inkstitch/lib/stitch_plan/trim.py

24 wiersze
769 B
Python

def process_trim(color_block, next_stitch):
"""Handle the "trim after" checkbox.
DST (and maybe other formats?) has no actual TRIM instruction.
Instead, 3 sequential JUMPs cause the machine to trim the thread.
To support both DST and other formats, we'll add a TRIM and two
JUMPs. The TRIM will be converted to a JUMP by libembroidery
if saving to DST, resulting in the 3-jump sequence.
"""
delta = next_stitch - color_block.last_stitch
delta = delta * (1/4.0)
pos = color_block.last_stitch
for i in xrange(3):
pos += delta
color_block.add_stitch(pos.x, pos.y, jump=True)
# first one should be TRIM instead of JUMP
color_block.stitches[-3].jump = False
color_block.stitches[-3].trim = True