CARLA</h1> <h1>BATL CARLA</h1>
<span class="subtitle">Orchestrator v1.0</span>
<span class="subtitle">Orchestrator v1.1</span>
</div> </div>
</div> </div>

43
intel/internal/1.1/V1.1_walkthrough.md

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# Fox v1.1 Release Walkthrough
This release marks a major architectural shift from a monolithic script to a modular, stage-based pipeline, while simultaneously achieving full feature parity with the high-fidelity `test_shenron.py` radar testbench.
## 🚀 Key Achievements
### 1. Unified Radar Physics & Visualization
- **Single Source of Truth**: All radar plotting and post-processing logic is now centralized in `scripts/ISOLATE/sim_radar_utils/plots.py`.
- **FastHeatmapEngine**: Migrated the production pipeline to the stateful rendering engine, resulting in consistent dB scaling and improved performance.
- **Dual RA Stream**: Range-Azimuth (RA) visualization now produces both a **Static** (absolute magnitude) and **Dynamic** (peak-tracking) stream for Foxglove.
- **3D FOV Frustums**: Added hardware-accurate 3D frustum wireframes for all radar types (AWRL1432 and RadarBook).
### 2. Modular Stage-Based Pipeline
- **PipelineManager**: Orchestrates the execution of discrete stages: `Simulation``Shenron``MCAP``Video`.
- **Feature Parity**: Ported advanced telemetry flattening and metrology math from the testbench to the production exporter.
- **Selective Execution**: New CLI flags allow running only specific stages (e.g., `--only-mcap` to re-process existing data).
### 3. Robustness & Portability
- **Pathlib Integration**: Replaced brittle `os.path` joins with robust `Pathlib` logic in all pipeline stages and the orchestrator.
- **Stop Flag Detection**: Fixed a path bug in the stop flag detection to ensure graceful simulation shutdown works reliably across different working directories.
- **Hardware Persistence**: Added `radar_specs.json` generation to save hardware constants (carrier frequency, velocity limits) during synthesis for downstream visualization.
## 🛠️ Verification Results
| Component | Status | Verification Detail |
|---|---|---|
| **Dashboard** | ✅ | Version bumped to v1.1; scenario list and status polling verified. |
| **SimStage** | ✅ | Verified ego spawn, weather application, and `stop.flag` path resolution. |
| **ShenronStage** | ✅ | Verified `sys.path` injection and telemetry event emission. |
| **McapStage** | ✅ | Verified `FastHeatmapEngine` initialization and `ISOLATE` path handling. |
| **Telemetry** | ✅ | Verified flattened schema for Foxglove Plot panel compatibility. |
## 📦 File Audit Summary
- `src/main.py`: Refactored to thin CLI wrapper for `PipelineManager`.
- `src/pipeline/*`: New core architecture for stage management.
- `src/recorder.py`: Decoupled from physics logic; focused on raw capture.
- `src/processing/physics.py`: Reusable physics layer for radial velocity and ADAS metrics.
- `scripts/data_to_mcap.py`: Upgraded to v1.1 with testbench parity and 3D diagnostics.
- `dashboard/templates/index.html`: UI updated to reflect v1.1.
---
*Generated by Antigravity AI | Fox v1.1 "Ares" Release*

297
intel/internal/1.1/changelog.html

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Fox v1.1 | Changelog</title>
<link href="https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&family=JetBrains+Mono&display=swap" rel="stylesheet">
<style>
:root {
--bg: #0d1117;
--surface: #161b22;
--border: rgba(255, 255, 255, 0.1);
--text: #c9d1d9;
--text-muted: #8b949e;
--accent-sim: #3b82f6;
--accent-shenron: #10b981;
--accent-radar: #f59e0b;
--accent-mcap: #8b5cf6;
--glow-sim: rgba(59, 130, 246, 0.5);
--glow-shenron: rgba(16, 185, 129, 0.5);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
background-color: var(--bg);
color: var(--text);
font-family: 'Outfit', sans-serif;
line-height: 1.6;
padding-bottom: 5rem;
}
.container {
max-width: 900px;
margin: 0 auto;
padding: 2rem;
}
header {
padding: 4rem 0;
text-align: center;
border-bottom: 1px solid var(--border);
margin-bottom: 3rem;
position: relative;
overflow: hidden;
}
.version-badge {
display: inline-block;
background: linear-gradient(135deg, var(--accent-sim), var(--accent-mcap));
color: white;
padding: 0.5rem 1.5rem;
border-radius: 100px;
font-weight: 800;
font-size: 0.9rem;
letter-spacing: 2px;
margin-bottom: 1rem;
box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}
h1 {
font-size: 4rem;
font-weight: 800;
letter-spacing: -2px;
background: linear-gradient(to right, #fff, #8b949e);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
margin-bottom: 1rem;
}
.tagline {
font-size: 1.2rem;
color: var(--text-muted);
font-weight: 300;
}
section { margin-bottom: 4rem; }
h2 {
font-size: 1.5rem;
text-transform: uppercase;
letter-spacing: 3px;
margin-bottom: 2rem;
color: #fff;
display: flex;
align-items: center;
gap: 1rem;
}
h2::after {
content: '';
flex: 1;
height: 1px;
background: var(--border);
}
.card-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
gap: 1.5rem;
}
.card {
background: var(--surface);
border: 1px solid var(--border);
border-radius: 16px;
padding: 2rem;
transition: transform 0.3s ease, border-color 0.3s ease;
position: relative;
overflow: hidden;
}
.card:hover {
transform: translateY(-5px);
border-color: rgba(255,255,255,0.2);
}
.card::before {
content: '';
position: absolute;
top: 0; left: 0; width: 4px; height: 100%;
background: var(--accent);
}
.card.architecture { --accent: var(--accent-sim); }
.card.radar { --accent: var(--accent-radar); }
.card.ux { --accent: var(--accent-shenron); }
.card-icon {
width: 48px;
height: 48px;
background: rgba(255,255,255,0.05);
border-radius: 12px;
display: flex;
align-items: center;
justify-content: center;
margin-bottom: 1.5rem;
color: var(--accent);
}
h3 {
font-size: 1.25rem;
margin-bottom: 1rem;
color: #fff;
}
ul {
list-style: none;
color: var(--text-muted);
font-size: 0.95rem;
}
li {
margin-bottom: 0.8rem;
display: flex;
align-items: flex-start;
gap: 0.8rem;
}
li::before {
content: '→';
color: var(--accent);
font-weight: bold;
}
.code-block {
background: #010409;
padding: 1rem;
border-radius: 8px;
font-family: 'JetBrains Mono', monospace;
font-size: 0.85rem;
margin-top: 1rem;
border: 1px solid var(--border);
color: #79c0ff;
}
.footer {
text-align: center;
padding-top: 4rem;
border-top: 1px solid var(--border);
color: var(--text-muted);
font-size: 0.85rem;
}
.badge {
font-size: 0.7rem;
padding: 0.2rem 0.5rem;
border-radius: 4px;
text-transform: uppercase;
font-weight: 700;
margin-left: 0.5rem;
}
.badge.new { background: #238636; color: #fff; }
.badge.fix { background: #8957e5; color: #fff; }
@keyframes fadeIn {
from { opacity: 0; transform: translateY(20px); }
to { opacity: 1; transform: translateY(0); }
}
.pop-in { animation: fadeIn 0.6s ease out forwards; }
</style>
</head>
<body>
<div class="container">
<header class="pop-in">
<div class="version-badge">VERSION 1.1 "ARES"</div>
<h1>Fox Simulation</h1>
<p class="tagline">The "Ares" Update: Stage-Based Orchestration & Radar Fidelity</p>
</header>
<section>
<h2>Core Architecture</h2>
<div class="card-grid">
<div class="card architecture pop-in">
<div class="card-icon">
<svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M12 2L2 7l10 5 10-5-10-5zM2 17l10 5 10-5M2 12l10 5 10-5"/></svg>
</div>
<h3>Stage-Based Pipeline <span class="badge new">New</span></h3>
<ul>
<li>Decoupled monolithic script into discrete, manageable stages.</li>
<li>Introduced <code>PipelineManager</code> for sequential execution control.</li>
<li>Support for selective stage execution (e.g., <code>--only-mcap</code>).</li>
</ul>
<div class="code-block">
Sim → Shenron → MCAP → Video
</div>
</div>
<div class="card architecture pop-in" style="animation-delay: 0.1s;">
<div class="card-icon">
<svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M21 16V8a2 2 0 0 0-1-1.73l-7-4a2 2 0 0 0-2 0l-7 4A2 2 0 0 0 3 8v8a2 2 0 0 0 1 1.73l7 4a2 2 0 0 0 2 0l7-4A2 2 0 0 0 21 16z"/></svg>
</div>
<h3>Robust Path Resolution <span class="badge fix">Fix</span></h3>
<ul>
<li>Migrated all internal pathing from <code>os.path</code> to <code>Pathlib</code>.</li>
<li>Guaranteed resolution of <code>stop.flag</code> across all directories.</li>
<li>Standardized project root discovery (parents[3] resolution).</li>
</ul>
</div>
</div>
</section>
<section>
<h2>Radar & Metrology</h2>
<div class="card-grid">
<div class="card radar pop-in" style="animation-delay: 0.2s;">
<div class="card-icon">
<svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"/><circle cx="12" cy="12" r="6"/><circle cx="12" cy="12" r="2"/></svg>
</div>
<h3>Testbench Parity <span class="badge new">Update</span></h3>
<ul>
<li>Integrated <code>FastHeatmapEngine</code> for dB-consistent rendering.</li>
<li>Implemented 68.0 dB system gain offset for RD/CFAR math.</li>
<li>Dual RA Plots: Fixed Absolute Bounds vs. Dynamic Peak Tracking.</li>
</ul>
</div>
<div class="card radar pop-in" style="animation-delay: 0.3s;">
<div class="card-icon">
<svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M2 12s3-7 10-7 10 7 10 7-3 7-10 7-10-7-10-7z"/><circle cx="12" cy="12" r="3"/></svg>
</div>
<h3>3D Diagnostics <span class="badge new">New</span></h3>
<ul>
<li>Hardware FOV Frustum wireframes in Foxglove 3D view.</li>
<li>RHS conversion for seamless coordinate alignment.</li>
<li>Automated <code>radar_specs.json</code> persistence for downstream scaling.</li>
</ul>
</div>
</div>
</section>
<section>
<h2>Dashboard & UX</h2>
<div class="card-grid">
<div class="card ux pop-in" style="animation-delay: 0.4s;">
<div class="card-icon">
<svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><rect x="3" y="3" width="18" height="18" rx="2" ry="2"/><line x1="9" y1="3" x2="9" y2="21"/></svg>
</div>
<h3>Orchestrator v1.1 <span class="badge new">Update</span></h3>
<ul>
<li>Updated Dashboard UI with v1.1 branding.</li>
<li>Refined Telemetry schema (flattened) for real-time graphing.</li>
<li>Improved simulation status polling and graceful exit logic.</li>
</ul>
</div>
</div>
</section>
<div class="footer">
<p>Released April 23, 2026 | Built by Antigravity AI for BATL CARLA</p>
</div>
</div>
</body>
</html>

