wx中不同弹出选项的不同matlibplots
Different matlibplots for different popup choices in wx
我正在用 wx 为信号发生器制作一个简单的图形用户界面。 I want to display a small plot of say a sine wave when the option "Sine" is chosen, and a plot of a square wave when "Square" is chosen from the menu.我是python的新手，因此classes和继承这些对我来说很难。
在（大量精简的）代码中，我在 class 'ServelPanel' 中有一个变量 'wave'，用于保存选择的波型。但是，当我尝试在 MainFrame class 中绘制波形时，我终生无法检索 'wave' 变量。我试图继承 classes，设置 'wave'-变量全局，但我没有想法。
import wx, random, math, os
from pyo import *
from numpy import arange, sin, pi, sign
import matplotlib
matplotlib.use('WXAgg')
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as
FigureCanvas
from matplotlib.backends.backend_wx import NavigationToolbar2Wx
from matplotlib.figure import Figure
import matplotlib.pyplot as plt
class BasePanel(wx.Panel):
def __init__(self, parent, title):
wx.Panel.__init__(self, parent, style=wx.SUNKEN_BORDER)
self.SetMaxSize((230,150))
self.sliders = []
self.sizer = wx.BoxSizer(wx.VERTICAL)
self.titleSizer = wx.BoxSizer(wx.HORIZONTAL)
self.close = wx.StaticText(self, id=-1, label="X")
self.close.Bind(wx.EVT_LEFT_DOWN, self.MouseDown)
self.titleSizer.Add(self.close, 0, wx.LEFT, 5)
self.title = wx.StaticText(self, id=-1, label=title)
off = (210 - self.title.GetSize()[0]) / 2
self.titleSizer.Add(self.title, 0, wx.LEFT, off)
self.sizer.Add(self.titleSizer, 0, wx.BOTTOM|wx.TOP, 4)
class ServerPanel(wx.Panel):
def __init__(self, parent, colour="#DDDDE7"):
wx.Panel.__init__(self, parent, style=wx.SUNKEN_BORDER)
self.SetBackgroundColour(colour)
self.SetMinSize((230,250))
self.fileformat = self.wavetype = 0
self.title = wx.StaticText(self, id=-1, label="--- Simple Wave
Generator ---", pos=(40,5))
font, psize = self.title.GetFont(),
self.title.GetFont().GetPointSize()
font.SetPointSize(psize-2)
self.waveText =
wx.StaticText(self,id=-1,label="Waveform",pos(15,60))
self.popupWave = wx.Choice(self, id=wx.ID_ANY, pos=(13,70),
size(70,20), choices=["Sine","Square"])
self.popupWave.Bind(wx.EVT_CHOICE, self.changeWave)
objs = [self.waveText]
for obj in objs:
obj.SetFont(font)
def changeWave(self, evt):
global wave
wave = evt.GetInt()
if wave == 1: wave = 2
self.wavetype = wave
class MainFrame(wx.Frame,ServerPanel):
def __init__(self, parent=None, title=u"Sine Test", size=(250,300)):
wx.Frame.__init__(self, parent, id=-1, title=title, size=size)
self.server = Server().boot()
self.sizer = wx.FlexGridSizer(4,4,0,0)
self.panel = wx.Panel(self)
self.serverPanel = ServerPanel(self.panel)
self.sizer.Add(self.serverPanel)
self.panel.SetSizer(self.sizer)
pan = CanvasPanel(self.panel)
pan.draw()
self.Show()
class CanvasPanel(wx.Panel):
def __init__(self, parent):
wx.Panel.__init__(self, parent, id=-1, pos=wx.Point(100,60),
size=wx.Size(80, 50))
figsize = (80*1.0/80, 50*1.0/80)
self.figure = Figure(figsize, dpi=80)
self.axes = self.figure.add_subplot(111)
self.axes.set_axis_off()
self.canvas = FigureCanvas(self, -1, self.figure)
