demo + utils venv

utils/venv/lib/python3.6/site-packages/matplotlib/backends/tkagg.py

@@ -0,0 +1,46 @@
+import tkinter as Tk
+
+import numpy as np
+
+from matplotlib import cbook
+from matplotlib.backends import _tkagg
+
+
+cbook.warn_deprecated(
+    "3.0", "The matplotlib.backends.tkagg module is deprecated.")
+
+
+def blit(photoimage, aggimage, bbox=None, colormode=1):
+    tk = photoimage.tk
+
+    if bbox is not None:
+        bbox_array = bbox.__array__()
+        # x1, x2, y1, y2
+        bboxptr = (bbox_array[0, 0], bbox_array[1, 0],
+                   bbox_array[0, 1], bbox_array[1, 1])
+    else:
+        bboxptr = 0
+    data = np.asarray(aggimage)
+    dataptr = (data.shape[0], data.shape[1], data.ctypes.data)
+    try:
+        tk.call(
+            "PyAggImagePhoto", photoimage,
+            dataptr, colormode, bboxptr)
+    except Tk.TclError:
+        if hasattr(tk, 'interpaddr'):
+            _tkagg.tkinit(tk.interpaddr(), 1)
+        else:
+            # very old python?
+            _tkagg.tkinit(tk, 0)
+        tk.call("PyAggImagePhoto", photoimage,
+                dataptr, colormode, bboxptr)
+
+def test(aggimage):
+    r = Tk.Tk()
+    c = Tk.Canvas(r, width=aggimage.width, height=aggimage.height)
+    c.pack()
+    p = Tk.PhotoImage(width=aggimage.width, height=aggimage.height)
+    blit(p, aggimage)
+    c.create_image(aggimage.width,aggimage.height,image=p)
+    blit(p, aggimage)
+    while True: r.update_idletasks()