- Clamp delta time to minimum of 0 to prevent negative interpolation.
- Add protection against division by zero in SNR color mapping.
- Ensure trajectory points exist before fading alpha calculation.
- Standardize p.deltaTime usage for cross-browser stability.
Refactors animation and interpolation logic to ensure consistent behavior
across different monitor refresh rates (e.g., 60Hz vs 144Hz).
Changes:
- Implement time-delta adjusted smoothing for FPS counter and mouse tracking.
- Update IFT graph scaling in 'dom.js' to use performance-based delta time.
- Remove hardcoded 60FPS limit in zoom sketch to allow native refresh rates.
- Fix vertical tooltip jitter in 'drawUtils.js' by using smoothed mouse coordinates.
- Add 'lastOverlayUpdateTime' to global state for cross-module time tracking.
Adds linear interpolation (lerp) to mouse coordinates in the zoom view
to prevent jitter and provide a smoother user experience when inspecting
radar points.
Changes:
- Add `smoothedMouseX` and `smoothedMouseY` state to `radarSketch.js`.
- Apply smoothing factor (0.5) to mouse movement in the main draw loop.
- Update `handleCloseUpDisplay` and zoom sketch drawing to use smoothed coordinates.
- Ensure coordinates snap to mouse position on the first frame to prevent visual jumping.
- Implemented smooth dynamic scaling for the Inter-Frame Timing (IFT) graph that remains active even when playback is paused.
- Added a conditional `requestAnimationFrame` loop to ensure the graph scale converges smoothly to the target value during scrubbing or pause states.
- Tuned animation speeds: fast convergence (0.1 smoothing) during playback, slower (0.033) when paused for a more polished visual transition.
- Fixed a layout thrashing (forced reflow) performance issue in `updatePersistentOverlays` by reading `clientWidth` before writing text updates to the DOM.
radar view (src/drawUtils.js):
- Refactored drawTrackMarkers with a smart collision-resolution algorithm for floating labels.
- Added leader lines and themed tooltips for track IDs and speed data to prevent overlapping.
- Optimized velocity vectors with arrowheads and reduced thickness for better clarity.
- Updated drawRegionsOfInterest to use ROI_CLOSE_Y_MAX constant.
speed graph (src/p5/speedGraphSketch.js):
- Implemented a MATLAB-style spectral color scheme (Blue-Cyan-Green-Yellow-Red) to visualize track density on the CAN speed
line.
- Added a vertical smooth gradient legend bar for track density.
- Switched to robust 95th percentile normalization for density mapping to mitigate outlier noise.
- Synchronized density calculations with the "Confirmed Only" toggle.
- Updated the horizontal legend to reflect density-based coloring.
zoom view (src/p5/zoomSketch.js):
- Adjusted tooltip vertical offset for improved diagonal positioning.
- Disabled internal track detail boxes to prioritize the specialized zoom tooltip system.
- Implement robust fallback and safety logic to prevent division-by-zero or invalid state crashes.
- Update scale calculations and drawing utilities to use dynamic boundaries from appState.
- Refine radar-info-overlay to match plot width and center text content for better alignment.
- Add double-click reset functionality to the range slider to revert to default constants.
- Fix hover detection bug in God Mode during scroll-zoom interactions.
- Ensure Regions of Interest (ROI) scale proportionally with the dynamic plot range.
2 Take a look at edge cases.
3 - Implement a "Living Documentation" tool integrated directly into the application.
4 - Create a 3D-styled visual navigation map representing UI components and data flow.
5 - Add a color-coded file explorer themed by architectural section (Core, Sync, UI, etc.).
6 - Implement smart "Mini-Map" UX: docks to corner on scroll with hover-to-expand.
7 - Add local PrismJS support for high-performance source code syntax highlighting.
8 - Optimize navigation with animation locks and automatic scroll-position resets.
Vehicle Dimensions:
- Added "Show Dimensions" toggle to the display settings.
- Implemented `drawObjectDimensions` in `drawUtils.js` to render object extents as oriented rectangles based on `objectExtentRadii` and `objectExtentAngle`.
- Updated `radarSketch.js` to draw dimensions when enabled.
