From 06eeb9b59644971d93e6dd9207ac447864e527b9 Mon Sep 17 00:00:00 2001
From: riku <risaku@163.com>
Date: 星期二, 03 六月 2025 17:38:08 +0800
Subject: [PATCH] 动态溯源(待完成)

---
 src/utils/map/3dLayer.js |  126 +++++++++++++++++++++++++++++++++++++----
 1 files changed, 112 insertions(+), 14 deletions(-)

diff --git a/src/utils/map/3dLayer.js b/src/utils/map/3dLayer.js
index 01ff1d2..6a7c0c8 100644
--- a/src/utils/map/3dLayer.js
+++ b/src/utils/map/3dLayer.js
@@ -30,6 +30,16 @@
   const fDatas = _factorDatas;
   const factor = _factor;
   drawMesh(fDatas, factor);
+
+  if (_polFactorDatasList.length > 0) {
+    _polCylinderList.forEach((p) => {
+      object3Dlayer.remove(p);
+    });
+    _polCylinderList = [];
+    _polFactorDatasList.forEach((e, i) => {
+      drawHighLight3DLayer(e, _polFactorList[i]);
+    });
+  }
   // console.log(map.getZoom());
 }
 
@@ -106,12 +116,20 @@
 
   var geometry = cylinder.geometry;
 
-  const scale = _getScale(_minH, _maxH);
+  var minH = heights[0];
+  var maxH = heights[0];
+  for (let i = 0; i < heights.length; i++) {
+    const h = heights[i];
+    minH = Math.min(minH, h);
+    maxH = Math.max(maxH, h);
+  }
+
+  const scale = _getScale(minH, maxH);
   for (let i = 0; i < coors.length; i++) {
     var r = lnglats_GD[i];
     var lastP = lnglats_GD[i - 1];
     var p = coors[i];
-    var h = (heights[i] - _minH) * scale + _minHeight;
+    var h = (heights[i] - minH) * scale + _minHeight;
     if (heights[i] == -1) {
       h = -1;
     }
@@ -166,12 +184,90 @@
   _cylinder = cylinder;
 }
 
+/**
+ * 缁樺埗楂樹寒鐨勬薄鏌撳尯鍩�3D绔嬮潰
+ */
+var _polCylinderList = [];
+var _polFactorDatasList = [],
+  //褰撳墠閫変腑鐨勭洃娴嬪洜瀛愭暟鎹�
+  _polFactorList = [];
+function drawHighLight3DLayer(fDatas, factor) {
+  const offsetH = 100;
+
+  const lnglats_GD = fDatas.lnglats_GD;
+  const coors = fDatas.coors_GD;
+  const heights = factor.heights;
+  const colors = factor.colors;
+  const bColors = factor.bottomColors;
+
+  // eslint-disable-next-line no-undef
+  var cylinder = new AMap.Object3D.Mesh();
+  cylinder.backOrFront = 'both';
+  cylinder.transparent = true;
+
+  var geometry = cylinder.geometry;
+
+  const scale = _getScale(_minH, _maxH);
+  for (let i = 0; i < coors.length; i++) {
+    var r = lnglats_GD[i];
+    var lastP = lnglats_GD[i - 1];
+    var p = coors[i];
+    var h = (heights[i] - _minH) * scale + _minHeight;
+    if (heights[i] == -1) {
+      h = -1;
+    }
+
+    geometry.vertices.push(p.x, p.y, 0 - h); //搴曢儴椤剁偣
+    geometry.vertices.push(p.x, p.y, 0 - h - offsetH); //椤堕儴椤剁偣
+
+    if (i > 0) {
+      // eslint-disable-next-line no-undef
+      var distance = AMap.GeometryUtil.distance(r, lastP);
+      //涓や釜鏁版嵁鐐规渶灏忛棿闅旀椂闂翠负4s锛屽亣璁捐溅閫熸寜鐓�120km/h璁$畻锛�4s琛岄┒鏈�澶ц窛绂讳綔涓�132绫筹紝
+      //璁惧畾瓒呰繃1鍒嗛挓鐨勬暟鎹粯鍒剁壒娈婄殑杩炵嚎
+      if (distance <= 500 && h != -1) {
+        var bottomIndex = i * 2;
+        var topIndex = bottomIndex + 1;
+        var lastBottomIndex = bottomIndex - 2;
+        var lastTopIndex = bottomIndex - 1;
+        geometry.faces.push(bottomIndex, topIndex, lastTopIndex);
+        geometry.faces.push(bottomIndex, lastBottomIndex, lastTopIndex);
+      }
+    }
+
+    const color = [1, 1, 1, 1];
+    // const color = [1, 0, 0, 0.75];
+    geometry.vertexColors.push.apply(geometry.vertexColors, color); //搴曢儴椤剁偣棰滆壊
+    geometry.vertexColors.push.apply(geometry.vertexColors, color); //椤堕儴椤剁偣棰滆壊
+  }
+
+  // 7.鏍规嵁鍚堝苟閫夐」閲嶇疆鎴栨柊澧炲綋鍓嶇紦瀛樻暟鎹�
+  _polFactorDatasList.push(fDatas);
+  _polFactorList.push(factor);
+  // if (_polCylinderList.length > 0) {
+  //   _polCylinderList.forEach((p) => {
+  //     object3Dlayer.remove(p);
+  //   });
+  // }
+  object3Dlayer.add(cylinder);
+
+  _polCylinderList.push(cylinder);
+}
+
 export default {
   clear() {
     map.off('zoomend', onMapZoom);
     if (_cylinder != undefined) {
       object3Dlayer.remove(_cylinder);
     }
+    if (_polCylinderList.length > 0) {
+      _polCylinderList.forEach((p) => {
+        object3Dlayer.remove(p);
+      });
+      _polCylinderList = [];
+    }
+    _polFactorDatasList = [];
+    _polFactorList = [];
   },
 
   drawMesh: drawMesh,
@@ -189,17 +285,17 @@
     map.off('zoomend', onMapZoom);
 
     // 2.璁$畻缁樺浘楂樺害鐨勮竟鐣屽��
-    if (merge != true) {
-      var minH = _minH < 0 ? heights[0] : _minH;
-      var maxH = _maxH < 0 ? heights[0] : _maxH;
-      for (let i = 0; i < heights.length; i++) {
-        const h = heights[i];
-        minH = Math.min(minH, h);
-        maxH = Math.max(maxH, h);
-      }
-      _minH = minH;
-      _maxH = maxH;
-    }
+    // if (merge != true) {
+    //   var minH = _minH < 0 ? heights[0] : _minH;
+    //   var maxH = _maxH < 0 ? heights[0] : _maxH;
+    //   for (let i = 0; i < heights.length; i++) {
+    //     const h = heights[i];
+    //     minH = Math.min(minH, h);
+    //     maxH = Math.max(maxH, h);
+    //   }
+    //   _minH = minH;
+    //   _maxH = maxH;
+    // }
 
     // 5.缁樺埗3D鍥惧舰
     this.drawMesh(fDatas, factor, merge);
@@ -211,5 +307,7 @@
     if (lnglats_GD.length > 0) {
       map.on('zoomend', onMapZoom);
     }
-  }
+  },
+
+  drawHighLight3DLayer
 };

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