Function integratePrincipalStreamline

integratePrincipalStreamline(
    frameAt: FrameEval,
    start: UV,
    which: 1 | 2,
    dirSign: -1 | 1,
    opts: IntegrateOptions,
): StreamlineResult
Integrate streamline in UV using uvDir1 or uvDir2. Uses frame stabilization per-step to avoid swapping/flipping along the curve.
Parameters
- frameAt: FrameEval
- start: UV
- which: 1 | 2
- dirSign: -1 | 1
- opts: IntegrateOptions
Returns StreamlineResult
- Defined in renderer/src/math/principalStreamlines.ts:136