- Ensured dimensions and covariance ellipses are drawn at the `correctedPosition` for accurate alignment with track markers.
Track Visualization:
- Updated `drawTrajectories` to prioritize the `risk` property on track logs for coloring (0=Low/Blue, 1=Medium/Orange, 2=High/Red).
- Added fallback to `ttcCategoryTimeline` for backward compatibility.
- Fixed off-by-one error in trajectory history filtering to prevent drawing future points.
Frame Synchronization & UI:
- Refactored frame number display logic across Overlays, Data Explorer, and Timeline.
- UI now displays the actual `frameIdx` from the data source instead of the internal array index, resolving discrepancies between the Data Explorer and the main view.
This commit introduces several improvements to the radar visualization, focusing on responsiveness, error handling, and clearer data representation.
**Key Changes:**
* **Responsive Radar Overlay:** The persistent radar information overlay (`ift-dot-matrix` canvas) in `dom.js` is no longer a fixed size. It now dynamically adjusts its width to match the radar plot's size, ensuring a consistent visual experience across different screen resolutions and resize events. The internal drawing logic has been updated to dynamically calculate column counts based on the canvas's current dimensions.
* **Improved Error Handling in Drawing Utilities:** Comprehensive `try...catch` blocks have been added to all major drawing functions within `drawUtils.js`. This significantly enhances the application's robustness by gracefully handling potential errors during rendering, preventing crashes and providing better debugging insights.
* **TTC Category Fallback:** In `drawUtils.js`, the trajectory drawing logic for Time-to-Collision (TTC) now includes a fallback mechanism. If a track's `ttcCategory` is undefined or invalid, it will default to a neutral gray color, ensuring that trajectories are always rendered with a clear visual state.
- Implemented a "First Run" detection using `sessionStorage`.
- The User Guide modal now appears automatically when application is launched in a new tab or window.
- Logic added to skip the automatic file loading (cached session) on the first run to ensure a clean start for new sessions.
- Subsequent page reloads within the same session will hide the guide and resume the cached session as normal.
- Create shortcuts.html as a standalone reference page.
- Implement #shortcuts-modal in index.html to display key bindings.
- Implement #guide-modal with an iframe to embed User_Manual.html directly in the app.
- Refactor header navigation into color-coded buttons (Green/Blue/Amber-Indigo).
- Update src/dom.js and src/ui.js to handle modal visibility and interactions (ESC key, 'k' key, click-to-close).
- Improve visual consistency of header button heights and modal styling.
Create `shortcuts.html` as a standalone reference page.
Implement `#shortcuts-modal` in `index.html` to display key bindings.
Implement `#guide-modal` with an iframe to embed `User_Manual.html` directly in the app.
Refactor header navigation into color-coded buttons (Green/Blue/Amber-Indigo).
Update `src/dom.js` and `src/ui.js` to handle modal visibili and interactions (ESC key, 'k' key, click-to-close).
Improve visual consistency of header button heights and moda styling.
This commit refactors the monolithic `main.js` file to improve modularity, maintainability, and separation of concerns. The core application logic is now organized into more focused modules.
- **UI Logic (`ui.js`):** All general UI event listeners, including feature toggles, sliders, menu controls, and tooltips, have been moved from `main.js` into a new `src/ui.js` module. This centralizes UI-specific behavior.
- **Session Management (`session.js`):** The functionality for saving and loading application sessions has been extracted into a dedicated `src/session.js` module. This isolates all logic related to session state serialization and file handling.
- **`main.js` Simplification:** The `main.js` file now serves as a cleaner entry point, responsible for initializing all the different application modules in the correct order.
**Bug Fixes during Refactoring:**
- Corrected an issue where activating "God Mode" (`toggleCloseUp`) did not properly start the p5.js `loop()`, preventing the visualization from updating with mouse movement.
- Ensured the `toggleConfirmedOnly` state is now correctly saved and restored as part of the session file.
Adds a 'wheel' event listener to the speed graph container, binding it to the existing `handleTimelineWheel` function.
This change enhances user experience by allowing timeline scrubbing via the mouse scroll wheel when the cursor is over the speed graph. It creates consistent behavior across all major visualization components (radar canvas, timeline, and speed graph), improving the application's usability.
