这次我们用pixi.js和arcgis js结合
我们先定义一下 传入数据结构 symbol 暂时不做
- let option = {
- renderer: {
- type: "simple",
- symbol: {
- }
- },
- data: [
- {
- geometry: [12956152.73135875, 4855356.473704897],
- attributes: {
- name: "北京"
- }
- },
- {
- geometry: [12697872.012783196, 2577456.5937789795],
- attributes: {
- name: "深圳"
- }
- }
- ]
- };
对于data 数据 ,
toScreen 方法参考链接提示
app 的构建参考 链接提示
- let data = this.options.data;
- for(let item of data){
- //转换屏幕坐标，获取颜色，半径和线条粗细样式
- let geo = item.geometry
- let XY1 = toScreen(geo);
- const geometry = new PIXI.Geometry()
- .addAttribute("position", [100, 100, -100, 100, -100, -100, 100, -100, 200, 200], 2)
- .addAttribute('uv', // the attribute name
- [0, 0, // u, v
- 1, 0, // u, v
- 1, 1,
- 0, 1], // u, v
- 2)
- .addIndex([0, 1, 2, 0, 2, 3]);
- const fragmentShader = `
- #define SMOOTH(r,R) (1.0-smoothstep(R-1.0,R+1.0, r))
- #define RANGE(a,b,x) ( step(a,x)*(1.0-step(b,x)) )
- #define RS(a,b,x) ( smoothstep(a-1.0,a+1.0,x)*(1.0-smoothstep(b-1.0,b+1.0,x)) )
- #define M_PI 3.1415926535897932384626433832795
- #define blue1 vec3(0.74,0.95,1.00)
- #define blue2 vec3(0.87,0.98,1.00)
- #define blue3 vec3(0.35,0.76,0.83)
- #define blue4 vec3(0.953,0.969,0.89)
- #define red vec3(1.00,0.38,0.227)
- #define MOV(a,b,c,d,t) (vec2(a*cos(t)+b*cos(0.1*(t)), c*sin(t)+d*cos(0.1*(t))))
- const float ratio = 1.0;
- float PI = 3.1415926;
- uniform float iTime;