createSelectionStore#size¶
Summary¶
createSelectionStore#size returns the number of unique selected entries.
Uniqueness is determined by (objectId, elementIndex), so repeated adds of the same element do not increase this value.
Syntax¶
Parameters¶
This API does not take parameters.
Returns¶
number - Current number of stored selection entries.
Example¶
const canvas = document.querySelector("canvas");
const wgpu = await WasmGPU.create(canvas);
const scene = wgpu.createScene();
const camera = wgpu.createCamera.perspective({ fov: 60, aspect: canvas.clientWidth / canvas.clientHeight, near: 0.1, far: 1000 });
const selection = wgpu.createSelectionStore();
const region = await wgpu.pickRect(scene, camera, 30, 30, 200, 160, { maxHits: 2000 });
selection.add(region.hits);
console.log(selection.size);