facetIndex0 Method
Given a valid facet index, return the index at which its face loop starts in the index arrays.
- A "face loop" is a contiguous block of indices into the parallel polyface index arrays.
- Each of these indices represents an edge of a facet, thus it is sometimes called an "edgeIndex".
- Together with facetIndex1, this method can be used to iterate the face loop of the facet
with index
iFacetas follows:
for (let iEdge = this.facetIndex0(iFacet); iEdge < this.facetIndex1(iFacet); iEdge++) {
const iPoint = this.data.pointIndex[iEdge];
const p = this.data.point[iPoint];
// ... process the edge of this facet starting at point p
}
facetIndex0(facetIndex: number): number
| Parameter | Type | Description |
|---|---|---|
| facetIndex | number |
Returns - number
Defined in
- polyface/Polyface.ts Line 620
Last Updated: 27 June, 2025
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