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Use elevation property to clip overlapping bounding boxes #1741

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Nov 21, 2024
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Use elevation property to clip overlapping bounding boxes #1741

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37 changes: 37 additions & 0 deletions src/plugins/StoreyViewsPlugin/StoreyViewsPlugin.js
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Original file line number Diff line number Diff line change
Expand Up @@ -308,6 +308,43 @@ class StoreyViewsPlugin extends Plugin {
this.modelStoreys[modelId][storeyId] = storey;
}
}
this._clipBoundingBoxes();
}

_clipBoundingBoxes() {
const storeysList = this.storeysList;
const metaScene = this.viewer.metaScene;
const camera = this.viewer.camera;
const worldUp = camera.worldUp;
const xUp = worldUp[0] > worldUp[1] && worldUp[0] > worldUp[2];
const yUp = !xUp && worldUp[1] > worldUp[0] && worldUp[1] > worldUp[2];
const zUp = !xUp && !yUp && worldUp[2] > worldUp[0] && worldUp[2] > worldUp[1];

let bbIndex;

if(xUp) bbIndex = 0;
else if(yUp) bbIndex = 1;
else bbIndex = 2;

for (let i = 0, len = storeysList.length; i < len; i++) {

const storeyMetaObjectCur = metaScene.metaObjects[storeysList[i].storeyId];
const elevationCur = storeyMetaObjectCur.attributes.elevation;

if(isNaN(elevationCur)) return;

const bb = storeysList[i].storeyAABB;
bb[bbIndex] = Math.max(bb[1], parseFloat(elevationCur) / 1000);

if (i > 0) {
const storeyMetaObjectNext = metaScene.metaObjects[storeysList[i - 1].storeyId];
const elevationNext = storeyMetaObjectNext.attributes.elevation;
bb[4] = Math.min(bb[bbIndex + 3], parseFloat(elevationNext) / 1000);
}

this.storeys[storeysList[i].storeyId].storeyAABB = bb;
}

}

_deregisterModelStoreys(modelId) {
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