@visactor/vrender-core/es/common/segment/index.js

```typescript import { xxx } from '@visactor/vrender-core'; ```

import { genLinearSegments } from "./linear";

import { genBasisSegments } from "./basis";

import { genMonotoneXSegments, genMonotoneYSegments } from "./monotone";

import { genStepClosedSegments, genStepSegments } from "./step";

import { genLinearClosedSegments } from "./linear-closed";

import { genCatmullRomSegments } from "./catmull-rom";

import { genCatmullRomClosedSegments } from "./catmull-rom-close";

export * from "./linear";

export * from "./linear-closed";

export * from "./basis";

export * from "./monotone";

export * from "./step";

export * from "./curve/curve-context";

export * from "./curve/cubic-bezier";

export function calcLineCache(points, curveType, params) {
    var _a, _b;
    switch (curveType) {
      case "linear":
      default:
        return genLinearSegments(points, params);

      case "basis":
        return genBasisSegments(points, params);

      case "monotoneX":
        return genMonotoneXSegments(points, params);

      case "monotoneY":
        return genMonotoneYSegments(points, params);

      case "step":
        return genStepSegments(points, .5, params);

      case "stepClosed":
        return genStepClosedSegments(points, .5, params);

      case "stepBefore":
        return genStepSegments(points, 0, params);

      case "stepAfter":
        return genStepSegments(points, 1, params);

      case "catmullRom":
        return genCatmullRomSegments(points, null !== (_a = null == params ? void 0 : params.curveTension) && void 0 !== _a ? _a : .5, params);

      case "catmullRomClosed":
        return genCatmullRomClosedSegments(points, null !== (_b = null == params ? void 0 : params.curveTension) && void 0 !== _b ? _b : .5, params);

      case "linearClosed":
        return genLinearClosedSegments(points, params);
    }
}
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