feat(earth): toolbar and zoom improvements

- Add box-sizing/padding normalization to toolbar buttons
- Remove zoom slider, implement click/hold zoom behavior (+/- buttons)
- Add 10% step on click, 1% continuous on hold
- Fix satellite init: show satellite points immediately, delay trail visibility
- Fix breathing effect: faster pulse, wider opacity range
- Add toggle-cables functionality with visibility state
- Initialize satellites and cables as visible by default

frontend/public/earth/css/base.css

@@ -43,7 +43,7 @@ body {
   display: flex;
   flex-direction: column;
   align-items: center;
-  gap: 4px;
+  gap: 6px;
   background: rgba(10, 10, 30, 0.9);
   padding: 8px 4px;
   border-radius: 24px;
@@ -93,7 +93,9 @@ body {
   justify-content: center;
   transition: all 0.2s ease;
   padding: 0;
+  margin: 0;
   flex: 0 0 auto;
+  box-sizing: border-box;
 }
 
 #zoom-toolbar .zoom-btn:hover {
@@ -306,6 +308,9 @@ input[type="range"]::-webkit-slider-thumb {
   align-items: center;
   justify-content: center;
   transition: all 0.2s ease;
+  box-sizing: border-box;
+  padding: 0;
+  margin: 0;
 }
 
 .toolbar-btn:hover {

frontend/public/earth/index.html

@@ -38,8 +38,7 @@
 
     <div id="right-toolbar-group">
       <div id="zoom-toolbar">
-        <button id="reset-view" class="zoom-btn">🎯</button>
+        <button id="reset-view" class="zoom-btn">📍</button>
-        <input type="range" id="zoom-slider" min="0.5" max="5" step="0.01" value="1">
         <button id="zoom-in" class="zoom-btn">+</button>
         <span id="zoom-value" class="zoom-percent">100%</span>
         <button id="zoom-out" class="zoom-btn">−</button>
@@ -48,8 +47,9 @@
       <div id="control-toolbar">
         <div class="toolbar-items">
           <button id="rotate-toggle" class="toolbar-btn" title="自动旋转">🔄<span class="tooltip">自动旋转</span></button>
+          <button id="toggle-cables" class="toolbar-btn active" title="显示/隐藏线缆">🌐<span class="tooltip">隐藏线缆</span></button>
           <button id="toggle-terrain" class="toolbar-btn" title="显示/隐藏地形">⛰️<span class="tooltip">显示/隐藏地形</span></button>
-          <button id="toggle-satellites" class="toolbar-btn" title="显示/隐藏卫星">🛰️<span class="tooltip">显示/隐藏卫星</span></button>
+          <button id="toggle-satellites" class="toolbar-btn active" title="显示/隐藏卫星">🛰️<span class="tooltip">隐藏卫星</span></button>
           <button id="toggle-trails" class="toolbar-btn" title="显示/隐藏轨迹">✨<span class="tooltip">显示/隐藏轨迹</span></button>
           <button id="reload-data" class="toolbar-btn" title="重新加载数据">🔃<span class="tooltip">重新加载数据</span></button>
         </div>

frontend/public/earth/js/cables.js

@@ -11,6 +11,7 @@ export let cableLines = [];
 export let landingPoints = [];
 export let lockedCable = null;
 let cableIdMap = new Map();
+let cablesVisible = true;
 
 function getCableColor(properties) {
   if (properties.color) {
@@ -406,3 +407,17 @@ export function resetLandingPointVisualState() {
     lp.scale.setScalar(1.0);
   });
 }
+
+export function toggleCables(show) {
+  cablesVisible = show;
+  cableLines.forEach(cable => {
+    cable.visible = cablesVisible;
+  });
+  landingPoints.forEach(lp => {
+    lp.visible = cablesVisible;
+  });
+}
+
+export function getShowCables() {
+  return cablesVisible;
+}

frontend/public/earth/js/constants.js

@@ -39,11 +39,11 @@ export const CABLE_COLORS = {
 };
 
 export const CABLE_CONFIG = {
-  lockedOpacityMin: 0.6,
+  lockedOpacityMin: 0.2,
   lockedOpacityMax: 1.0,
   otherOpacity: 0.5,
   otherBrightness: 0.6,
-  pulseSpeed: 0.003,
+  pulseSpeed: 0.008,
   pulseCoefficient: 0.4
 };
 

frontend/public/earth/js/controls.js

@@ -5,6 +5,7 @@ import { updateZoomDisplay, showStatusMessage } from './ui.js';
 import { toggleTerrain } from './earth.js';
 import { reloadData } from './main.js';
 import { toggleSatellites, toggleTrails, getShowSatellites, getSatelliteCount } from './satellites.js';
+import { toggleCables, getShowCables } from './cables.js';
 
 export let autoRotate = true;
 export let zoomLevel = 1.0;
@@ -23,33 +24,18 @@ export function setupControls(camera, renderer, scene, earth) {
 
 function setupZoomControls(camera) {
   let zoomInterval = null;
-  let lastDirection = 0;
+  let holdTimeout = null;
-  let isSnapped = false;
+  let startTime = 0;
+  const HOLD_THRESHOLD = 150;
+  const LONG_PRESS_TICK = 50;
+  const CLICK_STEP = 10;
   
   const MIN_PERCENT = CONFIG.minZoom * 100;
   const MAX_PERCENT = CONFIG.maxZoom * 100;
   
