fix(geom): update various transform op impls for ComplexPolygon

- minor other internal refactoring

packages/geom/src/rotate.ts

@@ -85,7 +85,8 @@ export const rotate = <RotateFn>defmulti<any, number, IShape2>(
 		complexpoly: ($: ComplexPolygon, theta) =>
 			new ComplexPolygon(
 				rotate($.boundary, theta),
-				$.children.map((child) => rotate(child, theta))
+				$.children.map((child) => rotate(child, theta)),
+				__copyAttribs($)
 			),
 
 		cubic: tx(Cubic),

packages/geom/src/scale.ts

@@ -2,13 +2,7 @@ import { isNumber } from "@thi.ng/checks/is-number";
 import type { MultiFn2 } from "@thi.ng/defmulti";
 import { defmulti } from "@thi.ng/defmulti/defmulti";
 import { unsupported } from "@thi.ng/errors/unsupported";
-import type {
-	IHiccupShape2,
-	IShape,
-	IShape2,
-	IShape3,
-	PathSegment2,
-} from "@thi.ng/geom-api";
+import type { IShape, IShape2, IShape3, PathSegment2 } from "@thi.ng/geom-api";
 import type { ReadonlyVec } from "@thi.ng/vectors";
 import { mul2, mul3 } from "@thi.ng/vectors/mul";
 import { mulN2, mulN3 } from "@thi.ng/vectors/muln";
@@ -121,8 +115,9 @@ export const scale = <ScaleFn>defmulti<any, number | ReadonlyVec, IShape>(
 
 		complexpoly: ($: ComplexPolygon, delta) =>
 			new ComplexPolygon(
-				<Polygon>scale($.boundary, delta),
-				$.children.map((child) => <Polygon>scale(child, delta))
+				scale($.boundary, delta),
+				$.children.map((child) => scale(child, delta)),
+				__copyAttribs($)
 			),
 
 		cubic: tx(Cubic),
@@ -136,15 +131,14 @@ export const scale = <ScaleFn>defmulti<any, number | ReadonlyVec, IShape>(
 			);
 		},
 
-		group: ($: Group, delta) =>
-			$.copyTransformed((x) => <IHiccupShape2>scale(x, delta)),
+		group: ($: Group, delta) => $.copyTransformed((x) => scale(x, delta)),
 
 		line: tx(Line),
 
 		path: ($: Path, delta) => {
 			delta = __asVec(delta);
 			const $scaleSegments = __segmentTransformer<PathSegment2>(
-				(geo) => <IShape2>scale(geo, delta),
+				(geo) => scale(geo, delta),
 				(p) => mul2([], p, <ReadonlyVec>delta)
 			);
 			return new Path(

packages/geom/src/transform-vertices.ts

@@ -1,13 +1,7 @@
 import type { Fn } from "@thi.ng/api";
 import type { MultiFn2 } from "@thi.ng/defmulti";
 import { defmulti } from "@thi.ng/defmulti/defmulti";
-import type {
-	IHiccupShape2,
-	IShape,
-	IShape2,
-	IShape3,
-	PathSegment2,
-} from "@thi.ng/geom-api";
+import type { IShape, IShape2, IShape3, PathSegment2 } from "@thi.ng/geom-api";
 import type { ReadonlyMat } from "@thi.ng/matrices";
 import type { ReadonlyVec } from "@thi.ng/vectors";
 import type { Arc } from "./api/arc.js";
@@ -110,26 +104,23 @@ export const transformVertices = <TransformVerticesFn>(
 
 			complexpoly: ($: ComplexPolygon, fn) =>
 				new ComplexPolygon(
-					<Polygon>transformVertices($.boundary, fn),
-					$.children.map(
-						(child) => <Polygon>transformVertices(child, fn)
-					)
+					transformVertices($.boundary, fn),
+					$.children.map((child) => transformVertices(child, fn)),
+					__copyAttribs($)
 				),
 