self.sizer = wx.BoxSizer(wx.VERTICAL)
self.sizer.Add(self.canvas,1,wx.LEFT | wx.TOP | wx.GROW)
self.SetSizer(self.sizer)
self.Fit()
def draw(self):
t = arange(0.0, 3.0, 0.01)
s = sin(2 * pi * t)
self.axes.plot(t, s)
def drawSqr(self):
t = arange(0.0, 3.0, 0.01)
s = sign(sin(2 * pi * t))
self.axes.plot(t, s)
mainFrame = MainFrame()
app.MainLoop()
Ps：我知道 "minimal working example" 并不是真正的最小值，但这是我目前可以开始工作的。新手请见谅。
在这个例子中，我硬编码了一个绘图以在 MainFrame 中显示 class，所以你可以看到绘图应该在哪里。
如果我们稍微简化您的代码，删除 un-needed 类，使用 sizers 而不是混合大小调整器和位置语句，清理缩进问题，删除未声明的项目和未使用的导入。
我们从这些方面得到了一些东西。
import wx
from numpy import arange, sin, pi, sign
import matplotlib
matplotlib.use('WXAgg')
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas
from matplotlib.figure import Figure
class MainFrame(wx.Frame):
def __init__(self, parent=None, title=u"Sine Test", size=(250,300)):
wx.Frame.__init__(self, parent, id=-1, title=title, size=size)
self.panel = wx.Panel(self,-1,style=wx.SUNKEN_BORDER)
self.panel.SetBackgroundColour("#DDDDE7")
self.panel.SetMinSize((230,250))
self.wavetype = 0
self.title = wx.StaticText(self.panel, id=-1, label="--- Simple Wave Generator ---")
font, psize = self.title.GetFont(), self.title.GetFont().GetPointSize()
font.SetPointSize(psize-2)
self.waveText = wx.StaticText(self.panel,id=-1,label="Waveform")
self.popupWave = wx.Choice(self.panel, id=wx.ID_ANY, size=(70,30), choices=["Sine","Square"])
self.popupWave.Bind(wx.EVT_CHOICE, self.changeWave)
self.pan = CanvasPanel(self)
self.sizer = wx.GridBagSizer(hgap=5,vgap=5)
self.main_sizer = wx.BoxSizer(wx.VERTICAL)
self.sizer.Add(self.title, pos=(0,0), span=(1,4), flag = wx.ALL|wx.ALIGN_CENTER)
self.sizer.Add(self.waveText, pos=(2,0), flag = wx.ALL)
self.sizer.Add(self.popupWave, pos=(3,0), flag = wx.ALL)
self.sizer.Add(self.pan, pos=(3,1), span=(3,3), flag = wx.ALL|wx.EXPAND)
self.panel.SetSizer(self.sizer)
self.main_sizer.Add(self.panel,1,wx.EXPAND)
self.SetSizer(self.main_sizer)
self.popupWave.SetSelection(0)
self.pan.wavetype = self.popupWave.GetSelection()
self.pan.draw()
self.Show()
def changeWave(self, evt):
wave = evt.GetSelection()
self.pan.wavetype = wave
self.pan.draw()
class CanvasPanel(wx.Panel):
def __init__(self, parent):
wx.Panel.__init__(self, parent, id=-1, size=wx.Size(80, 50))
figsize = (80*1.0/80, 50*1.0/80)
self.figure = Figure(figsize, dpi=80)
self.wavetype = parent.wavetype
self.axes = self.figure.add_subplot(111)
self.axes.set_axis_off()
self.canvas = FigureCanvas(self, -1, self.figure)
self.sizer = wx.BoxSizer(wx.VERTICAL)
self.sizer.Add(self.canvas,1,wx.LEFT | wx.TOP | wx.GROW)
self.SetSizer(self.sizer)
self.Fit()
def draw(self):
#Clear any previous data
self.axes.clear()
self.axes.set_axis_off()
#Plot new wave
if self.wavetype == 0:
t = arange(0.0, 3.0, 0.01)
s = sin(2 * pi * t)
self.axes.plot(t, s)
else:
t = arange(0.0, 3.0, 0.01)
s = sign(sin(2 * pi * t))
self.axes.plot(t, s)
self.Layout()
app=wx.App()
mainFrame = MainFrame()
