vue-cesium-jyt/es/components/post-processes/post-process-stage-scan/use-circle-scan.mjs

Vue 3.x components for CesiumJS.

import shaderSource from '../../../shared/materials/shaders/CircleScan.mjs';

function useCircle($services) {
  const webgl = (options) => {
    const { viewer } = $services;
    const cartographicCenter = Cesium.Cartographic.fromCartesian(options.position, viewer.scene.globe.ellipsoid);
    const _Cartesian3Center = Cesium.Cartographic.toCartesian(cartographicCenter, viewer.scene.globe.ellipsoid);
    const _Cartesian4Center = new Cesium.Cartesian4(_Cartesian3Center.x, _Cartesian3Center.y, _Cartesian3Center.z, 1);
    const _CartographicCenter1 = new Cesium.Cartographic(cartographicCenter.longitude, cartographicCenter.latitude, cartographicCenter.height + 500);
    const _Cartesian3Center1 = Cesium.Cartographic.toCartesian(_CartographicCenter1, viewer.scene.globe.ellipsoid);
    const _Cartesian4Center1 = new Cesium.Cartesian4(_Cartesian3Center1.x, _Cartesian3Center1.y, _Cartesian3Center1.z, 1);
    const _time = new Date().getTime();
    const _scratchCartesian4Center = new Cesium.Cartesian4();
    const _scratchCartesian4Center1 = new Cesium.Cartesian4();
    const _scratchCartesian3Normal = new Cesium.Cartesian3();
    const uniforms = {
      u_scanCenterEC: function() {
        return Cesium.Matrix4.multiplyByVector(viewer.camera.viewMatrix, _Cartesian4Center, _scratchCartesian4Center);
      },
      u_scanPlaneNormalEC: function() {
        const temp = Cesium.Matrix4.multiplyByVector(viewer.camera.viewMatrix, _Cartesian4Center, _scratchCartesian4Center);
        const temp1 = Cesium.Matrix4.multiplyByVector(viewer.camera.viewMatrix, _Cartesian4Center1, _scratchCartesian4Center1);
        _scratchCartesian3Normal.x = temp1.x - temp.x;
        _scratchCartesian3Normal.y = temp1.y - temp.y;
        _scratchCartesian3Normal.z = temp1.z - temp.z;
        Cesium.Cartesian3.normalize(_scratchCartesian3Normal, _scratchCartesian3Normal);
        return _scratchCartesian3Normal;
      },
      u_radius: function() {
        return options.radius * ((new Date().getTime() - _time) % options.interval) / options.interval;
      },
      u_scanColor: options.color
    };
    return {
      shaderSource,
      uniforms
    };
  };
  return {
    webgl
  };
}

export { useCircle as default };
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