class RendererGR(RendererBase):
"""
Handles drawing/rendering operations using GR
"""
texd = maxdict(50) # a cache of tex image rasters
def __init__(self, dpi, width, height):
self.dpi = dpi
if __version__[0] >= '2':
self.nominal_fontsize = 0.001625
default_dpi = 100
else:
self.nominal_fontsize = 0.0013
default_dpi = 80
self.width = float(width) * dpi / default_dpi
self.height = float(height) * dpi / default_dpi
self.mathtext_parser = MathTextParser('agg')
self.texmanager = TexManager()
def configure(self):
aspect_ratio = self.width / self.height
if aspect_ratio > 1:
rect = np.array([0, 1, 0, 1.0 / aspect_ratio])
self.size = self.width
else:
rect = np.array([0, aspect_ratio, 0, 1])
self.size = self.height
mwidth, mheight, width, height = gr.inqdspsize()
if width / (mwidth / 0.0256) < 200:
mwidth *= self.width / width
gr.setwsviewport(*rect * mwidth)
else:
gr.setwsviewport(*rect * 0.192)
gr.setwswindow(*rect)
gr.setviewport(*rect)
gr.setwindow(0, self.width, 0, self.height)
def draw_path(self, gc, path, transform, rgbFace=None):
path = transform.transform_path(path)
points = path.vertices
codes = path.codes
bbox = gc.get_clip_rectangle()
if bbox is not None and not np.any(np.isnan(bbox.bounds)):
x, y, w, h = bbox.bounds
clrt = np.array([x, x + w, y, y + h])
else:
clrt = np.array([0, self.width, 0, self.height])
gr.setviewport(*clrt / self.size)
gr.setwindow(*clrt)
if rgbFace is not None and len(points) > 2:
color = gr.inqcolorfromrgb(rgbFace[0], rgbFace[1], rgbFace[2])
gr.settransparency(rgbFace[3])
gr.setcolorrep(color, rgbFace[0], rgbFace[1], rgbFace[2])
gr.setfillintstyle(gr.INTSTYLE_SOLID)
gr.setfillcolorind(color)
gr.drawpath(points, codes, fill=True)
lw = gc.get_linewidth()
if lw != 0:
rgba = gc.get_rgb()[:4]
color = gr.inqcolorfromrgb(rgba[0], rgba[1], rgba[2])
gr.settransparency(rgba[3])
gr.setcolorrep(color, rgba[0], rgba[1], rgba[2])
if isinstance(gc._linestyle, str):
gr.setlinetype(linetype[gc._linestyle])
gr.setlinewidth(lw)
gr.setlinecolorind(color)
gr.drawpath(points, codes, fill=False)
def draw_image(self, gc, x, y, im):
if hasattr(im, 'as_rgba_str'):
h, w, s = im.as_rgba_str()
img = np.fromstring(s, np.uint32)
img.shape = (h, w)
elif len(im.shape) == 3 and im.shape[2] == 4 and im.dtype == np.uint8:
img = im.view(np.uint32)
img.shape = im.shape[:2]
h, w = img.shape
else:
type_info = repr(type(im))
if hasattr(im, 'shape'):
type_info += ' shape=' + repr(im.shape)
if hasattr(im, 'dtype'):
type_info += ' dtype=' + repr(im.dtype)
warnings.warn('Unsupported image type ({}). Please report this at https://github.com/sciapp/python-gr/issues'.format(type_info))
return
gr.drawimage(x, x + w, y + h, y, w, h, img)
def draw_mathtext(self, x, y, angle, Z):
h, w = Z.shape
img = np.zeros((h, w), np.uint32)
for i in range(h):
for j in range(w):
img[i, j] = (255 - Z[i, j]) << 24
a = int(angle)
if a == 90:
gr.drawimage(x - h, x, y, y + w, h, w,
np.resize(np.rot90(img, 1), (h, w)))
elif a == 180:
gr.drawimage(x - w, x, y - h, y, w, h, np.rot90(img, 2))
elif a == 270:
gr.drawimage(x, x + h, y - w, y, h, w,
np.resize(np.rot90(img, 3), (h, w)))
else:
gr.drawimage(x, x + w, y, y + h, w, h, img)
def draw_tex(self, gc, x, y, s, prop, angle, ismath='TeX!', mtext=None):
size = prop.get_size_in_points()
key = s, size, self.dpi, angle, self.texmanager.get_font_config()
im = self.texd.get(key)
if im is None:
Z = self.texmanager.get_grey(s, size, self.dpi)
Z = np.array(255.0 - Z * 255.0, np.uint8)
self.draw_mathtext(x, y, angle, Z)
