mirror of
https://github.com/xibyte/jsketcher
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34 lines
No EOL
1 KiB
TypeScript
34 lines
No EOL
1 KiB
TypeScript
import {Shell} from "brep/topo/shell";
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import {Vertex} from "brep/topo/vertex";
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import {EdgeGraph} from "brep/operations/boolean";
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import {HalfEdge} from "brep/topo/edge";
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import {Plane} from "geom/impl/plane";
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import {DEFLECTION} from "../../../../web/app/cad/craft/e0/common";
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import {EngineAPI_V1, GenericResponse} from "engine/api";
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export function defeatureByVertex(shell: Shell, vertex: Vertex, engine: EngineAPI_V1): GenericResponse {
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const graph = new EdgeGraph();
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for (let e of shell.edges) {
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graph.add(e.halfEdge1);
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graph.add(e.halfEdge2);
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}
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const edges: HalfEdge[] = graph.vertexToEdge.get(vertex);
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const [p1, p2, p3] = edges.map(e => e.vertexB.point);
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let plane = Plane.by3Points(p1, p2, p3);
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if (plane.normal.multiply(plane.w).minus(vertex.point).dot(plane.normal) > 1) {
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plane = plane.invert();
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}
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return engine.splitByPlane({
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deflection: DEFLECTION,
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shape: shell.data.externals.ptr,
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plane: {
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point: plane.normal.multiply(plane.w).data(),
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dir: plane.normal.data(),
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}
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})
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} |