diff options
Diffstat (limited to 'apps/web/src/lib/graphics/definitions/polygon.ts')
| -rw-r--r-- | apps/web/src/lib/graphics/definitions/polygon.ts | 422 |
1 files changed, 211 insertions, 211 deletions
diff --git a/apps/web/src/lib/graphics/definitions/polygon.ts b/apps/web/src/lib/graphics/definitions/polygon.ts index 780c974c..deecb6ff 100644 --- a/apps/web/src/lib/graphics/definitions/polygon.ts +++ b/apps/web/src/lib/graphics/definitions/polygon.ts @@ -1,211 +1,211 @@ -import type { ParamDefinition } from "@/lib/params"; -import { applyAlignedStroke } from "../stroke"; -import { STROKE_ALIGN_PARAM, type GraphicStrokeAlign } from "./shared"; -import type { GraphicDefinition } from "../types"; - -interface Point { - x: number; - y: number; -} - -interface PolygonParams { - fill: string; - stroke: string; - strokeWidth: number; - strokeAlign: GraphicStrokeAlign; - sides: number; - cornerRadius: number; -} - -const POLYGON_PARAMS: ParamDefinition<keyof PolygonParams & string>[] = [ - { - key: "fill", - label: "Fill", - type: "color", - default: "#ffffff", - }, - { - key: "stroke", - label: "Color", - type: "color", - default: "#000000", - group: "stroke", - }, - { - key: "strokeWidth", - label: "Width", - type: "number", - default: 0, - min: 0, - max: 64, - step: 1, - shortLabel: "W", - group: "stroke", - }, - STROKE_ALIGN_PARAM, - { - key: "sides", - label: "Sides", - type: "number", - default: 5, - min: 3, - max: 12, - step: 1, - shortLabel: "S", - }, - { - key: "cornerRadius", - label: "Corner radius", - type: "number", - default: 0, - min: 0, - max: 50, - step: 1, - shortLabel: "R", - }, -]; - -function buildPolygonVertices({ - centerX, - centerY, - radius, - sides, -}: { - centerX: number; - centerY: number; - radius: number; - sides: number; -}): Point[] { - return Array.from({ length: sides }, (_, index) => { - const angle = -Math.PI / 2 + (index * Math.PI * 2) / sides; - return { - x: centerX + Math.cos(angle) * radius, - y: centerY + Math.sin(angle) * radius, - }; - }); -} - -function distance({ a, b }: { a: Point; b: Point }): number { - return Math.hypot(a.x - b.x, a.y - b.y); -} - -function normalize(point: Point): Point { - const length = Math.hypot(point.x, point.y) || 1; - return { - x: point.x / length, - y: point.y / length, - }; -} - -function traceRoundedPolygonPath({ - path, - vertices, - radius, -}: { - path: Path2D; - vertices: Point[]; - radius: number; -}): void { - if (vertices.length < 3) { - return; - } - - if (radius <= 0) { - path.moveTo(vertices[0].x, vertices[0].y); - for (let index = 1; index < vertices.length; index++) { - path.lineTo(vertices[index].x, vertices[index].y); - } - path.closePath(); - return; - } - - for (let index = 0; index < vertices.length; index++) { - const previous = vertices[(index - 1 + vertices.length) % vertices.length]; - const current = vertices[index]; - const next = vertices[(index + 1) % vertices.length]; - const toPrevious = normalize({ - x: previous.x - current.x, - y: previous.y - current.y, - }); - const toNext = normalize({ - x: next.x - current.x, - y: next.y - current.y, - }); - const angle = Math.acos( - Math.max(-1, Math.min(1, toPrevious.x * toNext.x + toPrevious.y * toNext.y)), - ); - const maxOffset = - Math.min(distance({ a: previous, b: current }), distance({ a: current, b: next })) / 2; - const