Method updateTransform

src/common/util/MapExtend.js:109–144

(units, originX, originY, centerX, centerY, width, height)

    }
    
    updateTransform(units, originX, originY, centerX, centerY, width, height) {
      this.transform.units = units;
      const mercatorZfromAltitude = this.mercatorZfromAltitude;
      product.MercatorCoordinate.fromLngLat = function (lngLatLike, altitude) {
        altitude = altitude || 0;
        const lngLat = product.LngLat.convert(lngLatLike);
        return new product.MercatorCoordinate(
          (lngLat.lng - originX) / width,
          (originY - lngLat.lat) / height,
          mercatorZfromAltitude(altitude, lngLat.lat)
        );
      };
      product.MercatorCoordinate.prototype.toLngLat = function () {
        return new product.LngLat(this.x * width + originX, originY - this.y * height);
      };
      this.customConvertPoint = window.URL.createObjectURL(
        new Blob(
          [
            'customConvertPoint = {projectX:function(x){return (x - ' +
              centerX +
              ') / ' +
              width +
              ' + 0.5},projectY:function(y){y = 0.5 - ((y - ' +
              centerY +
              ') / ' +
              height +
              ');return y < 0 ? 0 : y > 1 ? 1 : y;},toY:function(y){return (0.5-y)*' +
              height +
              '+' +
              centerY +
              ';}}'
          ],
          { type: 'text/javascript' }
        )
      );
    }
    
    getPaintProperty(layerId, name) {
      const overlayLayer = this.overlayLayersManager[layerId];