app.MainLoop()
这可能不是您想要的，请随意使用它！
我正在用 wx 为信号发生器制作一个简单的图形用户界面。 I want to display a small plot of say a sine wave when the option "Sine" is chosen, and a plot of a square wave when "Square" is chosen from the menu.我是python的新手，因此classes和继承这些对我来说很难。
在（大量精简的）代码中，我在 class 'ServelPanel' 中有一个变量 'wave'，用于保存选择的波型。但是，当我尝试在 MainFrame class 中绘制波形时，我终生无法检索 'wave' 变量。我试图继承 classes，设置 'wave'-变量全局，但我没有想法。
import wx, random, math, os
from pyo import *
from numpy import arange, sin, pi, sign
import matplotlib
matplotlib.use('WXAgg')
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as
FigureCanvas
from matplotlib.backends.backend_wx import NavigationToolbar2Wx
from matplotlib.figure import Figure
import matplotlib.pyplot as plt
class BasePanel(wx.Panel):
def __init__(self, parent, title):
wx.Panel.__init__(self, parent, style=wx.SUNKEN_BORDER)
self.SetMaxSize((230,150))
self.sliders = []
self.sizer = wx.BoxSizer(wx.VERTICAL)
self.titleSizer = wx.BoxSizer(wx.HORIZONTAL)
self.close = wx.StaticText(self, id=-1, label="X")
self.close.Bind(wx.EVT_LEFT_DOWN, self.MouseDown)
self.titleSizer.Add(self.close, 0, wx.LEFT, 5)
self.title = wx.StaticText(self, id=-1, label=title)
off = (210 - self.title.GetSize()[0]) / 2
self.titleSizer.Add(self.title, 0, wx.LEFT, off)
self.sizer.Add(self.titleSizer, 0, wx.BOTTOM|wx.TOP, 4)
class ServerPanel(wx.Panel):
def __init__(self, parent, colour="#DDDDE7"):
wx.Panel.__init__(self, parent, style=wx.SUNKEN_BORDER)
self.SetBackgroundColour(colour)
self.SetMinSize((230,250))
self.fileformat = self.wavetype = 0
self.title = wx.StaticText(self, id=-1, label="--- Simple Wave
Generator ---", pos=(40,5))
font, psize = self.title.GetFont(),
self.title.GetFont().GetPointSize()
font.SetPointSize(psize-2)
self.waveText =
wx.StaticText(self,id=-1,label="Waveform",pos(15,60))
self.popupWave = wx.Choice(self, id=wx.ID_ANY, pos=(13,70),
size(70,20), choices=["Sine","Square"])
self.popupWave.Bind(wx.EVT_CHOICE, self.changeWave)
objs = [self.waveText]
for obj in objs:
obj.SetFont(font)
def changeWave(self, evt):
global wave
wave = evt.GetInt()
if wave == 1: wave = 2
self.wavetype = wave
class MainFrame(wx.Frame,ServerPanel):
def __init__(self, parent=None, title=u"Sine Test", size=(250,300)):
wx.Frame.__init__(self, parent, id=-1, title=title, size=size)
self.server = Server().boot()
self.sizer = wx.FlexGridSizer(4,4,0,0)
self.panel = wx.Panel(self)
self.serverPanel = ServerPanel(self.panel)
self.sizer.Add(self.serverPanel)
self.panel.SetSizer(self.sizer)
pan = CanvasPanel(self.panel)
pan.draw()
self.Show()
class CanvasPanel(wx.Panel):
def __init__(self, parent):
wx.Panel.__init__(self, parent, id=-1, pos=wx.Point(100,60),
size=wx.Size(80, 50))
figsize = (80*1.0/80, 50*1.0/80)
self.figure = Figure(figsize, dpi=80)
self.axes = self.figure.add_subplot(111)
self.axes.set_axis_off()
self.canvas = FigureCanvas(self, -1, self.figure)
self.sizer = wx.BoxSizer(wx.VERTICAL)