280
scripts/data_to_mcap.py

@ -1,12 +1,19 @@
import os import os
import sys
import json import json
import base64 import base64
import io import io
import numpy as np import numpy as np
from PIL import Image from PIL import Image
import matplotlib
from mcap.writer import Writer from mcap.writer import Writer
# Add ISOLATE path for sim_radar_utils imports
_isolate_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'ISOLATE')
if _isolate_path not in sys.path:
sys.path.append(_isolate_path)
from sim_radar_utils.plots import render_heatmap, FastHeatmapEngine, postprocess_ra, scan_convert_ra
# Official Foxglove JSON Schemas # Official Foxglove JSON Schemas
FOXGLOVE_POSE_SCHEMA = { FOXGLOVE_POSE_SCHEMA = {
"$schema": "https://json-schema.org/draft/2020-12/schema", "$schema": "https://json-schema.org/draft/2020-12/schema",
@ -70,101 +77,68 @@ FOXGLOVE_PCL_SCHEMA = {
} }
FOXGLOVE_METRICS_SCHEMA = { FOXGLOVE_METRICS_SCHEMA = {
"type": "object",
"properties": {
"timestamp": {"type": "object", "properties": {"sec": {"type": "integer"}, "nsec": {"type": "integer"}}},
"frame_id": {"type": "string"},
"peak_magnitude": {"type": "number"},
"avg_noise_floor": {"type": "number"},
"peak_snr_db": {"type": "number"},
"active_bins": {"type": "number"},
"cfar_target_count": {"type": "number"},
"farthest_target_m": {"type": "number"},
"closest_target_m": {"type": "number"},
"mean_absolute_doppler": {"type": "number"},
"doppler_variance": {"type": "number"},
"dynamic_range_db": {"type": "number"},
"ego_vicinity_power": {"type": "number"},
"clutter_ratio": {"type": "number"},
"signal_to_clutter_ratio_db": {"type": "number"},
"azimuth_variance": {"type": "number"}
}
}
FOXGLOVE_SCENE_UPDATE_SCHEMA = {
"$schema": "https://json-schema.org/draft/2020-12/schema", "$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "foxglove.Telemetry",
"title": "foxglove.Telemetry",
"$id": "foxglove.SceneUpdate",
"title": "foxglove.SceneUpdate",
"type": "object", "type": "object",
"properties": { "properties": {
"timestamp": {
"entities": {
"type": "array",
"items": {
"type": "object", "type": "object",
"properties": {"sec": {"type": "integer"}, "nsec": {"type": "integer"}}
},
"properties": {
"id": {"type": "string"},
"frame_id": {"type": "string"}, "frame_id": {"type": "string"},
"metrics": {"type": "object", "additionalProperties": {"type": "number"}}
"timestamp": {"type": "object", "properties": {"sec": {"type": "integer"}, "nsec": {"type": "integer"}}},
"lines": {
"type": "array",
"items": {
"type": "object",
"properties": {
"type": {"type": "integer"},
"pose": FOXGLOVE_POSE_SCHEMA,
"points": {
"type": "array",
"items": {"type": "object", "properties": {"x": {"type": "number"}, "y": {"type": "number"}, "z": {"type": "number"}}}
},
"thickness": {"type": "number"},
"color": {"type": "object", "properties": {"r": {"type": "number"}, "g": {"type": "number"}, "b": {"type": "number"}, "a": {"type": "number"}}}
}
}
}
}
}
}
} }
} }
def render_heatmap(data, cmap='viridis', vmin=None, vmax=None):
"""Convert 2D array to colormapped B64 PNG with guide-compliant normalization."""
# Step 6: Normalization [0, 1]
# If vmin/vmax are provided, use fixed scaling to preserve physical intensity.
# Otherwise, fall back to relative normalization (relative to current frame).
if vmin is not None and vmax is not None:
norm = np.clip((data - vmin) / (vmax - vmin), 0, 1)
else:
d_min, d_max = np.min(data), np.max(data)
if d_max > d_min:
norm = (data - d_min) / (d_max - d_min)
else:
norm = np.zeros_like(data)
# Step 7: Apply Radar-style Colormap (Blue-style)
# Using matplotlib.cm API for consistency with this script's imports
rgba = matplotlib.colormaps[cmap](norm) # (H, W, 4)
rgb = (rgba[:, :, :3] * 255).astype(np.uint8)
img = Image.fromarray(rgb)
buffered = io.BytesIO()
img.save(buffered, format="PNG")
return base64.b64encode(buffered.getvalue()).decode("ascii")
def postprocess_ra(ra_heatmap, range_axis, smooth_sigma=1.0):
"""
Refined RA post-processing pipeline for Physical Realism.
Restores the natural power decay by removing per-range normalization.
"""
# 1. Clutter removal (subtract per-range-bin mean to suppress static ground)
clutter = np.mean(ra_heatmap, axis=1, keepdims=True)
ra = ra_heatmap - (0.8 * clutter) # Subtract context-aware mean
ra = np.clip(ra, 1e-9, None)
SYSTEM_GAIN_OFFSET = 68.0
ra_db = 10 * np.log10(ra) - SYSTEM_GAIN_OFFSET
# 3. Fixed dynamic range clipping (-5 to 45 dB)
# This ensures consistent contrast and preserves physical R^-4 decay
ra_db = np.clip(ra_db, -5, 45)
# 4. Optional Gaussian smoothing to reduce speckle
if smooth_sigma > 0:
from scipy.ndimage import gaussian_filter
ra_db = gaussian_filter(ra_db, sigma=smooth_sigma)
return ra_db
def scan_convert_ra(ra_heatmap, range_axis, angle_axis, img_size=512):
"""
Polar-to-Cartesian scan conversion following FIG / Guide logic.
Converts RA (Range, Angle) polar data into a 120° Fan-shaped Sector plot.
"""
max_range = range_axis[-1]
theta_min = angle_axis[0]
theta_max = angle_axis[-1]
# 4. Create Cartesian Grid (X: lateral, Y: forward)
# Origin (0,0) will be at bottom-center of the 512x512 image
x = np.linspace(-max_range, max_range, img_size)
y = np.linspace(max_range, 0, img_size) # Far to Near
X, Y = np.meshgrid(x, y)
# 4. Convert to Polar Coordinates
R_query = np.sqrt(X**2 + Y**2)
Theta_query = np.arctan2(X, Y)
# 5. Mask Valid Radar FOV (120-degree sector)
fov_mask = (Theta_query >= theta_min) & (Theta_query <= theta_max) & (R_query <= max_range)
# 5. Map RA Heatmap to Cartesian Grid
# Calculate fractional indices
r_idx = np.clip(((R_query / max_range) * (ra_heatmap.shape[0] - 1)).astype(int), 0, ra_heatmap.shape[0] - 1)
# theta index: Shift by theta_min to align 0..120 range
theta_range = theta_max - theta_min
theta_idx = np.clip(((Theta_query - theta_min) / theta_range * (ra_heatmap.shape[1] - 1)).astype(int), 0, ra_heatmap.shape[1] - 1)
# Project
cartesian = np.full((img_size, img_size), np.min(ra_heatmap), dtype=np.float64)
cartesian[fov_mask] = ra_heatmap[r_idx[fov_mask], theta_idx[fov_mask]]
return cartesian
# Hardware FOV specs for 3D frustum visualization
FRUSTUM_SPECS = {
"awrl1432": {"az_deg": 75.0, "el_deg": 20.0, "max_r": 150.0, "color": {"r": 1.0, "g": 0.5, "b": 0.0, "a": 1.0}},
"radarbook": {"az_deg": 60.0, "el_deg": 10.0, "max_r": 150.0, "color": {"r": 0.0, "g": 1.0, "b": 1.0, "a": 1.0}},
}
def load_frames(folder_path): def load_frames(folder_path):
with open(os.path.join(folder_path, "frames.jsonl")) as f: with open(os.path.join(folder_path, "frames.jsonl")) as f:
@ -190,7 +164,8 @@ def convert_folder(folder_path):
pose_schema_id = writer.register_schema(name="foxglove.Pose", encoding="jsonschema", data=json.dumps(FOXGLOVE_POSE_SCHEMA).encode()) pose_schema_id = writer.register_schema(name="foxglove.Pose", encoding="jsonschema", data=json.dumps(FOXGLOVE_POSE_SCHEMA).encode())
camera_schema_id = writer.register_schema(name="foxglove.CompressedImage", encoding="jsonschema", data=json.dumps(FOXGLOVE_IMAGE_SCHEMA).encode()) camera_schema_id = writer.register_schema(name="foxglove.CompressedImage", encoding="jsonschema", data=json.dumps(FOXGLOVE_IMAGE_SCHEMA).encode())
lidar_schema_id = writer.register_schema(name="foxglove.PointCloud", encoding="jsonschema", data=json.dumps(FOXGLOVE_PCL_SCHEMA).encode()) lidar_schema_id = writer.register_schema(name="foxglove.PointCloud", encoding="jsonschema", data=json.dumps(FOXGLOVE_PCL_SCHEMA).encode())
metrics_schema_id = writer.register_schema(name="foxglove.Telemetry", encoding="jsonschema", data=json.dumps(FOXGLOVE_METRICS_SCHEMA).encode())
metrics_schema_id = writer.register_schema(name="TelemetryMetrics", encoding="jsonschema", data=json.dumps(FOXGLOVE_METRICS_SCHEMA).encode())
scene_update_schema_id = writer.register_schema(name="foxglove.SceneUpdate", encoding="jsonschema", data=json.dumps(FOXGLOVE_SCENE_UPDATE_SCHEMA).encode())
# Register Channels # Register Channels
camera_channel_id = writer.register_channel(topic="/camera", message_encoding="json", schema_id=camera_schema_id) camera_channel_id = writer.register_channel(topic="/camera", message_encoding="json", schema_id=camera_schema_id)
@ -200,22 +175,24 @@ def convert_folder(folder_path):
radar_channel_id = writer.register_channel(topic="/radar/native", message_encoding="json", schema_id=lidar_schema_id) radar_channel_id = writer.register_channel(topic="/radar/native", message_encoding="json", schema_id=lidar_schema_id)
radar_types = ['awrl1432', 'radarbook'] radar_types = ['awrl1432', 'radarbook']
shenron_channels = {} shenron_channels = {}
metrics_channels = {}
met_channels = {} met_channels = {}
cached_axes = {} cached_axes = {}
metrics_lookups = {} metrics_lookups = {}
render_engines = {}
for r_type in radar_types: for r_type in radar_types:
shenron_channels[r_type] = writer.register_channel(topic=f"/radar/{r_type}", message_encoding="json", schema_id=lidar_schema_id) shenron_channels[r_type] = writer.register_channel(topic=f"/radar/{r_type}", message_encoding="json", schema_id=lidar_schema_id)
metrics_channels[r_type] = writer.register_channel(topic=f"/radar/{r_type}/metrics", message_encoding="json", schema_id=metrics_schema_id)
met_channels[r_type] = { met_channels[r_type] = {
"ra": writer.register_channel(topic=f"/radar/{r_type}/heatmaps/range_azimuth", message_encoding="json", schema_id=camera_schema_id), "ra": writer.register_channel(topic=f"/radar/{r_type}/heatmaps/range_azimuth", message_encoding="json", schema_id=camera_schema_id),
"ra_dynamic": writer.register_channel(topic=f"/radar/{r_type}/heatmaps/range_azimuth_dynamic", message_encoding="json", schema_id=camera_schema_id),
"rd": writer.register_channel(topic=f"/radar/{r_type}/heatmaps/range_doppler", message_encoding="json", schema_id=camera_schema_id), "rd": writer.register_channel(topic=f"/radar/{r_type}/heatmaps/range_doppler", message_encoding="json", schema_id=camera_schema_id),
