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# SPDX-License-Identifier: GPL-2.0-or-later
import bpy
def export(filepath, face_data, colors, width, height, opacity):
with open(filepath, 'w', encoding='utf-8') as file:
for text in get_file_parts(face_data, colors, width, height, opacity):
file.write(text)
def get_file_parts(face_data, colors, width, height, opacity):
yield from header(width, height)
if opacity > 0.0:
name_by_color = {}
yield from prepare_colors(colors, name_by_color)
yield from draw_colored_polygons(face_data, name_by_color, width, height)
yield from draw_lines(face_data, width, height)
yield from footer()
def header(width, height):
yield "%!PS-Adobe-3.0 EPSF-3.0\n"
yield f"%%Creator: Blender {bpy.app.version_string}\n"
yield "%%Pages: 1\n"
yield "%%Orientation: Portrait\n"
yield f"%%BoundingBox: 0 0 {width} {height}\n"
yield f"%%HiResBoundingBox: 0.0 0.0 {width:.4f} {height:.4f}\n"
yield "%%EndComments\n"
yield "%%Page: 1 1\n"
yield "0 0 translate\n"
yield "1.0 1.0 scale\n"
yield "0 0 0 setrgbcolor\n"
yield "[] 0 setdash\n"
yield "1 setlinewidth\n"
yield "1 setlinejoin\n"
yield "1 setlinecap\n"
def prepare_colors(colors, out_name_by_color):
for i, color in enumerate(colors):
name = f"COLOR_{i}"
yield "/%s {" % name
out_name_by_color[color] = name
yield "gsave\n"
yield "%.3g %.3g %.3g setrgbcolor\n" % color
yield "fill\n"
yield "grestore\n"
yield "0 setgray\n"
yield "} def\n"
def draw_colored_polygons(face_data, name_by_color, width, height):
for uvs, color in face_data:
yield from draw_polygon_path(uvs, width, height)
yield "closepath\n"
yield "%s\n" % name_by_color[color]
def draw_lines(face_data, width, height):
for uvs, _ in face_data:
yield from draw_polygon_path(uvs, width, height)
yield "closepath\n"
yield "stroke\n"
def draw_polygon_path(uvs, width, height):
yield "newpath\n"
for j, uv in enumerate(uvs):
uv_scale = (uv[0] * width, uv[1] * height)
if j == 0:
yield "%.5f %.5f moveto\n" % uv_scale
else:
yield "%.5f %.5f lineto\n" % uv_scale
def footer():
yield "showpage\n"
yield "%%EOF\n"
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