From bd9cb65c8ee634f1f7bad5a69e891e3a4f46b768 Mon Sep 17 00:00:00 2001
From: ZhangXianQiang <1135831638@qq.com>
Date: 星期一, 01 四月 2024 15:54:41 +0800
Subject: [PATCH] feat:绘制地图
---
src/views/screen/components/screen-map-three/experience/world/map.js | 94 ++++++++++++++++++++++++++++++++++++++++-------
1 files changed, 80 insertions(+), 14 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 599d3df..e32efc6 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
@@ -1,24 +1,90 @@
import * as THREE from 'three';
+import * as d3 from 'd3';
+import mapData from '@/assets/map/zigong.json';
-export default class Test {
+
+const projection = d3.geoMercator().center([104.779307, 29.33924]).translate([0, 0, 0]);
+export default class Map {
constructor(experience) {
this.experience = experience;
this.scene = this.experience.scene;
+ this.operationData(mapData);
+ }
+ operationData(jsondata) {
+ this.map = new THREE.Object3D();
+ // geo淇℃伅
+ const features = jsondata.features;
+ features.forEach((feature) => {
+ // 鍗曚釜鐪佷唤 瀵硅薄
+ const province = new THREE.Object3D();
+ // 鍦板潃
+ province.properties = feature.properties.name;
+ const coordinates = feature.geometry.coordinates;
- this.setGeometry();
- this.setMaterial();
- this.setMesh();
- }
- setGeometry() {
- this.geometry = new THREE.BoxGeometry(2,2,2);
- }
- setMaterial() {
- this.geometryMaterial = new THREE.MeshStandardMaterial({
- color: '#db929d'
+ // 澶氫釜鎯呭喌
+ if (feature.geometry.type === "MultiPolygon") {
+ coordinates.forEach((coordinate) => {
+ coordinate.forEach((rows) => {
+ const line = this.drawBoundary(rows);
+ const mesh = this.drawExtrudeMesh(rows);
+ province.add(line);
+ province.add(mesh);
+ });
+ });
+ }
+
+ // 鍗曚釜鎯呭喌
+ if (feature.geometry.type === "Polygon") {
+ coordinates.forEach((coordinate) => {
+ const line = this.drawBoundary(coordinate);
+ const mesh = this.drawExtrudeMesh(coordinate);
+ province.add(line);
+ province.add(mesh);
+ });
+ }
+ this.map.add(province);
+ this.map.position.set(0, 0, 0);
});
+ this.scene.add(this.map);
}
- setMesh() {
- this.geometrytMesh = new THREE.Mesh(this.geometry, this.geometryMaterial);
- this.scene.add(this.geometrytMesh);
+ drawBoundary(polygon) {
+ const points = [];
+ for (let i = 0; i < polygon.length; i++) {
+ const [x, y] = projection(polygon[i]);
+ points.push(new THREE.Vector3(x, -y, 0));
+ }
+ const lineGeometry = new THREE.BufferGeometry().setFromPoints(points);
+ const lineMaterial = new THREE.LineBasicMaterial({
+ color: 'yellow'
+ });
+
+ return new THREE.Line(lineGeometry, lineMaterial);
+ }
+
+ drawExtrudeMesh(polygon) {
+ const shape = new THREE.Shape();
+
+ for (let i = 0; i < polygon.length; i++) {
+ const [x, y] = projection(polygon[i]);
+
+ if (i === 0) {
+ shape.moveTo(x, -y);
+ }
+
+ shape.lineTo(x, -y);
+ }
+
+ const geometry = new THREE.ExtrudeGeometry(shape, {
+ depth: 0,
+ bevelEnabled: false
+ });
+
+ const material = new THREE.MeshBasicMaterial({
+ color: '#fff',
+ transparent: true,
+ opacity: 0.2,
+ })
+
+ return new THREE.Mesh(geometry, material);
}
}
\ No newline at end of file
--
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