docs(geom-tessellate): add diagram generator tool

packages/geom-tessellate/package.json

@@ -33,7 +33,8 @@
 		"doc:readme": "bun ../../tools/src/module-stats.ts && bun ../../tools/src/readme.ts",
 		"pub": "yarn npm publish --access public",
 		"test": "bun test",
-		"tool:tangle": "../../node_modules/.bin/tangle src/**/*.ts"
+		"tool:tangle": "../../node_modules/.bin/tangle src/**/*.ts",
+		"tool:viz": "bun tools/visualize.ts"
 	},
 	"dependencies": {
 		"@thi.ng/api": "^8.11.2",

packages/geom-tessellate/tools/visualize.ts

@@ -0,0 +1,51 @@
+import { writeText } from "@thi.ng/file-io";
+import {
+	asSvg,
+	edgePointsFromTessellation,
+	groupFromTessellation,
+	line,
+	star,
+	starWithCentroid,
+	svgDoc,
+	tessellate,
+} from "@thi.ng/geom";
+import { kebab } from "@thi.ng/strings";
+import { map, mapcat, mapcatIndexed, pairs } from "@thi.ng/transducers";
+import {
+	Tessellator,
+	earCut,
+	edgeSplit,
+	inset,
+	quadFan,
+	rimTris,
+	triFan,
+	triFanBoundary,
+	triFanSplit,
+} from "../src/index";
+
+const visualize = (tess: Tessellator) =>
+	asSvg(
+		svgDoc(
+			{ __margin: 30 },
+			...[3, 4, 6, 8].map((n, i) =>
+				groupFromTessellation(
+					tessellate(starWithCentroid([i * 210, 0], 100, n, [1]), [
+						tess,
+					])
+				)
+			)
+		)
+	);
+
+for (let [id, tess] of pairs({
+	earCut,
+	edgeSplit,
+	inset: inset(),
+	rimTris,
+	triFan,
+	triFanBoundary,
+	triFanSplit,
+	quadFan,
+})) {
+	writeText(`export/${kebab(id)}.svg`, visualize(tess));
+}