commit 3cff0a6c3f6901516d4be025ae9ea7742f668a0b Author: Dym Sohin Date: Sun Aug 6 23:47:49 2023 +0200 re-init diff --git a/index.html b/index.html new file mode 100644 index 0000000..18bfc13 --- /dev/null +++ b/index.html @@ -0,0 +1,6 @@ + + + + + + diff --git a/meta.kdl b/meta.kdl new file mode 100644 index 0000000..f6dd08b --- /dev/null +++ b/meta.kdl @@ -0,0 +1,15 @@ +title "rainbow-star-cluster" +description "random distribution of colored dots in 3D" +media-type "webview" +tags "visualization" "colors" +license "AGPL" +homepage "https://dym.sh/rainbow-star-cluster/" +source "https://source.garden/vis/rainbow-star-cluster/" + +mirrors { + codepen "https://codepen.io/dym-sh/pen/abmovpP" +} + +log { + init 2019 +} diff --git a/readme.md b/readme.md new file mode 100644 index 0000000..1c7b5f5 --- /dev/null +++ b/readme.md @@ -0,0 +1,10 @@ +# rainbow-star-cluster + +> random distribution of colored dots in 3D + + +## preview +- https://codepen.io/dym-sh/pen/abmovpP/left/?editors=0010 +- https://dym.sh/rainbow-star-cluster/ + +![thumbnail](./th.png) diff --git a/script.js b/script.js new file mode 100644 index 0000000..1edf350 --- /dev/null +++ b/script.js @@ -0,0 +1,50 @@ +const rand = ( min, max ) => + ( undefined == max ) + ? ( Math.random() * min ) + : ( Math.random() * (max - min) + min ) + + +const starCount = 2400 + , maxRaduis = 500 + +let canvas = document.querySelector('canvas') + , starGroup + , stars = [ ] + +ill = new Zdog.Illustration + ({ element: canvas + , dragRotate: true + }) + +starGroup = new Zdog.Group({ addTo: ill }) + +for( let i = 1; i < starCount; i++ ) + { const R = rand( maxRaduis ) + , F = rand( 2 * Math.PI ) + , T = rand( Math.PI ) + , x = R * Math.sin( F ) * Math.cos( T ) + , y = R * Math.sin( F ) * Math.sin( T ) + , z = R * Math.cos( F ) + , stroke = ( maxRaduis - R ) / 25 + 5 + , Hue = R * 360 / maxRaduis - 60 + , color = `hsl(${Hue}, 100%, 50%)` + + stars.push({ shape: new Zdog.Shape( + { addTo: starGroup + , translate: { x, y, z } + , stroke + , color + }) + }) + } + + +const animate = ( ) => + { starGroup.rotate.y += 0.001 + starGroup.rotate.x -= 0.001 + starGroup.rotate.z -= 0.001 + + ill.updateRenderGraph( ) + window.requestAnimationFrame( animate ) + } +animate( ) diff 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Set to "+e)}var i=r==1;if(e.isCanvas&&i){this.renderCanvasDot(t,e)}else{this.renderPath(t,e)}};var o=e.TAU;n.prototype.renderCanvasDot=function(t){var e=this.getLineWidth();if(!e){return}t.fillStyle=this.getRenderColor();var r=this.pathCommands[0].endRenderPoint;t.beginPath();var i=e/2;t.arc(r.x,r.y,i,0,o);t.fill()};n.prototype.getLineWidth=function(){if(!this.stroke){return 0}if(this.stroke==true){return 1}return this.stroke};n.prototype.getRenderColor=function(){var t=typeof this.backface=="string"&&this.isFacingBack;var e=t?this.backface:this.color;return e};n.prototype.renderPath=function(t,e){var r=this.getRenderElement(t,e);var i=this.pathCommands.length==2&&this.pathCommands[1].method=="line";var n=!i&&this.closed;var