feat(动画): 添加贝塞尔曲线动画路径组件

新增了一个基于SVG的贝塞尔曲线动画路径组件，支持逐步展示连接点之间的路径，并带有动画效果和箭头指示方向。同时，更新了路由配置以支持新页面，并添加了less依赖以支持样式预处理。

@@ -35,6 +35,7 @@
     "@vueuse/core": "^13.0.0",
     "autoprefixer": "^10.4.19",
     "axios": "^1.8.4",
+    "less": "^4.2.2",
     "postcss": "^8.4.35",
     "qs": "^6.14.0",
     "tailwindcss": "^3.4.1",

 /*
  * @Date: 2025-03-20 20:36:36
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-03-25 15:17:18
+ * @LastEditTime: 2025-03-28 09:39:27
  * @FilePath: /mlaj/src/router/routes.js
  * @Description: 路由地址映射配置
  */
@@ -175,6 +175,12 @@ export const routes = [
     meta: { title: 'test' },
   },
   {
+    path: '/animation',
+    name: 'animation',
+    component: () => import('../views/animation.vue'),
+    meta: { title: 'animation' },
+  },
+  {
     path: '/upload_video',
     name: 'upload_video',
     component: () => import('../views/upload_video.vue'),

+<!--
+ * @Date: 2025-03-28 09:23:04
+ * @LastEditors: hookehuyr hookehuyr@gmail.com
+ * @LastEditTime: 2025-03-28 13:26:37
+ * @FilePath: /mlaj/src/views/animation.vue
+ * @Description: 贝塞尔曲线动画路径组件
+ *
+ * 该组件实现了一个基于SVG的贝塞尔曲线动画效果：
+ * 1. 在画布上展示多个连接点
+ * 2. 点击"下一步"按钮可以逐步显示连接点之间的贝塞尔曲线路径
+ * 3. 路径带有动画效果和箭头指示方向
+ * 4. 已激活的路径段会以绿色高亮显示
+ * 5. 支持通过点击节点来激活路径
+-->
+<template>
+  <div class="animation-container">
+    <button class="next-button" @click="nextStep" :disabled="activeNodeIndex >= points.length - 1">下一步</button>
+    <svg width="1000" height="1000" viewBox="0 0 1000 1000">
+      <!-- 定义箭头标记 -->
+      <defs>
+        <marker
+          id="arrow-inactive"
+          viewBox="0 0 10 10"
+          refX="5"
+          refY="5"
+          markerWidth="6"
+          markerHeight="6"
+          orient="auto-start-reverse"
+        >
+          <path d="M 0 0 L 10 5 L 0 10 z" fill="#ccc" />
+        </marker>
+        <marker
+          id="arrow-active"
+          viewBox="0 0 10 10"
+          refX="5"
+          refY="5"
+          markerWidth="6"
+          markerHeight="6"
+          orient="auto-start-reverse"
+        >
+          <path d="M 0 0 L 10 5 L 0 10 z" fill="#4CAF50" />
+        </marker>
+      </defs>
+
+      <!-- 贝塞尔曲线路径 -->
+      <template v-for="(_, index) in points.slice(0, -1)" :key="index">
+        <path
+          v-show="activeNodeIndex === -1 || index > activeNodeIndex"
+          :d="calculatePathSegment(points[index], points[index + 1])"
+          fill="none"
+          :stroke="pathColor"
+          stroke-width="2"
+          stroke-dasharray="5,5"
+          class="path-animation"
+          marker-end="url(#arrow-inactive)"
+        />
+      </template>
+
+      <!-- 高亮的路径段 -->
+      <path
+        v-for="(segment, index) in activePathSegments"
+        :key="index"
+        :d="segment"
+        fill="none"
+        stroke="#4CAF50"
+        stroke-width="2"
+        stroke-dasharray="10"
+        marker-end="url(#arrow-active)"
+        class="active-path-animation"
+      />
+
+      <!-- 节点圆点 -->
+      <template v-for="(point, index) in points" :key="index">
+        <circle
+          :cx="point.x"
+          :cy="point.y"
+          r="6"
+          :class="['node', { 'node-active': activeNodeIndex >= index - 1 }]"
+          @click="activateNode(index)"
+        />
+      </template>
+    </svg>
+  </div>
+</template>
+
+<script setup>
+import { ref, computed } from 'vue';
+
+// 定义节点坐标数组，每个节点包含x和y坐标
+// 这些点将用于生成贝塞尔曲线的路径
+const points = ref([
+  { x: 250, y: 50 },
+  { x: 10, y: 250 },
+  { x: 400, y: 500 },
+  { x: 50, y: 700 },
+  { x: 400, y: 950 }
+]);
+
+// 当前激活的节点索引，初始值为-1表示没有节点被激活
+const activeNodeIndex = ref(-1);
+
+// 存储已激活的路径段数组，每个元素是一个SVG路径字符串
+// 用于显示高亮的贝塞尔曲线路径
+const activePathSegments = ref([]);
+
+// 计算完整的贝塞尔曲线路径
+// 使用三次贝塞尔曲线(Cubic Bezier)创建平滑的曲线效果
