测试如何将MatPlotLib嵌入到wxPython中:
# -*- coding: utf-8 -*-
###############################################################################
# wxMPL_test.pyw
#author: Wu Xuping
#Date : 2013-09-15
#测试如何将MatPlotLib嵌入到wxPython中
###############################################################################
import numpy as np
import wx
import matplotlib
# matplotlib采用WXAgg为后台,将matplotlib嵌入wxPython中
matplotlib.use("WXAgg")
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas
from matplotlib.figure import Figure
from matplotlib.backends.backend_wx import NavigationToolbar2Wx as NavigationToolbar
######################################################################################
class MPL_Panel(wx.Panel):
''' #MPL_Panel面板,可以继承或者创建实例'''
def __init__(self,parent):
wx.Panel.__init__(self,parent=parent, id=-1)
self.Figure = matplotlib.figure.Figure(figsize=(4,3))
self.axes = self.Figure.add_axes([0.1,0.1,0.8,0.8])
self.FigureCanvas = FigureCanvas(self,-1,self.Figure)
#继承鼠标移动显示鼠标处坐标的事件
self.FigureCanvas.mpl_connect('motion_notify_event',self.MPLOnMouseMove)
self.NavigationToolbar = NavigationToolbar(self.FigureCanvas)
self.StaticText = wx.StaticText(self,-1,label='Show Help String')
self.SubBoxSizer = wx.BoxSizer(wx.HORIZONTAL)
self.SubBoxSizer.Add(self.NavigationToolbar,proportion =0, border = 2,flag = wx.ALL | wx.EXPAND)
self.SubBoxSizer.Add(self.StaticText,proportion =-1, border = 2,flag = wx.ALL | wx.EXPAND)
self.TopBoxSizer = wx.BoxSizer(wx.VERTICAL)
self.TopBoxSizer.Add(self.SubBoxSizer,proportion =-1, border = 2,flag = wx.ALL | wx.EXPAND)
self.TopBoxSizer.Add(self.FigureCanvas,proportion =-10, border = 2,flag = wx.ALL | wx.EXPAND)
self.SetSizer(self.TopBoxSizer)
#显示坐标值
def MPLOnMouseMove(self,event):
ex=event.xdata#这个数据类型是numpy.float64
ey=event.ydata#这个数据类型是numpy.float64
if ex and ey :
#可以将numpy.float64类型转化为float类型,否则格式字符串可能会出错
self.StaticText.SetLabel('%10.5f,%10.5f' % (float(ex),float(ey)))
#也可以这样
#self.StaticText.SetLabel('%s,%s' % (ex,ey))
###############################################################################
# MPL_Frame添加了MPL_Panel的1个实例
###############################################################################
class MPL_Frame(wx.Frame):
"""MPL_Frame可以继承,并可修改,或者直接使用"""
def __init__(self,title="MPL_Frame Example In wxPython",size=(800,500)):
wx.Frame.__init__(self,parent=None,title = title,size=size)
self.MPL = MPL_Panel(self)
self.Figure = self.MPL.Figure
self.axes = self.MPL.axes
self.FigureCanvas = self.MPL.FigureCanvas
self.RightPanel = wx.Panel(self,-1)
#测试按钮1
self.Button1 = wx.Button(self.RightPanel,-1,"TestButton",size=(100,40),pos=(10,10))
self.Button1.Bind(wx.EVT_BUTTON,self.Button1Event)
#创建FlexGridSizer
self.FlexGridSizer=wx.FlexGridSizer( rows=5, cols=1, vgap=5,hgap=5)
self.FlexGridSizer.SetFlexibleDirection(wx.BOTH)
#加入Sizer中
self.FlexGridSizer.Add(self.Button1,proportion =0, border = 5,flag = wx.ALL | wx.EXPAND)
self.RightPanel.SetSizer(self.FlexGridSizer)
self.BoxSizer=wx.BoxSizer(wx.HORIZONTAL)
self.BoxSizer.Add(self.MPL,proportion =-10, border = 2,flag = wx.ALL | wx.EXPAND)
self.BoxSizer.Add(self.RightPanel,proportion =0, border = 2,flag = wx.ALL | wx.EXPAND)
self.SetSizer(self.BoxSizer)
#MPL_Frame界面居中显示
self.Centre(wx.BOTH)
#按钮事件,用于测试绘图
def Button1Event(self,event):
x=np.arange(-10,10,0.25)
y=np.cos(x)
self.axes.plot(x,y,'--b*')
self.axes.grid(True)
self.FigureCanvas.draw()#一定要实时更新
########################################################################
#主程序测试
if __name__ == '__main__':
app = wx.PySimpleApp()
#frame = MPL2_Frame()
frame =MPL_Frame()
frame.Center()
frame.Show()
app.MainLoop()
图像如下:
