geo-tools/src/views/BearingCalculator.vue

<template>
    <div class="container">
        <div class="tool-header">
            <router-link to="/" class="back-link">← 返回首页</router-link>
            <h2>🧭 方位角计算工具</h2>
            <p>根据两点坐标计算方位角和象限角</p>
        </div>

        <div class="card">
            <div class="grid grid-2">
                <div>
                    <h3 class="card-title">起点坐标</h3>
                    <div class="input-group">
                        <label class="input-label">X坐标（或经度）</label>
                        <input type="number" v-model.number="point1.x" class="input" step="0.0001" placeholder="例：0">
                    </div>
                    <div class="input-group">
                        <label class="input-label">Y坐标（或纬度）</label>
                        <input type="number" v-model.number="point1.y" class="input" step="0.0001" placeholder="例：0">
                    </div>
                </div>

                <div>
                    <h3 class="card-title">终点坐标</h3>
                    <div class="input-group">
                        <label class="input-label">X坐标（或经度）</label>
                        <input type="number" v-model.number="point2.x" class="input" step="0.0001" placeholder="例：100">
                    </div>
                    <div class="input-group">
                        <label class="input-label">Y坐标（或纬度）</label>
                        <input type="number" v-model.number="point2.y" class="input" step="0.0001" placeholder="例：100">
                    </div>
                </div>
            </div>

            <button @click="calculate" class="btn btn-primary mt-lg">计算方位角</button>

            <div v-if="result" class="result mt-xl">
                <div class="result-label">计算结果</div>

                <div class="bearing-display">
                    <div class="bearing-circle">
                        <div class="compass-marker north">N</div>
                        <div class="compass-marker east">E</div>
                        <div class="compass-marker south">S</div>
                        <div class="compass-marker west">W</div>
                        <div class="bearing-arrow" :style="{ transform: `rotate(${result.azimuth}deg)` }"></div>
                    </div>

                    <div class="bearing-values">
                        <div class="value-item">
                            <span class="value-label">真方位角</span>
                            <span class="value-number">{{ result.azimuth.toFixed(4) }}°</span>
                        </div>
                        <div class="value-item">
                            <span class="value-label">象限角</span>
                            <span class="value-number">{{ result.quadrant }}</span>
                        </div>
                    </div>
                </div>

                <div class="info-box mt-lg">
                    <p><strong>说明：</strong></p>
                    <p>真方位角：从正北方向顺时针旋转到目标方向的角度（0°-360°）</p>
                    <p>象限角：从南北方向量起，向东或向西的角度</p>
                </div>
            </div>
        </div>
    </div>
</template>

<script setup>
import { ref } from 'vue'
import { calculateBearing } from '../utils/geometry'

const point1 = ref({ x: 0, y: 0 })
const point2 = ref({ x: 100, y: 100 })
const result = ref(null)

const calculate = () => {
    result.value = calculateBearing(
        point1.value.x,
        point1.value.y,
        point2.value.x,
        point2.value.y
    )
}
</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);
}

.bearing-display {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    margin-top: var(--spacing-lg);
}

.bearing-circle {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto;
    border: 3px solid var(--border-color);
    border-radius: 50%;
    background: var(--bg-secondary);
}

.compass-marker {
    position: absolute;
    font-weight: 700;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.compass-marker.north {
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--danger);
}

.compass-marker.east {
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
}

.compass-marker.south {
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
}

.compass-marker.west {
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
}

.bearing-arrow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 4px;
    height: 80px;
    background: var(--gradient-primary);
    transform-origin: bottom center;
    margin-left: -2px;
    margin-top: -80px;
    border-radius: 2px;
    transition: transform 0.5s ease;
}

.bearing-arrow::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 12px solid var(--primary);
}

.bearing-values {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.value-item {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
}

.value-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.value-number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.info-box {
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    border-left: 4px solid var(--primary);
}

.info-box p {
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

.info-box p:first-child {
    font-weight: 600;
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .bearing-display {
        grid-template-columns: 1fr;
    }

    .bearing-circle {
        width: 180px;
        height: 180px;
    }
}
</style>