Python繪圖之自定義圖類型控件實現(xiàn)混合類型圖表
更新時間：2023年08月25日 09:44:48 作者：微小冷
這篇文章主要為大家詳細介紹了Python如何新建繪圖類型控件,實現(xiàn)混合類型圖表,文中的示例代碼講解詳細,感興趣的小伙伴可以跟隨小編一起學(xué)習(xí)一下
Python繪圖系統(tǒng)：
基礎(chǔ)：將matplotlib嵌入到tkinter|簡單的繪圖系統(tǒng)|數(shù)據(jù)導(dǎo)入|三維繪圖系統(tǒng)
自定義控件：坐標設(shè)置控件|坐標列表控件|支持多組數(shù)據(jù)的繪圖系統(tǒng)
圖表類型和風(fēng)格：散點圖和條形圖
繪圖類型控件
很多時候我們都有在一張圖上繪制多種圖標的需求，比如數(shù)據(jù)擬合的時候，用散點圖表示原始數(shù)據(jù)，用曲線圖來表示繪圖后的結(jié)果。從這個角度來說，每一組繪圖數(shù)據(jù)都應(yīng)該有其自身的繪圖類別。換言之，我們在DrawSystem中建立的繪圖類型選擇框，也需要在AxisFrame中使用。
為了降低代碼重復(fù)，最好還是新建一個控件，專門用于約定繪圖類型。而且更加廣泛地講，除了散點圖條形圖這種，是二維還是三維，也可算在繪圖類型里面。所以，這個繪圖類型控件，至少包含兩個ComboBox，這對于已經(jīng)創(chuàng)建過AxisFrame和AxisList的我們來說，屬于小兒科水平
class DrawType(ttk.Frame):
# ws為兩個combobox的寬
def __init__(self, master, types, slctType,
slctDim="3", ws=None, **options):
super().__init__(master, **options)
self.pack()
self.types = types # 繪圖類型
self.dims = ("1", "2", "3", "1+1", "2+1", "3+1") # 繪圖維度
self.initVar(slctType, slctDim)
self.initWidgets(ws)
def initVar(self, slctType, slctDim):
self.drawType = tk.StringVar()
self.drawType.set(slctType)
self.drawDim = tk.StringVar()
if type(slctDim) != str:
slctDim = self.dims[int(slctDim)]
self.drawDim.set(slctDim)
def initWidgets(self, ws):
if ws==None: ws = [8, 3]
vs = [self.drawType, self.drawDim]
slcts = [self.types, self.dims]
for i in range(2):
slct = ttk.Combobox(self, width=ws[i], textvariable=vs[i])
slct['value'] = slcts[i]
slct.pack(side=tk.LEFT)
def getType(self):
return self.drawType.get()
def getDim(self):
dim = self.drawDim.get()
dimDct = {"1" : "x", "2" : "xy", "3" : "xyz",
"1+1": "tx", "2+1": "txy", "3+1": "txyz"}
return dimDct[dim]然后更改DrawSystem，主要是把setCtrlButtons(self, frm)函數(shù)的前兩句改為
def setCtrlButtons(self, frm):
self.drawTypeDim = DrawType(frm, self.TYPES, "點線圖")
self.drawTypeDim.pack(side=tk.LEFT)
# ...另一方面，兩個ComboBox太大了，為了美觀，把新增和刪除兩個按鈕上的文字改為加號和減號。修改過后的UI如下
改造AxisList
首先，在AxisList的初始化代碼中添加初始化繪圖類型的參數(shù)
def __init__(self, master,
title, mode, widths,
types, slctType, # 繪圖類型Combobox的參數(shù)
**options):
super().__init__(master, **options)
self.pack()
self.afs = {}
self.data = {}
self.initWidgets(title, widths)
self.initFeature(types, slctType)
self.initAxis(mode, widths)由于更改是輸入?yún)?shù)的個數(shù)，所以在DrawSystem中調(diào)用時，需要把types和slctType這兩個參數(shù)補上。
然后在initFeature中添加drawTypeDim，
def initFeature(self, types, slctType):
frm = ttk.Frame(self._c)
frm.pack(pady=2, side=tk.TOP, fill=tk.X)
ttk.Button(frm, text="加載",width=5,
command=self.btnLoadData).pack(side=tk.LEFT)
frm = ttk.Frame(self._c)
frm.pack(pady=2, side=tk.TOP, fill=tk.X)
self.drawTypeDim = DrawType(frm, types, slctType)
self.vis = {L : True for L in 'txyz'}
for flag in 'txyz':
btn = ttk.Button(frm, text=flag, width=3)
btn.pack(side=tk.LEFT)
btn.bind("<Button-1>", self.btnAxisCollapse)更改繪圖邏輯
最后，更改繪圖邏輯。首先，考慮到drawDct的特點，將其改為全局變量。
self.drawDct = {
