def __init__(self, filename, anchor_x=0, anchor_y=0, bezier_points=BEZIER_POINTS, circle_points=CIRCLE_POINTS, rawdata=None):
"""Creates an SVG object from a .svg or .svgz file.
`filename`: str
The name of the file to be loaded.
`anchor_x`: float
The horizontal anchor position for scaling and rotations. Defaults to 0. The symbolic
values 'left', 'center' and 'right' are also accepted.
`anchor_y`: float
The vertical anchor position for scaling and rotations. Defaults to 0. The symbolic
values 'bottom', 'center' and 'top' are also accepted.
`bezier_points`: int
The number of line segments into which to subdivide Bezier splines. Defaults to 10.
`circle_points`: int
The number of line segments into which to subdivide circular and elliptic arcs.
Defaults to 10.
`rawdata`: string
Raw data string (you need to set a fake filename for cache anyway)
Defaults to None.
"""
self._tess = gluNewTess()
gluTessNormal(self._tess, 0, 0, 1)
gluTessProperty(self._tess, GLU_TESS_WINDING_RULE, GLU_TESS_WINDING_NONZERO)
self.filename = filename
self.rawdata = rawdata
self.bezier_points = bezier_points
self.circle_points = circle_points
self.bezier_coefficients = []
self.gradients = GradientContainer()
self.generate_disp_list()
self.anchor_x = anchor_x
self.anchor_y = anchor_y
def __init__(self,
filename,
anchor_x=0,
anchor_y=0,
bezier_points=BEZIER_POINTS,
circle_points=CIRCLE_POINTS,
rawdata=None):
"""Creates an SVG object from a .svg or .svgz file.
`filename`: str
The name of the file to be loaded.
`anchor_x`: float
The horizontal anchor position for scaling and rotations. Defaults to 0. The symbolic
values 'left', 'center' and 'right' are also accepted.
`anchor_y`: float
The vertical anchor position for scaling and rotations. Defaults to 0. The symbolic
values 'bottom', 'center' and 'top' are also accepted.
`bezier_points`: int
The number of line segments into which to subdivide Bezier splines. Defaults to 10.
`circle_points`: int
The number of line segments into which to subdivide circular and elliptic arcs.
Defaults to 10.
`rawdata`: string
Raw data string (you need to set a fake filename for cache anyway)
Defaults to None.
"""
self._tess = gluNewTess()
gluTessNormal(self._tess, 0, 0, 1)
gluTessProperty(self._tess, GLU_TESS_WINDING_RULE,
GLU_TESS_WINDING_NONZERO)
self.filename = filename
self.rawdata = rawdata
self.bezier_points = bezier_points
self.circle_points = circle_points
self.bezier_coefficients = []
self.gradients = GradientContainer()
self.generate_disp_list()
self.anchor_x = anchor_x
self.anchor_y = anchor_y
def _get_filled_path(self):
if self._filled_path:
return self._filled_path
self._tess = gluNewTess()
gluTessNormal(self._tess, 0, 0, 1)
gluTessProperty(self._tess, GLU_TESS_WINDING_RULE, GLU_TESS_WINDING_NONZERO)
tess_list = []
def tess_vertex(vertex):
self._tess_shape += list(vertex[0:2])
def tess_begin(which):
self._tess_style = which
self._tess_shape = []
def tess_end():
tess_list.append((self._tess_style, self._tess_shape))
def tess_error(code):
err = gluErrorString(code)
pymt_logger.warning('BezierPath: GLU Tesselation Error: %s' % str(err))
gluTessCallback(self._tess, GLU_TESS_VERTEX, tess_vertex)
gluTessCallback(self._tess, GLU_TESS_BEGIN, tess_begin)
gluTessCallback(self._tess, GLU_TESS_END, tess_end)
gluTessCallback(self._tess, GLU_TESS_ERROR, tess_error)
gluTessBeginPolygon(self._tess, None)
gluTessBeginContour(self._tess)
for x, y in zip(self._path[::2], self._path[1::2]):
v_data = (x, y, 0)
gluTessVertex(self._tess, v_data, v_data)
gluTessEndContour(self._tess)
gluTessEndPolygon(self._tess)
self._filled_path = tess_list
return tess_list
def __init__(self):
self.tess = gluNewTess()
self.primitives = [] # [[gl_type, vertices, idx]...]
self.vertices = [] # Vertices for the current shape
self.type = None # Type for the current shape
gl_mode_map = {
GL_TRIANGLE_FAN: 'triangle_fan',
GL_TRIANGLE_STRIP: 'triangle_strip',
GL_TRIANGLES: 'triangles',
GL_LINE_LOOP: 'line_loop'
}
def end_shape_handler():
curr_obj = [
gl_mode_map[self.type], self.vertices,
np.arange(len(self.vertices), dtype=np.uint32)
]
self.primitives.append(curr_obj)
def begin_shape_handler(x):
self.type = x
self.vertices = []
def vertex_handler(v):
self.vertices.append(v)
def combine_handler(new_vert, _, __):
return new_vert
# Register Callbacks
gluTessCallback(self.tess, GLU_TESS_VERTEX, vertex_handler)
gluTessCallback(self.tess, GLU_TESS_END, end_shape_handler)
gluTessCallback(self.tess, GLU_TESS_ERROR,
lambda x: print("Error", gluErrorString(x)))
gluTessCallback(self.tess, GLU_TESS_BEGIN, begin_shape_handler)
gluTessCallback(self.tess, GLU_TESS_COMBINE, combine_handler)