-  function adjustZoom(direction) {
+  function doZoomStep(direction) {
-    const currentPercent = Math.round(zoomLevel * 100);
+    let currentPercent = Math.round(zoomLevel * 100);
-    let newPercent;
+    let newPercent = direction > 0 ? currentPercent + CLICK_STEP : currentPercent - CLICK_STEP;
-    
-    if (direction > 0) {
-      if (!isSnapped || currentPercent % 10 !== 0) {
-        newPercent = Math.ceil(currentPercent / 10) * 10;
-        if (newPercent <= currentPercent) newPercent = currentPercent + 10;
-        isSnapped = true;
-      } else {
-        newPercent = currentPercent + 10;
-      }
-    } else {
-      if (!isSnapped || currentPercent % 10 !== 0) {
-        newPercent = Math.floor(currentPercent / 10) * 10;
-        if (newPercent >= currentPercent) newPercent = currentPercent - 10;
-        isSnapped = true;
-      } else {
-        newPercent = currentPercent - 10;
-      }
-    }
     
     if (newPercent > MAX_PERCENT) newPercent = MAX_PERCENT;
     if (newPercent < MIN_PERCENT) newPercent = MIN_PERCENT;
@@ -58,13 +44,22 @@ function setupZoomControls(camera) {
     applyZoom(camera);
   }
   
-  function startZoom(direction) {
+  function doContinuousZoom(direction) {
-    isSnapped = false;
+    let currentPercent = Math.round(zoomLevel * 100);
-    lastDirection = direction;
+    let newPercent = direction > 0 ? currentPercent + 1 : currentPercent - 1;
-    adjustZoom(direction);
+    
+    if (newPercent > MAX_PERCENT) newPercent = MAX_PERCENT;
+    if (newPercent < MIN_PERCENT) newPercent = MIN_PERCENT;
+    
+    zoomLevel = newPercent / 100;
+    applyZoom(camera);
+  }
+  
+  function startContinuousZoom(direction) {
+    doContinuousZoom(direction);
     zoomInterval = setInterval(() => {
-      adjustZoom(direction);
+      doContinuousZoom(direction);
-    }, 150);
+    }, LONG_PRESS_TICK);
   }
   
   function stopZoom() {
@@ -72,29 +67,49 @@ function setupZoomControls(camera) {
       clearInterval(zoomInterval);
       zoomInterval = null;
     }
+    if (holdTimeout) {
+      clearTimeout(holdTimeout);
+      holdTimeout = null;
+    }
   }
   
-  document.getElementById('zoom-in').addEventListener('mousedown', () => startZoom(1));
+  function handleMouseDown(direction) {
-  document.getElementById('zoom-in').addEventListener('mouseup', stopZoom);
+    startTime = Date.now();
-  document.getElementById('zoom-in').addEventListener('mouseleave', stopZoom);
+    stopZoom();
-  document.getElementById('zoom-in').addEventListener('touchstart', (e) => { e.preventDefault(); startZoom(1); });
+    holdTimeout = setTimeout(() => {
-  document.getElementById('zoom-in').addEventListener('touchend', stopZoom);
+      startContinuousZoom(direction);
+    }, HOLD_THRESHOLD);
+  }
   
-  document.getElementById('zoom-out').addEventListener('mousedown', () => startZoom(-1));
+  function handleMouseUp(direction) {
-  document.getElementById('zoom-out').addEventListener('mouseup', stopZoom);
+    const heldTime = Date.now() - startTime;
+    stopZoom();
+    if (heldTime < HOLD_THRESHOLD) {
+      doZoomStep(direction);
+    }
+  }
+  
+  document.getElementById('zoom-in').addEventListener('mousedown', () => handleMouseDown(1));
+  document.getElementById('zoom-in').addEventListener('mouseup', () => handleMouseUp(1));
+  document.getElementById('zoom-in').addEventListener('mouseleave', stopZoom);
+  document.getElementById('zoom-in').addEventListener('touchstart', (e) => { e.preventDefault(); handleMouseDown(1); });
+  document.getElementById('zoom-in').addEventListener('touchend', () => handleMouseUp(1));
+  
+  document.getElementById('zoom-out').addEventListener('mousedown', () => handleMouseDown(-1));
+  document.getElementById('zoom-out').addEventListener('mouseup', () => handleMouseUp(-1));
   document.getElementById('zoom-out').addEventListener('mouseleave', stopZoom);
-  document.getElementById('zoom-out').addEventListener('touchstart', (e) => { e.preventDefault(); startZoom(-1); });
+  document.getElementById('zoom-out').addEventListener('touchstart', (e) => { e.preventDefault(); handleMouseDown(-1); });
-  document.getElementById('zoom-out').addEventListener('touchend', stopZoom);
+  document.getElementById('zoom-out').addEventListener('touchend', () => handleMouseUp(-1));
   