self.sizer.Add(self.canvas,1,wx.LEFT | wx.TOP | wx.GROW)
self.SetSizer(self.sizer)
self.Fit()
def draw(self):
t = arange(0.0, 3.0, 0.01)
s = sin(2 * pi * t)
self.axes.plot(t, s)
def drawSqr(self):
t = arange(0.0, 3.0, 0.01)
s = sign(sin(2 * pi * t))
self.axes.plot(t, s)
mainFrame = MainFrame()
app.MainLoop()
Ps：我知道 "minimal working example" 并不是真正的最小值，但这是我目前可以开始工作的。新手请见谅。
在这个例子中，我硬编码了一个绘图以在 MainFrame 中显示 class，所以你可以看到绘图应该在哪里。
如果我们稍微简化您的代码，删除 un-needed 类，使用 sizers 而不是混合大小调整器和位置语句，清理缩进问题，删除未声明的项目和未使用的导入。
我们从这些方面得到了一些东西。
import wx
from numpy import arange, sin, pi, sign
import matplotlib
matplotlib.use('WXAgg')
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas
from matplotlib.figure import Figure
class MainFrame(wx.Frame):
def __init__(self, parent=None, title=u"Sine Test", size=(250,300)):
wx.Frame.__init__(self, parent, id=-1, title=title, size=size)
self.panel = wx.Panel(self,-1,style=wx.SUNKEN_BORDER)
self.panel.SetBackgroundColour("#DDDDE7")
self.panel.SetMinSize((230,250))
self.wavetype = 0
self.title = wx.StaticText(self.panel, id=-1, label="--- Simple Wave Generator ---")
font, psize = self.title.GetFont(), self.title.GetFont().GetPointSize()
font.SetPointSize(psize-2)
self.waveText = wx.StaticText(self.panel,id=-1,label="Waveform")
self.popupWave = wx.Choice(self.panel, id=wx.ID_ANY, size=(70,30), choices=["Sine","Square"])
self.popupWave.Bind(wx.EVT_CHOICE, self.changeWave)
self.pan = CanvasPanel(self)
self.sizer = wx.GridBagSizer(hgap=5,vgap=5)
self.main_sizer = wx.BoxSizer(wx.VERTICAL)
self.sizer.Add(self.title, pos=(0,0), span=(1,4), flag = wx.ALL|wx.ALIGN_CENTER)
self.sizer.Add(self.waveText, pos=(2,0), flag = wx.ALL)
self.sizer.Add(self.popupWave, pos=(3,0), flag = wx.ALL)
self.sizer.Add(self.pan, pos=(3,1), span=(3,3), flag = wx.ALL|wx.EXPAND)
self.panel.SetSizer(self.sizer)
self.main_sizer.Add(self.panel,1,wx.EXPAND)
self.SetSizer(self.main_sizer)
self.popupWave.SetSelection(0)
self.pan.wavetype = self.popupWave.GetSelection()
self.pan.draw()
self.Show()
def changeWave(self, evt):
wave = evt.GetSelection()
self.pan.wavetype = wave
self.pan.draw()
class CanvasPanel(wx.Panel):
def __init__(self, parent):
wx.Panel.__init__(self, parent, id=-1, size=wx.Size(80, 50))
figsize = (80*1.0/80, 50*1.0/80)
self.figure = Figure(figsize, dpi=80)
self.wavetype = parent.wavetype
self.axes = self.figure.add_subplot(111)
self.axes.set_axis_off()
self.canvas = FigureCanvas(self, -1, self.figure)
self.sizer = wx.BoxSizer(wx.VERTICAL)
self.sizer.Add(self.canvas,1,wx.LEFT | wx.TOP | wx.GROW)
self.SetSizer(self.sizer)
self.Fit()
def draw(self):
#Clear any previous data
self.axes.clear()
self.axes.set_axis_off()
#Plot new wave
if self.wavetype == 0:
t = arange(0.0, 3.0, 0.01)
s = sin(2 * pi * t)
self.axes.plot(t, s)
else:
t = arange(0.0, 3.0, 0.01)
s = sign(sin(2 * pi * t))
self.axes.plot(t, s)
self.Layout()
app=wx.App()
mainFrame = MainFrame()
app.MainLoop()
这可能不是您想要的，请随意使用它！