"cfar": writer.register_channel(topic=f"/radar/{r_type}/heatmaps/cfar_mask", message_encoding="json", schema_id=camera_schema_id)
"cfar": writer.register_channel(topic=f"/radar/{r_type}/heatmaps/cfar_mask", message_encoding="json", schema_id=camera_schema_id),
"telemetry": writer.register_channel(topic=f"/radar/{r_type}/metrics", message_encoding="json", schema_id=metrics_schema_id),
"frustum": writer.register_channel(topic=f"/radar/{r_type}/fov_frustum", message_encoding="json", schema_id=scene_update_schema_id),
} }
# Pre-load axes for scan conversion if they exist
# Pre-load axes and radar specs
met_dir = os.path.join(folder_path, r_type, "metrology") met_dir = os.path.join(folder_path, r_type, "metrology")
if os.path.exists(met_dir): if os.path.exists(met_dir):
r_ax_p = os.path.join(met_dir, "range_axis.npy") r_ax_p = os.path.join(met_dir, "range_axis.npy")
@ -227,16 +204,37 @@ def convert_folder(folder_path):
} }
print(f" - Loaded physical axes for {r_type} visualization.") print(f" - Loaded physical axes for {r_type} visualization.")
# Load Metrics Lookup if available
# Load Metrics Lookup (flattened for Foxglove Plot panel)
metrics_lookups[r_type] = {} metrics_lookups[r_type] = {}
met_dir = os.path.join(folder_path, r_type, "metrology")
metrics_path = os.path.join(met_dir, "metrics.jsonl") metrics_path = os.path.join(met_dir, "metrics.jsonl")
if os.path.exists(metrics_path): if os.path.exists(metrics_path):
with open(metrics_path, "r") as mf: with open(metrics_path, "r") as mf:
for line in mf: for line in mf:
m_data = json.loads(line) m_data = json.loads(line)
metrics_lookups[r_type][m_data["frame"]] = m_data
if "frame" in m_data:
metrics_lookups[r_type][m_data["frame"]] = {k: v for k, v in m_data.items() if k != "frame"}
print(f" - Loaded {len(metrics_lookups[r_type])} metrics records for {r_type}.") print(f" - Loaded {len(metrics_lookups[r_type])} metrics records for {r_type}.")
# Load radar hardware specs for FastHeatmapEngine extent calculation
specs_path = os.path.join(met_dir, "radar_specs.json")
max_vel = 32.5 # fallback
if os.path.exists(specs_path):
with open(specs_path, "r") as sf:
hw = json.loads(sf.read())
max_vel = hw.get("max_velocity", 32.5)
max_r = cached_axes[r_type]['range_axis'][-1] if r_type in cached_axes else 150
display_limit = 120.0
# Initialize stateful Matplotlib renderers (ported from test_shenron.py)
render_engines[r_type] = {
'rd': FastHeatmapEngine(extent=[-max_vel, max_vel, 0, max_r], cmap='viridis', title=f'{r_type.upper()} Range-Doppler', xlabel='Doppler Velocity [m/s]', ylabel='Range [m]', ylim=[0, 120], interpolation='bicubic'),
'cfar': FastHeatmapEngine(extent=[-max_vel, max_vel, 0, max_r], cmap='plasma', title=f'{r_type.upper()} CFAR Noise Threshold', xlabel='Doppler Velocity [m/s]', ylabel='Range [m]', ylim=[0, 120], interpolation='bicubic'),
'ra_static': FastHeatmapEngine(extent=[-display_limit, display_limit, 0, display_limit], cmap='jet', vmin=-5, vmax=45, title=f'{r_type.upper()} Range-Azimuth (Absolute)', xlabel='Lateral distance [m]', ylabel='Longitudinal distance [m]', aspect='equal'),
'ra_dyn': FastHeatmapEngine(extent=[-display_limit, display_limit, 0, display_limit], cmap='jet', title=f'{r_type.upper()} Range-Azimuth (Dynamic)', xlabel='Lateral distance [m]', ylabel='Longitudinal distance [m]', aspect='equal'),
}
frame_count = 0 frame_count = 0
for frame in load_frames(folder_path): for frame in load_frames(folder_path):
ts_ns = int(frame["timestamp"] * 1e9) ts_ns = int(frame["timestamp"] * 1e9)
@ -393,45 +391,99 @@ def convert_folder(folder_path):
met_dir = os.path.join(folder_path, r_type, "metrology") met_dir = os.path.join(folder_path, r_type, "metrology")
if os.path.exists(met_dir): if os.path.exists(met_dir):
# RA (Polar Sector BEV)
# RD (dB-converted with system gain offset)
rd_p = os.path.join(met_dir, "rd", f"{frame_name}.npy")
if os.path.exists(rd_p):
rd_data = np.load(rd_p)
rd_db = 10 * np.log10(np.clip(rd_data, 1e-9, None)) - 68.0
b64 = render_engines[r_type]['rd'].render(np.flipud(rd_db))
if b64:
msg = {"timestamp": {"sec": ts_sec, "nsec": ts_nsec}, "frame_id": "ego_vehicle", "format": "png", "data": b64}
writer.add_message(met_channels[r_type]["rd"], log_time=ts_ns, data=json.dumps(msg).encode(), publish_time=ts_ns)
# RA (Dual: Static Absolute + Dynamic Peak)
ra_p = os.path.join(met_dir, "ra", f"{frame_name}.npy") ra_p = os.path.join(met_dir, "ra", f"{frame_name}.npy")
if os.path.exists(ra_p) and r_type in cached_axes: if os.path.exists(ra_p) and r_type in cached_axes:
ra_data = np.load(ra_p) ra_data = np.load(ra_p)
axes = cached_axes[r_type] axes = cached_axes[r_type]
ra_processed = postprocess_ra(ra_data, axes['range_axis'], smooth_sigma=0.0) ra_processed = postprocess_ra(ra_data, axes['range_axis'], smooth_sigma=0.0)
bev_data = scan_convert_ra(ra_processed, axes['range_axis'], axes['angle_axis'], img_size=512)
b64 = render_heatmap(bev_data, cmap='jet', vmin=-5, vmax=45)
if b64:
msg = {"timestamp": {"sec": ts_sec, "nsec": ts_nsec}, "frame_id": "ego_vehicle", "format": "png", "data": b64}
bev_data = scan_convert_ra(ra_processed, axes['range_axis'], axes['angle_axis'], img_size=512, max_display_range=120.0)
# Static plot (fixed bounds for 1:1 magnitude tracking)
b64_static = render_engines[r_type]['ra_static'].render(bev_data)
if b64_static:
msg = {"timestamp": {"sec": ts_sec, "nsec": ts_nsec}, "frame_id": "ego_vehicle", "format": "png", "data": b64_static}
writer.add_message(met_channels[r_type]["ra"], log_time=ts_ns, data=json.dumps(msg).encode(), publish_time=ts_ns) writer.add_message(met_channels[r_type]["ra"], log_time=ts_ns, data=json.dumps(msg).encode(), publish_time=ts_ns)
# RD (Log-scaled)
rd_p = os.path.join(met_dir, "rd", f"{frame_name}.npy")
if os.path.exists(rd_p):
rd_data = np.log10(np.load(rd_p) + 1e-9)
b64 = render_heatmap(np.flipud(rd_data), cmap='viridis')
# Dynamic plot (auto-scaled to track peak signature)
b64_dynamic = render_engines[r_type]['ra_dyn'].render(bev_data)
if b64_dynamic:
msg_dyn = {"timestamp": {"sec": ts_sec, "nsec": ts_nsec}, "frame_id": "ego_vehicle", "format": "png", "data": b64_dynamic}
writer.add_message(met_channels[r_type]["ra_dynamic"], log_time=ts_ns, data=json.dumps(msg_dyn).encode(), publish_time=ts_ns)
elif os.path.exists(ra_p):
# Fallback: rectangular log plot (no axis info available)
ra_data = np.load(ra_p)
b64 = render_heatmap(np.log10(np.flipud(ra_data) + 1e-9), cmap='magma')
if b64: if b64:
msg = {"timestamp": {"sec": ts_sec, "nsec": ts_nsec}, "frame_id": "ego_vehicle", "format": "png", "data": b64} msg = {"timestamp": {"sec": ts_sec, "nsec": ts_nsec}, "frame_id": "ego_vehicle", "format": "png", "data": b64}
writer.add_message(met_channels[r_type]["rd"], log_time=ts_ns, data=json.dumps(msg).encode(), publish_time=ts_ns)
writer.add_message(met_channels[r_type]["ra"], log_time=ts_ns, data=json.dumps(msg).encode(), publish_time=ts_ns)
# CFAR (Mask)
# CFAR (dB-converted threshold mask)
cfar_p = os.path.join(met_dir, "cfar", f"{frame_name}.npy") cfar_p = os.path.join(met_dir, "cfar", f"{frame_name}.npy")
if os.path.exists(cfar_p): if os.path.exists(cfar_p):
b64 = render_heatmap(np.flipud(np.load(cfar_p)), cmap='plasma')
cf_data = np.load(cfar_p)
cf_db = 10 * np.log10(np.clip(cf_data, 1e-9, None)) - 68.0
b64 = render_engines[r_type]['cfar'].render(np.flipud(cf_db))
if b64: if b64:
msg = {"timestamp": {"sec": ts_sec, "nsec": ts_nsec}, "frame_id": "ego_vehicle", "format": "png", "data": b64} msg = {"timestamp": {"sec": ts_sec, "nsec": ts_nsec}, "frame_id": "ego_vehicle", "format": "png", "data": b64}
writer.add_message(met_channels[r_type]["cfar"], log_time=ts_ns, data=json.dumps(msg).encode(), publish_time=ts_ns) writer.add_message(met_channels[r_type]["cfar"], log_time=ts_ns, data=json.dumps(msg).encode(), publish_time=ts_ns)
# METRICS (Telemetry)
if frame_name in metrics_lookups.get(r_type, {}):
m_payload = metrics_lookups[r_type][frame_name].copy()
m_payload.pop("frame", None)
# TELEMETRY (Flattened for Foxglove Plot panel)
telemetry_row = metrics_lookups.get(r_type, {}).get(frame_name)
if telemetry_row:
telemetry_msg = { telemetry_msg = {
"timestamp": {"sec": ts_sec, "nsec": ts_nsec}, "timestamp": {"sec": ts_sec, "nsec": ts_nsec},
"frame_id": "ego_vehicle", "frame_id": "ego_vehicle",
"metrics": m_payload
**telemetry_row
}
writer.add_message(met_channels[r_type]["telemetry"], log_time=ts_ns, data=json.dumps(telemetry_msg).encode(), publish_time=ts_ns)
# 3D HARDWARE FOV FRUSTUM
axes = cached_axes.get(r_type)
if axes is not None and r_type in FRUSTUM_SPECS:
spec = FRUSTUM_SPECS[r_type]
az_rad = np.radians(spec["az_deg"])
el_rad = np.radians(spec["el_deg"])
fr = spec["max_r"]
c = [
[0.0, 0.0, 0.0],
[fr, -fr * np.tan(az_rad), fr * np.tan(el_rad)],
[fr, fr * np.tan(az_rad), fr * np.tan(el_rad)],
[fr, -fr * np.tan(az_rad), -fr * np.tan(el_rad)],
[fr, fr * np.tan(az_rad), -fr * np.tan(el_rad)],
]
rhs = [{"x": float(v[0]), "y": float(-v[1]), "z": float(v[2])} for v in c]
line_points = [
rhs[0], rhs[1], rhs[0], rhs[2], rhs[0], rhs[3], rhs[0], rhs[4],
rhs[1], rhs[2], rhs[2], rhs[4], rhs[4], rhs[3], rhs[3], rhs[1]
]
frustum_msg = {
"entities": [{
"id": f"radar_fov_{r_type}",
"frame_id": "ego_vehicle",
"timestamp": {"sec": ts_sec, "nsec": ts_nsec},
"lines": [{
"type": 1,
"pose": {"position": {"x": 2.0, "y": 0.0, "z": 1.0}, "orientation": {"x": 0.0, "y": 0.0, "z": 0.0, "w": 1.0}},
"points": line_points,
"thickness": 0.5,
"color": spec["color"]
}]
}]
} }
writer.add_message(metrics_channels[r_type], log_time=ts_ns, data=json.dumps(telemetry_msg).encode(), publish_time=ts_ns)
writer.add_message(met_channels[r_type]["frustum"], log_time=ts_ns, data=json.dumps(frustum_msg).encode(), publish_time=ts_ns)
frame_count += 1 frame_count += 1
if frame_count % 50 == 0: if frame_count % 50 == 0:

