def __draw_lines_hide(self, gc, x, y, transform=None):
"""
x and y are equal length arrays, draw lines connecting each
point in x, y
"""
if debugPS: self._pswriter.write('% draw_lines \n')
if transform:
if transform.need_nonlinear():
x, y, mask = transform.nonlinear_only_numerix(x,
y,
returnMask=1)
else:
mask = ones(x.shape)
vec6 = transform.as_vec6_val()
a, b, c, d, tx, ty = vec6
sx, sy = get_vec6_scales(vec6)
start = 0
end = 1000
points = zip(x, y)
write = self._pswriter.write
write('gsave\n')
self.push_gc(gc)
write('[%f %f %f %f %f %f] concat\n' % (a, b, c, d, tx, ty))
while start < len(x):
# put moveto on all the bad data and on the first good
# point after the bad data
codes = where(mask[start:end + 1], 'l', 'm')
ind = nonzero(mask[start:end + 1] == 0) + 1
if ind[-1] >= len(codes):
ind = ind[:-1]
put(codes, ind, 'm')
thisx = x[start:end + 1]
thisy = y[start:end + 1]
to_draw = izip(thisx, thisy, codes)
if not to_draw:
break
ps = ['%1.3f %1.3f m' % to_draw.next()[:2]]
ps.extend(["%1.3f %1.3f %c" % tup for tup in to_draw])
# we don't want to scale the line width, etc so invert the
# scale for the stroke
ps.append('\ngsave %f %f scale stroke grestore\n' %
(1. / sx, 1. / sy))
write('\n'.join(ps))
start = end
end += 1000
write("grestore\n")
def __draw_lines_hide(self, gc, x, y, transform=None):
"""
x and y are equal length arrays, draw lines connecting each
point in x, y
"""
if debugPS: self._pswriter.write('% draw_lines \n')
if transform:
if transform.need_nonlinear():
x, y, mask = transform.nonlinear_only_numerix(x, y, returnMask=1)
else:
mask = ones(x.shape)
vec6 = transform.as_vec6_val()
a,b,c,d,tx,ty = vec6
sx, sy = get_vec6_scales(vec6)
start = 0
end = 1000
points = zip(x,y)
write = self._pswriter.write
write('gsave\n')
self.push_gc(gc)
write('[%f %f %f %f %f %f] concat\n'%(a,b,c,d,tx,ty))
while start < len(x):
# put moveto on all the bad data and on the first good
# point after the bad data
codes = where(mask[start:end+1], 'l', 'm')
ind = nonzero(mask[start:end+1]==0)+1
if ind[-1]>=len(codes):
ind = ind[:-1]
put(codes, ind, 'm')
thisx = x[start:end+1]
thisy = y[start:end+1]
to_draw = izip(thisx, thisy, codes)
if not to_draw:
break
ps = ['%1.3f %1.3f m' % to_draw.next()[:2]]
ps.extend(["%1.3f %1.3f %c" % tup for tup in to_draw])
# we don't want to scale the line width, etc so invert the
# scale for the stroke
ps.append('\ngsave %f %f scale stroke grestore\n'%(1./sx,1./sy))
write('\n'.join(ps))
start = end
end += 1000
write("grestore\n")