o=this.getRenderColor();e.renderPath(t,r,this.pathCommands,n);e.stroke(t,r,this.stroke,o,this.getLineWidth());e.fill(t,r,this.fill,o);e.end(t,r)};var s="http://www.w3.org/2000/svg";n.prototype.getRenderElement=function(t,e){if(!e.isSvg){return}if(!this.svgElement){this.svgElement=document.createElementNS(s,"path");this.svgElement.setAttribute("stroke-linecap","round");this.svgElement.setAttribute("stroke-linejoin","round")}return this.svgElement};return n});(function(t,e){if(typeof module=="object"&&module.exports){module.exports=e(require("./anchor"))}else{var r=t.Zdog;r.Group=e(r.Anchor)}})(this,function t(r){var e=r.subclass({updateSort:false,visible:true});e.prototype.updateSortValue=function(){var e=0;this.flatGraph.forEach(function(t){t.updateSortValue();e+=t.sortValue});this.sortValue=e/this.flatGraph.length;if(this.updateSort){this.flatGraph.sort(r.shapeSorter)}};e.prototype.render=function(e,r){if(!this.visible){return}this.flatGraph.forEach(function(t){t.render(e,r)})};e.prototype.updateFlatGraph=function(){var t=[];this.flatGraph=this.addChildFlatGraph(t)};e.prototype.getFlatGraph=function(){return[this]};return e});(function(t,e){if(typeof module=="object"&&module.exports){module.exports=e(require("./shape"))}else{var r=t.Zdog;r.Rect=e(r.Shape)}})(this,function t(e){var r=e.subclass({width:1,height:1});r.prototype.setPath=function(){var t=this.width/2;var e=this.height/2;this.path=[{x:-t,y:-e},{x:t,y:-e},{x:t,y:e},{x:-t,y:e}]};return r});(function(t,e){if(typeof module=="object"&&module.exports){module.exports=e(require("./shape"))}else{var r=t.Zdog;r.RoundedRect=e(r.Shape)}})(this,function t(e){var r=e.subclass({width:1,height:1,cornerRadius:.25,closed:false});r.prototype.setPath=function(){var t=this.width/2;var e=this.height/2;var r=Math.min(t,e);var i=Math.min(this.cornerRadius,r);var n=t-i;var o=e-i;var s=[{x:n,y:-e},{arc:[{x:t,y:-e},{x:t,y:-o}]}];if(o){s.push({x:t,y:o})}s.push({arc:[{x:t,y:e},{x:n,y:e}]});if(n){s.push({x:-n,y:e})}s.push({arc:[{x:-t,y:e},{x:-t,y:o}]});if(o){s.push({x:-t,y:-o})}s.push({arc:[{x:-t,y:-e},{x:-n,y:-e}]});if(n){s.push({x:n,y:-e})}this.path=s};return r});(function(t,e){if(typeof module=="object"&&module.exports){module.exports=e(require("./shape"))}else{var r=t.Zdog;r.Ellipse=e(r.Shape)}})(this,function t(e){var r=e.subclass({diameter:1,width:undefined,height:undefined,quarters:4,closed:false});r.prototype.setPath=function(){var t=this.width!=undefined?this.width:this.diameter;var e=this.height!=undefined?this.height:this.diameter;var r=t/2;var i=e/2;this.path=[{x:0,y:-i},{arc:[{x:r,y:-i},{x:r,y:0}]}];if(this.quarters>1){this.path.push({arc:[{x:r,y:i},{x:0,y:i}]})}if(this.quarters>2){this.path.push({arc:[{x:-r,y:i},{x:-r,y:0}]})}if(this.quarters>3){this.path.push({arc:[{x:-r,y:-i},{x:0,y:-i}]})}};return r});(function(t,e){if(typeof module=="object"&&module.exports){module.exports=e(require("./boilerplate"),require("./shape"))}else{var r=t.Zdog;r.Polygon=e(r,r.Shape)}})(this,function t(e,r){var i=r.subclass({sides:3,radius:.5});var n=e.TAU;i.prototype.setPath=function(){this.path=[];for(var t=0;t