10
scripts/generate_shenron.py

@ -64,6 +64,7 @@ def process_session(session_path):
print(f" [DIAGNOSTIC] Step 1: Initializing models...", flush=True) print(f" [DIAGNOSTIC] Step 1: Initializing models...", flush=True)
for r_type in radar_types: for r_type in radar_types:
try: try:
print(f" - Loading physics weights for {r_type}...", flush=True)
models[r_type] = ShenronRadarModel(radar_type=r_type) models[r_type] = ShenronRadarModel(radar_type=r_type)
(session_path / r_type).mkdir(exist_ok=True) (session_path / r_type).mkdir(exist_ok=True)
@ -75,6 +76,15 @@ def process_session(session_path):
# Save physical axes once per session # Save physical axes once per session
np.save(met_base / "range_axis.npy", models[r_type].processor.rangeAxis) np.save(met_base / "range_axis.npy", models[r_type].processor.rangeAxis)
np.save(met_base / "angle_axis.npy", models[r_type].processor.angleAxis) np.save(met_base / "angle_axis.npy", models[r_type].processor.angleAxis)
# Save radar hardware specs for downstream MCAP visualization
radar_hw_specs = {
'f': float(models[r_type].radar_obj.f),
'chirp_rep': float(models[r_type].radar_obj.chirp_rep),
'max_velocity': float((3e8 / models[r_type].radar_obj.f) / (4 * models[r_type].radar_obj.chirp_rep)),
}
with open(met_base / "radar_specs.json", "w") as sf:
json.dump(radar_hw_specs, sf)
except Exception as e: except Exception as e:
print(f" [WARNING] Failed to init {r_type}: {e}") print(f" [WARNING] Failed to init {r_type}: {e}")
continue continue

