refactor: reorg
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@@ -0,0 +1,245 @@
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export type CardShape = 'rectangle' | 'circle' | 'triangle' | 'hexagon';
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export interface ContourPoint {
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x: number;
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y: number;
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}
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export interface ContourBounds {
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minX: number;
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minY: number;
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maxX: number;
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maxY: number;
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}
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/**
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* 生成带圆角的矩形轮廓点
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* @param width 矩形宽度
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* @param height 矩形高度
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* @param cornerRadius 圆角半径（mm）
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* @param segmentsPerCorner 每个圆角的分段数
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*/
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export function getRoundedRectPoints(
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width: number,
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height: number,
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cornerRadius: number,
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segmentsPerCorner: number = 4
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): [number, number][] {
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const points: [number, number][] = [];
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const r = Math.min(cornerRadius, width / 2, height / 2);
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if (r <= 0) {
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// 无圆角，返回普通矩形
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points.push([0, 0]);
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points.push([width, 0]);
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points.push([width, height]);
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points.push([0, height]);
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return points;
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}
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// 左上角圆角（从顶部开始，顺时针）
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for (let i = 0; i < segmentsPerCorner; i++) {
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const angle = (Math.PI / 2) * (i / segmentsPerCorner);
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points.push([
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r + r * Math.cos(angle - Math.PI / 2),
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r + r * Math.sin(angle - Math.PI / 2)
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]);
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}
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// 右上角圆角
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for (let i = 0; i < segmentsPerCorner; i++) {
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const angle = (Math.PI / 2) * (i / segmentsPerCorner);
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points.push([
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width - r + r * Math.cos(angle),
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r + r * Math.sin(angle)
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]);
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}
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// 右下角圆角
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for (let i = 0; i < segmentsPerCorner; i++) {
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const angle = (Math.PI / 2) * (i / segmentsPerCorner) + Math.PI / 2;
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points.push([
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width - r + r * Math.cos(angle),
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height - r + r * Math.sin(angle)
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]);
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}
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// 左下角圆角
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for (let i = 0; i < segmentsPerCorner; i++) {
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const angle = (Math.PI / 2) * (i / segmentsPerCorner) + Math.PI;
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points.push([
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r + r * Math.cos(angle),
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height - r + r * Math.sin(angle)
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]);
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}
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return points;
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}
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/**
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* 根据形状生成卡片轮廓点（单位：mm，相对于卡片左下角）
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*/
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export function getCardShapePoints(
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shape: CardShape,
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width: number,
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height: number,
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cornerRadius: number = 0
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): [number, number][] {
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if (shape === 'rectangle' && cornerRadius > 0) {
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return getRoundedRectPoints(width, height, cornerRadius);
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}
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const points: [number, number][] = [];
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switch (shape) {
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case 'circle': {
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const radius = Math.min(width, height) / 2;
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const centerX = width / 2;
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const centerY = height / 2;
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for (let i = 0; i < 36; i++) {
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const angle = (i / 36) * Math.PI * 2;
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points.push([
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centerX + radius * Math.cos(angle),
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centerY + radius * Math.sin(angle)
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]);
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}
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break;
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}
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case 'triangle': {
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points.push([width / 2, 0]);
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points.push([0, height]);
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points.push([width, height]);
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break;
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}
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case 'hexagon': {
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const halfW = width / 2;
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const quarterH = height / 4;
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points.push([halfW, 0]);
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points.push([width, quarterH]);
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points.push([width, height - quarterH]);
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points.push([halfW, height]);
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points.push([0, height - quarterH]);
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points.push([0, quarterH]);
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break;
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}
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case 'rectangle':
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default: {
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points.push([0, 0]);
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points.push([width, 0]);
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points.push([width, height]);
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points.push([0, height]);
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break;
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}
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}
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return points;
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}
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/**
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* 计算多边形的中心点
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*/
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export function calculateCenter(points: [number, number][]): { x: number; y: number } {
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let sumX = 0;
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let sumY = 0;
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for (const [x, y] of points) {
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sumX += x;
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sumY += y;
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}
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return {
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x: sumX / points.length,
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y: sumY / points.length
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};
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}
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/**
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* 计算轮廓的边界框
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*/
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export function calculateBounds(points: [number, number][]): ContourBounds {
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if (points.length === 0) {
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return { minX: 0, minY: 0, maxX: 0, maxY: 0 };
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}
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let minX = Infinity;
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let minY = Infinity;
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let maxX = -Infinity;
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let maxY = -Infinity;
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for (const [x, y] of points) {
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minX = Math.min(minX, x);
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minY = Math.min(minY, y);
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maxX = Math.max(maxX, x);
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maxY = Math.max(maxY, y);