+// 控制点的位置通过当前点和下一个点的中点来计算
+const pathData = computed(() => {
+  const path = [];
+  points.value.forEach((point, index) => {
+    if (index === 0) {
+      path.push(`M ${point.x} ${point.y}`);
+    } else {
+      const prevPoint = points.value[index - 1];
+      const segment = calculatePathSegment(prevPoint, point);
+      path.push(segment.substring(segment.indexOf('C')));
+    }
+  });
+  return path.join(' ');
+});
+
+// 计算两点之间的贝塞尔曲线路径段
+// @param startPoint - 起始点坐标 {x, y}
+// @param endPoint - 结束点坐标 {x, y}
+// @returns 返回SVG路径字符串
+const calculatePathSegment = (startPoint, endPoint) => {
+  // 计算路径的方向向量
+  const dx = endPoint.x - startPoint.x;
+  const dy = endPoint.y - startPoint.y;
+  const distance = Math.sqrt(dx * dx + dy * dy);
+
+  // 设置节点间的偏移距离（可以根据需要调整）
+  const offset = 0;
+  const verticalOffset = -20; // 添加垂直偏移量参数
+
+  // 计算单位向量
+  const unitX = dx / distance;
+  const unitY = dy / distance;
+
+  // 计算偏移后的起点和终点，根据路径方向调整垂直偏移
+  const adjustedStart = {
+    x: startPoint.x + unitX * offset,
+    y: startPoint.y + (dy > 0 ? -verticalOffset : verticalOffset)
+  };
+  const adjustedEnd = {
+    x: endPoint.x - unitX * offset,
+    y: endPoint.y + (dy > 0 ? verticalOffset : -verticalOffset)
+  };
+
+  // 计算控制点
+  const cpx1 = adjustedStart.x;
+  const cpy1 = adjustedStart.y + (adjustedEnd.y - adjustedStart.y) * 0.5;
+  const cpx2 = adjustedEnd.x;
+  const cpy2 = adjustedStart.y + (adjustedEnd.y - adjustedStart.y) * 0.5;
+
+  return `M ${adjustedStart.x} ${adjustedStart.y} C ${cpx1} ${cpy1}, ${cpx2} ${cpy2}, ${adjustedEnd.x} ${adjustedEnd.y}`;
+};
+
+// 未激活路径的颜色
+// 使用浅灰色(#ccc)表示未激活状态
+const pathColor = computed(() => {
+  return '#ccc';
+});
+
+
+// 处理节点点击事件，激活指定节点并更新路径
+// @param index - 被点击节点的索引
+// 点击节点时会激活该节点及其之前的所有节点和路径
+const activateNode = (index) => {
+  activeNodeIndex.value = index;
+  activePathSegments.value = [];
+
+  // 重新计算所有激活的路径段
+  for (let i = 0; i < index; i++) {
+    const startPoint = points.value[i];
+    const endPoint = points.value[i + 1];
+    if (endPoint) {
+      const segment = calculatePathSegment(startPoint, endPoint);
+      activePathSegments.value.push(segment);
+    }
+  }
+};
+
+// 处理下一步按钮点击事件
+// 激活下一个节点并创建新的高亮路径段
+// 当到达最后一个节点时，按钮将被禁用
+const nextStep = () => {
+  if (activeNodeIndex.value < points.value.length - 1) {
+    activeNodeIndex.value++;
+    const startPoint = points.value[activeNodeIndex.value];
+    const endPoint = points.value[activeNodeIndex.value + 1];
+    // 只有当存在下一个节点时才添加新的路径段
+    if (endPoint) {
+      const newSegment = calculatePathSegment(startPoint, endPoint);
+      // 保留之前的路径段，添加新的路径段
+      activePathSegments.value.push(newSegment);
+    }
+    // 如果是最后一个节点，直接将其设置为激活状态
+    if (activeNodeIndex.value === points.value.length - 2) {
+      activeNodeIndex.value = points.value.length - 1;
+    }
+  }
+};
+</script>
+
+<style scoped>
+.animation-container {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  min-height: 100vh;
+  background: #f5f5f5;
+}
+
+.node {
+  fill: white;
+  stroke: #ccc;
+  stroke-width: 2;
+  cursor: pointer;
+  transition: all 0.3s ease;
+}
+
+.node-active {
+  fill: white;
+  stroke: #4CAF50;
+}
+
+.path-animation {
+  transition: all 0.5s ease;
+}
+
+.active-path-animation {
+  animation: dash 1.5s linear infinite;
+}
+
+@keyframes dash {
+  to {
+    stroke-dashoffset: -20;
+  }
+}
+
+.next-button {
+  position: absolute;
+  top: 20px;
+  right: 20px;
+  padding: 8px 16px;
+  background-color: #4CAF50;
+  color: white;
+  border: none;
+  border-radius: 4px;
+  cursor: pointer;
+  transition: all 0.3s ease;
+}
+
+.next-button:hover {
+  background-color: #45a049;
+}
+
+.next-button:disabled {
+  background-color: #cccccc;
+  cursor: not-allowed;
+}
+</style>