def getNewGeos(self, geos):
# TODO use intersect class and update_start_end_points
new_geos = Geos([])
for geo in geos.abs_iter():
if isinstance(geo, LineGeo):
new_geos.extend(self.breakLineGeo(geo))
elif isinstance(geo, ArcGeo):
new_geos.extend(self.breakArcGeo(geo))
else:
new_geos.append(geo)
return new_geos
def __init__(self, shape=None):
if shape is None:
return
self.shape = shape
self.start, self.angle = self.shape.get_start_end_points(True, True)
self.end = self.start
self.geos = Geos([])
self.make_start_moves()
def make_own_cutter_compensation(self):
toolwidth = self.shape.parentLayer.getToolRadius()
self.geos = Geos([])
offtype = "in" if self.shape.cut_cor == 42 else "out"
offshape = offShapeClass(parent=self.shape,
offset=toolwidth,
offtype=offtype)
self.geos += offshape.rawoff
def breakArcGeo(self, arcGeo):
"""
Try to break passed arcGeo with any of the shapes on a break layers.
Will break arcGeos recursively.
@return: The list of geometries after breaking (arcGeo itself if no breaking happened)
"""
newGeos = Geos([])
for breakLayer in self.breakLayers:
for breakShape in breakLayer.shapes.not_disabled_iter():
intersections = self.intersectArcGeometry(arcGeo, breakShape)
if len(intersections) == 2:
(near, far) = self.classifyIntersections(arcGeo, intersections)
logger.debug("Arc %s broken from (%f, %f) to (%f, %f)" % (arcGeo.toShortString(), near.x, near.y, far.x, far.y))
newGeos.extend(self.breakArcGeo(ArcGeo(Ps=arcGeo.Ps, Pe=near, O=arcGeo.O, r=arcGeo.r, s_ang=arcGeo.s_ang, direction=arcGeo.ext)))
newGeos.append(BreakGeo(near, far, breakShape.axis3_mill_depth, breakShape.f_g1_plane, breakShape.f_g1_depth))
newGeos.extend(self.breakArcGeo(ArcGeo(Ps=far, Pe=arcGeo.Pe, O=arcGeo.O, r=arcGeo.r, e_ang=arcGeo.e_ang, direction=arcGeo.ext)))
return newGeos
return [arcGeo]
def breakLineGeo(self, lineGeo):
"""
Try to break passed lineGeo with any of the shapes on a break layers.
Will break lineGeos recursively.
@return: The list of geometries after breaking (lineGeo itself if no breaking happened)
"""
newGeos = Geos([])
for breakLayer in self.breakLayers:
for breakShape in breakLayer.shapes.not_disabled_iter():
intersections = self.intersectLineGeometry(lineGeo, breakShape)
if len(intersections) == 2:
(near, far) = self.classifyIntersections(lineGeo, intersections)
logger.debug("Line %s broken from (%f, %f) to (%f, %f)" % (lineGeo.to_short_string(), near.x, near.y, far.x, far.y))
newGeos.extend(self.breakLineGeo(LineGeo(lineGeo.Ps, near)))
newGeos.append(BreakGeo(near, far, breakShape.axis3_mill_depth, breakShape.f_g1_plane, breakShape.f_g1_depth))
newGeos.extend(self.breakLineGeo(LineGeo(far, lineGeo.Pe)))
return newGeos
return [lineGeo]
def geos_preprocessing(self, parent):
"""
Do all the preprocessing required in order to have working offset algorithm.
@param parent: The parent shape including the geometries to be offsetted.
"""
self.geos = Geos([])
for geo in parent.geos:
if isinstance(geo, LineGeo):
self.geos.append(OffLineGeo().abscopy(geo, parent))
elif isinstance(geo, ArcGeo):
self.geos.append(OffArcGeo().abscopy(geo, parent))
else:
logger.error("Should not be here")
logger.debug(self.geos)
self.make_shape_ccw()
self.join_colinear_lines()
def make_start_moves(self):
"""
This function called to create the start move. It will
be generated based on the given values for start and angle.
"""
self.geos = Geos([])
if g.config.machine_type == 'drag_knife':
self.make_swivelknife_move()
return
# Get the start rad. and the length of the line segment at begin.
start_rad = self.shape.parentLayer.start_radius
# Get tool radius based on tool diameter.
tool_rad = self.shape.parentLayer.getToolRadius()
# Calculate the starting point with and without compensation.
start = self.start
angle = self.angle
if self.shape.cut_cor == 40:
self.append(RapidPos(start))
elif self.shape.cut_cor != 40 and not g.config.vars.Cutter_Compensation[
"done_by_machine"]:
toolwidth = self.shape.parentLayer.getToolRadius()
offtype = "in" if self.shape.cut_cor == 42 else "out"
offshape = offShapeClass(parent=self.shape,
offset=toolwidth,
offtype=offtype)
if len(offshape.rawoff) > 0:
start, angle = offshape.rawoff[0].get_start_end_points(
True, True)
self.append(RapidPos(start))
self.geos += offshape.rawoff
# Cutting Compensation Left
elif self.shape.cut_cor == 41:
# Center of the Starting Radius.
Oein = start.get_arc_point(angle + pi / 2, start_rad + tool_rad)
# Start Point of the Radius
Ps_ein = Oein.get_arc_point(angle + pi, start_rad + tool_rad)
