├── .gitattributes ├── .gitignore ├── 60960684_p0.png ├── LICENSE ├── Pipfile ├── Pipfile.lock ├── README.md ├── main.py ├── potrace.exe └── requirements.txt /.gitattributes: -------------------------------------------------------------------------------- 1 | # Auto detect text files and perform LF normalization 2 | * text=auto 3 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | .vscode/ -------------------------------------------------------------------------------- /60960684_p0.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/tfx2001/python-turtle-draw-svg/69a0fcadf4477a13d1e130190dcc214ee9561ee6/60960684_p0.png -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) 2018 {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | python-turtle-draw-svg Copyright (C) 2018 tfx2001 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . -------------------------------------------------------------------------------- /Pipfile: -------------------------------------------------------------------------------- 1 | [[source]] 2 | url = "https://pypi.tuna.tsinghua.edu.cn/simple" 3 | verify_ssl = true 4 | name = "pypi" 5 | 6 | [packages] 7 | lxml = "==4.2.1" 8 | "beautifulsoup4" = "==4.6.0" 9 | numpy = "==1.14.5" 10 | opencv-python = "==3.4.1.15" 11 | "pywin32" = "==223" 12 | 13 | [dev-packages] 14 | pylint = "*" 15 | 16 | [requires] 17 | python_version = "3.6" 18 | -------------------------------------------------------------------------------- /Pipfile.lock: -------------------------------------------------------------------------------- 1 | { 2 | "_meta": { 3 | "hash": { 4 | "sha256": "7a1b1cd49216e4ce1c90caa1e908bde32dbb6e2e977ed7c65517b46c9afac58c" 5 | }, 6 | "pipfile-spec": 6, 7 | "requires": { 8 | "python_version": "3.6" 9 | }, 10 | "sources": [ 11 | { 12 | "name": "pypi", 13 | "url": 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245 | }, 246 | "wrapt": { 247 | "hashes": [ 248 | "sha256:d4d560d479f2c21e1b5443bbd15fe7ec4b37fe7e53d335d3b9b0a7b1226fe3c6" 249 | ], 250 | "version": "==1.10.11" 251 | } 252 | } 253 | } 254 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # python-turtle-draw-svg 2 | 3 | 4 | [![GitHub issues](https://img.shields.io/github/issues/tfx2001/python-turtle-draw-svg.svg?style=flat-square)](https://github.com/tfx2001/python-turtle-draw-svg/issues) 5 | [![GitHub forks](https://img.shields.io/github/forks/tfx2001/python-turtle-draw-svg.svg?style=flat-square)](https://github.com/tfx2001/python-turtle-draw-svg/network) 6 | [![GitHub stars](https://img.shields.io/github/stars/tfx2001/python-turtle-draw-svg.svg?style=flat-square)](https://github.com/tfx2001/python-turtle-draw-svg/stargazers) 7 | [![GitHub license](https://img.shields.io/github/license/tfx2001/python-turtle-draw-svg.svg?style=flat-square)](https://github.com/tfx2001/python-turtle-draw-svg/blob/master/LICENSE) 8 | 9 | 10 | 11 | 12 | 可以把位图转化为svg然后使用turtle库画出来。 13 | 14 | # Usage 15 | 16 | ``` 17 | usage: main.py [-h] [-c COLOR] filename 18 | 19 | Convert an bitmap to SVG and use turtle libray to draw it. 20 | 21 | positional arguments: 22 | filename The file(*.jpg, *.png, *.bmp) name of the file you 23 | want to convert. 24 | 25 | optional arguments: 26 | -h, --help show this help message and exit 27 | -c COLOR, --color COLOR 28 | How many colors you want to draw.