tangentOffset = Math.min(radius / Math.tan(angle / 2), maxOffset); - const start = { - x: current.x + toPrevious.x * tangentOffset, - y: current.y + toPrevious.y * tangentOffset, - }; - const end = { - x: current.x + toNext.x * tangentOffset, - y: current.y + toNext.y * tangentOffset, - }; - - if (index === 0) { - path.moveTo(start.x, start.y); - } else { - path.lineTo(start.x, start.y); - } - - path.arcTo( - current.x, - current.y, - end.x, - end.y, - Math.min(radius, maxOffset), - ); - } - - path.closePath(); -} - -export const polygonGraphicDefinition: GraphicDefinition = { - id: "polygon", - name: "Polygon", - keywords: ["polygon", "triangle", "pentagon", "hexagon", "diamond"], - params: POLYGON_PARAMS, - render({ ctx, params, width, height }) { - const fill = String(params.fill ?? "#ffffff"); - const stroke = String(params.stroke ?? "#000000"); - const strokeWidth = Math.max(0, Number(params.strokeWidth ?? 0)); - const strokeAlign = (params.strokeAlign ?? "center") as GraphicStrokeAlign; - const sides = Math.max(3, Math.min(12, Math.round(Number(params.sides ?? 5)))); - const inset = strokeAlign === "center" ? strokeWidth / 2 : 0; - const radius = Math.max(1, Math.min(width, height) / 2 - inset); - const maxCornerRadius = radius * Math.sin(Math.PI / sides); - const cornerRadiusPercent = Math.max(0, Number(params.cornerRadius ?? 0)); - const cornerRadius = - maxCornerRadius * Math.min(cornerRadiusPercent, 50) / 50; - const vertices = buildPolygonVertices({ - centerX: width / 2, - centerY: height / 2, - radius, - sides, - }); - - ctx.clearRect(0, 0, width, height); - const path = new Path2D(); - traceRoundedPolygonPath({ - path, - vertices, - radius: cornerRadius, - }); - ctx.fillStyle = fill; - ctx.fill(path); - - if (strokeWidth > 0) { - applyAlignedStroke({ - ctx, - path, - strokeWidth, - strokeAlign, - strokeColor: stroke, - }); - } - }, -}; +import type { ParamDefinition } from "@/lib/params";
+import { applyAlignedStroke } from "../stroke";
+import { STROKE_ALIGN_PARAM, type GraphicStrokeAlign } from "./shared";
+import type { GraphicDefinition } from "../types";
+
+interface Point {
+ x: number;
+ y: number;
+}
+
+interface PolygonParams {
+ fill: string;
+ stroke: string;
+ strokeWidth: number;
+ strokeAlign: GraphicStrokeAlign;
+ sides: number;
+ cornerRadius: number;
+}
+
+const POLYGON_PARAMS: ParamDefinition<keyof PolygonParams & string>[] = [
+ {
+ key: "fill",
+ label: "Fill",
+ type: "color",
+ default: "#ffffff",
+ },
+ {
+ key: "stroke",
+ label: "Color",
+ type: "color",
+ default: "#000000",
+ group: "stroke",
+ },
+ {
+ key: "strokeWidth",
+ label: "Width",
+ type: "number",
+ default: 0,
+ min: 0,
+ max: 64,
+ step: 1,
+ shortLabel: "W",
+ group: "stroke",
+ },
+ STROKE_ALIGN_PARAM,
+ {
+ key: "sides",
+ label: "Sides",
+ type: "number",
+ default: 5,
+ min: 3,
+ max: 12,
+ step: 1,
+ shortLabel: "S",
+ },
+ {
+ key: "cornerRadius",
+ label: "Corner radius",
+ type: "number",
+ default: 0,
+ min: 0,
+ max: 50,
+ step: 1,
+ shortLabel: "R",
+ },
+];
+
+function buildPolygonVertices({
+ centerX,
+ centerY,
+ radius,
+ sides,
+}: {
+ centerX: number;
+ centerY: number;
+ radius: number;
+ sides: number;
+}): Point[] {
+ return Array.from({ length: sides }, (_, index) => {
+ const angle = -Math.PI / 2 + (index * Math.PI * 2) / sides;
+ return {
