python通过设置WordCloud参数实现定制词云
作者：微小冷
这篇文章主要为大家详细介绍了python如何通过设置WordCloud参数实现定制词云,文中的示例代码讲解详细,感兴趣的小伙伴可以跟随小编一起学习一下
添加整型参数
我们所有的设置都放在了wcDct中，所以若想用更多的参数来定制词云，那么只需在wcDct中添加内容，例如下面这些整型参数
其次，WordCloud中有很多参数的数据类型都是整型，这些适用于Spinbox
| 参数 | 说明 | 合适的范围 | 步长 |
|---|---|---|---|
| width | 词云宽度 | 100-2000 | 10 |
| height | 词云高度 | 100-2000 | 10 |
| min_font_size | 最小文字尺寸 | 1-50 | 1 |
| max_font_size | 最大文字尺寸 | 10-1000 | 10 |
| font_step | 字体步长 | 1-20 | 1 |
| max_words | 最大单词数 | 10-500 | 10 |
| min_word_length | 最短单词长度 | 0-10 | 1 |
| scale | 图像缩放 | 默认是1 |
下面就是要向wcDct中添加的内容。
wcDct = {
"最小文字" : {
"ctrl": ttk.Spinbox,
"paras" : {"width":10, "from_":1, "to":50, "increment":1},
"default":4,
"call" : "min_font_size"},
"最大文字" : {
"ctrl": ttk.Spinbox,
"paras" : {"width":10, "from_":10, "to":1e3, "increment":10},
"default":400,
"call" : "max_font_size"},
"字体步长" : {
"ctrl": ttk.Spinbox,
"paras" : {"width":10, "from_":1, "to":20, "increment":1},
"default":10,
"call" : "font_step"},
"最短词长" : {
"ctrl": ttk.Spinbox,
"paras" : {"width":10, "from_":0, "to":10, "increment":1},
"default":1,
"call" : "min_word_length"},
"最多词数" : {
"ctrl": ttk.Spinbox,
"paras" : {"width":10, "from_":10, "to":500, "increment":10},
"default":200,
"call" : "max_words"},
"图像缩放" : {
"ctrl": ttk.Spinbox,
"paras" : {"width":10, "from_":0.5, "to":5, "increment":0.1},
"default":1,
"call" : "scale"},
}
布尔型参数
然后是一些布尔类型的参数，适合用Checkbutton
| 参数 | 说明 | 类型 | 适用组件 |
|---|---|---|---|
| repeat | 是否重复单词 | 默认False | Checkbutton |
| include_numbers | 是否包含数字 | 默认False | |
| normalize_plurals | 是否去掉词尾的s | 默认True |
wcDct = {
"单词重复" : {
"ctrl": ttk.Checkbutton,
"paras" : {"width":10},
"default": False,
"call" : "repeat"},
"包含数字" : {
"ctrl": ttk.Checkbutton,
"paras" : {"width":10},
"default": False,
"call" : "include_numbers"},
"去词尾s" : {
"ctrl": ttk.Checkbutton,
"paras" : {"width":10},
"default": False,
"call" : "normalize_plurals"},
}
背景颜色
最后，还有一个背景颜色对话框
| 参数 | 说明 | 对话框类型 | 说明 |
|---|---|---|---|
| background_color | 背景色 | 颜色对话框 | 默认"black" |
wcDct = {
"背景颜色" : {
"ctrl": DialogButton,
"paras" : {"height":5, "widthL":22, "widthR":8, "logtype":"颜色"},
"call" : "background_color",
"default" : "balck"},
}
更改之后的界面如下
词云生成逻辑
有了这些之后，还要修改词云生成逻辑，即调用这些参数所获得的值，最后根据上图中的参数，得到点云如下
源代码
所有源代码如下
import tkinter as tk
import tkinter.ttk as ttk
from tkinter.filedialog import (askopenfilename,
askopenfilenames, askdirectory, asksaveasfilename)
from tkinter.colorchooser import askcolor
from threading import Thread
import numpy as np
import re
import csv
import jieba
from wordcloud import WordCloud
import os
class DialogButton(ttk.Frame):
def __init__(self, master,
height, widthL, widthR, logtype, label=None, text=None,
frmDct={}, btnDct={}, enyDct={}, logDct={}):
w = widthL + widthR
super().__init__(master,
height=height, width = w, **frmDct)
self.pack(fill=tk.X)
self.text = tk.StringVar() if not text else text
ttk.Entry(self, width=widthL, textvariable=self.text,
**enyDct).pack(side=tk.LEFT, fill = tk.X, padx=5)
ttk.Button(self, width=widthR,
text=self.setLabel(logtype, label),
command = self.Click, **btnDct).pack(side=tk.RIGHT)
self.logtype = logtype
self.logDct = logDct
def setLabel(self, key, label=None):
if label:
return label
labelDct = {
"文件" : "选择文件",
"文件夹" : "选择路径",
"多文件" : "选择多个文件",
"保存" : "存储路径",
"颜色" : "选择颜色",
}
return labelDct[key]
def Click(self):
typeDct = {
"文件" : askopenfilename,
"文件夹": askdirectory,
"多文件": askopenfilenames,
"保存" : asksaveasfilename,
"颜色" : askcolor,
}
text = typeDct[self.logtype](**self.logDct)
if self.logtype == "颜色":
text = text[1]
self.text.set(text)
def get(self):
return self.text.get()
def set(self, txt):
self.text.set(txt)
wcDct = {
"词云宽度" : {
"ctrl": ttk.Spinbox,
"paras" : {"width":10, "from_":100, "to":2000, "increment":10},
"default":800,
"call" : "width"},
"词云高度" : {
"ctrl": ttk.Spinbox,
"paras" : {"width":10, "from_":100, "to":2000, "increment":10},
"default":450,
"call" : "height"},
"图像缩放" : {
"ctrl": ttk.Spinbox,
"paras" : {"width":10, "from_":0.5, "to":10, "increment":0.1},
"default":1,
"call" : "scale"},
"最小文字" : {
"ctrl": ttk.Spinbox,
"paras" : {"width":10, "from_":1, "to":50, "increment":1},
"default":4,
"call" : "min_font_size"},
"最大文字" : {
"ctrl": ttk.Spinbox,
"paras" : {"width":10, "from_":10, "to":1e3, "increment":10},
"default":400,
"call" : "max_font_size"},
"字体步长" : {
"ctrl": ttk.Spinbox,
"paras" : {"width":10, "from_":1, "to":20, "increment":1},
"default":10,
"call" : "font_step"},
"最短词长" : {
"ctrl": ttk.Spinbox,
"paras" : {"width":10, "from_":0, "to":10, "increment":1},
"default":1,
"call" : "min_word_length"},
"最多词数" : {
"ctrl": ttk.Spinbox,
"paras" : {"width":10, "from_":10, "to":500, "increment":10},
"default":200,
"call" : "max_words"},
"字体路径" : {"ctrl": DialogButton,
"paras" : {"height":5, "widthL":22, "widthR":8, "logtype":"文件"},
"call" : "font_path",
"default" : r"C:\Windows\Fonts\simhei.ttf"},
"输入路径" : {"ctrl": DialogButton, "paras" : {"width":25},
"paras" : {"height":5, "widthL":22, "widthR":8, "logtype":"文件"},},
"输出路径" : {"ctrl": DialogButton, "paras" : {"width":25},
"paras" : {"height":5, "widthL":22, "widthR":8, "logtype":"保存"},},
"背景颜色" : {
"ctrl": DialogButton,
"paras" : {"height":5, "widthL":22, "widthR":8, "logtype":"颜色"},
"call" : "background_color",
"default" : "balck"},
"单词重复" : {
"ctrl": ttk.Checkbutton,
"paras" : {"width":10},
"default": False,
"call" : "repeat"},
"包含数字" : {
"ctrl": ttk.Checkbutton,
"paras" : {"width":10},
"default": False,
"call" : "include_numbers"},
"去词尾s" : {
"ctrl": ttk.Checkbutton,
"paras" : {"width":10},
"default": False,
"call" : "normalize_plurals"},
}
class DrawWords(ttk.Frame):
def __init__(self, master, **options):
super().__init__(master, **options)
self.pack()
self.words = None
self.initWidgets()
def initWidgets(self):
frm = ttk.Frame(self)
frm.pack(side=tk.LEFT, fill=tk.Y)
self.initPara(frm)
frm = ttk.LabelFrame(self, text="分词结果")
frm.pack(fill=tk.BOTH, expand=True)
self.txtSplit = tk.Text(frm)
self.txtSplit.pack(side=tk.LEFT, fill=tk.BOTH, padx=5, pady=5, expand=True)
self.addScroll(frm, self.txtSplit)
def addScroll(self, frm, txt):
scroll = ttk.Scrollbar(frm)
scroll.pack(side=tk.RIGHT,fill=tk.Y)
txt.config(yscrollcommand=scroll.set)
scroll.config(command=txt.yview)
def setOneCheck(self, frm, key):
v = wcDct[key] # 组件参数
n = v["call"] # 调用名
self.vars[n] = tk.BooleanVar()
self.vars[n].set(v["default"])