"點線圖" : self.drawPlot,
"散點圖" : self.drawScatter,
"條形圖" : self.drawBar
}然后，考慮到每次繪圖都需要讀取AxisList中的繪圖類型，從而需要分次調(diào)用繪圖函數(shù)，所以創(chuàng)建窗口這一步也交給btnDrawImg函數(shù)，從而繪圖函數(shù)就只剩下了完完全全的繪圖功能。相關(guān)代碼如下
def btnDrawImg(self):
self.fig.clf()
keys = self.drawTypeDim.getDim()
p = '3d' if 'z' in keys else None
ax = self.fig.add_subplot(projection=p)
for al in self.als:
data = self.readDatas(al)
draw = self.drawDct[al.getDrawType()]
draw(ax, data, keys)
self.fig.subplots_adjust(left=0.1, right=0.95, top=0.95, bottom=0.08)
self.canvas.draw()
def drawBar(self, ax, data, keys):
ax.bar(data['x'], data['y'])
def drawPlot(self, ax, data, keys):
ax.plot(*[data[key] for key in keys])
def drawScatter(self, ax, data, keys):
ax.scatter(*[data[key] for key in keys])最后運行結(jié)果如下，分別繪制的散點圖和曲線圖。
源代碼
最后附上源代碼，寫在.py文件里，然后python xx.py就可以正常運行。
import tkinter as tk
import tkinter.ttk as ttk
from tkinter.filedialog import askopenfilename
import matplotlib as mpl
mpl.use('TkAgg')
import matplotlib.pyplot as plt
from matplotlib.backends.backend_tkagg import (
FigureCanvasTkAgg, NavigationToolbar2Tk)
from matplotlib.figure import Figure
import numpy as np
class AxisFrame(ttk.Frame):
# widths 是每個控件的寬度
def __init__(self, master, label, mode, widths, **options):
super().__init__(master, **options)
self.pack()
self.label = label
self.initVar(mode)
self.initWidgets(widths)
def initVar(self, mode):
self.MODES = ("序列化", "源代碼", "外部導(dǎo)入", "無數(shù)據(jù)")
self.mode = tk.StringVar()
self.setMode(mode)
def initWidgets(self, widths):
tk.Label(self, text=self.label, width=widths[0]).pack(side=tk.LEFT)
self.slct = ttk.Combobox(self, width=widths[1], textvariable=self.mode)
self.slct['value'] = self.MODES
self.slct.pack(side=tk.LEFT)
self.entry = tk.Entry(self, width=widths[2])
self.entry.pack(padx=5, side=tk.LEFT, fill=tk.X)
def setText(self, text):
self.entry.delete(0, "end")
self.entry.insert(0, text)
def get(self):
return self.entry.get()
def setMode(self, mode):
if type(mode) != str:
mode = self.MODES[mode]
self.mode.set(mode)
def setData(self, data=None, **txyz):
if self.mode.get() == "序列化":
return self.getArray()
elif self.mode.get() == "外部導(dǎo)入":
return self.loadData(data)
else:
return self.readPython(**txyz)
def readPython(self, t=None, x=None, y=None, z=None):
self.data = eval(self.get())
return self.data
def loadData(self, data):
if type(data) != type(None):
self.data = data
return self.data
def getArray(self):
val = self.get()
self.data = eval(f"np.linspace({val})")
return self.data
class AxisList(ttk.Frame):
def __init__(self, master,
title, mode, widths,
types, slctType, # 繪圖類型Combobox的參數(shù)
**options):
super().__init__(master, **options)
self.pack()
self.afs = {}
self.data = {}
self.initWidgets(title, widths)
self.initFeature(types, slctType)
self.initAxis(mode, widths)
