1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
#!/usr/bin/env python
"""
A simple demo that shows how to use FloatCanvas to draw rectangles on the screen
Note: this is now broken -- the events are not getting to the Rubber Band Box object.
It should be re-factored to use GUIMode
"""
import wx
## import a local version
#import sys
#sys.path.append("..")
#from floatcanvas import NavCanvas, FloatCanvas, Resources, Utilities, GUIMode
#from floatcanvas.Utilities import GUI
## import the installed version
from wx.lib.floatcanvas import NavCanvas, FloatCanvas, GUIMode
from wx.lib.floatcanvas.Utilities import GUI
import numpy as np
class DrawFrame(wx.Frame):
"""
A frame used for the FloatCanvas Demo
"""
def __init__(self,parent, id,title,position,size):
wx.Frame.__init__(self,parent, id,title,position, size)
self.CreateStatusBar()
# Add the Canvas
NC = NavCanvas.NavCanvas(self,
size= (500,500),
ProjectionFun = None,
Debug = 0,
BackgroundColor = "DARK SLATE BLUE",
)
self.Canvas = NC.Canvas
self.Canvas.Bind(FloatCanvas.EVT_MOTION, self.OnMove)
# Add some buttons to the Toolbar
tb = NC.ToolBar
tb.AddSeparator()
ClearButton = wx.Button(tb, wx.ID_ANY, "Clear")
tb.AddControl(ClearButton)
ClearButton.Bind(wx.EVT_BUTTON, self.Clear)
DrawButton = wx.Button(tb, wx.ID_ANY, "StopDrawing")
tb.AddControl(DrawButton)
DrawButton.Bind(wx.EVT_BUTTON, self.SetDraw)
self.DrawButton = DrawButton
tb.Realize()
# Initialize a few values
self.Rects = []
self.RBBoxMode = GUI.RubberBandBox(self.NewRect)
self.Canvas.SetMode(self.RBBoxMode)
self.Canvas.ZoomToBB()
self.Show(True)
return None
def Clear(self, event=None):
self.Rects = []
self.Canvas.ClearAll()
self.Canvas.Draw()
def SetDraw(self, event=None):
label = self.DrawButton.GetLabel()
if label == "Draw":
self.DrawButton.SetLabel("StopDrawing")
self.Canvas.SetMode(self.RBBoxMode)
elif label == "StopDrawing":
self.DrawButton.SetLabel("Draw")
self.Canvas.SetMode(GUIMode.GUIMouse())
else: # huh?
pass
def NewRect(self, rect):
self.Rects.append(self.Canvas.AddRectangle(*rect, LineWidth=4))
self.Canvas.Draw(True)
def OnMove(self, event):
"""
Updates the status bar with the world coordinates
"""
self.SetStatusText("%.4f, %.4f"%tuple(event.Coords))
event.Skip()
app = wx.App()
DrawFrame(None, -1, "FloatCanvas Rectangle Drawer", wx.DefaultPosition, (700,700) )
app.MainLoop()
|
