初次提交

2026-01-28 23:39:11 +08:00
commit 5ee9aef865
27 changed files with 4449 additions and 0 deletions
--- a/src/components/AreaCalculator.vue
+++ b/src/components/AreaCalculator.vue
@@ -0,0 +1,143 @@
+<template>
+    <div class="container">
+        <div class="tool-header">
+            <router-link to="/" class="back-link">← 返回首页</router-link>
+            <h2>📐 面积计算工具</h2>
+            <p>多边形面积计算（基于平面坐标）</p>
+        </div>
+
+        <div class="card">
+            <h3 class="card-title">输入顶点坐标</h3>
+
+            <div v-for="(point, index) in points" :key="index" class="point-input">
+                <span class="point-label">点 {{ index + 1 }}</span>
+                <input type="number" v-model.number="point.x" class="input" placeholder="X坐标" step="0.0001">
+                <input type="number" v-model.number="point.y" class="input" placeholder="Y坐标" step="0.0001">
+                <button v-if="points.length > 3" @click="removePoint(index)" class="btn-remove" title="删除此点">
+                    ✕
+                </button>
+            </div>
+
+            <div class="actions">
+                <button @click="addPoint" class="btn btn-secondary">➕ 添加顶点</button>
+                <button @click="calculate" class="btn btn-primary">计算面积</button>
+            </div>
+
+            <div v-if="area !== null" class="result mt-xl">
+                <div class="result-label">多边形面积</div>
+                <div class="result-value">
+                    {{ area.toFixed(4) }} 平方单位
+                </div>
+                <div class="result-details mt-md">
+                    <p><strong>顶点数量：</strong>{{ points.length }}</p>
+                    <p v-if="area > 10000"><strong>换算：</strong>{{ (area / 10000).toFixed(4) }} 公顷</p>
+                </div>
+            </div>
+        </div>
+    </div>
+</template>
+
+<script setup>
+import { ref } from 'vue'
+import { calculatePolygonArea } from '../utils/geometry'
+
+const points = ref([
+    { x: 0, y: 0 },
+    { x: 100, y: 0 },
+    { x: 100, y: 100 },
+    { x: 0, y: 100 }
+])
+
+const area = ref(null)
+
+const addPoint = () => {
+    points.value.push({ x: 0, y: 0 })
+}
+
+const removePoint = (index) => {
+    points.value.splice(index, 1)
+}
+
+const calculate = () => {
+    area.value = calculatePolygonArea(points.value)
+}
+</script>
+
+<style scoped>
+.tool-header {
+    text-align: center;
+    margin-bottom: var(--spacing-xl);
+}
+
+.back-link {
+    display: inline-block;
+    color: var(--text-secondary);
+    text-decoration: none;
+    margin-bottom: var(--spacing-md);
+    transition: color var(--transition-base);
+}
+
+.back-link:hover {
+    color: var(--primary);
+}
+
+.point-input {
+    display: grid;
+    grid-template-columns: 60px 1fr 1fr auto;
+    gap: var(--spacing-sm);
+    align-items: center;
+    margin-bottom: var(--spacing-md);
+}
+
+.point-label {
+    font-weight: 500;
+    color: var(--text-secondary);
+    font-size: var(--font-size-sm);
+}
+
+.btn-remove {
+    background: var(--danger);
+    color: white;
+    border: none;
+    border-radius: var(--border-radius-sm);
+    width: 36px;
+    height: 36px;
+    cursor: pointer;
+    transition: all var(--transition-base);
+    font-size: var(--font-size-lg);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}
+
+.btn-remove:hover {
+    transform: scale(1.1);
+    box-shadow: var(--shadow-md);
+}
+
+.actions {
+    display: flex;
+    gap: var(--spacing-md);
+    margin-top: var(--spacing-lg);
+}
+
+.result-details {
+    font-size: var(--font-size-base);
+    color: var(--text-secondary);
+    line-height: 1.8;
+}
+
+.result-details p {
+    margin-bottom: var(--spacing-xs);
+}
+
+@media (max-width: 768px) {
+    .point-input {
+        grid-template-columns: 50px 1fr 1fr 36px;
+    }
+
+    .actions {
+        flex-direction: column;
+    }
+}
+</style>