def initWidgets(self, title, widths):
self.btn = ttk.Button(self, text=title, width=sum(widths)+5,
command=self.Click)
self.btn.pack(side=tk.TOP, fill=tk.X, expand=tk.YES)
self._c = ttk.Frame(self)
self.collapsed = True
self.Click()
def initFeature(self, types, slctType):
frm = ttk.Frame(self._c)
frm.pack(pady=2, side=tk.TOP, fill=tk.X)
ttk.Button(frm, text="加載",width=5,
command=self.btnLoadData).pack(side=tk.LEFT)
frm = ttk.Frame(self._c)
frm.pack(pady=2, side=tk.TOP, fill=tk.X)
self.drawTypeDim = DrawType(frm, types, slctType)
self.drawTypeDim.pack(side=tk.LEFT)
self.vis = {L : True for L in 'txyz'}
for flag in 'txyz':
btn = ttk.Button(frm, text=flag, width=3)
btn.pack(side=tk.LEFT)
btn.bind("<Button-1>", self.btnAxisCollapse)
def getDrawType(self):
return self.drawTypeDim.getType()
def getDrawDim(self):
return self.drawTypeDim.getDim()
def initAxis(self, mode, widths):
for flag in 'txyz':
self.afs[flag] = AxisFrame(self._c, flag, mode, widths)
self.afs[flag].pack(side=tk.TOP, fill=tk.X)
def btnAxisCollapse(self, evt):
flag = evt.widget['text']
self.vis[flag] = not self.vis[flag]
for flag in 'txyz':
self.afs[flag].pack_forget()
for flag in 'txyz':
if self.vis[flag]:
self.afs[flag].pack(side=tk.TOP, fill=tk.X)
def btnLoadData(self):
name = askopenfilename()
data = np.genfromtxt(name)
for i, flag in enumerate('xyz'):
if i >= data.shape[1]:
return
self.setOneMode(flag, "外部導(dǎo)入")
self.data[flag] = self.setData(flag, data[:,i])
def Click(self):
if self.collapsed:
self._c.pack(side=tk.TOP, fill=tk.BOTH, expand=tk.YES)
else:
self._c.pack_forget()
self.collapsed = not self.collapsed
def setData(self, flag, data=None, **options):
return self.afs[flag].setData(data, **options)
def setOneMode(self, flag, mode):
self.afs[flag].setMode(mode)
# 繪圖類型和維度
class DrawType(ttk.Frame):
# ws為兩個combobox的寬
def __init__(self, master, types, slctType,
slctDim="3", ws=None, **options):
super().__init__(master, **options)
self.pack()
self.types = types # 繪圖類型
self.dims = ("1", "2", "3", "1+1", "2+1", "3+1") # 繪圖維度
self.initVar(slctType, slctDim)
self.initWidgets(ws)
def initVar(self, slctType, slctDim):
self.drawType = tk.StringVar()
self.drawType.set(slctType)
self.drawDim = tk.StringVar()
if type(slctDim) != str:
slctDim = self.dims[int(slctDim)]
self.drawDim.set(slctDim)
def initWidgets(self, ws):
if ws==None: ws = [8, 3]
vs = [self.drawType, self.drawDim]
slcts = [self.types, self.dims]
for i in range(2):
slct = ttk.Combobox(self, width=ws[i], textvariable=vs[i])
slct['value'] = slcts[i]
slct.pack(side=tk.LEFT)
def getType(self):
return self.drawType.get()
def getDim(self):
dim = self.drawDim.get()
dimDct = {"1" : "x", "2" : "xy", "3" : "xyz",
"1+1": "tx", "2+1": "txy", "3+1": "txyz"}
return dimDct[dim]
class DarwSystem():
def __init__(self):
self.root = tk.Tk()
self.root.title("數(shù)據(jù)展示工具")
