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(acos(t)+bcos(0.1*(t)), csin(t)+dcos(0.1*(t))))
const float ratio = 1.0;
float PI = 3.1415926;
uniform float iTime;