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stl.py@a01a3fd32073 (annotated)

stl.py

Mon, 03 Apr 2017 19:40:06 +0200

author

mdd

date

Mon, 03 Apr 2017 19:40:06 +0200

changeset 9

a01a3fd32073

child 10

d26669bf424e

permissions

-rw-r--r--

precompile STL files with openscad

9 a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	1	import data, os, config, subprocess
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	2
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	3	OPENSCAD_MODULES = """
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	4	module tank(x, r, h) {
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	5	color("SteelBlue") render() { //rotate([90,0,0]) {
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	6	translate([x, r, r]) {
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	7	sphere(r = r); // bottom
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	8	cylinder(h = h-2*r, r = r);
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	9	}
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	10	translate([x, r, h-r]) {
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	11	sphere(r = r); // top
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	12	cylinder(h = r*1.4, r = r*0.25);
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	13	}
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	14	}
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	15	}
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	16
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	17	module spacer(x, r, rcyl, h) {
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	18	color("DarkGrey") render() { //rotate([90,0,0]) {
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	19	translate([x, r, rcyl]) {
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	20	difference() {
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	21	cylinder(h = h-2*rcyl, r = r);
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	22	cylinder(h = h-2*rcyl, r = r*0.8);
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	23	}
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	24	}
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	25	}
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	26	}
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	27	$fn = 25; // high detail per default
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	28	"""
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	29
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	30	def run_openscad(output):
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	31	if os.path.isfile(output):
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	32	print "skipping existing file %s" % output
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	33	return
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	34	print "rendering %s" % output
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	35	subprocess.check_call([
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	36	'openscad',
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	37	'-o',
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	38	output,
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	39	config.TMP_SCAD
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	40	])
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	41
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	42	def precompile_all_stl():
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	43	base = os.path.abspath('stl')
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	44	hmin = 9999
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	45	rmax = 0
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	46	for cyl in data.CYLINDER.keys():
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	47	with open(config.TMP_SCAD, "w") as fn:
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	48	fn.write(OPENSCAD_MODULES)
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	49	fn.write("tank(0, %f, %f);" % (
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	50	data.CYLINDER[cyl][0] / 2 * config.SCALE3D,
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	51	data.CYLINDER[cyl][1] * config.SCALE3D))
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	52	run_openscad(os.path.join(base,
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	53	'cylinder_' + cyl + '.stl'))
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	54	if data.CYLINDER[cyl][1] < hmin:
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	55	hmin = data.CYLINDER[cyl][1]
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	56	if data.CYLINDER[cyl][0] > rmax:
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	57	rmax = data.CYLINDER[cyl][0]
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	58
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	59	for pipe in data.PIPES:
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	60	with open(config.TMP_SCAD, "w") as fn:
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	61	fn.write(OPENSCAD_MODULES)
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	62	fn.write("spacer(0, %f, %f, %f);" % (
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	63	pipe[1] / 2 * config.SCALE3D,
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	64	rmax / 2 * config.SCALE3D,
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	65	hmin * config.SCALE3D))
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	66	run_openscad(os.path.join(base,
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	67	'spacer_' + pipe[0] + '.stl'))
a01a3fd32073 precompile STL files with openscad mdd parents: diff changeset	68