def convert2Polyline(self, splineSegs):
"""Convert complex objects (SPLINE,ELLIPSE) to polylines"""
if self.type == "SPLINE":
# Convert to polyline
xyz = zip(self[10], self[20], self[30])
flag = int(self.get(70, 0))
closed = bool(flag & Entity.CLOSED)
periodic = bool(flag & Entity.PERIODIC)
rational = bool(flag & Entity.RATIONAL)
planar = bool(flag & Entity.PLANAR)
linear = bool(flag & Entity.LINEAR)
# print "\nSPLINE"
# print "closed=",closed
# print "periodic=",periodic
# print "rational=",rational
# print "planar=",planar
# print "linear=",linear
# for n in sorted(self.keys()): print n,"=",self[n]
knots = self[40]
xx, yy, zz = spline.spline2Polyline(xyz, int(self[71]), closed,
splineSegs, knots)
self[10] = xx
self[20] = yy
self[30] = zz
self[42] = 0 # bulge FIXME maybe I should use it
self.type = "LWPOLYLINE"
elif self.type == "ELLIPSE":
center = self.start()
major = self.point(1)
ratio = self.get(40, 1.0)
sPhi = self.get(41, 0.0)
ePhi = self.get(42, 2.0 * math.pi)
# minor length
major_length = major.normalize()
minor_length = ratio * major_length
xx = []
yy = []
if ePhi < sPhi: ePhi += 2.0 * math.pi
nseg = int((ePhi - sPhi) / math.pi * Entity.ELLIPSE_SEGMENTS)
dphi = (ePhi - sPhi) / float(nseg)
phi = sPhi
for i in range(nseg + 1):
vx = major_length * math.cos(phi)
vy = minor_length * math.sin(phi)
xx.append(vx * major[0] - vy * major[1] + center[0])
yy.append(vx * major[1] + vy * major[0] + center[1])
phi += dphi
self[10] = xx
self[20] = yy
self[42] = 0 # bulge FIXME maybe I should use it
self.type = "LWPOLYLINE"
self._initCache()
def convert2Polyline(self, splineSegs): """Convert complex objects (SPLINE,ELLIPSE) to polylines""" if self.type == "SPLINE": # Convert to polyline xyz = zip(self[10], self[20], self[30]) flag = int(self.get(70,0)) closed = bool(flag & Entity.CLOSED) periodic = bool(flag & Entity.PERIODIC) rational = bool(flag & Entity.RATIONAL) planar = bool(flag & Entity.PLANAR) linear = bool(flag & Entity.LINEAR) # print "\nSPLINE" # print "closed=",closed # print "periodic=",periodic # print "rational=",rational # print "planar=",planar # print "linear=",linear # for n in sorted(self.keys()): print n,"=",self[n] knots = self[40] xx,yy,zz = spline.spline2Polyline(xyz, int(self[71]), closed, splineSegs, knots) self[10] = xx self[20] = yy self[30] = zz self[42] = 0 # bulge FIXME maybe I should use it self.type = "LWPOLYLINE" elif self.type == "ELLIPSE": center = self.start() major = self.point(1) ratio = self.get(40,1.0) sPhi = self.get(41,0.0) ePhi = self.get(42,2.0*math.pi) # minor length major_length = major.normalize() minor_length = ratio*major_length xx = [] yy = [] if ePhi < sPhi: ePhi += 2.0*math.pi nseg = int((ePhi-sPhi) / math.pi * Entity.ELLIPSE_SEGMENTS) dphi = (ePhi-sPhi)/float(nseg) phi = sPhi for i in range(nseg+1): vx = major_length*math.cos(phi) vy = minor_length*math.sin(phi) xx.append(vx*major[0] - vy*major[1] + center[0]) yy.append(vx*major[1] + vy*major[0] + center[1]) phi += dphi self[10] = xx self[20] = yy self[42] = 0 # bulge FIXME maybe I should use it self.type = "LWPOLYLINE" self._initCache()