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}
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return { minX, minY, maxX, maxY };
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}
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/**
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* 根据进度计算点在路径上的位置
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*/
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export function getPointOnPath(points: [number, number][], progress: number): [number, number] {
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if (points.length === 0) return [0, 0];
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if (points.length === 1) return points[0];
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const totalSegments = points.length;
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const scaledProgress = progress * totalSegments;
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const segmentIndex = Math.floor(scaledProgress);
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const segmentProgress = scaledProgress - segmentIndex;
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const currentIndex = Math.min(segmentIndex, points.length - 1);
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const nextIndex = (currentIndex + 1) % points.length;
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const [x1, y1] = points[currentIndex];
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const [x2, y2] = points[nextIndex];
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return [
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x1 + (x2 - x1) * segmentProgress,
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y1 + (y2 - y1) * segmentProgress
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];
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}
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/**
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* 将轮廓点转换为 SVG path 命令
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* @param points 轮廓点数组
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* @param closed 是否闭合路径
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*/
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export function contourToSvgPath(points: [number, number][], closed = true): string {
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if (points.length === 0) return '';
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const [startX, startY] = points[0];
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let d = `M ${startX} ${startY}`;
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for (let i = 1; i < points.length; i++) {
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const [x, y] = points[i];
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d += ` L ${x} ${y}`;
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}
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if (closed) {
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d += ' Z';
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}
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return d;
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}
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/**
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* 平移轮廓点（添加偏移量）
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*/
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export function translateContour(
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points: [number, number][],
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offsetX: number,
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offsetY: number
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): [number, number][] {
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return points.map(([x, y]) => [x + offsetX, y + offsetY] as [number, number]);
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}
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/**
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* 翻转轮廓（用于 SVG 坐标转换，Y 轴翻转）
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* @param points 轮廓点
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* @param height 画布高度
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*/
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export function flipContourY(
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points: [number, number][],
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height: number
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): [number, number][] {
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return points.map(([x, y]) => [x, height - y] as [number, number]);
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}
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@@ -1,3 +1,5 @@
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export * from "./bezier";
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export * from "./vector";
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export * from "./plotter";
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export * from "./plotter";
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export * from "./contour";
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export * from "./layout";
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@@ -0,0 +1,95 @@
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import { contourToSvgPath } from './contour';
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/**
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* 卡片切割路径
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*/
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export interface CardPath {
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pageIndex: number;
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cardIndex: number;
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points: [number, number][];
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centerX: number;
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centerY: number;
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pathD: string;
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startPoint: [number, number];
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endPoint: [number, number];
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}
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/**
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* 生成空走路径（抬刀移动路径）
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* @param cardPaths 卡片切割路径
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* @param a4Height A4 纸高度（用于坐标转换）
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*/
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export function generateTravelPaths(
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cardPaths: CardPath[],
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a4Height: number
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): [number, number][][] {
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const travelPaths: [number, number][][] = [];
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// 起点：左上角 (0, a4Height) - 注意 SVG 坐标 Y 向下，plotter 坐标 Y 向上
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const startPoint: [number, number] = [0, a4Height];
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if (cardPaths.length === 0) {
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return travelPaths;
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}
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// 从起点到第一张卡的起点
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travelPaths.push([startPoint, cardPaths[0].startPoint]);
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// 卡片之间的移动
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for (let i = 0; i < cardPaths.length - 1; i++) {
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const currentEnd = cardPaths[i].endPoint;
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const nextStart = cardPaths[i + 1].startPoint;
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travelPaths.push([currentEnd, nextStart]);
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}
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// 从最后一张卡返回起点
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travelPaths.push([cardPaths[cardPaths.length - 1].endPoint, startPoint]);
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return travelPaths;
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}
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/**
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* 将旅行路径转换为 SVG path 命令
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*/
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export function travelPathsToSvg(travelPaths: [number, number][][]): string {
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return travelPaths.map(path => contourToSvgPath(path, false)).join(' ');
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}
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/**
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* 计算所有卡片轮廓的总边界框
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*/
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export function calculateTotalBounds(cardPaths: CardPath[]): {
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minX: number;
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minY: number;
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maxX: number;
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maxY: number;
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width: number;
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height: number;
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} {
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if (cardPaths.length === 0) {
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return { minX: 0, minY: 0, maxX: 0, maxY: 0, width: 0, height: 0 };
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}
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let minX = Infinity;
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let minY = Infinity;
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let maxX = -Infinity;
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let maxY = -Infinity;
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for (const cardPath of cardPaths) {
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for (const [x, y] of cardPath.points) {
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minX = Math.min(minX, x);
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minY = Math.min(minY, y);
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maxX = Math.max(maxX, x);
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maxY = Math.max(maxY, y);
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}
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}
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return {
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minX,
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minY,
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maxX,
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maxY,
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width: maxX - minX,
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height: maxY - minY
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};
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}
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