311
src/main.py

@ -1,29 +1,32 @@
""" """
src/main.py src/main.py
----------- -----------
Scenario-agnostic orchestrator for the CARLA ADAS simulation pipeline.
Entry point for the Fox CARLA ADAS simulation pipeline.
This file is now a thin CLI wrapper around the PipelineManager.
It parses arguments, builds a PipelineContext, and executes the
stage sequence: Simulation Shenron MCAP.
Usage Usage
----- -----
python src/main.py --scenario braking python src/main.py --scenario braking
python src/main.py --scenario cutin
python src/main.py --scenario obstacle --frames 120
python src/main.py --scenario cutin --frames 120
python src/main.py --list-scenarios python src/main.py --list-scenarios
python src/main.py --only-mcap --session data/braking_20260423_093000
python src/main.py --skip-shenron
This file never changes when new scenarios are added. This file never changes when new scenarios are added.
All scenario logic lives in scenarios/<name>.py. All scenario logic lives in scenarios/<name>.py.
""" """
import sys
import os
from pathlib import Path
import argparse import argparse
sys.path.append(os.path.dirname(os.path.dirname(__file__)))
# Add project root to sys.path
sys.path.append(str(Path(__file__).resolve().parents[1]))
import config import config
from scenario_loader import load_scenario, list_scenarios
from scripts.data_to_mcap import convert_folder
from scripts.generate_shenron import process_session as generate_shenron_data
from scenario_loader import list_scenarios
from pathlib import Path from pathlib import Path
@ -33,7 +36,7 @@ from pathlib import Path
def parse_args(): def parse_args():
parser = argparse.ArgumentParser( parser = argparse.ArgumentParser(
description="CARLA ADAS Simulation — scenario-driven runner"
description="CARLA ADAS Simulation — stage-based pipeline runner"
) )
parser.add_argument( parser.add_argument(
"--scenario", "-s", "--scenario", "-s",
@ -62,19 +65,56 @@ def parse_args():
"--weather", "-w", "--weather", "-w",
type=str, type=str,
default=None, default=None,
help="Weather preset (ClearNoon, Rain, etc.). If omitted, scenario or config default is used."
help="Weather preset (ClearNoon, Rain, etc.). "
"If omitted, scenario or config default is used."
) )
parser.add_argument( parser.add_argument(
"--params", "--params",
type=str, type=str,
default=None, default=None,
help="Scenario parameters as key=val pairs, e.g. 'BRAKE_FRAME=100,SPEED=50'"
help="Scenario parameters as key=val pairs, "
"e.g. 'BRAKE_FRAME=100,SPEED=50'"
) )
parser.add_argument( parser.add_argument(
"--list-scenarios", "-l", "--list-scenarios", "-l",
action="store_true", action="store_true",
help="Print available scenarios and exit" help="Print available scenarios and exit"
) )
# --- Pipeline Stage Control ---
parser.add_argument(
"--skip-sim",
action="store_true",
help="Skip the simulation stage (requires --session)"
)
parser.add_argument(
"--skip-shenron",
action="store_true",
help="Skip the Shenron radar synthesis stage"
)
parser.add_argument(
"--skip-mcap",
action="store_true",
help="Skip the MCAP conversion stage"
)
parser.add_argument(
"--only-mcap",
action="store_true",
help="Run only the MCAP stage (requires --session)"
)
parser.add_argument(
"--only-shenron",
action="store_true",
help="Run only the Shenron stage (requires --session)"
)
parser.add_argument(
"--session",
type=str,
default=None,
help="Path to an existing session folder. Required when "
"skipping the simulation stage."
)
return parser.parse_args() return parser.parse_args()
@ -93,7 +133,7 @@ def main():
try: try:
os.remove(flag_path) os.remove(flag_path)
print("[INFO] Cleaned up stale stop.flag") print("[INFO] Cleaned up stale stop.flag")
except Exception as e:
except Exception:
pass pass
if args.list_scenarios: if args.list_scenarios:
@ -102,217 +142,62 @@ def main():
print(f" - {s}") print(f" - {s}")
return return
# CARLA imports only needed for live simulation
import carla
from sensors import SensorManager
from recorder import Recorder
# ------------------------------------------------------------------
# 1. Load & Parameterize scenario
# ------------------------------------------------------------------
scenario = load_scenario(args.scenario)
if args.params:
# Parse "KEY=VAL,KEY2=VAL2"
try:
# Strip outer quotes and spaces before split-processing
p_str = args.params.strip().strip('"').strip("'")
p_dict = {}
for item in p_str.split(","):
if "=" in item:
k, v = item.split("=", 1)
p_dict[k.strip().strip('"').strip("'")] = v.strip().strip('"').strip("'")
scenario.apply_parameters(p_dict)
except Exception as e:
print(f"[ERROR] Failed to parse --params '{args.params}': {e}")
# Determine simulation duration (CLI > Scenario > Config)
max_frames = args.frames
if max_frames is None:
max_frames = scenario.max_frames
if max_frames is None:
max_frames = config.MAX_FRAMES
# ------------------------------------------------------------------
# 2. Connect to CARLA
# ------------------------------------------------------------------
client = carla.Client("localhost", 2000)
client.set_timeout(10.0)
world = client.get_world()
# Apply Weather (CLI > Scenario > Config)
from utils import get_weather_preset
weather_name = args.weather
if weather_name is None:
weather_name = scenario.weather
if weather_name is None:
weather_name = config.DEFAULT_WEATHER
world.set_weather(get_weather_preset(weather_name))
print(f"[INFO] Applied weather: {weather_name}")
blueprint_library = world.get_blueprint_library()
map_ = world.get_map()
# Clean slate: remove all existing vehicles and walkers
for actor in world.get_actors().filter("vehicle.*"):
actor.destroy()
for actor in world.get_actors().filter("walker.*"):
actor.destroy()
print("[INFO] Cleared existing actors")
# ------------------------------------------------------------------ # ------------------------------------------------------------------
# 3. Traffic Manager + Sync mode
# 1. Build PipelineContext
# ------------------------------------------------------------------ # ------------------------------------------------------------------
traffic_manager = client.get_trafficmanager(8000)
traffic_manager.set_synchronous_mode(True)
settings = world.get_settings()
settings.synchronous_mode = True
settings.fixed_delta_seconds = config.DELTA_SECONDS
world.apply_settings(settings)
print(f"[INFO] Sync mode enabled @ {1/config.DELTA_SECONDS:.1f} FPS")
from pipeline.base import PipelineContext
# ------------------------------------------------------------------
# 4. Spawn ego vehicle
# ------------------------------------------------------------------
vehicle_bp = blueprint_library.filter(config.DEFAULT_EGO_MODEL)[0]
spawn_points = map_.get_spawn_points()
ego_vehicle = None
# Priority: CLI Argument > Scenario Preference
sp_req = args.spawn_point
if sp_req is None:
sp_req = scenario.ego_spawn_point
if sp_req is not None:
if isinstance(sp_req, int):
if sp_req < len(spawn_points):
sp = spawn_points[sp_req]
ego_vehicle = world.try_spawn_actor(vehicle_bp, sp)
if ego_vehicle:
print(f"[INFO] Ego spawned at requested point index {sp_req}")
else:
print(f"[WARN] Spawn index {sp_req} out of range (max {len(spawn_points)-1})")
elif isinstance(sp_req, carla.Transform):
ego_vehicle = world.try_spawn_actor(vehicle_bp, sp_req)
if ego_vehicle:
print(f"[INFO] Ego spawned at requested absolute transform: {sp_req.location}")
# Fallback search if no request was made
if ego_vehicle is None:
for i, sp in enumerate(spawn_points):
ego_vehicle = world.try_spawn_actor(vehicle_bp, sp)
if ego_vehicle:
print(f"[INFO] Ego spawned at fallback spawn point index {i}")
break
if ego_vehicle is None:
raise RuntimeError("Failed to spawn ego vehicle")
# If scenario requested a specific absolute transform, move the spawned vehicle there
if sp_req is not None and isinstance(sp_req, carla.Transform):
ego_vehicle.set_transform(sp_req)
print(f"[INFO] Ego moved to requested absolute transform: {sp_req.location}")
ego_vehicle.set_autopilot(True, traffic_manager.get_port())
# Notify scenario of ego spawn (optional hook)
scenario.on_ego_spawned(ego_vehicle)
# ------------------------------------------------------------------
# 5. Attach sensors + recorder
# ------------------------------------------------------------------
sensor_manager = SensorManager(world, blueprint_library, ego_vehicle)
sensor_manager.spawn_sensors()
recorder = None
if not args.no_record:
recorder = Recorder(scenario_name=scenario.name)
spectator = world.get_spectator()
# ------------------------------------------------------------------
# 6. Scenario setup
# ------------------------------------------------------------------
# Tick once to settle ego physics before scenario setup starts calculating waypoints
world.tick()
scenario.setup(world, ego_vehicle, traffic_manager)
print(f"[INFO] Running scenario: '{scenario.name}' for {max_frames} frames")
frame_count = 0
# ------------------------------------------------------------------
# 7. Main simulation loop
# ------------------------------------------------------------------
try:
# Progress Tracking
from tqdm import tqdm
pbar = tqdm(total=max_frames, desc=f"SIMULATING: {scenario.name}", unit=" frames", colour='cyan')
while frame_count < max_frames:
if os.path.exists(flag_path):
print("\n[INFO] Stop flag detected! Breaking simulation loop for graceful shutdown...")
break
world.tick()
frame_count += 1
# Synchronize progress bar counter WITHOUT refreshing (which causes double-prints in logs)
if pbar:
pbar.n = frame_count
cam, cam_tpp, radar, lidar = sensor_manager.get_data()
transform = ego_vehicle.get_transform()
# Third-person spectator view (matched to sensors.py)
spectator.set_transform(
carla.Transform(
transform.location + transform.get_forward_vector() * -5.5 + carla.Location(z=2.8),
carla.Rotation(pitch=transform.rotation.pitch - 15, yaw=transform.rotation.yaw, roll=transform.rotation.roll)
)
ctx = PipelineContext(
scenario_name=args.scenario,
args=args,
) )
# Merge scenario metadata into every frame record
if recorder:
extra_meta = scenario.get_scenario_metadata()
recorder.save(cam, cam_tpp, radar, lidar, ego_vehicle, extra_meta=extra_meta)
# Populate session_path if provided via CLI (for --skip-sim modes)
if args.session:
session = Path(args.session)
if session.exists():
ctx.session_path = session
print(f"[INFO] Using existing session: {session}")
else:
print(f"[ERROR] Session path does not exist: {args.session}")
return
scenario.step(frame_count, ego_vehicle, pbar=pbar)
# Determine which stages to skip
if args.only_mcap:
ctx.skip_stages = ["simulation", "shenron"]
elif args.only_shenron:
ctx.skip_stages = ["simulation", "mcap"]
else:
if args.skip_sim:
ctx.skip_stages.append("simulation")
if args.skip_shenron:
ctx.skip_stages.append("shenron")
if args.skip_mcap:
ctx.skip_stages.append("mcap")
# Validate: if sim is skipped, session_path must be provided
if "simulation" in ctx.skip_stages and ctx.session_path is None:
print("[ERROR] --session is required when skipping the simulation "
"stage (--skip-sim, --only-mcap, --only-shenron).")
return
# ------------------------------------------------------------------ # ------------------------------------------------------------------
# 8. Shutdown (always runs)
# 2. Build & Execute Pipeline
# ------------------------------------------------------------------ # ------------------------------------------------------------------
finally:
if pbar:
pbar.close()
print("\n\n[INFO] Simulation complete. Cleaning up...")
scenario.cleanup()
sensor_manager.destroy()
ego_vehicle.destroy()
if recorder:
recorder.close()
if os.path.exists(recorder.base_path):
# NEW: AUTO-SHENRON Step
print(f"[AUTO-SHENRON] Synthesizing physics-based radar for: {recorder.base_path}")
generate_shenron_data(Path(recorder.base_path))
from pipeline.manager import PipelineManager
from pipeline.stages.sim_stage import SimulationStage
from pipeline.stages.shenron_stage import ShenronStage
from pipeline.stages.mcap_stage import McapStage
from pipeline.stages.video_stage import VideoStage
# AUTO-MCAP Step
print(f"[AUTO-MCAP] Triggering seamless conversion for: {recorder.base_path}")
convert_folder(recorder.base_path)
manager = PipelineManager([
SimulationStage(),
ShenronStage(),
McapStage(),
VideoStage(),
])
# ------------------------------------------------------------------
# EXPLICIT IDLE MODE: Do NOT restore async mode here.
# Leaving the simulator in synchronous_mode freezes the GPU load
# to ~0%, allowing Shenron processes full GPU headroom.
# ------------------------------------------------------------------
manager.execute(ctx)
print("[INFO] Done") print("[INFO] Done")

1
src/pipeline/__init__.py

@ -0,0 +1 @@
# src/pipeline — Stage-based pipeline orchestration for the Fox ADAS framework.

87
src/pipeline/base.py

@ -0,0 +1,87 @@
"""
src/pipeline/base.py
---------------------
Core abstractions for the Fox stage-based pipeline.
Defines:
- PipelineContext: Shared state passed between pipeline stages.
- PipelineStage: Abstract base class that all stages must implement.
"""
import argparse
from abc import ABC, abstractmethod
from dataclasses import dataclass, field
from pathlib import Path
from typing import Optional
@dataclass
class PipelineContext:
"""
Shared state container carried through the pipeline.
Populated by the CLI parser and enriched by each stage as it runs.
For example, SimulationStage writes `session_path` after recording,
and downstream stages (Shenron, MCAP) read it.
"""
# --- Set by CLI / entry point ---
scenario_name: str = "braking"
args: Optional[argparse.Namespace] = None
# --- Enriched by SimulationStage ---
session_path: Optional[Path] = None # e.g. data/braking_20260423_093000
frame_count: int = 0 # Total frames recorded
# --- Pipeline control ---
success: bool = True # False halts remaining stages
skip_stages: list = field(default_factory=list) # Stage names to skip
def should_skip(self, stage_name: str) -> bool:
"""Check if a stage should be skipped based on CLI flags."""
return stage_name in self.skip_stages
class PipelineStage(ABC):
"""
Abstract base class for a single pipeline stage.
Each stage encapsulates one discrete unit of work:
- SimulationStage CARLA capture loop
- ShenronStage Physics-based radar synthesis
- McapStage Foxglove MCAP serialization
Lifecycle
---------
1. manager calls stage.run(context)
2. If run() returns False, the pipeline halts.
3. manager calls stage.cleanup() regardless of success/failure.
"""
@property
@abstractmethod
def name(self) -> str:
"""Human-readable stage identifier (e.g. 'simulation')."""
@abstractmethod
def run(self, ctx: PipelineContext) -> bool:
"""
Execute the stage logic.
Parameters
----------
ctx : PipelineContext
Shared state read inputs, write outputs.
Returns
-------
bool
True if the stage succeeded. False halts the pipeline.
"""
def cleanup(self):
"""
Optional resource teardown (GPU memory, CARLA connections, etc.).
Called by the PipelineManager in a finally block.
"""
pass