(If the number is too 29 | large that the program may be very slow.) 30 | ``` 31 | 32 | # Dependents 33 | 34 | See `requirements.txt` . 35 | 36 | # Demo Video 37 | 38 | [【自制展示】用 Python的 turtle库画小姐姐](http://www.bilibili.com/video/av20349733?share_medium=android&share_source=copy_link&bbid=37902872-DA4A-4D5D-878B-AEE788048F4217066infoc&ts=1533854267282) 39 | 40 | # Reference 41 | 42 | 1. [potrace.exe](http://potrace.sourceforge.net/) 43 | 2. [Python123](https://www.python123.io/index/turtle_drawing/5a006e85283c653c6d3219d8) 44 | 3. [深度掌握SVG路径path的贝塞尔曲线指令](https://www.zhangxinxu.com/wordpress/2014/06/deep-understand-svg-path-bezier-curves-command/) 45 | 4. [K-Means Clustering in OpenCV](https://docs.opencv.org/3.0-beta/doc/py_tutorials/py_ml/py_kmeans/py_kmeans_opencv/py_kmeans_opencv.html) 46 | 47 | # License 48 | 49 | The GNU GPLv3 License. 50 | 51 | Copyright (c) 2018 tfx2001 52 | -------------------------------------------------------------------------------- /main.py: -------------------------------------------------------------------------------- 1 | # -*- coding: utf-8 -*- 2 | # Author: tfx2001 3 | # License: GNU GPLv3 4 | # Time: 2018-08-09 18:27 5 | 6 | import turtle as te 7 | from bs4 import BeautifulSoup 8 | import argparse 9 | import sys 10 | import numpy as np 11 | import cv2 12 | import os 13 | from win32.win32api import GetSystemMetrics 14 | 15 | WriteStep = 15 # 贝塞尔函数的取样次数 16 | Speed = 1000 17 | Width = 600 # 界面宽度 18 | Height = 600 # 界面高度 19 | Xh = 0 # 记录前一个贝塞尔函数的手柄 20 | Yh = 0 21 | scale = (1, 1) 22 | first = True 23 | K = 32 24 | 25 | 26 | def Bezier(p1, p2, t): # 一阶贝塞尔函数 27 | return p1 * (1 - t) + p2 * t 28 | 29 | 30 | def Bezier_2(x1, y1, x2, y2, x3, y3): # 二阶贝塞尔函数 31 | te.goto(x1, y1) 32 | te.pendown() 33 | for t in range(0, WriteStep + 1): 34 | x = Bezier(Bezier(x1, x2, t / WriteStep), 35 | Bezier(x2, x3, t / WriteStep), t / WriteStep) 36 | y = Bezier(Bezier(y1, y2, t / WriteStep), 37 | Bezier(y2, y3, t / WriteStep), t / WriteStep) 38 | te.goto(x, y) 39 | te.penup() 40 | 41 | 42 | def Bezier_3(x1, y1, x2, y2, x3, y3, x4, y4): # 三阶贝塞尔函数 43 | x1 = -Width / 2 + x1 44 | y1 = Height / 2 - y1 45 | x2 = -Width / 2 + x2 46 | y2 = Height / 2 - y2 47 | x3 = -Width / 2 + x3 48 | y3 = Height / 2 - y3 49 | x4 = -Width / 2 + x4 50 | y4 = Height / 2 - y4 # 坐标变换 51 | te.goto(x1, y1) 52 | te.pendown() 53 | for t in range(0, WriteStep + 1): 54 | x = Bezier(Bezier(Bezier(x1, x2, t / WriteStep), Bezier(x2, x3, t / WriteStep), t / WriteStep), 55 | Bezier(Bezier(x2, x3, t / WriteStep), Bezier(x3, x4, t / WriteStep), t / WriteStep), t / WriteStep) 56 | y = Bezier(Bezier(Bezier(y1, y2, t / WriteStep), Bezier(y2, y3, t / WriteStep), t / WriteStep), 57 | Bezier(Bezier(y2, y3, t / WriteStep), Bezier(y3, y4, t / WriteStep), t / WriteStep), t / WriteStep) 58 | te.goto(x, y) 59 | te.penup() 60 | 61 | 62 | def Moveto(x, y): # 移动到svg坐标下（x，y） 63 | te.penup() 64 | te.goto(-Width / 2 + x, Height / 2 - y) 65 | te.pendown() 66 | 67 | 68 | def Moveto_r(dx, dy): 69 | te.penup() 70 | te.goto(te.xcor() + dx, te.ycor() - dy) 71 | te.pendown() 72 | 73 | 74 | def line(x1, y1, x2, y2): # 连接svg坐标下两点 75 | te.penup() 76 | te.goto(-Width / 2 + x1, Height / 2 - y1) 77 | te.pendown() 78 | te.goto(-Width / 2 + x2, Height / 2 - y2) 79 | te.penup() 80 | 81 | 82 | def Lineto_r(dx, dy): # 连接当前点和相对坐标（dx，dy）的点 83 | te.pendown() 84 | te.goto(te.xcor() + dx, te.ycor() - dy) 85 | te.penup() 86 | 87 | 88 | def Lineto(x, y): # 连接当前点和svg坐标下（x，y） 89 | te.pendown() 90 | te.goto(-Width / 2 + x, Height / 2 - y) 91 | te.penup() 92 | 93 | 94 | def Curveto(x1, y1, x2, y2, x, y): # 三阶贝塞尔曲线到（x，y） 95 | te.penup() 96 | X_now = te.xcor() + Width / 2 97 | Y_now = Height / 2 - te.ycor() 98 | Bezier_3(X_now, Y_now, x1, y1, x2, y2, x, y) 99 | global Xh 100 | global Yh 101 | Xh = x - x2 102 | Yh = y - y2 103 | 104 | 105 | def Curveto_r(x1, y1, x2, y2, x, y): # 三阶贝塞尔曲线到相对坐标（x，y） 106 | te.penup() 107 | X_now = te.xcor() + Width / 2 108 | Y_now = Height / 2 - te.ycor() 109 | Bezier_3(X_now, Y_now, X_now + x1, Y_now + y1, 110 | X_now + x2, Y_now + y2, X_now + x, Y_now + y) 111 | global Xh 112 | global Yh 113 | Xh = x - x2 114 | Yh = y - y2 115 | 116 | 117 | def transform(w_attr): 118 | funcs = w_attr.split(' ') 119 | for func in funcs: 120 | func_name = func[0: func.find('(')] 121 | if func_name == 'scale': 122 | global scale 123 | scale = (float(func[func.find('(') + 1: -1].split(',')[0]), 124 | -float(func[func.find('(') + 1: -1].split(',')[1])) 125 | 126 | 127 | def readPathAttrD(w_attr): 128 | ulist = w_attr.split(' ') 129 | for i in ulist: 130 | # print("now cmd:", i) 131 | if i.isdigit() or i.isalpha(): 132 | yield float(i) 133 | elif i[0].isalpha(): 134 | yield i[0] 135 | yield float(i[1:]) 136 | elif i[-1].isalpha(): 137 | yield float(i[0: -1]) 138 | elif i[0] == '-': 139 | yield float(i) 140 | 141 | 142 | def drawSVG(filename, w_color): 143 | global first 144 | SVGFile = open(filename, 'r') 145 | SVG = BeautifulSoup(SVGFile.read(), 'lxml') 146 | Height = float(SVG.svg.attrs['height'][0: -2]) 147 | Width = float(SVG.svg.attrs['width'][0: -2]) 148 | transform(SVG.g.attrs['transform']) 149 | if first: 150 | te.setup(height=Height, width=Width) 151 | te.setworldcoordinates(-Width / 2, 300, Width - 152 | Width / 2, -Height + 300) 153 | first = False 154 | te.tracer(100) 155 | te.pensize(1) 156 | te.speed(Speed) 157 | te.penup() 158 | te.color(w_color) 159 | 160 | for i in SVG.find_all('path'): 161 | attr = i.attrs['d'].replace('\n', ' ') 162 | f = readPathAttrD(attr) 163 | lastI = '' 164 | for i in f: 165 | if i == 'M': 166 | te.end_fill() 167 | Moveto(next(f) * scale[0], next(f) * scale[1]) 168 | te.begin_fill() 169 | elif i == 'm': 170 | te.end_fill() 171 | Moveto_r(next(f) * scale[0], next(f) * scale[1]) 172 | te.begin_fill() 173 | elif i == 'C': 174 | Curveto(next(f) * scale[0], next(f) * scale[1], 175 | next(f) * scale[0], next(f) * scale[1], 176 | next(f) * scale[0], next(f) * scale[1]) 177 | lastI = i 178 | elif i == 'c': 179 | Curveto_r(next(f) * scale[0], next(f) * scale[1], 180 | next(f) * scale[0], next(f) * scale[1], 181 | next(f) * scale[0], next(f) * scale[1]) 182 | lastI = i 183 | elif i == 'L': 184 | Lineto(next(f) * scale[0], next(f) * scale[1]) 185 | elif i == 'l': 186 | Lineto_r(next(f) * scale[0], next(f) * scale[1]) 187 | lastI = i 188 | elif lastI == 'C': 189 | Curveto(i * scale[0], next(f) * scale[1], 190 | next(f) * scale[0], next(f) * scale[1], 191 | next(f) * scale[0], next(f) * scale[1]) 