def __init__(self, points, data, vt=(0, 0, 1, 1), clean_nan=False):
if clean_nan:
mask = ~np.isnan(points).any(axis=1)
points = points[mask]
data = data[mask]
self._points = points
self._data = data
self.vt = vt
self.shaper = glyphset.ToPoint(glyphset.idx(0), glyphset.idx(1))
if not is_identity_transform(vt):
self.projected = np.empty_like(points, dtype=np.int32)
_projectRects(vt, points, self.projected)
# points must be at least 1 wide for general compatability
self.projected[:, 2] = self.projected[:, 0] + 1
self.projected[:, 3] = self.projected[:, 1] + 1
else:
self.projected = points
def __init__(self, points, data, vt=(0, 0, 1, 1), clean_nan=False):
if clean_nan:
mask = ~np.isnan(points).any(axis=1)
points = points[mask]
data = data[mask]
self._points = points
self._data = data
self.vt = vt
self.shaper = glyphset.ToPoint(glyphset.idx(0), glyphset.idx(1))
if not is_identity_transform(vt):
self.projected = np.empty_like(points, dtype=np.int32)
_projectRects(vt, points, self.projected)
# points must be at least 1 wide for general compatability
self.projected[:, 2] = self.projected[:, 0]+1
self.projected[:, 3] = self.projected[:, 1]+1
else:
self.projected = points
def project(self, viewxform):
"""Project the points found in the glyphset according to the view transform.
viewxform -- convert canvas space to pixel space [tx,ty,sx,sy]
returns a new glyphset with projected points and associated info values
"""
points = self.points()
out = np.empty_like(points, dtype=np.int32)
_projectRects(viewxform, points, out)
# Ensure visilibity, make sure w/h are always at least one
# TODO: There is probably a more numpy-ish way to do this...
for i in xrange(0, out.shape[0]):
if out[i, 0] == out[i, 2]:
out[i, 2] += 1
if out[i, 1] == out[i, 3]:
out[i, 3] += 1
return Glyphset(out, self.data(), Literals(self.shaper.code))
