ShapeJS

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var uiParams=[{name:"image",desc:"Image",type:"uri",defaultVal:"https:\/\/static1.sw-cdn.net\/files\/cms\/shapejs\/images\/icosa_sphere_part_thin20.png"},{name:"xcoff",desc:"xcoff",type:"double","rangeMin":-1,"rangeMax":2,"step":0.05,defaultVal:1,onChange:"transformChanged"},{name:"ycoff",desc:"ycoff",type:"double","rangeMin":-1,"rangeMax":2,"step":0.05,defaultVal:1,onChange:"transformChanged"},{name:"zrot",desc:"zrot",type:"double","rangeMin":-180,"rangeMax":180,"step":0.05,defaultVal:0,onChange:"transformChanged"},{name:"text",desc:"Text",type:"string",defaultVal:"Shapeways",onChange:"textChanged"}];var vs=0.2*MM;var thickness=2.1*MM;var radius=77.5*MM-thickness/2;var rimHeight=2*MM;var footHeight=2.5*MM;var footThickness=2*MM;var footRatio=1/3;var TAU=(Math.sqrt(5)+1)/2;var PI=Math.PI;var overlap=0.5*MM;var TORAD=PI/180;var imgTrans;var imgBox;var scene;function getIcosahedralSymmetry(){var v5=new Vector3d(1,0,TAU);var v3=new Vector3d(0,1/TAU,TAU);var p35=new Vector3d();p35.cross(v3,v5);p35.normalize();var splanes=new Array();var count=0;splanes[count++]=new ReflectionSymmetry.getPlane(new Vector3d(-1,0,0),0.0);splanes[count++]=new ReflectionSymmetry.getPlane(new Vector3d(0,-1,0),0.0);splanes[count++]=new ReflectionSymmetry.getPlane(p35,0.0);return new ReflectionSymmetry(splanes);}
function getSphereBend(fixedRadius,bendAmount,offset){var center=fixedRadius*fixedRadius/bendAmount;var radius=Math.sqrt(center*center+fixedRadius*fixedRadius);var cp=new CompositeTransform();cp.add(new PlaneReflection(new Vector3d(0,0,1),new Vector3d(0,0,offset)));cp.add(new SphereInversion(new Vector3d(0,0,-center+offset),radius));return cp;}
function getImageReflection(xsize,ysize){var splanes=new Array();var count=0;splanes[count++]=new ReflectionSymmetry.getPlane(new Vector3d(-1,0,0),xsize);splanes[count++]=new ReflectionSymmetry.getPlane(new Vector3d(0,-1,0),ysize);splanes[count++]=new ReflectionSymmetry.getPlane(new Vector3d(1,0,0),xsize);splanes[count++]=new ReflectionSymmetry.getPlane(new Vector3d(0,1,0),ysize);return new ReflectionSymmetry(splanes);}
function getImage(radius,thickness,path){var s=radius/Math.sqrt(1+1.0/(TAU*TAU));var v5=new Vector3d(s/TAU,0,s);var v3=new Vector3d(0,s/(TAU*TAU),s);var union=new Union();var correction=1.11;var ypnt=v3.y*correction;var xpnt=v5.x*correction;var image=loadImage(path);var grid=image.getGrid();var threshold=0.5;var filled=getPercentFilled(grid,threshold);var thick=thickness;if(filled<0.20){thick=1.4*thickness;}
imgBox=new Image3D(grid,xpnt,ypnt,thick,0.1*MM);imgBox.setUseGrayscale(false);imgBox.setImagePlace(Image3D.IMAGE_PLACE_TOP);imgBox.setBaseThickness(0.0);imgBox.setBaseThreshold(threshold);imgBox.setBlurWidth(0.1*MM);union.add(imgBox);union.setTransform(getSphereBend(v5.x,radius-v5.z,v5.z));return union;}
function getPercentFilled(grid,threshold){var w=grid.getWidth();var h=grid.getHeight();var filled=0;var threshatt=65636/2;for(var y=0;y<h;y++){for(var x=0;x<w;x++){var att=grid.getAttribute(x,y);if(att<threshatt){filled++;}}}
return filled/(w*h);}
function getRim(loc,sphereRadius,height,thickness){var outer=new Cylinder(new Vector3d(0,loc,0),new Vector3d(0,loc-height,0),sphereRadius+thickness/2);var inner=new Cylinder(new Vector3d(0,loc+overlap,0),new Vector3d(0,loc-height-overlap,0),sphereRadius-thickness/2);var rim=new Subtraction(outer,inner);rim.setBlend(0.1*MM);return rim;}
function getFoot(loc,sphereRadius,height,thickness){var outer=new Cylinder(new Vector3d(0,loc,0),new Vector3d(0,loc-height,0),sphereRadius+thickness/2);var inner=new Cylinder(new Vector3d(0,loc+overlap,0),new Vector3d(0,loc-height-overlap,0),sphereRadius-thickness/2);var foot=new Subtraction(outer,inner);foot.setBlend(0.1*MM);return foot;}
function transformChanged(args){var s=radius/Math.sqrt(1+1.0/(TAU*TAU));var v5=new Vector3d(s/TAU,0,s);var v3=new Vector3d(0,s/(TAU*TAU),s);var correction=1.1;var ypnt=v3.y*correction;var xpnt=v5.x;imgTrans=new CompositeTransform();imgTrans.add(getImageReflection(xpnt/2,ypnt/2));imgTrans.add(new Rotation(0,0,1,args.zrot*TORAD));imgTrans.add(new Translation(args.xcoff*xpnt/2,args.ycoff*ypnt/2,v5.z));imgBox.setTransform(imgTrans);}
function makeDefaultScene(){var dr=5*MM;var src=new Box(dr,dr,dr);var bounds=new Bounds(-dr,dr,-dr,dr,-dr,dr);scene=new Scene(src,bounds);var ef=0.1;scene.setVoxelSize(vs);scene.setMeshErrorFactor(ef);scene.setMaxPartsCount(1);return scene;}
function main(args){scene=makeDefaultScene();var path=args.image;if(path===undefined)return scene;var a=2*radius+2*thickness;var image=getImage(radius,thickness,path);transformChanged(args);var reflectedImage=new Union();reflectedImage.add(image);reflectedImage.setTransform(getIcosahedralSymmetry());var cut_loc=-radius/1.5;var plane=new Plane(new Vector3d(0,-1,0),new Vector3d(0,cut_loc,0));var bowl=new Subtraction(reflectedImage,plane);var rim_loc=cut_loc+rimHeight;var rim_radius=radius*0.75;var rim=getRim(rim_loc,rim_radius,rimHeight,thickness);var foot_loc=-radius+3.25*MM;var foot=getFoot(foot_loc,radius*footRatio,footHeight,footThickness);var combined=new Union(bowl,rim);combined.add(foot);return new Scene(combined,new Bounds(-a,a,-a,a,-a,a),vs);}