js等高线图

javascript 复制代码
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	    var volcano={"width":5,"height":5,"values":[
	      1,2,3,4,5,
	      50,7,8,9,50,
	      50,12,13,14,15,
	      16,17,18,19,20,
	      21,22,23,24,50
	    ]}
        var data = [];
        var faithful = [];
    	
    	
           Array(100).fill(0).forEach(e => {
    		let X=Math.floor(Math.random()*1000);
    		let Y=Math.floor(Math.random()*1000);
    		//let Z= parseInt ((Math.random()*1000).toFixed(2));
    		let Z= (Math.random()*1000).toFixed(0)*1;
    		data.push({
               x: X,
               y: Y,
               z: Z
           })
    		faithful.push({eruptions:Z,waiting:Y})
    	});
    	
    	console.log(data)    
    	console.log(Plot)
    	
//  	 var ps = Plot.plot({
//  	 	    x: {domain: [0,1000], label: "x轴"},
//              y: {domain: [0, 1000], label: "改了一周"},
//              color: {legend: true,scheme: "sinebow", label: "Elevation (m)"},
//              marks: [
// 
//                   Plot.contour(data, {x: "x", y: "y", fill: "z",  interpolate: "barycentric" , blur: 20 }),
//                    Plot.dot(data, {x: "x", y: "y", channels: {z: "z"}, tip: true}),
//                  Plot.frame(),
                  Plot.density(faithful, {x: "waiting", y: "eruptions", stroke: "steelblue", strokeWidth: 0.25}),
                  Plot.density(faithful, {x: "waiting", y: "eruptions", stroke: "steelblue", thresholds: 4}),
//
//                  Plot.text(["成了终于出来了啊"], {frameAnchor: "top-right",dy: -15,fontSize:15,fontWeight:900}),
//              ]
//          })

			 var ps = Plot.plot({
			 	 aspectRatio: 1,
				  color: {
				    legend: true,
				    label: "Elevation 民(m)"
				  },
				  marks: [
				       Plot.text(volcano.values, {
					      text: Plot.identity,
					      fill: "white",
					      x: 3,
					      y: 2
					    }),
			//	   Plot.raster(volcano.values, {width: volcano.width, height: volcano.height})
				    Plot.contour(volcano.values, {
				      width: volcano.width,
				      height: volcano.height,
				      fill: Plot.identity,
				      stroke: "black",
				      blur: 4
				    }),
				    Plot.frame(),
				  ]
				})

            $("#app").append(ps);


    </script>
</body>
</html>


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