def _drawRandom(self):
boundingBox = [(0.0, 0.0), (TABLE_WIDTH, TABLE_LENGTH)]
while True:
if self._state == self.HALT:
return
drawer = drawers[random.randint(0, len(drawers)-1)]
sand = sandableFactory(drawer, TABLE_WIDTH, TABLE_LENGTH, BALL_SIZE, TABLE_UNITS)
params = Params(sand.editor)
params.randomize(sand.editor)
try:
chains = sand.generate(params)
pchains = Chains.convertUnits(chains, TABLE_UNITS, MACHINE_UNITS)
pchains = Chains.bound(chains, boundingBox)
t, d, p = Chains.estimateMachiningTime(pchains, MACHINE_FEED, MACHINE_ACCEL)
if DRAW_TIME_MIN <= t <= DRAW_TIME_MAX:
break
logging.info("Tried %s but time was %d:%02d" % (sand, int(t/60), int(t) % 60))
except Exception as e:
logging.warning("Tried %s but failed with %s" % (sand, e))
logging.info("Drawing %s, estimated time %d:%02d" % (sand, int(t/60), int(t) % 60))
History.save(params, drawer, chains, "lastdemo")
with mach.mach() as e:
e.run(chains, boundingBox, MACHINE_FEED, TABLE_UNITS, MACHINE_UNITS)
def drawPage():
cstuff = cgistuff('Draw')
form = request.forms
# Check to see if params are being loaded from a file
params = None
action = form.action
if action == 'load' or action == 'Load':
name = form._loadname
params = History.load(name)
sandable = params.sandable
else:
sandable = form.method or request.query.method or drawers[0]
# Take action
editor, errors = '', None
if sandable in drawers:
sand = sandableFactory(sandable, TABLE_WIDTH, TABLE_LENGTH, BALL_SIZE,
TABLE_UNITS)
d = Dialog(sand.editor, form, params)
params = d.getParams()
action = d.getAction()
if action == 'random' or action == 'Random!':
params.randomize(sand.editor)
# Create the path image
boundingBox = [(0.0, 0.0), (TABLE_WIDTH, TABLE_LENGTH)]
# Generate the chains
memoize = Memoize()
if CACHE_ENABLE and memoize.match(sandable, params):
chains = memoize.chains()
else:
try:
chains = sand.generate(params)
except SandException as e:
errors = str(e)
chains = []
Chains.saveImage(chains, boundingBox, IMAGE_FILE, IMAGE_WIDTH,
IMAGE_HEIGHT, IMAGE_TYPE)
memoize.save(sandable, params, chains)
# If 'Draw in Sand' has been requested then do it!
if action == 'doit' or action == 'Draw in Sand!':
with schedapi.schedapi() as sched:
sched.demoHalt()
History.history(params, sandable, chains)
with mach.mach() as e:
e.run(chains, boundingBox, MACHINE_FEED, TABLE_UNITS,
MACHINE_UNITS)
# If 'Abort' has been requested stop the drawing
if action == 'abort' or action == 'Abort!':
with schedapi.schedapi() as sched:
sched.demoHalt()
with mach.mach() as e:
e.stop()
# If 'Save' has been requested save the drawing's parameters
if action == 'save' or action == 'Save':
name = form._name.strip()
if any(k in name for k in './\\~'):
errors = '"%s" cannot contain path characters ("./\\~")' % name
elif not len(name):
errors = 'No name was specified'
else:
History.save(params, sandable, chains, name)
# If 'Export' has been requested, export to an SVG file
if action == 'export' or action == 'Export':
name = form._name.strip()
if any(k in name for k in './\\~'):
errors = '"%s" cannot contain path characters ("./\\~")' % name
elif not len(name):
errors = 'No name was specified'
else:
Chains.makeSVG(chains, "%s%s.svg" % (DATA_PATH, name))
# Estimate the amount of time it will take to draw
chains = Chains.bound(chains, boundingBox)
chains = Chains.convertUnits(chains, TABLE_UNITS, MACHINE_UNITS)
seconds, distance, pointCount = Chains.estimateMachiningTime(
chains, MACHINE_FEED, MACHINE_ACCEL)
help = '' if not sand.__doc__ else ' <span class="navigation"><a href="dhelp/%s" target="_blank">Help!</a></span>' % sandable
drawinfo = 'Draw time %s %.1f %s Points %d' % (
timedelta(0, int(seconds)),
convert.convert(distance, MACHINE_UNITS,
TABLE_UNITS), TABLE_UNITS, pointCount)
# Make the form
editor = template('draw-form',
sandable=sandable,
dialog=d.html(),
drawinfo=drawinfo,
help=help)
else:
errors = '"%s" is not a valid drawing method!' % sandable
# The hash is used to ensure that cached images are correct
imagefile = "%s?%s" % (IMAGE_FILE, params.hash())
return [
cstuff.standardTopStr(),
template('draw-page',
sandables=drawers,
sandable=sandable,
imagefile=imagefile,
width=IMAGE_WIDTH,
height=IMAGE_HEIGHT,
errors=errors,
editor=editor),
cstuff.endBodyStr()
]