NopSCADlib/scripts/render.py

113 lines
3.8 KiB
Python
Executable File

#!/usr/bin/env python
#
# NopSCADlib Copyright Chris Palmer 2018
# nop.head@gmail.com
# hydraraptor.blogspot.com
#
# This file is part of NopSCADlib.
#
# NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
# GNU General Public License as published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
# without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with NopSCADlib.
# If not, see <https://www.gnu.org/licenses/>.
#
#! Renders STL and DXF files to PNG for inclusion in the build instructions.
from __future__ import print_function
from set_config import *
from exports import bom_to_parts
import os
import openscad
from tests import do_cmd, update_image, colour_scheme, background
from deps import mtime
from colorama import init
import json
from tmpdir import *
def usage():
print("\nusage:\n\trender [target_config] - Render images of the stl and dxf files.");
sys.exit(1)
def render(target, type):
#
# Make the target directory
#
top_dir = set_config(target, usage)
tmp_dir = mktmpdir(top_dir)
target_dir = top_dir + type + 's'
bom_dir = top_dir + 'bom'
if not os.path.isdir(target_dir):
os.makedirs(target_dir)
#
# Find all the parts
#
parts = bom_to_parts(bom_dir, type)
#
# Read the json bom to get the colours
#
bom_file = bom_dir + "/bom.json"
with open(bom_file) as json_file:
flat_bom = json.load(json_file)
things = { 'stl' : 'printed', 'dxf' : 'routed' }[type]
colours = {}
for ass in flat_bom:
for part in ass[things]:
obj = ass[things][part]
if "colour" in obj:
colours[part] = obj["colour"]
#
# Remove unused png files
#
for file in os.listdir(target_dir):
if file.endswith('.png'):
if not file[:-4] + '.' + type in parts:
print("Removing %s" % file)
os.remove(target_dir + '/' + file)
#
# Render the parts
#
for part in parts:
part_file = target_dir + '/' + part
png_name = target_dir + '/' + part[:-4] + '.png'
#
# make a file to import the stl
#
if mtime(part_file) > mtime(png_name):
png_maker_name = tmp_dir + "/png.scad"
pp1 = [0, 146/255, 0]
colour = pp1
if part in colours:
colour = colours[part]
if not '[' in colour:
colour = '"' + colour + '"'
with open(png_maker_name, "w") as f:
f.write('color(%s) import("%s");\n' % (colour, reltmp(part_file, target)))
cam = "--camera=0,0,0,70,0,315,500" if type == 'stl' else "--camera=0,0,0,0,0,0,500"
render = "--preview" if type == 'stl' or colour != pp1 else "--render"
tmp_name = tmp_dir + '/' + part[:-4] + '.png'
openscad.run(colour_scheme, "--projection=p", "--imgsize=4096,4096", cam, render, "--autocenter", "--viewall", "-o", tmp_name, png_maker_name);
do_cmd(("magick "+ tmp_name + " -trim -resize 280x280 -background %s -gravity Center -extent 280x280 -bordercolor %s -border 10 %s"
% (background, background, tmp_name)).split())
update_image(tmp_name, png_name)
os.remove(png_maker_name)
#
# Remove tmp dir
#
rmtmpdir(tmp_dir)
if __name__ == '__main__':
init()
if len(sys.argv) > 2: usage()
target = sys.argv[1] if len(sys.argv) > 1 else None
render(target, 'stl')
render(target, 'dxf')