mapbox / mapbox/mapbox-maps-flutter
Unable to fix 3d model scaling when map is zoomed
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- Dominant language
- Dart
- Stars
- 380
- Forks
- 204
- PR merge metrics
- No merged PRs in 30d
Description
I am using below code to add a 3d model and used to scale mode as VIEWPORT, still it is scaling the model as per the current zoom level. I want the model to be of the same size on the screen irrespective of the zoom level. I am using mapbox_maps_flutter v2.6.2.
await mapboxMap?.style.addSource(GeoJsonSource(id: "sourceId", data: json.encode(modelPoint)));
double scale = 10;
var modelLayer = ModelLayer(id: "modelLayerId", sourceId: "sourceId");
modelLayer.modelId = modelAssetPath;
modelLayer.modelScale = [scale, scale, scale];
modelLayer.modelScaleMode = ModelScaleMode.VIEWPORT;
modelLayer.modelRotation = [0, 0, 180];
modelLayer.modelType = ModelType.LOCATION_INDICATOR;
await mapboxMap?.style.addLayer(modelLayer);
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Research direction
Reproduce the behavior from the mapboxMap.style.addLayer call using ModelLayer, modelScale, and ModelScaleMode.VIEWPORT in mapbox_maps_flutter v2.6.2. Start by checking how viewport scaling is handled for ModelLayer and verify whether the model remains the same screen size as the map zoom changes; document the result or identify the relevant SDK limitation.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- dart, flutter
- Domain
- computer-graphics, mobile-dev
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100