def _draw_mathtext(self, gc, x, y, s, prop, angle):
ox, oy, width, height, descent, image, used_characters = \
self.mathtext_parser.parse(s, self.dpi, prop)
self.draw_mathtext(x, y, angle, 255 - np.asarray(image))
def draw_text(self, gc, x, y, s, prop, angle, ismath=False, mtext=None):
if ismath:
self._draw_mathtext(gc, x, y, s, prop, angle)
else:
x, y = gr.wctondc(x, y)
fontsize = prop.get_size_in_points()
rgba = gc.get_rgb()[:4]
color = gr.inqcolorfromrgb(rgba[0], rgba[1], rgba[2])
gr.settransparency(rgba[3])
gr.setcolorrep(color, rgba[0], rgba[1], rgba[2])
gr.setcharheight(fontsize * self.nominal_fontsize)
gr.settextcolorind(color)
if angle != 0:
gr.setcharup(-np.sin(angle * np.pi/180),
np.cos(angle * np.pi/180))
else:
gr.setcharup(0, 1)
gr.text(x, y, s)
def flipy(self):
return False
def get_canvas_width_height(self):
return self.width, self.height
def get_text_width_height_descent(self, s, prop, ismath):
if ismath == 'TeX':
fontsize = prop.get_size_in_points()
w, h, d = self.texmanager.get_text_width_height_descent(
s, fontsize, renderer=self)
return w, h, d
if ismath:
ox, oy, width, height, descent, fonts, used_characters = \
self.mathtext_parser.parse(s, self.dpi, prop)
return width, height, descent
# family = prop.get_family()
# weight = prop.get_weight()
# style = prop.get_style()
fontsize = prop.get_size_in_points()
gr.setcharheight(fontsize * self.nominal_fontsize)
gr.setcharup(0, 1)
(tbx, tby) = gr.inqtextext(0, 0, s)
width, height, descent = tbx[1], tby[2], 0.2 * tby[2]
return width, height, descent
def new_gc(self):
return GraphicsContextGR()
def points_to_pixels(self, points):
return points
class RendererGR(RendererBase):
"""
Handles drawing/rendering operations using GR
"""
texd = maxdict(50) # a cache of tex image rasters
def __init__(self, dpi, width, height):
self.dpi = dpi
self.width = float(width) * dpi / 80
self.height = float(height) * dpi / 80
self.mathtext_parser = MathTextParser('agg')
self.texmanager = TexManager()
def configure(self):
aspect_ratio = self.width / self.height
if aspect_ratio > 1:
rect = np.array([0, 1, 0, 1.0 / aspect_ratio])
self.size = self.width
else:
rect = np.array([0, aspect_ratio, 0, 1])
self.size = self.height
mwidth, mheight, width, height = gr.inqdspsize()
if width / (mwidth / 0.0256) < 200:
mwidth *= self.width / width
gr.setwsviewport(*rect * mwidth)
else:
gr.setwsviewport(*rect * 0.192)
gr.setwswindow(*rect)
gr.setviewport(*rect)
gr.setwindow(0, self.width, 0, self.height)
def draw_path(self, gc, path, transform, rgbFace=None):
path = transform.transform_path(path)
points = path.vertices
codes = path.codes
bbox = gc.get_clip_rectangle()
if bbox is not None:
x, y, w, h = bbox.bounds
clrt = np.array([x, x + w, y, y + h])
else:
clrt = np.array([0, self.width, 0, self.height])
gr.setviewport(*clrt / self.size)
gr.setwindow(*clrt)
if rgbFace is not None and len(points) > 2:
color = gr.inqcolorfromrgb(rgbFace[0], rgbFace[1], rgbFace[2])
gr.settransparency(rgbFace[3])
gr.setcolorrep(color, rgbFace[0], rgbFace[1], rgbFace[2])
gr.setfillintstyle(gr.INTSTYLE_SOLID)
gr.setfillcolorind(color)
gr.drawpath(points, codes, fill=True)
lw = gc.get_linewidth()
if lw != 0:
rgba = gc.get_rgb()[:4]
color = gr.inqcolorfromrgb(rgba[0], rgba[1], rgba[2])
gr.settransparency(rgba[3])
gr.setcolorrep(color, rgba[0], rgba[1], rgba[2])
if isinstance(gc._linestyle, str):
gr.setlinetype(linetype[gc._linestyle])
gr.setlinewidth(lw)
gr.setlinecolorind(color)
