From cd5280e6bf2b54d509452393d378994b49eaacab Mon Sep 17 00:00:00 2001
From: xiangpei <xiangpei@timesnew.cn>
Date: 星期一, 22 七月 2024 10:24:36 +0800
Subject: [PATCH] 图标样式调整

---
 src/views/screen/components/screen-map-three/experience/world/map.js |  170 ++++++++++++++++++++++++++++++++++++++++++++++++--------
 1 files changed, 144 insertions(+), 26 deletions(-)

diff --git a/src/views/screen/components/screen-map-three/experience/world/map.js b/src/views/screen/components/screen-map-three/experience/world/map.js
index 00cc026..1dd127f 100644
--- a/src/views/screen/components/screen-map-three/experience/world/map.js
+++ b/src/views/screen/components/screen-map-three/experience/world/map.js
@@ -1,12 +1,13 @@
 import * as THREE from 'three';
 import * as d3 from 'd3';
 import mapData from '@/assets/map/zigong2.json';
+import { CSS2DObject } from 'three/examples/jsm/renderers/CSS2DRenderer';
 
 import textureMapImage from '@/assets/map/texture/gz-map.jpg';
 import textureMapFxImage from '@/assets/map/texture/gz-map-fx.jpg';
-import { BufferGeometryUtils } from 'three/examples/jsm/utils/BufferGeometryUtils.js';
 
 import gsap from 'gsap';
+
 // 鍦板浘娣卞害
 const MAP_DEPTH = 0.2;
 
@@ -17,12 +18,17 @@
 export default class Map {
     constructor(experience) {
         this.experience = experience;
-        this.scene = this.experience.scene;
-        this.camera = this.experience.camera;
-        this.material = null;
+        this.scene = experience.scene;
+        this.camera = experience.camera;
+
+        this.provinceMeshList = [];
+        this.labelList = [];
         this.textureLoader = new THREE.TextureLoader();
         this.setTexture();
         this.operationData(mapData);
+        setTimeout(() => {
+            this.enterAnimation();
+        }, 500);
     }
     setTexture() {
         const textureMap = this.textureLoader.load(textureMapImage);
@@ -54,8 +60,8 @@
      * @param {*} jsondata 鍦板浘鏁版嵁
      */
     operationData(jsondata) {
+        this.map = new THREE.Group();
 
-        this.map = new THREE.Object3D();
         // geo淇℃伅
         const features = jsondata.features;
         features.forEach((feature) => {
@@ -63,6 +69,7 @@
             const province = new THREE.Object3D();
             // 鍦板潃
             province.properties = feature.properties.name;
+            province.isHover = false;
             // 澶氫釜鎯呭喌
             // console.log(feature.geometry.type);
             if (feature.geometry.type === "MultiPolygon") {
@@ -72,6 +79,7 @@
                         const mesh = this.drawExtrudeMesh(rows);
                         province.add(line);
                         province.add(mesh);
+                        this.provinceMeshList.push(mesh);
                     });
                 });
             }
@@ -83,20 +91,19 @@
                     const mesh = this.drawExtrudeMesh(coordinate);
                     province.add(line);
                     province.add(mesh);
+                    this.provinceMeshList.push(mesh);
                 });
             }
-            // 鍚堝苟鎴愪竴涓猰esh
-            // const mergedGeometry = BufferGeometryUtils.mergeGeometries(province.children);
-            
+            const label = this.drawLabelText(feature);
+            this.labelList.push({ name: feature.properties.name, label });
+            province.add(label);
             this.map.add(province);
         });
         this.map.position.set(1, 1, -1.5);
-        this.map.scale.set(10, 10, 10);
+        this.map.scale.set(10, 10, 1);
         this.map.rotation.set(THREE.MathUtils.degToRad(-90), 0, THREE.MathUtils.degToRad(20));
-        // this.container = new THREE.Object3D();
-        // this.container.add(this.map);
         this.scene.add(this.map);
-        console.log(this.map);
+
         this.setMouseEvent();
     }
 
