bigDataApp/libs/canvas/shapeRender.js

// 矩形渲染
export const rectangleRender = ({
  ctx,
  width,
  height,
  X,
  Y,
  color,
  lineWidth
}) => {
  ctx.beginPath();
  //   //设置线条颜色，必须放在绘制之前
  ctx.strokeStyle = color;
  ctx.lineWidth = lineWidth || 2;
  ctx.strokeRect(X, Y, width, height);

  return ctx;
};

// 图形渲染
export const shapeRender = ({
  ctx,
  width,
  height,
  shapeType,
  X,
  Y,
  color,
  roundY,
  roundX,
  roundR,
  lineWidth
}) => {
  const typeFn = [
    () => rectangleRender({ ctx, width, height, X, Y, color, lineWidth })
  ];
  typeFn[shapeType]();
};