SimpleContourRenderer constructor

SimpleContourRenderer(CanvasElement contourCanvas, int dataAreaWidth, int dataAreaHeight, int dataAreaX, int dataAreaY, Map<CtourA, String> contourAttr)

Creates a renderer which will draw into contourCanvas. The data area size and position covered by the drawing is given by dataAreaWidth, dataAreaHeight, dataAreaX, dataAreaY. contourAttr

Implementation

SimpleContourRenderer(
    this.contourCanvas,
    this.dataAreaWidth,
    this.dataAreaHeight,
    this.dataAreaX,
    this.dataAreaY,
    Map<CtourA, String> contourAttr) {
  attr = CONTOUR_DEFAULT_ATTRIBUTES;
  if (contourAttr != null) {
    attr.addAll(contourAttr);
  }
  contourCanvas.style
    ..position = "absolute"
    ..backgroundColor = "transparent";
  c2d = contourCanvas.getContext("2d");
}