def __init__(self, hdulist, figure, rect):
self.hdulist = hdulist
self.figure = figure
self.axes = self._create_axes(rect)
#self.figure.add_axes(self.axes)
self.marker = None
self.display_changed = Signal()
self.xy_changed = Signal()
self.focus_released = Signal()
self._colormap = GrayscaleColorMap()
self._mpl_event_handlers = {}
self._interaction_context = None
self.number_of_images_displayed = 0
self.frame_number = None
def main():
img = create_test_image()
colormap = GrayscaleColorMap()
plt.subplot(1, 1, 1)
plt.subplots_adjust(left=0.15, bottom=0.25)
axcolor = 'lightgoldenrodyellow'
contrast_ax = plt.axes([0.15, 0.15, 0.65, 0.03], axisbg=axcolor)
bias_ax = plt.axes([0.15, 0.1, 0.65, 0.03], axisbg=axcolor)
contrast_slider = Slider(contrast_ax, "Contrast", 0.0, 1.0, valinit=0.5)
bias_slider = Slider(bias_ax, "Bias", 0.0, 1.0, valinit=0.5)
cmap = colormap.as_mpl_cmap()
plt.subplot(1, 1, 1)
img_ax = plt.imshow(img, cmap=cmap)
plt.colorbar(orientation="horizontal")
def update_colormap():
cmap = colormap.as_mpl_cmap()
img_ax.set_cmap(cmap)
def update_contrast(contrast):
print("Setting contrast to %f" % contrast)
colormap.set_contrast(contrast)
update_colormap()
def update_bias(bias):
print("Setting bias to %f" % bias)
colormap.set_bias(bias)
update_colormap()
contrast_slider.on_changed(update_contrast)
bias_slider.on_changed(update_bias)
plt.show()