The logic is centralized within `initSyncUIHandlers` in `sync.js` to keep all synchronization-related event bindings in one place.
Improves the time offset feature by making manual offsets persistent and enhancing the user workflow.
- **Persistent Manual Offsets**: Manual offsets are now saved to IndexedDB, keyed by filename. They are automatically applied when the same file is loaded in a future session.
- **Click to Revert & Forget**: The "Manual" status indicator is now clickable. Clicking it reverts to the auto-calculated offset and, crucially, deletes the saved manual offset from the database. This ensures future sessions will correctly default to the automatic calculation.
- **Consistent UI**: The "Manual" indicator now appears instantly with a consistent gray style, whether set manually or loaded from cache, removing UI ambiguity.
- **Refactored Sync Logic**: The `revertToAutoOffset` function has been refactored to reuse the core `forceResyncWithOffset` logic. This reduces code duplication and centralizes the synchronization process, making it more robust and easier to maintain.
Resolve infinite p5.js auto-draw loop during file processing by ensuring comprehensive UI cleanup and correct p5 instance lifecycle management (`redraw` instead of `lo`).
Introduce conditional video retention in `resetUIForNewLoad`, allowing the loaded video to persist when only new JSON data is supplied.
The new loop iterates through the data and draws rectangles directly to the canvas. It changes ctx.fillStyle more often (once per column), but this cost is negligible to the cost of allocating and collecting memory 60 times a second. This should resolve the heap memory issue you observed.
theme redraw
2
3 - Implemented hover tooltips in `speedGraphSketch.js` to displ
CAN/Ego speeds and timestamps.
4 - Added drag-to-seek (scrubbing) and click-to-seek functionali
using native pointer events for smooth navigation.
5 - Integrated graph seeking with centralized `updateFrame` logi
to ensure consistent video synchronization and UI updates.
6 - Refactored input handling to use DOM listeners on the canvas
resolving conflicts with global p5 events (e.g., play button
issues).
7 - Optimized `theme.js` to redraw only the static graph buffer
theme changes instead of re-processing the entire dataset.
This commit introduces a series of significant improvements to the file processing pipeline and UI update logic, resolving several critical bugs related to state management, UI freezes, and component rendering. The primary goal was to decouple UI components from strict file dependencies and ensure the application remains responsive and predictable under various file loading scenarios.
### Key Changes and Fixes:
1. **Graceful Handling of File Swapping (Fixes UI Freeze):**
- Resolved a critical bug where loading a new JSON file while a video was already present would cause the application to freeze at "Parsing JSON (100%)".
- The root cause was an incomplete state reset. The fix involves calling `resetVisualization()` at the beginning of `finalizeSetup()`, which ensures the playback timeline and animation loops are reset to a clean slate before redrawing with new data.
- This change allows users to seamlessly load and compare different JSON logs against the same video without unloading the video or freezing the application.
2. **Decoupled and Robust Speed Graph:**
- The speed graph is no longer dependent on a video file to render. It will now draw correctly as long as valid JSON data is available.
- The graph's X-axis is now consistently scaled based on the JSON data's internal duration (`finalDuration = jsonDuration`). This makes the graph's behavior predictable and ensures all data within the JSON file is always visible.
- Corrected the data source for plotting. The graph now uses the `frame.timestamp` property, which is the reliable relative time from the start of the log. This fixes a bug where the graph would appear to start late (e.g., at 220s) because it was incorrectly using `timestampMs`, a property modified by the video synchronization offset.
3. **Object URL Lifecycle Management (Memory Leak Fix):**
- Implemented proper lifecycle management for video object URLs created with `URL.createObjectURL()`.
- Before creating a new video URL, the application now checks for and revokes any existing `appState.videoObjectUrl` to prevent memory leaks from accumulating unused blob URLs.
4. **Verified Synchronization Failsafe:**
- Confirmed that the failsafe logic in `calculateAndSetOffset` is working as intended. If the automatically calculated offset between a video and JSON file exceeds a 30-second threshold, it correctly defaults to `0`, preventing extreme and incorrect synchronization when mismatched files are loaded.