# Start Point of the straight line segment at begin.
Pg_ein = Ps_ein.get_arc_point(angle + pi / 2, start_rad)
# Get the dive point for the starting contour and append it.
start_ein = Pg_ein.get_arc_point(angle, tool_rad)
self.append(RapidPos(start_ein))
# generate the Start Line and append it including the compensation.
start_line = LineGeo(start_ein, Ps_ein)
self.append(start_line)
# generate the start rad. and append it.
start_rad = ArcGeo(Ps=Ps_ein,
Pe=start,
O=Oein,
r=start_rad + tool_rad,
direction=1)
self.append(start_rad)
# Cutting Compensation Right
elif self.shape.cut_cor == 42:
# Center of the Starting Radius.
Oein = start.get_arc_point(angle - pi / 2, start_rad + tool_rad)
# Start Point of the Radius
Ps_ein = Oein.get_arc_point(angle + pi, start_rad + tool_rad)
# Start Point of the straight line segment at begin.
Pg_ein = Ps_ein.get_arc_point(angle - pi / 2, start_rad)
# Get the dive point for the starting contour and append it.
start_ein = Pg_ein.get_arc_point(angle, tool_rad)
self.append(RapidPos(start_ein))
# generate the Start Line and append it including the compensation.
start_line = LineGeo(start_ein, Ps_ein)
self.append(start_line)
# generate the start rad. and append it.
start_rad = ArcGeo(Ps=Ps_ein,
Pe=start,
O=Oein,
r=start_rad + tool_rad,
direction=0)
self.append(start_rad)
def make_own_cutter_compensation(self):
toolwidth = self.shape.parentLayer.getToolRadius()
geos = Geos([])
direction = -1 if self.shape.cut_cor == 41 else 1
if self.shape.closed:
end, end_dir = self.shape.get_start_end_points(False, False)
end_proj = Point(direction * end_dir.y, -direction * end_dir.x)
prv_Pe = end + toolwidth * end_proj
else:
prv_Pe = None
for geo_nr, geo in enumerate(self.shape.geos.abs_iter()):
start, start_dir = geo.get_start_end_points(True, False)
end, end_dir = geo.get_start_end_points(False, False)
start_proj = Point(direction * start_dir.y,
-direction * start_dir.x)
end_proj = Point(direction * end_dir.y, -direction * end_dir.x)
Ps = start + toolwidth * start_proj
Pe = end + toolwidth * end_proj
if Ps == Pe:
continue
if prv_Pe:
r = geo.Ps.distance(Ps)
d = (prv_Pe - geo.Ps).to3D().cross_product(
(Ps - geo.Ps).to3D()).z
if direction * d > 0 and prv_Pe != Ps:
geos.append(
ArcGeo(Ps=prv_Pe, Pe=Ps, O=geo.Ps, r=r, direction=d))
geos[-1].geo_nr = geo_nr
# else:
# geos.append(LineGeo(Ps=prv_Pe, Pe=Ps))
if isinstance(geo, LineGeo):
geos.append(LineGeo(Ps, Pe))
geos[-1].geo_nr = geo_nr
elif isinstance(geo, ArcGeo):
O = geo.O
r = O.distance(Ps)
geos.append(ArcGeo(Ps=Ps, Pe=Pe, O=O, r=r, direction=geo.ext))
geos[-1].geo_nr = geo_nr
# TODO other geos are not supported; disable them in gui for this option
# else:
# geos.append(geo)
prv_Pe = Pe
tot_length = 0
for geo in geos.abs_iter():
tot_length += geo.length
reorder_shape = False
for start_geo_nr in range(len(geos)):
# if shape is not closed we may only remove shapes from the start
last_geo_nr = start_geo_nr if self.shape.closed else 0
geos_adj = deepcopy(geos[start_geo_nr:]) + deepcopy(
geos[:last_geo_nr])
new_geos = Geos([])
i = 0
while i in range(len(geos_adj)):
geo = geos_adj[i]
intersections = []
for j in range(i + 1, len(geos_adj)):
intersection = Intersect.get_intersection_point(
geos_adj[j], geos_adj[i])
if intersection and intersection != geos_adj[i].Ps:
intersections.append([j, intersection])
if len(intersections) > 0:
intersection = intersections[-1]
change_end_of_geo = True
if i == 0 and intersection[0] >= len(geos_adj) // 2:
geo.update_start_end_points(True, intersection[1])
geos_adj[intersection[0]].update_start_end_points(
False, intersection[1])
if len(intersections) > 1:
intersection = intersections[-2]
else:
change_end_of_geo = False
i += 1
if change_end_of_geo:
geo.update_start_end_points(False, intersection[1])
i = intersection[0]
geos_adj[i].update_start_end_points(
True, intersection[1])
else:
i += 1
# TODO
# if len(new_geos) > 0 and not new_geos[-1].Pe.eq(geo.Ps, g.config.fitting_tolerance):
# break # geo is disconnected
new_geos.append(geo)
if new_geos[0].Ps == new_geos[-1].Pe:
break
new_length = 0
for geo in new_geos:
new_length += geo.length
if tot_length * g.config.vars.Cutter_Compensation['min_length_considered']\
<= new_length <= tot_length * g.config.vars.Cutter_Compensation['max_length_considered'] and\
(not g.config.vars.Cutter_Compensation['direction_maintained'] or
not self.shape.closed or self.shape.isDirectionOfGeosCCW(new_geos) != self.shape.cw):
self.append(RapidPos(new_geos[0].Ps))
for geo in new_geos:
if geo.Ps != geo.Pe:
self.append(geo)
reorder_shape = True
break
if reorder_shape and self.shape.closed:
# we do not reorder the original shape if it's not closed
self.shape.geos = Geos(
self.shape.geos[geos[start_geo_nr].geo_nr:] +
self.shape.geos[:geos[start_geo_nr].geo_nr])
if len(self.geos) == 0:
self.append(RapidPos(self.start))
