Closed as not planned
Description
Bug report
Bug summary
I tried to use Gtk3Cairo backend to display a matplotlib figure on my Gtk3 window.
When the FigureCanvas is added and drawn by Gtk, the rendered size of objects seems to double (see figures).
Code for reproduction
import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk, Gdk
from matplotlib.figure import Figure
import random as Rdm
from matplotlib.backends.backend_gtk3cairo import FigureCanvas
def getDiagram():
f = Figure(figsize=(100, 100))
plot = f.add_subplot(1, 1, 1)
# Add figure
labels = ['Mo', 'Tu', 'We', 'Th', 'Fr','Sa', 'Su']
width = 0.93 # the width of the bars
data = [[1,15],[17,22], [3,7]]
for i in range(0,len(data)):
plotColor = Gdk.RGBA(Rdm.random(),Rdm.random(),Rdm.random(),1)
plot.bar(labels, data[i][0], width, yerr=None, bottom=data[i][1],
color=(plotColor.red, plotColor.green, plotColor.blue))
plot.set_frame_on(True)
plot.yaxis.set_visible(True)
plot.set_ylim(0.0,24.0)
return f
#END getDiagram
class testWin(Gtk.Window):
def __init__(self):
Gtk.Window.__init__(self)
self.set_default_size(500,600)
self.show()
grid = Gtk.Grid()
self.add(grid)
fig = getDiagram()
canvas = FigureCanvas(fig)
canvas.set_size_request(200,200)
topButton = Gtk.Button(label="Button Top")
grid.attach(topButton,0,0,2,1)
grid.attach(canvas,0,1,2,1)
#grid.attach(Gtk.Label("Test"),0,1,2,1)
botButton = Gtk.Button(label="Button Bottom")
grid.attach(botButton,0,2,2,1)
self.show_all()
#END testWin
win = testWin()
win.connect("destroy",Gtk.main_quit)
win.show_all()
Gtk.main()Actual outcome
Expected outcome
The size of rendered objects shouldn't change when I add the FigureCanvas.
Matplotlib version
- Operating system: macOS 10.13.4
- Matplotlib version: 3.3.0
- Matplotlib backend (
print(matplotlib.get_backend())): MacOSX - Python version: 3.8.4
- Other libraries:
pycairo: 1.19.1
PyGObject: 3.36.1
I installed matplotlib and the other Python libraries with pip3