def OnWhiz(self, evt): self.x += numerix.pi / 15 self.y += numerix.pi / 20 z = numerix.sin(self.x) + numerix.cos(self.y) self.im.set_array(z) zmax = numerix.max(numerix.max(z)) - ERR_TOL ymax_i, xmax_i = numerix.nonzero(numerix.greater_equal(z, zmax)) if self.im.origin == 'upper': ymax_i = z.shape[0] - ymax_i self.lines[0].set_data(xmax_i, ymax_i) self.canvas.draw()
def OnWhiz(self,evt): self.x += numerix.pi/15 self.y += numerix.pi/20 z = numerix.sin(self.x) + numerix.cos(self.y) self.im.set_array(z) zmax = numerix.max(numerix.max(z))-ERR_TOL ymax_i, xmax_i = numerix.nonzero( numerix.greater_equal(z, zmax)) if self.im.origin == 'upper': ymax_i = z.shape[0]-ymax_i self.lines[0].set_data(xmax_i,ymax_i) self.canvas.draw()
def init_plot_data(self): a = self.fig.add_subplot(111) x = numerix.arange(120.0)*2*numerix.pi/60.0 y = numerix.arange(100.0)*2*numerix.pi/50.0 self.x, self.y = meshgrid(x, y) z = numerix.sin(self.x) + numerix.cos(self.y) self.im = a.imshow( z, cmap=cm.jet)#, interpolation='nearest') zmax = numerix.max(numerix.max(z))-ERR_TOL ymax_i, xmax_i = numerix.nonzero( numerix.greater_equal(z, zmax)) if self.im.origin == 'upper': ymax_i = z.shape[0]-ymax_i self.lines = a.plot(xmax_i,ymax_i,'ko') self.toolbar.update() # Not sure why this is needed - ADS
def _draw_mathtext(self, gc, x, y, s, prop, angle): if DEBUG: print 'backend_cairo.RendererCairo.%s()' % _fn_name() # mathtext using the gtk/gdk method try: import cairo.numpy except: verbose.report_error( "cairo.numpy module required for _draw_mathtext()") return size = prop.get_size_in_points() width, height, fonts = math_parse_s_ft2font(s, self.dpi.get(), size) if angle == 90: width, height = height, width x -= width y -= height imw, imh, s = fonts[0].image_as_str() N = imw * imh # a numpixels by num fonts array Xall = zeros((N, len(fonts)), typecode=UInt8) for i, font in enumerate(fonts): if angle == 90: font.horiz_image_to_vert_image() # <-- Rotate imw, imh, s = font.image_as_str() Xall[:, i] = fromstring(s, UInt8) # get the max alpha at each pixel Xs = numerix.max(Xall, 1) # convert it to it's proper shape Xs.shape = imh, imw pa = zeros(shape=(imh, imw, 4), typecode=UInt8) rgb = gc.get_rgb() pa[:, :, 0] = int(rgb[0] * 255) pa[:, :, 1] = int(rgb[1] * 255) pa[:, :, 2] = int(rgb[2] * 255) pa[:, :, 3] = Xs surface = cairo.numpy.surface_create_for_array(pa) gc.ctx.translate(x, y) gc.ctx.show_surface(surface, imw, imh)
def _draw_mathtext(self, gc, x, y, s, prop, angle): if DEBUG: print 'backend_cairo.RendererCairo.%s()' % _fn_name() # mathtext using the gtk/gdk method try: import cairo.numpy except: verbose.report_error("cairo.numpy module required for _draw_mathtext()") return size = prop.get_size_in_points() width, height, fonts = math_parse_s_ft2font( s, self.dpi.get(), size) if angle==90: width, height = height, width x -= width y -= height imw, imh, s = fonts[0].image_as_str() N = imw*imh # a numpixels by num fonts array Xall = zeros((N,len(fonts)), typecode=UInt8) for i, font in enumerate(fonts): if angle == 90: font.horiz_image_to_vert_image() # <-- Rotate imw, imh, s = font.image_as_str() Xall[:,i] = fromstring(s, UInt8) # get the max alpha at each pixel Xs = numerix.max(Xall,1) # convert it to it's proper shape Xs.shape = imh, imw pa = zeros(shape=(imh,imw,4), typecode=UInt8) rgb = gc.get_rgb() pa[:,:,0] = int(rgb[0]*255) pa[:,:,1] = int(rgb[1]*255) pa[:,:,2] = int(rgb[2]*255) pa[:,:,3] = Xs surface = cairo.numpy.surface_create_for_array(pa) gc.ctx.translate (x,y) gc.ctx.show_surface (surface, imw, imh)
