var params=[{name:"image",label:"Pattern Image",desc:"Image",type:"uri",defaultVal:"http:\/\/www.shapeways.com\/rrstatic\/img\/shapejs\/creator\/sw_logo.png"}];var voxelSize=0.05*MM;function makeImage(path,width,height,thickness){var img=new Image3D(path,width,height,thickness);img.setBaseThickness(0.0);img.setBlurWidth(0.5*voxelSize);img.setUseGrayscale(false);return img;} function main(args){var imageThickness=10*MM;var ringSize=19.76*MM;var ringThickness=1.5*MM;var ringWidth=2*MM;var bezelAngle=Math.PI/8;var bezelHeight=1.5*MM;var imagePath=args.image;var imageScale=0.95;var inRad=ringSize/2;var outRad=inRad+ringThickness;var By=inRad+bezelHeight;var sinA=Math.sin(bezelAngle);var BC=(Ay-By)*Math.tan(bezelAngle);var Ay=outRad/sinA;var Fy=Ay*sinA*sinA;var bezelBase=Fy;var bezelTop=By;var margin=0.2*MM;var gridWidth=2*outRad+2*margin;var gridHeight=2*bezelTop+2*margin;var Cx=(Ay-By)*Math.tan(bezelAngle);var Dx=Cx*(1+bezelHeight/(Ay-By));var cutR=inRad;var Ex=ringWidth/2+cutR;var dd=1*MM;var Ey=inRad-Math.sqrt(cutR*cutR-(Ex-Dx+dd)*(Ex-Dx+dd));var imageWidth=imageScale*Cx*2;var imageHeight=imageWidth;var image=makeImage(imagePath,imageWidth,imageHeight,imageThickness);var imageTransform=new CompositeTransform();imageTransform.add(new Rotation(new Vector3d(1,0,0),-Math.PI/2));imageTransform.add(new Translation(0,By,0));image.setTransform(imageTransform);var ringBase=new Sphere(outRad);var bezel=new Intersection();bezel.add(new Cone(new Vector3d(0,Ay,0),new Vector3d(0,-1,0),bezelAngle));bezel.add(new Plane(new Vector3d(0,1,0),bezelTop));bezel.add(new Plane(new Vector3d(0,-1,0),-bezelBase));bezel.setBlend(0.1*MM);var ring=new Union();ring.add(ringBase);ring.add(bezel);var cutoff=new Union();var rounding=0.2*MM;var gw=gridWidth;var gw2=gridWidth/2;cutoff.add(new Cylinder(new Vector3d(0,0,-gw2),new Vector3d(0,0,gw2),inRad));cutoff.add(new Cylinder(new Vector3d(-gw2,Ey,Ex),new Vector3d(gw2,Ey,Ex),cutR));cutoff.add(new Cylinder(new Vector3d(-gw2,Ey,-Ex),new Vector3d(gw2,Ey,-Ex),cutR));cutoff.add(new Box(0,-inRad,Ex+rounding/2,gw,2*(inRad+Ey),2*cutR));cutoff.add(new Box(0,-inRad,-Ex-rounding/2,gw,2*(inRad+Ey),2*cutR));cutoff.setBlend(rounding);var fullRing=new Subtraction(ring,cutoff);fullRing.setBlend(0.1*MM);var ringWithImage=new Subtraction(fullRing,image);var bounds=new Bounds(-gridWidth/2,gridWidth/2,-gridHeight/2,gridHeight/2,-gridWidth/2,gridWidth/2);var scene=new Scene(ringWithImage,bounds,voxelSize);scene.setName("SignetRing");return scene;}