renderWay method

@override void renderWay(RenderInfo<Renderinstruction> renderInfo, RenderContext renderContext, WayProperties wayProperties)

Renders a symbol for a way.

The symbol is drawn at the center of the way's bounding box.

Implementation

@override
void renderWay(RenderInfo renderInfo, RenderContext renderContext, WayProperties wayProperties) {
  if (renderContext is! UiRenderContext) throw Exception("renderContext is not UiRenderContext ${renderContext.runtimeType}");
  if (symbolImage == null) return;
  Mappoint point = wayProperties.getCenterAbsolute(renderContext.projection);
  MappointRelative relative = point.offset(renderContext.reference);
  MapRectangle boundary = renderinstruction.getBoundary(renderInfo);
  UiMatrix? matrix;
  if (renderinstruction.theta != 0 || renderContext.rotationRadian != 0) {
    matrix = UiMatrix();
    matrix.rotate(renderinstruction.theta - renderContext.rotationRadian, pivotX: boundary.left, pivotY: boundary.top);
  }

  //if (bitmap.debugDisposed())
  // print(
  //     "drawing ${bitmap} at ${this.xy.x - origin.x + boundary!.left} / ${this.xy.y - origin.y + boundary!.top} $theta"); //bitmap.debugGetOpenHandleStackTraces();
  //print(StackTrace.current);
  renderContext.canvas.drawPicture(
    symbolImage: symbolImage!,
    matrix: matrix,
    left: relative.dx + boundary.left,
    top: relative.dy + boundary.top,
    paint: fill,
  );
}