+ x: centerX + Math.cos(angle) * radius,
+ y: centerY + Math.sin(angle) * radius,
+ };
+ });
+}
+
+function distance({ a, b }: { a: Point; b: Point }): number {
+ return Math.hypot(a.x - b.x, a.y - b.y);
+}
+
+function normalize(point: Point): Point {
+ const length = Math.hypot(point.x, point.y) || 1;
+ return {
+ x: point.x / length,
+ y: point.y / length,
+ };
+}
+
+function traceRoundedPolygonPath({
+ path,
+ vertices,
+ radius,
+}: {
+ path: Path2D;
+ vertices: Point[];
+ radius: number;
+}): void {
+ if (vertices.length < 3) {
+ return;
+ }
+
+ if (radius <= 0) {
+ path.moveTo(vertices[0].x, vertices[0].y);
+ for (let index = 1; index < vertices.length; index++) {
+ path.lineTo(vertices[index].x, vertices[index].y);
+ }
+ path.closePath();
+ return;
+ }
+
+ for (let index = 0; index < vertices.length; index++) {
+ const previous = vertices[(index - 1 + vertices.length) % vertices.length];
+ const current = vertices[index];
+ const next = vertices[(index + 1) % vertices.length];
+ const toPrevious = normalize({
+ x: previous.x - current.x,
+ y: previous.y - current.y,
+ });
+ const toNext = normalize({
+ x: next.x - current.x,
+ y: next.y - current.y,
+ });
+ const angle = Math.acos(
+ Math.max(-1, Math.min(1, toPrevious.x * toNext.x + toPrevious.y * toNext.y)),
+ );
+ const maxOffset =
+ Math.min(distance({ a: previous, b: current }), distance({ a: current, b: next })) / 2;
+ const tangentOffset = Math.min(radius / Math.tan(angle / 2), maxOffset);
+ const start = {
+ x: current.x + toPrevious.x * tangentOffset,
+ y: current.y + toPrevious.y * tangentOffset,
+ };
+ const end = {
+ x: current.x + toNext.x * tangentOffset,
+ y: current.y + toNext.y * tangentOffset,
+ };
+
+ if (index === 0) {
+ path.moveTo(start.x, start.y);
+ } else {
+ path.lineTo(start.x, start.y);
+ }
+
+ path.arcTo(
+ current.x,
+ current.y,
+ end.x,
+ end.y,
+ Math.min(radius, maxOffset),
+ );
+ }
+
+ path.closePath();
+}
+
+export const polygonGraphicDefinition: GraphicDefinition = {
+ id: "polygon",
+ name: "Polygon",
+ keywords: ["polygon", "triangle", "pentagon", "hexagon", "diamond"],
+ params: POLYGON_PARAMS,
+ render({ ctx, params, width, height }) {
+ const fill = String(params.fill ?? "#ffffff");
+ const stroke = String(params.stroke ?? "#000000");
+ const strokeWidth = Math.max(0, Number(params.strokeWidth ?? 0));
+ const strokeAlign = (params.strokeAlign ?? "center") as GraphicStrokeAlign;
+ const sides = Math.max(3, Math.min(12, Math.round(Number(params.sides ?? 5))));
+ const inset = strokeAlign === "center" ? strokeWidth / 2 : 0;
+ const radius = Math.max(1, Math.min(width, height) / 2 - inset);
+ const maxCornerRadius = radius * Math.sin(Math.PI / sides);
+ const cornerRadiusPercent = Math.max(0, Number(params.cornerRadius ?? 0));
+ const cornerRadius =
+ maxCornerRadius * Math.min(cornerRadiusPercent, 50) / 50;
+ const vertices = buildPolygonVertices({
+ centerX: width / 2,
+ centerY: height / 2,
+ radius,
+ sides,
+ });
+
+ ctx.clearRect(0, 0, width, height);
+ const path = new Path2D();
+ traceRoundedPolygonPath({
+ path,
+ vertices,
+ radius: cornerRadius,
+ });
+ ctx.fillStyle = fill;
+ ctx.fill(path);
+
+ if (strokeWidth > 0) {
+ applyAlignedStroke({
+ ctx,
+ path,
+ strokeWidth,
+ strokeAlign,
+ strokeColor: stroke,
+ });
+ }
+ },
+};
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