def debug_output(dwgw=None, paths=None, segments=None, isects=None):
dwg = Drawing(paths=paths, name="debug.png")
dwg.draw_segments(segments, rgb=(0, 0, 0), width=1)
dup_segments = []
segments.sort()
for s1, s2 in zip(segments, segments[1:]):
if s1 == s2:
dup_segments.append(s1)
dwg.draw_segments(dup_segments, rgb=(1, 0, 0), width=7)
if dwgw is not None:
with dwg.style(rgb=(0, 0, 1), width=2, dash=[5, 5]):
dwg.rectangle(0, 0, dwgw, dwgw)
dwg.stroke()
if isects is not None:
dwg.circle_points(isects, radius=9, rgb=(0, .5, 0), width=3)
dwg.finish()
def debug_world(paths, width, height):
dwg = Drawing(paths=paths, name="debug_world", bg=None)
# Gray rectangle: the desired visible canvas.
with dwg.style(rgb=(.95, .95, .95)):
dwg.rectangle(0, 0, width, height)
dwg.fill()
# Reference grid.
llx, lly = dwg.llx, dwg.lly
urx = llx + dwg.width
ury = lly + dwg.height
with dwg.style(rgb=(.5, 1, 1), width=1, dash=[5, 5], dash_offset=7.5):
for xmin in tick_range(llx, urx, 20):
dwg.move_to(xmin, lly)
dwg.line_to(xmin, ury)
dwg.stroke()
for ymin in tick_range(lly, ury, 20):
dwg.move_to(llx, ymin)
dwg.line_to(urx, ymin)
dwg.stroke()
with dwg.style(rgb=(.5, 1, 1), width=1):
dwg.circle_points([Point(0, 0)], radius=10)
for xmaj in tick_range(llx, urx, 100):
dwg.move_to(xmaj, lly)
dwg.line_to(xmaj, ury)
dwg.stroke()
for ymaj in tick_range(lly, ury, 100):
dwg.move_to(llx, ymaj)
dwg.line_to(urx, ymaj)
dwg.stroke()
# The paths themselves.
dwg.draw_paths(paths, width=1, rgb=(1, 0, 0))
dwg.finish()
print("Wrote debug_world.png")