192 | elif lastI == 'c': 193 | Curveto_r(i * scale[0], next(f) * scale[1], 194 | next(f) * scale[0], next(f) * scale[1], 195 | next(f) * scale[0], next(f) * scale[1]) 196 | elif lastI == 'L': 197 | Lineto(i * scale[0], next(f) * scale[1]) 198 | elif lastI == 'l': 199 | Lineto_r(i * scale[0], next(f) * scale[1]) 200 | te.penup() 201 | te.hideturtle() 202 | te.update() 203 | SVGFile.close() 204 | 205 | 206 | def drawBitmap(w_image): 207 | print('Reducing the colors...') 208 | Z = w_image.reshape((-1, 3)) 209 | 210 | # convert to np.float32 211 | Z = np.float32(Z) 212 | 213 | # define criteria, number of clusters(K) and apply kmeans() 214 | criteria = (cv2.TERM_CRITERIA_EPS, 10, 1.0) 215 | global K 216 | ret, label, center = cv2.kmeans( 217 | Z, K, None, criteria, 10, cv2.KMEANS_RANDOM_CENTERS) 218 | 219 | # Now convert back into uint8, and make original image 220 | center = np.uint8(center) 221 | res = center[label.flatten()] 222 | res = res.reshape(w_image.shape) 223 | no = 1 224 | for i in center: 225 | sys.stdout.write('\rDrawing: %.2f%% [' % ( 226 | no / K * 100) + '#' * no + ' ' * (K - no) + ']') 227 | no += 1 228 | res2 = cv2.inRange(res, i, i) 229 | res2 = cv2.bitwise_not(res2) 230 | cv2.imwrite('.tmp.bmp', res2) 231 | os.system('potrace.exe .tmp.bmp -s --flat') 232 | # print(i) 233 | drawSVG('.tmp.svg', '#%02x%02x%02x' % (i[2], i[1], i[0])) 234 | os.remove('.tmp.bmp') 235 | os.remove('.tmp.svg') 236 | print('\n\rFinished, close the window to exit.') 237 | te.done() 238 | 239 | 240 | if __name__ == '__main__': 241 | paser = argparse.ArgumentParser( 242 | description="Convert an bitmap to SVG and use turtle libray to draw it.") 243 | paser.add_argument('filename', type=str, 244 | help='The file(*.jpg, *.png, *.bmp) name of the file you want to convert.') 245 | paser.add_argument( 246 | "-c", "--color", help="How many colors you want to draw.(If the number is too large that the program may be very slow.)", type=int, default=32) 247 | args = paser.parse_args() 248 | K = args.color 249 | try: 250 | bitmapFile = open(args.filename, mode='r') 251 | except FileNotFoundError: 252 | print(__file__ + ': error: The file is not exists.') 253 | quit() 254 | if os.path.splitext(args.filename)[1].lower() not in ['.jpg', '.bmp', '.png']: 255 | print(__file__ + ': error: The file is not a bitmap file.') 256 | quit() 257 | bitmap = cv2.imread(args.filename) 258 | if bitmap.shape[0] > GetSystemMetrics(1): 259 | bitmap = cv2.resize(bitmap, (int(bitmap.shape[1] * ( 260 | (GetSystemMetrics(1) - 50) / bitmap.shape[0])), GetSystemMetrics(1) - 50)) 261 | drawBitmap(bitmap) 262 | -------------------------------------------------------------------------------- /potrace.exe: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/tfx2001/python-turtle-draw-svg/69a0fcadf4477a13d1e130190dcc214ee9561ee6/potrace.exe -------------------------------------------------------------------------------- /requirements.txt: -------------------------------------------------------------------------------- 1 | -i https://pypi.org/simple 2 | beautifulsoup4==4.6.0 3 | lxml==4.2.1 4 | numpy==1.14.5 5 | opencv-python==3.4.1.15 6 | pywin32==223 7 | --------------------------------------------------------------------------------