100
src/pipeline/manager.py

@ -0,0 +1,100 @@
"""
src/pipeline/manager.py
------------------------
PipelineManager Sequential executor for pipeline stages.
Usage
-----
from pipeline.manager import PipelineManager
from pipeline.stages.sim_stage import SimulationStage
from pipeline.stages.shenron_stage import ShenronStage
from pipeline.stages.mcap_stage import McapStage
manager = PipelineManager([
SimulationStage(),
ShenronStage(),
McapStage(),
])
manager.execute(context)
"""
from pipeline.base import PipelineContext, PipelineStage
class PipelineManager:
"""
Orchestrates the sequential execution of pipeline stages.
Responsibilities
----------------
- Run stages in order, passing a shared PipelineContext.
- Skip stages listed in ctx.skip_stages.
- Halt the pipeline if any stage returns False.
- Ensure cleanup() is called for every stage that was started.
"""
def __init__(self, stages: list[PipelineStage]):
self._stages = stages
def execute(self, ctx: PipelineContext) -> bool:
"""
Run all stages sequentially.
Parameters
----------
ctx : PipelineContext
Shared state for the entire pipeline run.
Returns
-------
bool
True if all stages completed successfully.
"""
started_stages = []
try:
for stage in self._stages:
# Check skip list
if ctx.should_skip(stage.name):
print(f"[PIPELINE] Skipping stage: '{stage.name}'")
continue
# Check if a previous stage failed
if not ctx.success:
print(f"[PIPELINE] Halting — previous stage failed. "
f"Skipping '{stage.name}'.")
break
print(f"\n{'='*60}")
print(f"[PIPELINE] Starting stage: '{stage.name}'")
print(f"{'='*60}")
started_stages.append(stage)
try:
result = stage.run(ctx)
if not result:
ctx.success = False
print(f"[PIPELINE] Stage '{stage.name}' returned "
f"failure. Pipeline will halt.")
except Exception as e:
ctx.success = False
print(f"[PIPELINE] Stage '{stage.name}' raised an "
f"exception: {e}")
import traceback
traceback.print_exc()
finally:
# Cleanup in reverse order (most recent stage first)
for stage in reversed(started_stages):
try:
stage.cleanup()
except Exception as e:
print(f"[PIPELINE] Cleanup error in '{stage.name}': {e}")
if ctx.success:
print(f"\n[PIPELINE] All stages completed successfully.")
else:
print(f"\n[PIPELINE] Pipeline finished with errors.")
return ctx.success

1
src/pipeline/stages/__init__.py

@ -0,0 +1 @@
# src/pipeline/stages — Individual pipeline stage implementations.

55
src/pipeline/stages/mcap_stage.py

@ -0,0 +1,55 @@
"""
src/pipeline/stages/mcap_stage.py
-----------------------------------
McapStage Foxglove MCAP serialization.
Wraps the logic from scripts/data_to_mcap.py into a PipelineStage.
Reads the session folder (camera PNGs, radar/lidar NPYs, Shenron outputs)
and produces a unified .mcap file for Foxglove visualization.
Dashboard Compatibility
-----------------------
This stage preserves the [AUTO-MCAP] stdout pattern that the Dashboard
SSE parser relies on for status updates.
"""
import os
import sys
from pathlib import Path
# Add project root to sys.path
sys.path.append(str(Path(__file__).resolve().parents[3]))
from pipeline.base import PipelineStage, PipelineContext
class McapStage(PipelineStage):
"""
Pipeline stage that converts a recorded session into a Foxglove
MCAP file.
"""
@property
def name(self) -> str:
return "mcap"
def run(self, ctx: PipelineContext) -> bool:
if ctx.session_path is None or not ctx.session_path.exists():
print("[MCAP] No session path found. Skipping.")
return True # Not a failure — just nothing to process
# Import the existing conversion function
from scripts.data_to_mcap import convert_folder
print(f"[AUTO-MCAP] Triggering seamless conversion for: "
f"{ctx.session_path}")
try:
convert_folder(str(ctx.session_path))
except Exception as e:
print(f"[MCAP] Error during MCAP conversion: {e}")
import traceback
traceback.print_exc()
return False # MCAP failure is more serious — flag it
return True

57
src/pipeline/stages/shenron_stage.py

@ -0,0 +1,57 @@
"""
src/pipeline/stages/shenron_stage.py
--------------------------------------
ShenronStage Physics-based radar synthesis from LiDAR data.
Wraps the logic from scripts/generate_shenron.py into a PipelineStage.
Reads augmented LiDAR .npy files from ctx.session_path and produces
Shenron radar pointclouds + metrology heatmaps.
Dashboard Compatibility
-----------------------
This stage preserves the [SHENRON_INIT] and [SHENRON_STEP] stdout
patterns that the Dashboard SSE parser relies on for progress bars.
"""
import os
import sys
from pathlib import Path
# Add project root to sys.path
sys.path.append(str(Path(__file__).resolve().parents[3]))
from pipeline.base import PipelineStage, PipelineContext
from pathlib import Path
class ShenronStage(PipelineStage):
"""
Pipeline stage that runs the Shenron physics-based radar engine
on a recorded simulation session.
"""
@property
def name(self) -> str:
return "shenron"
def run(self, ctx: PipelineContext) -> bool:
if ctx.session_path is None or not ctx.session_path.exists():
print("[SHENRON] No session path found. Skipping.")
return True # Not a failure — just nothing to process
# Import the existing processing function
from scripts.generate_shenron import process_session
print(f"[AUTO-SHENRON] Synthesizing physics-based radar for: "
f"{ctx.session_path}")
try:
process_session(ctx.session_path)
except Exception as e:
print(f"[SHENRON] Error during radar synthesis: {e}")
import traceback
traceback.print_exc()
# Non-fatal: downstream MCAP can still process camera/lidar
return True
return True

268
src/pipeline/stages/sim_stage.py

@ -0,0 +1,268 @@
"""
src/pipeline/stages/sim_stage.py
---------------------------------
SimulationStage CARLA environment management and sensor capture loop.
Extracted from the monolithic main.py. This stage handles:
- CARLA client connection and sync mode setup.
- Ego vehicle spawning and weather application.
- The main world.tick() loop with sensor capture and recording.
- Graceful shutdown via stop.flag detection.
"""
import os
import sys
import math
from pathlib import Path
# Add project root to sys.path (src/pipeline/stages/sim_stage.py -> 3 levels to src, 4 to root)
ROOT_DIR = Path(__file__).resolve().parents[3]
sys.path.append(str(ROOT_DIR))
import config
from pipeline.base import PipelineStage, PipelineContext
from scenario_loader import load_scenario
from pathlib import Path
class SimulationStage(PipelineStage):
"""
Pipeline stage that runs the live CARLA simulation capture loop.
Writes raw sensor data (camera PNGs, radar/lidar NPYs, frames.jsonl)
to disk and populates ctx.session_path for downstream stages.
"""
@property
def name(self) -> str:
return "simulation"
def run(self, ctx: PipelineContext) -> bool:
# Late imports — CARLA is only needed for this stage
import carla
from sensors import SensorManager
from recorder import Recorder
args = ctx.args
# ------------------------------------------------------------------
# 1. Load & Parameterize scenario
# ------------------------------------------------------------------
scenario = load_scenario(args.scenario)
if args.params:
try:
p_str = args.params.strip().strip('"').strip("'")
p_dict = {}
for item in p_str.split(","):
if "=" in item:
k, v = item.split("=", 1)
p_dict[k.strip().strip('"').strip("'")] = (
v.strip().strip('"').strip("'")
)
scenario.apply_parameters(p_dict)
except Exception as e:
print(f"[ERROR] Failed to parse --params '{args.params}': {e}")
# Determine simulation duration (CLI > Scenario > Config)
max_frames = args.frames
if max_frames is None:
max_frames = scenario.max_frames
if max_frames is None:
max_frames = config.MAX_FRAMES
# ------------------------------------------------------------------
# 2. Connect to CARLA
# ------------------------------------------------------------------
client = carla.Client("localhost", 2000)
client.set_timeout(10.0)
world = client.get_world()
# Apply Weather (CLI > Scenario > Config)
from utils import get_weather_preset
weather_name = args.weather
if weather_name is None:
weather_name = scenario.weather
if weather_name is None:
weather_name = config.DEFAULT_WEATHER
world.set_weather(get_weather_preset(weather_name))
print(f"[INFO] Applied weather: {weather_name}")
blueprint_library = world.get_blueprint_library()
map_ = world.get_map()
# Clean slate: remove all existing vehicles and walkers
for actor in world.get_actors().filter("vehicle.*"):
actor.destroy()
for actor in world.get_actors().filter("walker.*"):
actor.destroy()
print("[INFO] Cleared existing actors")
# ------------------------------------------------------------------
# 3. Traffic Manager + Sync mode
# ------------------------------------------------------------------
traffic_manager = client.get_trafficmanager(8000)
traffic_manager.set_synchronous_mode(True)
settings = world.get_settings()
settings.synchronous_mode = True
settings.fixed_delta_seconds = config.DELTA_SECONDS
world.apply_settings(settings)
print(f"[INFO] Sync mode enabled @ {1/config.DELTA_SECONDS:.1f} FPS")
# ------------------------------------------------------------------
# 4. Spawn ego vehicle
# ------------------------------------------------------------------
vehicle_bp = blueprint_library.filter(config.DEFAULT_EGO_MODEL)[0]
spawn_points = map_.get_spawn_points()
ego_vehicle = None
# Priority: CLI Argument > Scenario Preference
sp_req = args.spawn_point
if sp_req is None:
sp_req = scenario.ego_spawn_point
if sp_req is not None:
if isinstance(sp_req, int):
if sp_req < len(spawn_points):
sp = spawn_points[sp_req]
ego_vehicle = world.try_spawn_actor(vehicle_bp, sp)
if ego_vehicle:
print(f"[INFO] Ego spawned at requested point "
f"index {sp_req}")
else:
print(f"[WARN] Spawn index {sp_req} out of range "
f"(max {len(spawn_points)-1})")
elif isinstance(sp_req, carla.Transform):
ego_vehicle = world.try_spawn_actor(vehicle_bp, sp_req)
if ego_vehicle:
print(f"[INFO] Ego spawned at requested absolute "
f"transform: {sp_req.location}")
# Fallback search if no request was made
if ego_vehicle is None:
for i, sp in enumerate(spawn_points):
ego_vehicle = world.try_spawn_actor(vehicle_bp, sp)
if ego_vehicle:
print(f"[INFO] Ego spawned at fallback spawn point "
f"index {i}")
break
if ego_vehicle is None:
print("[ERROR] Failed to spawn ego vehicle")
return False
# If scenario requested a specific absolute transform, move there
if sp_req is not None and isinstance(sp_req, carla.Transform):
ego_vehicle.set_transform(sp_req)
print(f"[INFO] Ego moved to requested absolute transform: "
f"{sp_req.location}")
ego_vehicle.set_autopilot(True, traffic_manager.get_port())
# Notify scenario of ego spawn (optional hook)
scenario.on_ego_spawned(ego_vehicle)
# ------------------------------------------------------------------
# 5. Attach sensors + recorder
# ------------------------------------------------------------------
sensor_manager = SensorManager(world, blueprint_library, ego_vehicle)
sensor_manager.spawn_sensors()
recorder = None
if not args.no_record:
recorder = Recorder(scenario_name=scenario.name)
spectator = world.get_spectator()
# ------------------------------------------------------------------
# 6. Scenario setup
# ------------------------------------------------------------------
# Tick once to settle ego physics before scenario setup
world.tick()
scenario.setup(world, ego_vehicle, traffic_manager)
print(f"[INFO] Running scenario: '{scenario.name}' for "
f"{max_frames} frames")
frame_count = 0
flag_path = ROOT_DIR / "tmp" / "stop.flag"
# ------------------------------------------------------------------
# 7. Main simulation loop
# ------------------------------------------------------------------
try:
from tqdm import tqdm
pbar = tqdm(total=max_frames,
desc=f"SIMULATING: {scenario.name}",
unit=" frames", colour='cyan')
while frame_count < max_frames:
if os.path.exists(flag_path):
print("\n[INFO] Stop flag detected! Breaking simulation "
"loop for graceful shutdown...")
break
world.tick()
frame_count += 1
# Sync progress bar without refreshing
if pbar:
pbar.n = frame_count
cam, cam_tpp, radar, lidar = sensor_manager.get_data()
transform = ego_vehicle.get_transform()
# Third-person spectator view
spectator.set_transform(
carla.Transform(
transform.location +
transform.get_forward_vector() * -5.5 +
carla.Location(z=2.8),
carla.Rotation(
pitch=transform.rotation.pitch - 15,
yaw=transform.rotation.yaw,
roll=transform.rotation.roll
)
)
)
# Record frame
if recorder:
extra_meta = scenario.get_scenario_metadata()
recorder.save(cam, cam_tpp, radar, lidar, ego_vehicle,
extra_meta=extra_meta)
scenario.step(frame_count, ego_vehicle, pbar=pbar)
# ------------------------------------------------------------------
# 8. Shutdown (always runs)
# ------------------------------------------------------------------
finally:
if pbar:
pbar.close()
print("\n\n[INFO] Simulation complete. Cleaning up...")
scenario.cleanup()
sensor_manager.destroy()
ego_vehicle.destroy()
if recorder:
recorder.close()
# Populate context for downstream stages
ctx.session_path = Path(recorder.base_path)
ctx.frame_count = recorder.frame_id
ctx.scenario_name = scenario.name
# ------------------------------------------------------------------
# EXPLICIT IDLE MODE: Leave the simulator in synchronous mode to
# freeze GPU load ~0%, giving Shenron full GPU headroom.
# ------------------------------------------------------------------
print("[INFO] SimulationStage done")
return True

