def test_clipping_full():
p = Path([[1e30, 1e30]] * 5)
simplified = list(p.iter_segments(clip=[0, 0, 100, 100]))
assert simplified == []
p = Path([[50, 40], [75, 65]], [1, 2])
simplified = list(p.iter_segments(clip=[0, 0, 100, 100]))
assert ([(list(x), y) for x, y in simplified] == [([50, 40], 1),
([75, 65], 2)])
p = Path([[50, 40]], [1])
simplified = list(p.iter_segments(clip=[0, 0, 100, 100]))
assert ([(list(x), y) for x, y in simplified] == [([50, 40], 1)])
def test_clipping_full():
p = Path([[1e30, 1e30]] * 5)
simplified = list(p.iter_segments(clip=[0, 0, 100, 100]))
assert simplified == []
p = Path([[50, 40], [75, 65]], [1, 2])
simplified = list(p.iter_segments(clip=[0, 0, 100, 100]))
assert ([(list(x), y) for x, y in simplified] ==
[([50, 40], 1), ([75, 65], 2)])
p = Path([[50, 40]], [1])
simplified = list(p.iter_segments(clip=[0, 0, 100, 100]))
assert ([(list(x), y) for x, y in simplified] ==
[([50, 40], 1)])
def test_start_with_moveto():
# Should be entirely clipped away to a single MOVETO
data = b"""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"""
verts = np.frombuffer(base64.decodebytes(data), dtype='<i4')
verts = verts.reshape((len(verts) // 2, 2))
path = Path(verts)
segs = path.iter_segments(transforms.IdentityTransform(),
clip=(0.0, 0.0, 100.0, 100.0))
segs = list(segs)
assert len(segs) == 1
assert segs[0][1] == Path.MOVETO
def test_start_with_moveto():
# Should be entirely clipped away to a single MOVETO
data = b"""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"""
verts = np.frombuffer(base64.decodebytes(data), dtype='<i4')
verts = verts.reshape((len(verts) // 2, 2))
path = Path(verts)
segs = path.iter_segments(transforms.IdentityTransform(),
clip=(0.0, 0.0, 100.0, 100.0))
segs = list(segs)
assert len(segs) == 1
assert segs[0][1] == Path.MOVETO
def draw_path(self,
gc: GraphicsContextBase,
path: Path,
transform,
rgbFace=None):
# if path.codes is not None:
self.__drawing_context.begin_path()
for vertex, code in path.iter_segments(simplify=False, curves=True):
if code == Path.MOVETO:
point = transform.transform_point(vertex)
self.__drawing_context.move_to(point[0],
self.__height - point[1])
elif code == Path.LINETO:
point = transform.transform_point(vertex)
self.__drawing_context.line_to(point[0],
self.__height - point[1])
elif code == Path.CLOSEPOLY:
self.__drawing_context.close_path()
elif code == Path.CURVE4:
cpoint0 = transform.transform_point(vertex[0:2])
cpoint1 = transform.transform_point(vertex[2:4])
endpoint = transform.transform_point(vertex[4:])
self.__drawing_context.bezier_curve_to(
cpoint0[0], self.__height - cpoint0[1], cpoint1[0],
self.__height - cpoint1[1], endpoint[0],
self.__height - endpoint[1])
elif code == Path.CURVE3:
cpoint0 = transform.transform_point(vertex[0:2])
endpoint = transform.transform_point(vertex[2:])
self.__drawing_context.quadratic_curve_to(
cpoint0[0], self.__height - cpoint0[1], endpoint[0],
self.__height - endpoint[1])
if rgbFace is not None:
self.__drawing_context.fill_style = self.__setup_color(rgbFace)
self.__drawing_context.fill()
self.__drawing_context.line_width = self.points_to_pixels(
gc.get_linewidth())
self.__drawing_context.stroke_style = self.__setup_color(gc.get_rgb())
self.__drawing_context.stroke()
data = np.load(vertfilename)
verts = data['vertices']
path = Path(verts, closed = True)
print len(path)
path.should_simplify = True
path.simplify_threshold = 10.0
# <codecell>
vertices = []
codes = []
for (vertex, code) in path.iter_segments(simplify = True):
vertices.append(vertex.tolist())
codes.append(code)
# <codecell>
cleanpath = Path(vertices, codes)
len(cleanpath)
# <codecell>
codes[-1] = Path.CLOSEPOLY
# <codecell>
bbox = cleanpath.get_extents()
y = np.sin(x)
fig = plt.figure()
ax = fig.add_subplot(111)
line1 = ax.plot(x,y)
patch1 = patches.PathPatch(path1, facecolor='red', edgecolor = 'blue', alpha=0.3, lw=2)
patch2 = patches.PathPatch(path2, facecolor='red', edgecolor = 'blue', alpha=0.3, lw=2)
patch2_rot = patches.PathPatch(path2_rot, facecolor = 'red', edgecolor = 'blue', alpha = 0.3, lw=2)
pc = x0,y0
epatch1 = patches.Ellipse(pc, w, h, angle=0, ec='blue', fc='blue', alpha=0.2)
epatch2 = patches.Ellipse(pc, w, h, angle=45, ec='blue', fc='blue', alpha=0.2)
epatch3 = patches.FancyBboxPatch((0,0), w, h)
for a,b in path1.iter_segments():
print a,b
ax.add_patch(epatch1)
ax.add_patch(epatch2)
ax.add_patch(epatch3)
ax.add_patch(patch1)
ax.add_patch(patch2)
ax.add_patch(patch2_rot)
ax.set_xlim(-5,5)
ax.set_ylim(-5,5)
plt.show()
verts = [
(0.0,0.0), # P0