feat(geom): add asPath(), update pathFromCubics() to accept opt attribs

thi-ng · Jul 12, 2019 · 980af9f · 980af9f
1 parent 5ca4166
commit 980af9f
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Showing 3 changed files with 9 additions and 2 deletions.
diff --git a/packages/geom/src/ctors/path.ts b/packages/geom/src/ctors/path.ts
@@ -25,8 +25,8 @@ import { arcFrom2Points } from "./arc";
 export const path = (segments: PathSegment[], attribs?: Attribs) =>
     new Path(segments, attribs);
 
-export const pathFromCubics = (cubics: Cubic[]) => {
-    const path = new Path([], cubics[0].attribs);
+export const pathFromCubics = (cubics: Cubic[], attribs?: Attribs) => {
+    const path = new Path([], attribs || cubics[0].attribs);
     path.segments.push({ type: SegmentType.MOVE, point: cubics[0].points[0] });
     for (let c of cubics) {
         path.segments.push({ type: SegmentType.CUBIC, geo: c });

diff --git a/packages/geom/src/index.ts b/packages/geom/src/index.ts
@@ -21,6 +21,7 @@ export * from "./ctors/triangle";
 export * from "./ops/arc-length";
 export * from "./ops/area";
 export * from "./ops/as-cubic";
+export * from "./ops/as-path";
 export * from "./ops/as-polygon";
 export * from "./ops/as-polyline";
 export * from "./ops/as-svg";

diff --git a/packages/geom/src/ops/as-path.ts b/packages/geom/src/ops/as-path.ts
@@ -0,0 +1,6 @@
+import { Attribs, IShape } from "@thi.ng/geom-api";
+import { pathFromCubics } from "../ctors/path";
+import { asCubic } from "./as-cubic";
+
+export const asPath = (src: IShape, attribs?: Attribs) =>
+    pathFromCubics(asCubic(src), attribs);