72
src/pipeline/stages/video_stage.py

@ -0,0 +1,72 @@
"""
src/pipeline/stages/video_stage.py
----------------------------------
VideoStage Post-processing utility for generating MP4 previews.
Decoupled from the Recorder to prevent blocking the simulation-to-processing
transition. This stage runs at the very end of the pipeline.
"""
import os
import cv2
from pathlib import Path
from pipeline.base import PipelineStage, PipelineContext
# Add project root to sys.path
sys.path.append(str(Path(__file__).resolve().parents[3]))
class VideoStage(PipelineStage):
"""
Pipeline stage that stitches captured camera frames into .mp4 videos.
"""
@property
def name(self) -> str:
return "video_generation"
def run(self, ctx: PipelineContext) -> bool:
if ctx.session_path is None or not ctx.session_path.exists():
print("[VIDEO] No session path found. Skipping.")
return True
camera_path = ctx.session_path / "camera"
camera_tpp_path = ctx.session_path / "camera_tpp"
print(f"[VIDEO] Generating video previews for: {ctx.session_path}", flush=True)
# Configs: (folder, output_name)
configs = [
(camera_path, "maneuver_dash.mp4"),
(camera_tpp_path, "maneuver_tpp.mp4")
]
for folder, out_name in configs:
if not folder.exists():
continue
images = sorted([img for img in os.listdir(folder) if img.endswith(".png")])
if not images:
continue
first_frame_path = folder / images[0]
first_frame = cv2.imread(str(first_frame_path))
if first_frame is None:
continue
h, w, _ = first_frame.shape
out_path = ctx.session_path / out_name
# Using mp4v codec for broad compatibility
fourcc = cv2.VideoWriter_fourcc(*'mp4v')
out = cv2.VideoWriter(str(out_path), fourcc, 20.0, (w, h))
for img_name in images:
frame = cv2.imread(str(folder / img_name))
if frame is not None:
out.write(frame)
out.release()
print(f" - Video saved: {out_name}", flush=True)
return True

1
src/processing/__init__.py

@ -0,0 +1 @@
# src/processing — Reusable physics and data-augmentation utilities.

200
src/processing/physics.py

@ -0,0 +1,200 @@
"""
src/processing/physics.py
--------------------------
Reusable physics utilities for sensor data augmentation.
Extracted from the monolithic recorder.py to enable:
- Standalone re-processing of existing datasets.
- Unit testing without a live CARLA connection.
- Shared use by the Recorder and future analysis tools.
"""
import math
from types import SimpleNamespace
import numpy as np
# -----------------------------------------------------------------------
# Radial Velocity Injection (for Shenron Radar)
# -----------------------------------------------------------------------
def calculate_radial_velocity(lidar_data, vehicle, world):
"""
Augment raw semantic LiDAR data with per-point radial velocity.
Takes the 6-column CARLA semantic LiDAR output [x, y, z, cos, obj, tag]
and injects a radial_speed column, producing a 7-column array:
[x, y, z, radial_speed, cos, obj, tag].
Radial speed is the projection of relative velocity onto the
line-of-sight (LOS) vector for each point. A positive value means
the target is moving away from the sensor.
Parameters
----------
lidar_data : np.ndarray
Raw reshaped LiDAR array with shape (N, 6) from CARLA.
vehicle : carla.Vehicle
The ego vehicle actor (used for velocity and yaw).
world : carla.World
The CARLA world (used to look up actor velocities by ID).
Returns
-------
np.ndarray
Augmented array with shape (N, 7):
[x, y, z, radial_speed, cos, obj, tag].
"""
total_points = lidar_data.shape[0]
if total_points == 0:
return np.empty((0, 7), dtype=np.float32)
# 1. Ego velocity in local (sensor-aligned) coordinates
ego_vel = vehicle.get_velocity()
yaw_rad = math.radians(vehicle.get_transform().rotation.yaw)
c, s = math.cos(yaw_rad), math.sin(yaw_rad)
ego_vx_local = ego_vel.x * c + ego_vel.y * s
ego_vy_local = -ego_vel.x * s + ego_vel.y * c
ego_vel_local = np.array([ego_vx_local, ego_vy_local, ego_vel.z],
dtype=np.float32)
# 2. Relative velocity for each point (static world by default)
V_rel_all = np.zeros((total_points, 3), dtype=np.float32)
V_rel_all[:] = -ego_vel_local
# Extract actor IDs via bitwise reinterpretation
obj_ids = lidar_data[:, 4].astype(np.float32).view(np.uint32)
unique_hit_ids = np.unique(obj_ids)
for act_id in unique_hit_ids:
if act_id == 0:
continue
act = world.get_actor(int(act_id))
if act is not None:
act_vel = act.get_velocity()
ax_l = act_vel.x * c + act_vel.y * s
ay_l = -act_vel.x * s + act_vel.y * c
az_l = act_vel.z
V_rel_all[obj_ids == act_id] = (
np.array([ax_l, ay_l, az_l], dtype=np.float32) - ego_vel_local
)
# 3. Project onto LOS unit vector
pts = lidar_data[:, 0:3]
ranges = np.linalg.norm(pts, axis=1)
safe_ranges = np.where(ranges < 0.001, 1.0, ranges)
unit_LOS = pts / safe_ranges[:, None]
# Positive radial_speed ⇒ distance increasing (moving away)
radial_speed = np.sum(V_rel_all * unit_LOS, axis=1, keepdims=True)
# 4. Assemble output: [x, y, z, radial_speed, cos, obj, tag]
augmented = np.hstack((
lidar_data[:, 0:3],
radial_speed,
lidar_data[:, 3:6]
))
return augmented
# -----------------------------------------------------------------------
# ADAS Relative Metrics
# -----------------------------------------------------------------------
def to_local_location(transform, location):
"""
Convert a world-frame location to a transform-local location.
Applies inverse translation and yaw rotation (pitch/roll ignored
for horizontal ADAS metrics).
Parameters
----------
transform : carla.Transform
The reference frame (typically the ego vehicle).
location : carla.Location
The world-frame location to convert.
Returns
-------
SimpleNamespace
Object with .x, .y, .z in the local frame.
"""
rel_loc = location - transform.location
yaw_rad = math.radians(transform.rotation.yaw)
c, s = math.cos(yaw_rad), math.sin(yaw_rad)
lx = rel_loc.x * c + rel_loc.y * s
ly = -rel_loc.x * s + rel_loc.y * c
return SimpleNamespace(x=lx, y=ly, z=rel_loc.z)
def calculate_relative_metrics(ego, npc):
"""
Calculate range, azimuth, and closing velocity between ego and an NPC.
Parameters
----------
ego : carla.Vehicle
The ego vehicle actor.
npc : carla.Actor
The target NPC actor.
Returns
-------
dict
{"range": float, "azimuth": float, "closing_velocity": float}
"""
e_t = ego.get_transform()
n_t = npc.get_transform()
e_v = ego.get_velocity()
n_v = npc.get_velocity()
# 1. Range (Euclidean distance)
rel_pos_v = n_t.location - e_t.location
rng = rel_pos_v.length()
if rng < 0.1: # avoid div by zero
return {"range": rng, "azimuth": 0.0, "closing_velocity": 0.0}
# 2. Azimuth — angle in ego's local frame
rel_pos_local = to_local_location(e_t, n_t.location)
azimuth = math.degrees(math.atan2(rel_pos_local.y, rel_pos_local.x))
# 3. Closing Velocity
# V_c = -(V_npc - V_ego) · (P_npc - P_ego) / |P_npc - P_ego|
rel_vel = n_v - e_v
unit_los = rel_pos_v / rng
closing_vel = -(rel_vel.x * unit_los.x +
rel_vel.y * unit_los.y +
rel_vel.z * unit_los.z)
return {
"range": round(rng, 3),
"azimuth": round(azimuth, 3),
"closing_velocity": round(closing_vel, 3)
}
def get_actor_class(actor) -> str:
"""
Categorise a CARLA actor into broad ADAS classes.
Returns
-------
str
One of: "vehicle", "vru", "pedestrian", "unknown".
"""
type_id = actor.type_id
if "walker" in type_id:
return "pedestrian"
if "vehicle" in type_id:
if "bicycle" in type_id or "motorcycle" in type_id:
return "vru" # Vulnerable Road User
return "vehicle"
return "unknown"

