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标题: 30元求potrace批转换命令行 [打印本页]

作者: 玉说还休 时间: 2019-4-11 21:36 标题: 30元求potrace批转换命令行

本帖最后由玉说还休于 2019-4-11 22:03 编辑

potrace是个位图转矢量的一个程序。现在需要一个win下的转换命令，能帮我做成bat最好。
支付方式：微信红包

Linux下批量转换png为svg的脚本
#!/bin/bash

File_png="${1?:Usage: $0 file.png}"

if [[ ! -s "$File_png" ]]; then
  echo >&2 "The first argument ($File_png)"
  echo >&2 "must be a file having a size greater than zero"
  ( set -x ; ls -s "$File_png" )
  exit 1
fi

File="${File_png%.*}"

convert "$File_png" "$File.pnm"       # PNG to PNM
potrace "$File.pnm" -s -o "$File.svg"  # PNM to SVG
rm "$File.pnm"                      # Remove PNM

https://www.orcode.com/question/418130_k1d372.html

附
potrace 1.15. Transforms bitmaps into vector graphics.

Usage: potrace [options] [filename...]
General options:
-h, --help                - print this help message and exit
-v, --version             - print version info and exit
-l, --license             - print license info and exit
File selection:
filename                - an input file
-o, --output filename    - write all output to this file
--                      - end of options; 0 or more input filenames follow
Backend selection:
-b, --backend name       - select backend by name
-b svg, -s, --svg       - SVG backend (scalable vector graphics)
-b pdf                   - PDF backend (portable document format)
-b pdfpage                - fixed page-size PDF backend
-b eps, -e, --eps       - EPS backend (encapsulated PostScript) (default)
-b ps, -p, --postscript - PostScript backend
-b pgm, -g, --pgm       - PGM backend (portable greymap)
-b dxf                   - DXF backend (drawing interchange format)
-b geojson                - GeoJSON backend
-b gimppath             - Gimppath backend (GNU Gimp)
-b xfig                   - XFig backend
Algorithm options:
-z, --turnpolicy policy - how to resolve ambiguities in path decomposition
-t, --turdsize n          - suppress speckles of up to this size (default 2)
-a, --alphamax n          - corner threshold parameter (default 1)
-n, --longcurve          - turn off curve optimization
-O, --opttolerance n    - curve optimization tolerance (default 0.2)
-u, --unit n             - quantize output to 1/unit pixels (default 10)
-d, --debug n             - produce debugging output of type n (n=1,2,3)
Scaling and placement options:
-P, --pagesize format    - page size (default is letter)
-W, --width dim          - width of output image
-H, --height dim          - height of output image
-r, --resolution n[xn]    - resolution (in dpi) (dimension-based backends)
-x, --scale n[xn]       - scaling factor (pixel-based backends)
-S, --stretch n          - yresolution/xresolution
-A, --rotate angle       - rotate counterclockwise by angle
-M, --margin dim          - margin
-L, --leftmargin dim    - left margin
-R, --rightmargin dim    - right margin
-T, --topmargin dim       - top margin
-B, --bottommargin dim    - bottom margin
--tight                   - remove whitespace around the input image
Color options, supported by some backends:
-C, --color #rrggbb       - set foreground color (default black)
--fillcolor #rrggbb       - set fill color (default transparent)
--opaque                - make white shapes opaque
SVG options:
--group                   - group related paths together
--flat                   - whole image as a single path
Postscript/EPS/PDF options:
-c, --cleartext          - do not compress the output
-2, --level2             - use postscript level 2 compression (default)
-3, --level3             - use postscript level 3 compression
-q, --longcoding          - do not optimize for file size
PGM options:
-G, --gamma n             - gamma value for anti-aliasing (default 2.2)
Frontend options:
-k, --blacklevel n       - black/white cutoff in input file (default 0.5)
-i, --invert             - invert bitmap
Progress bar options:
--progress                - show progress bar
--tty mode                - progress bar rendering: vt100 or dumb

Dimensions can have optional units, e.g. 6.5in, 15cm, 100pt.
Default is inches (or pixels for pgm, dxf, and gimppath backends).
Possible input file formats are: pnm (pbm, pgm, ppm), bmp.
Backends are: svg, pdf, pdfpage, eps, postscript, ps, dxf, geojson, pgm,
gimppath, xfig.

作者: Batcher 时间: 2019-4-11 21:45

http://potrace.sourceforge.net/#downloading
这不是有Windows版本的吗，你想做成什么效果？

作者: 玉说还休 时间: 2019-4-11 21:57

回复 2# Batcher

就是，现在我可以把单张转换，如：potrace -s -q C:\QG\45.bmp 这样就能转换出一张，但是一个文件夹里比如有好几千张，我就得重复这么做几千次，好累啊。所以如果有个简单的方法可以自动处理就好

作者: zaqmlp 时间: 2019-4-11 22:16

@echo off
set info=互助互利,支付宝扫码头像,感谢赞助
rem 有问题,可加QQ956535081及时沟通
rem 把convert.exe、potrace.exe跟bat放一起
title %info%
start mshta VBScript:Execute("msgbox(""%info%""):close")
cd /d "%~dp0"
for /f "delims=" %%a in ('dir /a-d/b/s *.png') do (
    convert.exe "%%a" "%%~dpna.pnm"
    potrace.exe "%%~dpna.pnm" -s -o "%%~dpna.svg"
    del "%%~dpna.pnm"
)
pause
复制代码

作者: Batcher 时间: 2019-4-11 22:23

回复 3# 玉说还休

@echo off
cd /d "C:\QG"
for /f "delims=" %%i in ('dir /b /a-d *.bmp') do (
    potrace -s -q "%%i"
)
复制代码

作者: 玉说还休 时间: 2019-4-11 23:05

回复 4# zaqmlp

多谢zaqmlp大大，已完美解决。

作者: 玉说还休 时间: 2019-4-11 23:07

回复玉说还休
Batcher 发表于 2019-4-11 22:23

多谢Batcher大，由于zaqmlp大先一步提供方案，我就选zaqmlp大的解决方案了，多谢辛苦帮助解决。

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