gr.drawpath(points, codes, fill=False)
def draw_image(self, gc, x, y, im):
h, w, s = im.as_rgba_str()
img = np.fromstring(s, np.uint32)
img.shape = (h, w)
gr.drawimage(x, x + w, y + h, y, w, h, img)
def draw_mathtext(self, x, y, angle, Z):
h, w = Z.shape
img = np.zeros((h, w), np.uint32)
for i in range(h):
for j in range(w):
img[i, j] = (255 - Z[i, j]) << 24
a = int(angle)
if a == 90:
gr.drawimage(x - h, x, y, y + w, h, w,
np.resize(np.rot90(img, 1), (h, w)))
elif a == 180:
gr.drawimage(x - w, x, y - h, y, w, h, np.rot90(img, 2))
elif a == 270:
gr.drawimage(x, x + h, y - w, y, h, w,
np.resize(np.rot90(img, 3), (h, w)))
else:
gr.drawimage(x, x + w, y, y + h, w, h, img)
def draw_tex(self, gc, x, y, s, prop, angle, ismath='TeX!', mtext=None):
size = prop.get_size_in_points()
key = s, size, self.dpi, angle, self.texmanager.get_font_config()
im = self.texd.get(key)
if im is None:
Z = self.texmanager.get_grey(s, size, self.dpi)
Z = np.array(255.0 - Z * 255.0, np.uint8)
self.draw_mathtext(x, y, angle, Z)
def _draw_mathtext(self, gc, x, y, s, prop, angle):
ox, oy, width, height, descent, image, used_characters = \
self.mathtext_parser.parse(s, self.dpi, prop)
self.draw_mathtext(x, y, angle, 255 - image.as_array())
def draw_text(self, gc, x, y, s, prop, angle, ismath=False, mtext=None):
if ismath:
self._draw_mathtext(gc, x, y, s, prop, angle)
else:
x, y = gr.wctondc(x, y)
s = s.replace(u'\u2212', '-')
fontsize = prop.get_size_in_points()
rgba = gc.get_rgb()[:4]
color = gr.inqcolorfromrgb(rgba[0], rgba[1], rgba[2])
gr.settransparency(rgba[3])
gr.setcolorrep(color, rgba[0], rgba[1], rgba[2])
gr.setcharheight(fontsize * 0.0013)
gr.settextcolorind(color)
if angle != 0:
gr.setcharup(-np.sin(angle * np.pi/180),
np.cos(angle * np.pi/180))
else:
gr.setcharup(0, 1)
gr.text(x, y, s)
def flipy(self):
return False
def get_canvas_width_height(self):
return self.width, self.height
def get_text_width_height_descent(self, s, prop, ismath):
if ismath == 'TeX':
fontsize = prop.get_size_in_points()
w, h, d = self.texmanager.get_text_width_height_descent(
s, fontsize, renderer=self)
return w, h, d
if ismath:
ox, oy, width, height, descent, fonts, used_characters = \
self.mathtext_parser.parse(s, self.dpi, prop)
return width, height, descent
# family = prop.get_family()
# weight = prop.get_weight()
# style = prop.get_style()
fontsize = prop.get_size_in_points()
gr.setcharheight(fontsize * 0.0013)
gr.setcharup(0, 1)
(tbx, tby) = gr.inqtextext(0, 0, s)
width, height, descent = tbx[1], tby[2], 0
return width, height, descent
def new_gc(self):
return GraphicsContextGR()
def points_to_pixels(self, points):
return points
class RendererGR(RendererBase):
"""
Handles drawing/rendering operations using GR
"""
texd = maxdict(50) # a cache of tex image rasters
def __init__(self, dpi):
self.dpi = dpi
self.width = 640.0 * dpi / 80
self.height = 480.0 * dpi / 80
mwidth, mheight, width, height = gr.inqdspsize()
if (width / (mwidth / 0.0256) < 200):
mwidth *= self.width / width
gr.setwsviewport(0, mwidth, 0, mwidth * 0.75)
else:
gr.setwsviewport(0, 0.192, 0, 0.144)
gr.setwswindow(0, 1, 0, 0.75)
gr.setviewport(0, 1, 0, 0.75)
gr.setwindow(0, self.width, 0, self.height)
self.mathtext_parser = MathTextParser('agg')
self.texmanager = TexManager()
def draw_path(self, gc, path, transform, rgbFace=None):
path = transform.transform_path(path)
points = path.vertices
codes = path.codes
bbox = gc.get_clip_rectangle()
if bbox is not None:
x, y, w, h = bbox.bounds