self.checks[n] = v["ctrl"](frm, text=key,
variable=self.vars[n], **v["paras"])
self.checks[n].pack(side=tk.LEFT)
def setOneSpinBox(self, frm, key):
ttk.Label(frm, width=8, text=key).pack(side=tk.LEFT)
v = wcDct[key] # 组件参数
n = v["call"] # 调用名
self.spins[n] = v["ctrl"](frm, **v["paras"])
self.spins[n].set(v["default"])
self.spins[n].pack(side=tk.LEFT)
def setOneDiaButton(self, frmPara, key):
frm = ttk.Frame(frmPara)
frm.pack(side=tk.TOP, fill=tk.X)
ttk.Label(frm, width=8, text=key).pack(side=tk.LEFT)
v = wcDct[key]
n = v["call"] if 'call' in v else key
self.paths[n] = v["ctrl"](frm, **v['paras'])
self.paths[n].pack(side=tk.LEFT)
if 'default' in v:
self.paths[n].set(v['default'])
def setOneColButton(self, frm, key):
frm = ttk.Frame(frmPara)
frm.pack(side=tk.TOP, fill=tk.X)
ttk.Label(frm, width=8, text=key).pack(side=tk.LEFT)
v = wcDct[key]
n = v["call"] if 'call' in v else key
self.paths[n] = v["ctrl"](frm, **v['paras'])
self.paths[n].pack(side=tk.LEFT)
if 'default' in v:
self.paths[n].set(v['default'])
def initPara(self, frmPara):
self.spins = {}
self.checks = {}
self.vars = {}
keys = ["词云宽度", "词云高度", "最小文字", "最大文字",
"字体步长", "图像缩放", "最短词长", "最多词数"]
for i,key in enumerate(keys):
if i%2==0:
frm = ttk.Frame(frmPara)
frm.pack(side=tk.TOP, fill=tk.X, pady=2)
self.setOneSpinBox(frm, key)
keys = ["单词重复", "包含数字", "去词尾s"]
for i,key in enumerate(keys):
if i%4==0:
frm = ttk.Frame(frmPara)
frm.pack(side=tk.TOP, fill=tk.X, pady=2)
self.setOneCheck(frm, key)
self.paths = {}
for key in ["背景颜色", "输入路径", "输出路径", "字体路径"]:
self.setOneDiaButton(frmPara, key)
frm = ttk.Frame(frmPara)
frm.pack(side=tk.TOP, fill=tk.X)
ttk.Button(frm, text="分词预览",
command=self.splitWords).pack(side=tk.LEFT)
ttk.Button(frm, text="分词保存",
command=self.saveWords).pack(side=tk.LEFT)
ttk.Button(frm, text="输出词云",
command=self.genWordCloud).pack(side=tk.LEFT)
def splitWords(self):
p = self.paths["输入路径"].get()
with open(p, encoding='utf8') as f:
text = f.read()
words = jieba.lcut(text)
self.words = [w for w in words if len(w)>1] # 取出长度大于1的词
self.setSplit("\n".join(self.words))
def saveWords(self):
path = asksaveasfilename()
with open(path) as f:
f.write(self.txtSplit.get(1.0, 'end'))
def genWordCloud(self):
dct = {}
keys = ['width', 'height', 'font_path', 'scale',
'min_font_size', 'max_font_size', 'font_step',
'max_words', 'min_word_length', 'background_color',
'repeat', 'include_numbers', 'normalize_plurals']
for key in keys:
if key in self.spins:
dct[key] = int(self.spins[key].get())
if key in self.paths:
dct[key] = self.paths[key].get()
if key in self.checks:
dct[key] = self.vars[key].get()=='1'
print(dct)
try:
cloud = WordCloud(**dct)
except Exception as e:
print(e)
txt = self.txtSplit.get(1.0, "end")
txt = " ".join(txt.split("\n"))
cloud.generate(txt)
p = self.paths["输出路径"].get()
if not (p.endswith('.png') or p.endswith('.svg')):
p = p+".png"
cloud.to_file(p)
def setSplit(self, txt):
self.txtSplit.delete(1.0, "end")
self.txtSplit.insert("end", txt)
self.txtSplit.see("end")
if __name__ == "__main__":
root = tk.Tk()
DrawWords(root).pack(side=tk.TOP, fill=tk.BOTH)
root.mainloop()
以上就是python通过设置WordCloud参数实现定制词云的详细内容，更多关于python词云的资料请关注脚本之家其它相关文章！