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{ IGroup } from '../../../dependents';\nimport { Point, ShapeInfo, ShapeMarkerCfg } from '../../../interface';\n\nimport { getArcPath } from '../../../util/graphics';\nimport { registerShape } from '../base';\nimport { getStyle } from '../util/get-style';\nimport { getCPath, getQPath } from './util';\n\nfunction getArcShapePath(from: Point, to: Point, center: Point) {\n  const sub = getQPath(to, center);\n  const path = [['M', from.x, from.y]];\n  path.push(sub);\n  return path;\n}\n\nfunction getArcShapeWeightPath(points: Point[], center: Point) {\n  const arc1 = getQPath(points[1], center);\n  const arc2 = getQPath(points[3], center);\n  const path = [['M', points[0].x, points[0].y]];\n  path.push(arc2);\n  path.push(['L', points[3].x, points[3].y]);\n  path.push(['L', points[2].x, points[2].y]);\n  path.push(arc1);\n  path.push(['L', points[1].x, points[1].y]);\n  path.push(['L', points[0].x, points[0].y]);\n  path.push(['Z']);\n  return path;\n}\n\n// 弧线包括笛卡尔坐标系下的半圆弧线、极坐标系下以圆心为控制点的二阶曲线、笛卡尔坐标系下带权重的三阶曲线、极坐标系下带权重的以圆心为控制点的二阶曲线\nregisterShape('edge', 'arc', {\n  draw(cfg: ShapeInfo, container: IGroup) {\n    const style = getStyle(cfg, true, false, 'lineWidth');\n\n    let points = cfg.points as Point[];\n    const type = points.length > 2 ? 'weight' : 'normal';\n    let path;\n    if (cfg.isInCircle) {\n      const center = { x: 0, y: 1 };\n      if (type === 'normal') {\n        path = getArcShapePath(points[0], points[1], center);\n      } else {\n        style.fill = style.stroke;\n        path = getArcShapeWeightPath(points, center);\n      }\n      path = this.parsePath(path);\n\n      return container.addShape('path', {\n        attrs: {\n          ...style,\n          path,\n        },\n      });\n    } else {\n      if (type === 'normal') {\n        points = this.parsePoints(points);\n        path = getArcPath(\n          (points[1].x + points[0].x) / 2,\n          points[0].y,\n          Math.abs(points[1].x - points[0].x) / 2,\n          Math.PI,\n          Math.PI * 2\n        );\n        return container.addShape('path', {\n          attrs: {\n            ...style,\n            path,\n          },\n        });\n      } else {\n        const c1 = getCPath(points[1], points[3]);\n        const c2 = getCPath(points[2], points[0]);\n\n        path = [\n          ['M', points[0].x, points[0].y],\n          ['L', points[1].x, points[1].y],\n          c1,\n          ['L', points[3].x, points[3].y],\n          ['L', points[2].x, points[2].y],\n          c2,\n          ['Z'],\n        ];\n        path = this.parsePath(path);\n        style.fill = style.stroke;\n\n        return container.addShape('path', {\n          attrs: {\n            ...style,\n            path,\n          },\n        });\n      }\n    }\n  },\n  getMarker(markerCfg: ShapeMarkerCfg) {\n    return {\n      symbol: 'circle',\n      style: {\n        r: 4.5,\n        fill: markerCfg.color,\n      },\n    };\n  },\n});\n"]}