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#!/usr/bin/env python
from gtk import *
from gtkextra import *
from math import cos
class Application(GtkWindow):
def __init__(self):
GtkWindow.__init__(self, title="Contour Demo")
self.set_usize(550, 600)
self.connect("destroy", mainquit)
scrollwin = GtkScrolledWindow()
scrollwin.set_policy(POLICY_AUTOMATIC, POLICY_AUTOMATIC)
self.add(scrollwin)
canvas = GtkPlotCanvas(PLOT_LETTER_W, PLOT_LETTER_H)
canvas.plot_canvas_set_flags(PLOT_CANVAS_DND_FLAGS)
scrollwin.add_with_viewport(canvas)
plot = GtkPlot3D(width=0.5, height=0.5)
plot.axis_set_minor_ticks(PLOT_AXIS_X, 3)
plot.axis_set_minor_ticks(PLOT_AXIS_Y, 3)
plot.minor_grids_set_visible(FALSE, FALSE, FALSE)
canvas.add_plot(plot, 0.16, 0.02)
surface = GtkPlotCSurface(self.function)
surface.set_xstep(0.025)
surface.set_ystep(0.025)
surface.set_legend("cos ((r-r\\s0\\N)\\S2\\N)")
surface.set_gradient(0.2, 0.8, 6)
plot.add_data(surface)
plot = GtkPlot(width=0.4, height=0.4)
plot.axis_set_minor_ticks(PLOT_AXIS_X, 1)
plot.axis_set_minor_ticks(PLOT_AXIS_Y, 1)
canvas.add_plot(plot, 0.26, 0.56)
surface = GtkPlotCSurface(self.function)
surface.set_xstep(0.025)
surface.set_ystep(0.025)
surface.set_legend("cos ((r-r\\s0\\N)\\S2\\N)")
surface.set_gradient(0.2, 0.8, 6)
surface.set_grid_visible(FALSE)
surface.set_lines_only(TRUE)
plot.add_data(surface)
self.show_all()
def function(self, x, y):
return cos(((x - 0.5) * (x - 0.5) + (y - 0.5) * (y - 0.5)) * 24.0) \
/ 3.0 + 0.5
def mainloop(self):
mainloop()
if __name__ == '__main__':
app = Application()
app.mainloop()
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