self.data = {}
self.als = []
self.initConst()
self.setFrmCtrl()
frmFig = ttk.Frame(self.root)
frmFig.pack(side=tk.LEFT,fill=tk.BOTH,expand=tk.YES)
self.setFrmFig(frmFig)
self.root.mainloop()
def initConst(self):
self.TYPES = ("點線圖", "散點圖", "條形圖")
def setFrmCtrl(self):
frmCtrl = ttk.Frame(self.root,width=320)
frmCtrl.pack(side=tk.RIGHT, fill=tk.Y)
frm = ttk.Frame(frmCtrl, width=320)
frm.pack(side=tk.TOP, fill=tk.X)
self.setCtrlButtons(frm)
self.frmAxis = ttk.Frame(frmCtrl)
self.frmAxis.pack(side=tk.TOP, fill=tk.X)
self.addLast(None)
# ! 工具欄
def setCtrlButtons(self, frm):
self.drawTypeDim = DrawType(frm, self.TYPES, "點線圖")
self.drawTypeDim.pack(side=tk.LEFT)
ttk.Button(frm, text="繪圖",width=5,
command=self.btnDrawImg).pack(side=tk.LEFT)
ttk.Button(frm, text="加載",width=5,
command=self.btnLoadData).pack(side=tk.LEFT)
btn = ttk.Button(frm, text="+", width=3)
btn.pack(side=tk.LEFT)
btn.bind("<Button-1>", self.addLast)
btn = ttk.Button(frm, text="-", width=3)
btn.pack(side=tk.LEFT)
btn.bind("<Button-1>", self.deleteLast)
def addLast(self, evt):
title = f"坐標{len(self.als)}"
al = AxisList(self.frmAxis, title, 1, [5,10,20],
self.TYPES, self.drawTypeDim.getType())
al.pack(side=tk.TOP, fill=tk.X)
self.als.append(al)
def deleteLast(self, evt):
self.als[-1].pack_forget()
del self.als[-1]
def btnLoadData(self):
name = askopenfilename()
data = np.genfromtxt(name)
for i, flag in enumerate('xyz'):
if i >= data.shape[1]:
return
self.AL.setOneMode(flag, "外部導(dǎo)入")
self.data[flag] = self.AL.setData(flag, data[:,i])
def readDatas(self, al):
dct = {}
data = {}
for flag in 'xyz':
data[flag] = al.setData(flag, **dct)
dct[flag] = data[flag]
return data
def btnDrawImg(self):
drawDct = {
"點線圖" : self.drawPlot,
"散點圖" : self.drawScatter,
"條形圖" : self.drawBar
}
self.fig.clf()
keys = self.drawTypeDim.getDim()
p = '3d' if 'z' in keys else None
ax = self.fig.add_subplot(projection=p)
for al in self.als:
data = self.readDatas(al)
draw = drawDct[al.getDrawType()]
draw(ax, data, keys)
self.fig.subplots_adjust(left=0.1, right=0.95, top=0.95, bottom=0.08)
self.canvas.draw()
def drawBar(self, ax, data, keys):
ax.bar(data['x'], data['y'])
def drawPlot(self, ax, data, keys):
ax.plot(*[data[key] for key in keys])
def drawScatter(self, ax, data, keys):
ax.scatter(*[data[key] for key in keys])
def setFrmFig(self, frmFig):
self.fig = Figure()
self.canvas = FigureCanvasTkAgg(self.fig,frmFig)
self.canvas.get_tk_widget().pack(
side=tk.TOP,fill=tk.BOTH,expand=tk.YES)
self.toolbar = NavigationToolbar2Tk(self.canvas,frmFig,
pack_toolbar=False)
self.toolbar.update()
self.toolbar.pack(side=tk.RIGHT)
if __name__ == "__main__":
test = DarwSystem()以上就是Python繪圖之自定義圖類型控件實現(xiàn)混合類型圖表的詳細內(nèi)容，更多關(guān)于Python混合類型圖表的資料請關(guān)注腳本之家其它相關(guān)文章！
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