/** This is a test of cylindrical embossing for 3-D printing. */

res = 254/inch

h = 1 inch
r = 1 inch

// Test on a cylinder
// v = callJava["frink.graphics.VoxelArray", "makeCylinder", [0,0,h/2 res,0,0,-h/2 res, r res]]

// Test on a cuboid
/*v = callJava["frink.graphics.VoxelArray", "cube", [-r/2 res, r/2 res,
                                                   -r/2 res, r/2 res,
                                                   -h/2 res, h/2 res, true]] 
*/

// Or a sphere
v = callJava["frink.graphics.VoxelArray", "makeSphere", [r res]]

// Load an image
//img = new image["file:Frink100.png"]
//img = new image["file:aiFabric-knitPattern_depth2.jpg"]
img = new image["https://frinklang.org/frinksamp/FrinkRules.png"]

// Or create one from text
/*g = new graphics
g.font["SansSerif", "bold", 10]
g.text["Frink Rules!",0,0]
img = g.toImage[undef, 200]
img.show[]
*/

// 2-pixel cube tool for testing
pixelTool = newJava["frink.graphics.VoxelArray", [0,2,0,2,0,2,true]]

//emboss = v.sphericalEmboss[img, 0,0,0, 180 deg, 360 deg, 0 deg, 90 deg, 0, 192, -.2 cm res, 0 cm res, .5 cm res, 0 cm res, pixelTool, 0, 0, 0]
emboss = v.sphericalEmboss[img, 0,0,0, 180 deg, 360 deg, 0 deg, 180 deg, 0, 255, 0 cm res, 0 cm res, 0 cm res, -.5 cm res, pixelTool, 0, 0, 0]

// Comment in one of these lines to test various uses of the embossed data.
//v.remove[emboss]    // Test removal
v = v.union[emboss]   // Test addition
//v = emboss            // Just show embossing.

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

filename = "sphericalEmbossGray.obj"
print["Writing $filename..."]
w = new Writer[filename]
w.println[v.toObjFormat["v", 1/(res mm)]]
w.close[]
println["done."]