   document.getElementById('zoom-value').addEventListener('click', function() {
-    const startZoom = zoomLevel;
+    const startZoomVal = zoomLevel;
     const targetZoom = 1.0;
-    const startDistance = CONFIG.defaultCameraZ / startZoom;
+    const startDistance = CONFIG.defaultCameraZ / startZoomVal;
     const targetDistance = CONFIG.defaultCameraZ / targetZoom;
     
     animateValue(0, 1, 600, (progress) => {
       const ease = 1 - Math.pow(1 - progress, 3);
-      zoomLevel = startZoom + (targetZoom - startZoom) * ease;
+      zoomLevel = startZoomVal + (targetZoom - startZoomVal) * ease;
       camera.position.z = CONFIG.defaultCameraZ / zoomLevel;
       const distance = startDistance + (targetDistance - startDistance) * ease;
       updateZoomDisplay(zoomLevel, distance.toFixed(0));
@@ -103,12 +118,6 @@ function setupZoomControls(camera) {
       showStatusMessage('缩放已重置到100%', 'info');
     });
   });
-  
-  const slider = document.getElementById('zoom-slider');
-  slider?.addEventListener('input', (e) => {
-    zoomLevel = parseFloat(e.target.value);
-    applyZoom(camera);
-  });
 }
 
 function setupWheelZoom(camera, renderer) {
@@ -235,6 +244,14 @@ function setupTerrainControls() {
     showStatusMessage(showTrails ? '轨迹已显示' : '轨迹已隐藏', 'info');
   });
   
+  document.getElementById('toggle-cables').addEventListener('click', function() {
+    const showCables = !getShowCables();
+    toggleCables(showCables);
+    this.classList.toggle('active', showCables);
+    this.querySelector('.tooltip').textContent = showCables ? '隐藏线缆' : '显示线缆';
+    showStatusMessage(showCables ? '线缆已显示' : '线缆已隐藏', 'info');
+  });
+  
   document.getElementById('reload-data').addEventListener('click', async () => {
     await reloadData();
     showStatusMessage('数据已重新加载', 'success');

frontend/public/earth/js/main.js

@@ -92,7 +92,7 @@ function applyCableVisualState() {
     
     switch (state) {
       case CABLE_STATE.LOCKED:
-        c.material.opacity = 0.3 + pulse * 0.7;
+        c.material.opacity = CABLE_CONFIG.lockedOpacityMin + pulse * (CABLE_CONFIG.lockedOpacityMax - CABLE_CONFIG.lockedOpacityMin);
         c.material.color.setRGB(1, 1, 1);
         break;
       case CABLE_STATE.HOVERED:
@@ -201,6 +201,8 @@ async function loadData(showWhiteSphere = false) {
     console.log(`卫星数据加载完成: ${satCount} 颗`);
     updateSatellitePositions();
     console.log('卫星位置已更新');
+    toggleSatellites(true);
+    console.log('卫星已显示');
   } catch (error) {
     console.error('加载数据失败:', error);
     showStatusMessage('加载数据失败: ' + error.message, 'error');

frontend/public/earth/js/satellites.js

@@ -7,8 +7,9 @@ import { CONFIG, SATELLITE_CONFIG } from './constants.js';
 let satellitePoints = null;
 let satelliteTrails = null;
 let satelliteData = [];
-let showSatellites = false;
+let showSatellites = true;
 let showTrails = true;
+let trailsReady = false;
 let animationTime = 0;
 let selectedSatellite = null;
 let satellitePositions = [];
@@ -320,6 +321,10 @@ export function updateSatellitePositions(deltaTime = 0) {
   
   satelliteTrails.geometry.attributes.position.needsUpdate = true;
   satelliteTrails.geometry.attributes.color.needsUpdate = true;
+  
+  if (!trailsReady && count > 0 && satellitePositions[0]?.trail.length >= TRAIL_LENGTH) {
+    trailsReady = true;
+  }
 }
 
 export function toggleSatellites(visible) {
@@ -328,14 +333,14 @@ export function toggleSatellites(visible) {
     satellitePoints.visible = visible;
   }
   if (satelliteTrails) {
-    satelliteTrails.visible = visible && showTrails;
+    satelliteTrails.visible = visible && showTrails && trailsReady;
   }
 }
 
 export function toggleTrails(visible) {
   showTrails = visible;
   if (satelliteTrails) {
-    satelliteTrails.visible = visible && showSatellites;
+    satelliteTrails.visible = visible && showSatellites && trailsReady;
   }
 }
 

frontend/public/earth/js/ui.js

@@ -25,7 +25,8 @@ export function updateZoomDisplay(zoomLevel, distance) {
   const percent = Math.round(zoomLevel * 100);
   document.getElementById('zoom-value').textContent = percent + '%';
   document.getElementById('zoom-level').textContent = '缩放: ' + percent + '%';
-  document.getElementById('zoom-slider').value = zoomLevel;
+  const slider = document.getElementById('zoom-slider');
+  if (slider) slider.value = zoomLevel;
   document.getElementById('camera-distance').textContent = distance + ' km';
 }