 			cubic: tx(Cubic),
 
 			group: ($: Group, fn) =>
-				$.copyTransformed(
-					(x) => <IHiccupShape2>transformVertices(x, fn)
-				),
+				$.copyTransformed((x) => transformVertices(x, fn)),
 
 			line: tx(Line),
 
 			path: ($: Path, fn) => {
 				const $transformSegments = __segmentTransformer<PathSegment2>(
 					(geo) => {
 						__ensureNoArc(geo);
-						return <IShape2>transformVertices(geo, fn);
+						return transformVertices(geo, fn);
 					},
 					fn
 				);

packages/geom/src/transform.ts

@@ -1,12 +1,6 @@
 import type { MultiFn2 } from "@thi.ng/defmulti";
 import { defmulti } from "@thi.ng/defmulti/defmulti";
-import type {
-	IHiccupShape2,
-	IShape,
-	IShape2,
-	IShape3,
-	PathSegment2,
-} from "@thi.ng/geom-api";
+import type { IShape, IShape2, IShape3, PathSegment2 } from "@thi.ng/geom-api";
 import type { ReadonlyMat } from "@thi.ng/matrices";
 import { mulV } from "@thi.ng/matrices/mulv";
 import type { Arc } from "./api/arc.js";
@@ -110,16 +104,16 @@ export const transform = <TransformFn>defmulti<any, ReadonlyMat, IShape>(
 
 		complexpoly: ($: ComplexPolygon, mat) =>
 			new ComplexPolygon(
-				<Polygon>transform($.boundary, mat),
-				$.children.map((child) => <Polygon>transform(child, mat))
+				transform($.boundary, mat),
+				$.children.map((child) => transform(child, mat)),
+				__copyAttribs($)
 			),
 
 		cubic: tx(Cubic),
 
 		cubic3: tx(Cubic3),
 
-		group: ($: Group, mat) =>
-			$.copyTransformed((x) => <IHiccupShape2>transform(x, mat)),
+		group: ($: Group, mat) => $.copyTransformed((x) => transform(x, mat)),
 
 		line: tx(Line),
 

packages/geom/src/translate.ts

@@ -1,11 +1,6 @@
 import type { MultiFn2 } from "@thi.ng/defmulti";
 import { defmulti } from "@thi.ng/defmulti/defmulti";
-import type {
-	IHiccupShape2,
-	IShape,
-	IShape2,
-	PathSegment2,
-} from "@thi.ng/geom-api";
+import type { IShape, PathSegment2 } from "@thi.ng/geom-api";
 import type { ReadonlyVec } from "@thi.ng/vectors";
 import { add2, add3 } from "@thi.ng/vectors/add";
 import { set2, set3 } from "@thi.ng/vectors/set";
@@ -97,8 +92,9 @@ export const translate = <TranslateFn>defmulti<any, ReadonlyVec, IShape>(
 
 		complexpoly: ($: ComplexPolygon, delta) =>
 			new ComplexPolygon(
-				<Polygon>translate($.boundary, delta),
-				$.children.map((child) => <Polygon>translate(child, delta))
+				translate($.boundary, delta),
+				$.children.map((child) => translate(child, delta)),
+				__copyAttribs($)
 			),
 
 		cubic: tx(Cubic),
@@ -111,13 +107,13 @@ export const translate = <TranslateFn>defmulti<any, ReadonlyVec, IShape>(
 			),
 
 		group: ($: Group, delta) =>
-			$.copyTransformed((x) => <IHiccupShape2>translate(x, delta)),
+			$.copyTransformed((x) => translate(x, delta)),
 
 		line: tx(Line),
 
 		path: ($: Path, delta: ReadonlyVec) => {
 			const $translateSegments = __segmentTransformer<PathSegment2>(
-				(geo) => <IShape2>translate(geo, delta),
+				(geo) => translate(geo, delta),
 				(p) => add2([], p, delta)
 			);
 			return new Path(