图标样式调整

xiangpei

2024-07-22 cd5280e6bf2b54d509452393d378994b49eaacab

 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';

// 地图深度
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 地图数据
     */
    operationData(jsondata) {
        this.map = new THREE.Group();

        this.map = new THREE.Object3D();
        // geo信息
        const features = jsondata.features;
        features.forEach((feature) => {
@@ -63,6 +69,7 @@
            const province = new THREE.Object3D();
            // 地址
            province.properties = feature.properties.name;
            province.isHover = false;
            // 多个情况
            // 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);
                });
            }
            // 合并成一个mesh
            // 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) {
                // 可能存在材质为数组的情况
                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; // 这些属性包括position, normal, uv等等
            }
            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;
    }
}