@@ -148,10 +155,25 @@
         ]);
     }
 
+    drawLabelText(province) {
+        const [x, y] = projection(province.properties.center);
+        const div = document.createElement('div');
+        div.innerHTML = province.properties.name;
+        div.style.padding = '4px 10px';
+        div.style.color = '#fff';
+        div.style.fontSize = '16px';
+        div.style.position = 'absolute';
+        div.style.backgroundColor = 'rgba(25,25,25,0.5)';
+        div.style.borderRadius = '5px';
+        const label = new CSS2DObject(div);
+        div.style.pointerEvents = 'none';
+        label.position.set(x, y, MAP_DEPTH + 0.05);
+        return label;
+    }
+
 
     setMouseEvent() {
         this.mouseEvent = this.handleEvent.bind(this);
-        // this.experience.canvas.addEventListener("mousemove", this.throttle(this.mouseEvent,100));
         this.experience.canvas.addEventListener("mousemove", this.mouseEvent);
     }
 
@@ -163,19 +185,23 @@
         // console.log(this);
         // return;
         if (this.map) {
-            const mouse = new THREE.Vector2();
-            mouse.x = (e.clientX / window.innerWidth) * 2 - 1;
-            mouse.y = -(e.clientY / window.innerHeight) * 2 + 1;
+            let mouse = new THREE.Vector2();
+            let getBoundingClientRect = this.experience.canvas.getBoundingClientRect();
+            let x = ((e.clientX - getBoundingClientRect.left) / getBoundingClientRect.width) * 2 - 1;
+            let y = -((e.clientY - getBoundingClientRect.top) / getBoundingClientRect.height) * 2 + 1;
+            mouse.x = x;
+            mouse.y = y;
+
             raycaster.setFromCamera(mouse, this.camera.instance);
-            const intersects = raycaster.intersectObjects(this.map.children, true);
+
+            let intersects = raycaster.intersectObjects(this.provinceMeshList, false);
+
             if (intersects.length) {
-                intersects.forEach((item) => {
-                    if (item.object)
-                        if (item.object.meshName === 'province') {
-                            console.log(item.object);
-                            this.animation(item.object);
-                        }
-                });
+                let temp = intersects[0].object;
+                this.animation(temp.parent);
+                this.showLabel(temp.parent);
+            } else {
+                this.animation();
             }
         }
     }
@@ -191,7 +217,99 @@
         };
     }
 
-    animation(mesh) {
-        console.log(mesh);
+    animation(province) {
+        if (province) {
+            if (!province.isHover) {
+                province.isHover = true;
+                this.map.children.forEach((item) => {
+                    if (item.properties === province.properties) {
+                        gsap.to(province.position, {
+                            z: 0.12,
+                            duration: 0.6
+                        })
+                    } else {
+                        this.resetAnimation(item);
+                    }
+                })
+            }
+        } else {
+            this.resetAllAnimation();
+        }
+
+    }
+
+    resetAnimation(province) {
+        gsap.to(province.position, {
+            z: 0,
+            duration: 0.6,
+            onComplete: () => {
+                province.isHover = false;
+            }
+        })
+    }
+
+    resetAllAnimation() {
+        this.map.children.forEach((item) => {
+            this.resetAnimation(item);
+        })
+    }
+
+    showLabel(province) {
+        this.labelList.forEach((item) => {
+            // if (item.name === province.properties) {
+            //     item.label.element.style.visibility = 'visible';
+            // } else {
+            //     item.label.element.style.visibility = 'hidden';
+            // }
+        })
+    }
+
+    enterAnimation() {
+        gsap.to(this.map.scale, {
+            z: 10,
+            duration: 0.6,
+            ease: 'power1.out'
+        })
+    }
+
+    destroy() {
+        this.removeMouseEvent();
+        this.disposeObject();
+        this.removeObject();
+        this.resetObject();
+    }
+
+    disposeObject() {
+        this.map.traverse((child) => {
+            if (child.material) {
+                // 鍙兘瀛樺湪鏉愯川涓烘暟缁勭殑鎯呭喌
+                if (child.material instanceof Array) {
+                    child.material.forEach((item) => item.dispose());
+                } else {
+                    child.material.dispose();
+                    if (child.material.map) {
+                        child.material.map.dispose();
+                    }
+                }
+            }
+            if (child.geometry) {
+                child.geometry.dispose();
+                child.geometry.attributes = null; // 杩欎簺灞炴�у寘鎷琾osition, normal, uv绛夌瓑
+            }
+            child = null;
+        });
+        this.topFaceMaterial.dispose();
+        this.sideMaterial.dispose();
+    }
+
+    removeObject() {
+        this.scene.remove(this.map);
+    }
+
+    resetObject() {
+        this.map = null;
+        this.provinceMeshList = null;
+        this.labelList = null;
+        this.textureLoader = null;
     }
 }
\ No newline at end of file

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