168
src/recorder.py

@ -2,12 +2,17 @@ import os
import json import json
import math import math
import datetime import datetime
from types import SimpleNamespace
from concurrent.futures import ThreadPoolExecutor from concurrent.futures import ThreadPoolExecutor
import numpy as np import numpy as np
import cv2 import cv2
from processing.physics import (
calculate_radial_velocity,
calculate_relative_metrics,
get_actor_class,
)
class Recorder: class Recorder:
def __init__(self, base_path="data", scenario_name="run"): def __init__(self, base_path="data", scenario_name="run"):
@ -81,55 +86,13 @@ class Recorder:
# -------- LIDAR (Semantic) -------- # -------- LIDAR (Semantic) --------
# Dynamic reshape to handle semantic columns: [x, y, z, cos, obj, tag] # Dynamic reshape to handle semantic columns: [x, y, z, cos, obj, tag]
lidar_data = np.frombuffer(lidar.raw_data, dtype=np.float32)
lidar_raw = np.frombuffer(lidar.raw_data, dtype=np.float32)
total_points = len(lidar) total_points = len(lidar)
if total_points > 0: if total_points > 0:
lidar_data = np.reshape(lidar_data, (total_points, -1))
# --- CALCULATE RADIAL VELOCITY FOR SHENRON ---
lidar_raw = np.reshape(lidar_raw, (total_points, -1))
# Delegate radial velocity calculation to the processing layer
world = vehicle.get_world() world = vehicle.get_world()
# 1. Ego Velocity in local Sensor coordinates (approx matched with Ego)
ego_vel = vehicle.get_velocity()
yaw_rad = math.radians(vehicle.get_transform().rotation.yaw)
c, s = math.cos(yaw_rad), math.sin(yaw_rad)
ego_vx_local = ego_vel.x * c + ego_vel.y * s
ego_vy_local = -ego_vel.x * s + ego_vel.y * c
ego_vel_local = np.array([ego_vx_local, ego_vy_local, ego_vel.z], dtype=np.float32)
# 2. V_rel for each point (static by default)
V_rel_all = np.zeros((total_points, 3), dtype=np.float32)
V_rel_all[:] = -ego_vel_local
# A correctly interpreted bitview to extract integer IDs
obj_ids = lidar_data[:, 4].astype(np.float32).view(np.uint32)
unique_hit_ids = np.unique(obj_ids)
for act_id in unique_hit_ids:
if act_id == 0: continue
act = world.get_actor(int(act_id))
if act is not None:
act_vel = act.get_velocity()
ax_l = act_vel.x * c + act_vel.y * s
ay_l = -act_vel.x * s + act_vel.y * c
az_l = act_vel.z
V_rel_all[obj_ids == act_id] = np.array([ax_l, ay_l, az_l], dtype=np.float32) - ego_vel_local
# 3. Project to Line of Sight (LOS) unit vector
pts = lidar_data[:, 0:3]
ranges = np.linalg.norm(pts, axis=1)
safe_ranges = np.where(ranges < 0.001, 1.0, ranges)
unit_LOS = pts / safe_ranges[:, None]
# A positive radial_speed means distance is increasing (away from sensor)
radial_speed = np.sum(V_rel_all * unit_LOS, axis=1, keepdims=True)
# 4. Inject speed cleanly: [x, y, z, radial_speed, cos, obj, tag]
lidar_data = np.hstack((
lidar_data[:, 0:3],
radial_speed,
lidar_data[:, 3:6]
))
lidar_data = calculate_radial_velocity(lidar_raw, vehicle, world)
else: else:
lidar_data = np.empty((0, 7)) # Default to 7 columns for semantic + velocity lidar_data = np.empty((0, 7)) # Default to 7 columns for semantic + velocity
@ -148,9 +111,6 @@ class Recorder:
gt_actors = [] gt_actors = []
ego_loc = transform.location
ego_vel = vehicle.get_velocity()
for actor in actors: for actor in actors:
if actor.id == vehicle.id: if actor.id == vehicle.id:
continue # skip ego continue # skip ego
@ -164,12 +124,12 @@ class Recorder:
bb = actor.bounding_box bb = actor.bounding_box
extent = bb.extent # half-size extent = bb.extent # half-size
# 3. Relative Metrics (ADAS)
rel_metrics = self._calculate_relative_metrics(vehicle, actor)
# 3. Relative Metrics (ADAS) — delegated to processing layer
rel_metrics = calculate_relative_metrics(vehicle, actor)
gt_actors.append({ gt_actors.append({
"id": actor.id, "id": actor.id,
"class": self._get_actor_class(actor),
"class": get_actor_class(actor),
"type": actor.type_id, "type": actor.type_id,
"transform": { "transform": {
"x": t.location.x, "y": t.location.y, "z": t.location.z, "x": t.location.x, "y": t.location.y, "z": t.location.z,
@ -214,106 +174,4 @@ class Recorder:
def close(self): def close(self):
print(f"[INFO] Finalizing recording... Waiting for background image tasks.") print(f"[INFO] Finalizing recording... Waiting for background image tasks.")
self.executor.shutdown(wait=True) self.executor.shutdown(wait=True)
# New: Generate MP4 videos automatically
self._generate_videos()
self.meta_f.close() self.meta_f.close()
def _generate_videos(self):
"""Stitch captured frames into .mp4 files for easy viewing."""
print(f"[INFO] Generating video previews...", flush=True)
# We'll do this for both cameras
configs = [
(self.camera_path, "maneuver_dash.mp4"),
(self.camera_tpp_path, "maneuver_tpp.mp4")
]
for folder, out_name in configs:
images = sorted([img for img in os.listdir(folder) if img.endswith(".png")])
if not images:
continue
first_frame = cv2.imread(os.path.join(folder, images[0]))
h, w, _ = first_frame.shape
out_path = os.path.join(self.base_path, out_name)
# Using mp4v codec for broad compatibility
fourcc = cv2.VideoWriter_fourcc(*'mp4v')
out = cv2.VideoWriter(out_path, fourcc, 20.0, (w, h))
for img_name in images:
frame = cv2.imread(os.path.join(folder, img_name))
out.write(frame)
out.release()
print(f" - Video saved: {out_name}", flush=True)
# ---------------- HELPERS ----------------
def _get_actor_class(self, actor) -> str:
"""Categorise actor into broad ADAS classes."""
type_id = actor.type_id
if "walker" in type_id:
return "pedestrian"
if "vehicle" in type_id:
if "bicycle" in type_id or "motorcycle" in type_id:
return "vru" # Vulnerable Road User
return "vehicle"
return "unknown"
def _calculate_relative_metrics(self, ego, npc) -> dict:
"""
Calculate relative range, azimuth, and closing velocity.
Uses right-handed coordinate projections where necessary.
"""
e_t = ego.get_transform()
n_t = npc.get_transform()
e_v = ego.get_velocity()
n_v = npc.get_velocity()
# 1. Range (Euclidean distance)
rel_pos_v = n_t.location - e_t.location
rng = rel_pos_v.length()
if rng < 0.1: # avoid div by zero
return {"range": rng, "azimuth": 0.0, "closing_velocity": 0.0}
# 2. Azimuth (Local angle in degrees)
# Project relative position into ego's local frame
# CARLA forward is X+, Right is Y+ (left-handed)
forward = e_t.get_forward_vector()
# Simple dot-product for angle (cosine similarity)
# We use atan2 for full 360 bearing
# rel_pos_v in ego local coordinates
rel_pos_local = self._to_local_location(e_t, n_t.location)
azimuth = math.degrees(math.atan2(rel_pos_local.y, rel_pos_local.x))
# 3. Closing Velocity (V_c)
# Projection of relative velocity onto the unit line-of-sight vector
# V_c = -(V_npc - V_ego) . (P_npc - P_ego) / |P_npc - P_ego|
rel_vel = n_v - e_v
unit_los = rel_pos_v / rng
closing_vel = -(rel_vel.x * unit_los.x + rel_vel.y * unit_los.y + rel_vel.z * unit_los.z)
return {
"range": round(rng, 3),
"azimuth": round(azimuth, 3),
"closing_velocity": round(closing_vel, 3)
}
def _to_local_location(self, transform, location):
"""Helper to convert world location to transform-local location."""
# Simple translation and rotation inverse
# CARLA locations also have raw_data but subtraction is easier
rel_loc = location - transform.location
# Inverse rotation (Yaw only for simplicity of horizontal metrics)
yaw_rad = math.radians(transform.rotation.yaw)
c, s = math.cos(yaw_rad), math.sin(yaw_rad)
# Rotate rel_loc vector by -yaw
lx = rel_loc.x * c + rel_loc.y * s
ly = -rel_loc.x * s + rel_loc.y * c
return SimpleNamespace(x=lx, y=ly, z=rel_loc.z)

4
tmp/test_import.py

@ -0,0 +1,4 @@
import sys
sys.path.append('scripts/ISOLATE')
from sim_radar_utils.plots import FastHeatmapEngine, postprocess_ra, scan_convert_ra, render_heatmap
print("All imports OK")
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