Testing line_strip with d3-3d
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August 10, 2017 20:46
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d3-3d: 3D LINE_STRIP
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| license: gpl-3.0 |
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| !function(t,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?define(["exports"],e):e(t.d3=t.d3||{})}(this,function(t){"use strict";function e(t,e){return t.z=-t.z,t.y=-t.y,n(r(o(t,e.y),e.x),e.z)}function r(t,e){var r=Math.sin(e),o=Math.cos(e);return{x:t.x,y:t.y*o-t.z*r,z:t.y*r+t.z*o}}function o(t,e){var r=Math.sin(e),o=Math.cos(e);return{x:t.z*r+t.x*o,y:t.y,z:t.z*o-t.x*r}}function n(t,e){var r=Math.sin(e),o=Math.cos(e);return{x:t.x*o-t.y*r,y:t.y*r+t.y*o,z:t.z}}function a(t,e){return{x:e.origin[0]+e.scale*t.x,y:e.origin[1]+e.scale*t.y}}function d(t,r,o,n){for(var d=t.length-1;d>=0;d--){var c=t[d];c.rotated=e({x:o.x(c),y:o.y(c),z:o.z(c)},n),c.centroid=c.rotated,c.projected=a(c.rotated,r)}return t}function c(t,r,o,n){for(var d=t.length-1;d>=0;d--){var c=t[d],u=c[0],y=c[1];u.rotated=e({x:o.x(u),y:o.y(u),z:o.z(u)},n),y.rotated=e({x:o.x(y),y:o.y(y),z:o.z(y)},n),u.projected=a(u.rotated,r),y.projected=a(y.rotated,r),c.lng=Math.sqrt(Math.pow(y.rotated.x-u.rotated.x,2)+Math.pow(y.rotated.y-u.rotated.y,2)+Math.pow(y.rotated.z-u.rotated.z,2)),c.centroid={x:(u.x+y.x)/2,y:(u.y+y.y)/2,z:(u.z+y.z)/2}}return t}function u(t,r,o,n){for(var d=t.length-1;d>=0;d--)for(var c=t[d],u=c.length-1;u>=0;u--){var y=c[u];y.rotated=e({x:o.x(y),y:o.y(y),z:o.z(y)},n),y.centroid=y.rotated,y.projected=a(y.rotated,r)}return t}function y(t,r,o,n){for(var d=t.length-1;d>=0;d--){var c=t[d],u=c[0],y=c[1],i=c[2];u.rotated=e({x:o.x(u),y:o.y(u),z:o.z(u)},n),y.rotated=e({x:o.x(y),y:o.y(y),z:o.z(y)},n),i.rotated=e({x:o.x(i),y:o.y(i),z:o.z(i)},n),u.projected=a(u.rotated,r),y.projected=a(y.rotated,r),i.projected=a(i.rotated,r);var f=(y.rotated.x-u.rotated.x)*(y.rotated.y+u.rotated.y),x=(i.rotated.x-y.rotated.x)*(i.rotated.y+y.rotated.y),z=(u.rotated.x-i.rotated.x)*(u.rotated.y+i.rotated.y);c.ccw=f+x+z<0,c.centroid={x:(u.rotated.x+y.rotated.x+i.rotated.x)/3,y:(u.rotated.y+y.rotated.y+i.rotated.y)/3,z:(u.rotated.z+y.rotated.z+i.rotated.z)/3}}return t}function i(t){return"M"+t[0].projected.x+","+t[0].projected.y+"L"+t[1].projected.x+","+t[1].projected.y+"L"+t[2].projected.x+","+t[2].projected.y+"Z"}function f(t){for(var e=t[t.length-1],r="M"+e.projected.x+","+e.projected.y,o=t.length-2;o>=0;o--){var n=t[o].projected;r+="L"+n.x+","+n.y}return r}function x(t){return t[0]}function z(t){return t[1]}function p(t){return t[2]}var h=function(){function t(t){return j[v](t,{scale:r,origin:e},{x:h,y:l,z:g},{x:o,y:n,z:a})}var e=[0,0],r=1,o=0,n=0,a=0,h=x,l=z,g=p,v="POINTS",j={POINTS:d,LINES:c,LINES_STRIP:u,TRIANGLES:y},s={TRIANGLES:i,LINES_STRIP:f};return t.origin=function(r){return arguments.length?(e=r,t):e},t.scale=function(e){return arguments.length?(r=e,t):r},t.rotateX=function(e){return arguments.length?(o=e,t):o},t.rotateY=function(e){return arguments.length?(n=e,t):n},t.rotateZ=function(e){return arguments.length?(a=e,t):a},t.primitiveType=function(e){return arguments.length?(v=e,t):v},t.x=function(e){return arguments.length?(h="function"==typeof e?e:+e,t):h},t.y=function(e){return arguments.length?(l="function"==typeof e?e:+e,t):l},t.z=function(e){return arguments.length?(g="function"==typeof e?e:+e,t):g},t.draw=function(t){if("POINTS"!==v&&"LINES"!==v)return s[v](t)},t};t._3d=h,Object.defineProperty(t,"__esModule",{value:!0})}); |
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script src="d3-3d.js"></script> | |
| <body> | |
| <svg width="960" height="500"></svg> | |
| <script> | |
| var origin = [480, 250], alpha = Math.PI/4, beta = 0.615472907, data = [], max = 4, min = -max, rad = Math.PI/180; | |
| var svg = d3.select('svg'); | |
| var color = d3.scaleOrdinal(d3.schemeCategory10); | |
| var rn = function(min, max){ return Math.round(d3.randomUniform(min, max + 1)()); }; | |
| d3.range(-4, 5, 2).forEach(function(i){ | |
| var o = [ | |
| [ 3, 0 , i], | |
| [ 2, rn(min, max), i], | |
| [ 1, rn(min, max), i], | |
| [ 0, rn(min, max), i], | |
| [-1, rn(min, max), i], | |
| [-2, rn(min, max), i], | |
| [-3, 0 , i] | |
| ]; | |
| data.push(o); | |
| }); | |
| var _3d = d3._3d() | |
| .scale(30) | |
| .origin(origin) | |
| .primitiveType('LINES_STRIP') | |
| .rotateX(alpha) | |
| .rotateY(beta); | |
| var data3D = _3d(data); | |
| function processData(data){ | |
| var linesStrip = svg.selectAll('path').data(data); | |
| linesStrip | |
| .enter() | |
| .append('path') | |
| .merge(linesStrip) | |
| .attr('fill', 'none') | |
| .attr('stroke', function(d, i){ return color(i); }) | |
| .attr('stroke-width', 2) | |
| .sort(function(a, b){ return b[0].rotated.z - a[0].rotated.z; }) | |
| .attr('d', _3d.draw); | |
| linesStrip.exit().remove(); | |
| } | |
| processData(data3D); | |
| setInterval(function(){ | |
| beta += rad; | |
| processData(_3d.rotateY(beta)(data)); | |
| }, 40); | |
| </script> | |
| </body> |
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