def draw_mathtext(self, gc, x, y, s, prop, angle): size = prop.get_size_in_points() width, height, fonts = math_parse_s_ft2font(s, self.dpi.get(), size) if angle == 90: width, height = height, width x = int(x) y = int(y) rgb = gc.get_rgb() #rgba = (rgb[0], rgb[1], rgb[2], gc.get_alpha()) imw, imh, s = fonts[0].image_as_str() N = imw * imh # a numpixels by num fonts array Xall = zeros((N, len(fonts)), typecode=UInt8) for i, font in enumerate(fonts): if angle == 90: font.horiz_image_to_vert_image() # <-- Rotate imw, imh, s = font.image_as_str() Xall[:, i] = fromstring(s, UInt8) # get the max alpha at each pixel Xs = numerix.max(Xall, 1) # convert it to it's proper shape Xs.shape = imh, imw pb = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, has_alpha=1, bits_per_sample=8, width=imw, height=imh) try: pa = pb.get_pixels_array() except AttributeError: pa = pb.pixel_array except RuntimeError, exc: # pygtk was not compiled with Numeric Python support print >> sys.stderr, 'Error:', exc return
def _draw_mathtext(self, gc, x, y, s, prop, angle): size = prop.get_size_in_points() width, height, fonts = math_parse_s_ft2font(s, self.dpi.get(), size) if angle == 90: width, height = height, width x -= width y -= height imw, imh, s = fonts[0].image_as_str() N = imw * imh # a numpixels by num fonts array Xall = zeros((N, len(fonts)), typecode=UInt8) for i, font in enumerate(fonts): if angle == 90: font.horiz_image_to_vert_image() # <-- Rotate imw, imh, s = font.image_as_str() Xall[:, i] = fromstring(s, UInt8) # get the max alpha at each pixel Xs = numerix.max(Xall, 1) # convert it to it's proper shape Xs.shape = imh, imw pb = gtk.gdk.Pixbuf( gtk.gdk.COLORSPACE_RGB, #has_alpha=1, bits_per_sample=8, width=imw, height=imh) has_alpha=True, bits_per_sample=8, width=imw, height=imh) try: pa = pb.get_pixels_array() except AttributeError: pa = pb.pixel_array except RuntimeError, exc: # 'pygtk was not compiled with Numeric Python support' verbose.report_error('mathtext not supported: %s' % exc) return
def _draw_mathtext(self, gc, x, y, s, prop, angle): size = prop.get_size_in_points() width, height, fonts = math_parse_s_ft2font( s, self.dpi.get(), size) if angle==90: width, height = height, width x -= width y -= height imw, imh, s = fonts[0].image_as_str() N = imw*imh # a numpixels by num fonts array Xall = zeros((N,len(fonts)), typecode=UInt8) for i, font in enumerate(fonts): if angle == 90: font.horiz_image_to_vert_image() # <-- Rotate imw, imh, s = font.image_as_str() Xall[:,i] = fromstring(s, UInt8) # get the max alpha at each pixel Xs = numerix.max(Xall,1) # convert it to it's proper shape Xs.shape = imh, imw pb=gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, #has_alpha=1, bits_per_sample=8, width=imw, height=imh) has_alpha=True, bits_per_sample=8, width=imw, height=imh) try: pa = pb.get_pixels_array() except AttributeError: pa = pb.pixel_array except RuntimeError, exc: # 'pygtk was not compiled with Numeric Python support' verbose.report_error('mathtext not supported: %s' % exc) return