/** This creates a signet ring for 3-D printing.
*/

r = 254 * 2/in

innerCircumference = size10ring
innerDiameter = innerCircumference / pi
innerRadius = innerDiameter / 2

ringThickness = 2 mm
ringWidth = 5 mm

centerRadius = innerRadius + (ringThickness / 2)
outerRadius = centerRadius + (ringThickness / 2)

signetThickness = 3 mm
signetDiameter = 15 mm
signetRadius = signetDiameter / 2
embossDepth = 2 mm

// Make the ring
v = callJava["frink.graphics.VoxelArray", "makeSupertoroid", [centerRadius r, ringThickness/2 r, ringThickness/2 r, ringWidth/2 r, .5, 1]]

v1 = v.rotate[0,0,0,1,0,0,90 deg]

signet = callJava["frink.graphics.VoxelArray", "makeTaperedCylinder", [0,0,centerRadius r,0,0,(centerRadius+signetThickness) r, signetRadius r, signetRadius r]]

img = new image["https://frinklang.org/frinksamp/tnslogo.png"]
pixelTool = newJava["frink.graphics.VoxelArray", [0,2,0,2,0,2,true]]

emboss = signet.planarEmboss[img, 0, .6 mm r, .89 signetDiameter r, .89 signetDiameter r, 0, 250, 0, 0, embossDepth r, 0, pixelTool, 0, 0, 0]

v = v1.union[signet]
v.remove[emboss]

v.projectX[undef].show["X"]
v.projectY[undef].show["Y"]
v.projectZ[undef].show["Z"]

outfile = "signetRing.obj"
w = new Writer[outfile]
print["Writing $outfile..."]
w.println[v.toObjFormat["signetRing", 1/(r mm)]]
w.close[]
println["done."]