clrt = np.array([x, x + w, y, y + h])
else:
clrt = np.array([0, self.width, 0, self.height])
gr.setviewport(*clrt/self.width)
gr.setwindow(*clrt)
if rgbFace is not None and len(points) > 2:
color = gr.inqcolorfromrgb(rgbFace[0], rgbFace[1], rgbFace[2])
gr.settransparency(rgbFace[3])
gr.setcolorrep(color, rgbFace[0], rgbFace[1], rgbFace[2])
gr.setfillintstyle(gr.INTSTYLE_SOLID)
gr.setfillcolorind(color)
gr.drawpath(points, codes, fill=True)
lw = gc.get_linewidth()
if lw != 0:
rgba = gc.get_rgb()[:4]
color = gr.inqcolorfromrgb(rgba[0], rgba[1], rgba[2])
gr.settransparency(rgba[3])
gr.setcolorrep(color, rgba[0], rgba[1], rgba[2])
if type(gc._linestyle) is unicode:
gr.setlinetype(linetype[gc._linestyle])
gr.setlinewidth(lw)
gr.setlinecolorind(color)
gr.drawpath(points, codes, fill=False)
def draw_image(self, gc, x, y, im):
h, w, s = im.as_rgba_str()
img = np.fromstring(s, np.uint32)
img.shape = (h, w)
gr.drawimage(x, x + w, y + h, y, w, h, img)
def draw_mathtext(self, x, y, angle, Z):
h, w = Z.shape
img = np.zeros((h, w), np.uint32)
for i in range(h):
for j in range(w):
img[i, j] = (255 - Z[i, j]) << 24
a = int(angle)
if a == 90:
gr.drawimage(x - h, x, y, y + w, h, w,
np.resize(np.rot90(img, 1), (h, w)))
elif a == 180:
gr.drawimage(x - w, x, y - h, y, w, h, np.rot90(img, 2))
elif a == 270:
gr.drawimage(x, x + h, y - w, y, h, w,
np.resize(np.rot90(img, 3), (h, w)))
else:
gr.drawimage(x, x + w, y, y + h, w, h, img)
def draw_tex(self, gc, x, y, s, prop, angle, ismath='TeX!', mtext=None):
size = prop.get_size_in_points()
key = s, size, self.dpi, angle, self.texmanager.get_font_config()
im = self.texd.get(key)
if im is None:
Z = self.texmanager.get_grey(s, size, self.dpi)
Z = np.array(255.0 - Z * 255.0, np.uint8)
self.draw_mathtext(x, y, angle, Z)
def _draw_mathtext(self, gc, x, y, s, prop, angle):
ox, oy, width, height, descent, image, used_characters = \
self.mathtext_parser.parse(s, self.dpi, prop)
self.draw_mathtext(x, y, angle, 255 - image.as_array())
def draw_text(self, gc, x, y, s, prop, angle, ismath=False, mtext=None):
if ismath:
self._draw_mathtext(gc, x, y, s, prop, angle)
else:
x, y = gr.wctondc(x, y)
s = s.replace(u'\u2212', '-')
fontsize = prop.get_size_in_points()
rgba = gc.get_rgb()[:4]
color = gr.inqcolorfromrgb(rgba[0], rgba[1], rgba[2])
gr.settransparency(rgba[3])
gr.setcolorrep(color, rgba[0], rgba[1], rgba[2])
gr.setcharheight(fontsize * 0.0013)
gr.settextcolorind(color)
if angle != 0:
gr.setcharup(-np.sin(angle * np.pi/180),
np.cos(angle * np.pi/180))
else:
gr.setcharup(0, 1)
gr.text(x, y, s.encode("latin-1"))
def flipy(self):
return False
def get_canvas_width_height(self):
return self.width, self.height
def get_text_width_height_descent(self, s, prop, ismath):
if ismath == 'TeX':
fontsize = prop.get_size_in_points()
w, h, d = self.texmanager.get_text_width_height_descent(
s, fontsize, renderer=self)
return w, h, d
if ismath:
ox, oy, width, height, descent, fonts, used_characters = \
self.mathtext_parser.parse(s, self.dpi, prop)
return width, height, descent
# family = prop.get_family()
# weight = prop.get_weight()
# style = prop.get_style()
s = s.replace(u'\u2212', '-').encode("latin-1")
fontsize = prop.get_size_in_points()
gr.setcharheight(fontsize * 0.0013)
gr.setcharup(0, 1)
(tbx, tby) = gr.inqtextext(0, 0, s)
width, height, descent = tbx[1], tby[2], 0
return width, height, descent
def new_gc(self):
return GraphicsContextGR()
def points_to_pixels(self, points):
return points