zoukankan      html  css  js  c++  java
  • CairoSVG

    CairoSVG - Convert SVG to PNG or PDF - Contents

    User Documentation

    AuthorGuillaume Ayoub
    Date

    Installation

    Dependencies

    CairoSVG is written in pure Python and only depends on Pycairo. It is known to work with Python 2.6, 2.7, 3.2 and 3.3.

    Linux and OS X users certainly have Python already installed. For Windows users, please install Python thanks to the adequate installer.

    CairoSVG can use lxml to parse the SVG file, and tinycss plus cssselect to apply CSS not included in thestyleattribute of the tags. If these packages are not available, CSS will only be supported in thestyleattributes.

    Embedded raster images other than PNG are handled by Pillow.

    CairoSVG

    CairoSVG can be freely downloaded on the project website, download section. Just get the file and unzip it in a folder of your choice.

    Command-Line Usage

    Description

    Here is the simple CairoSVG usage:

    Usage: cairosvg.py filename [options]
    
    Options:
      -h, --help            show this help message and exit
      -v, --version         show version and exit
      -f FORMAT, --format=FORMAT
                            output format
      -d DPI, --dpi=DPI     ratio between 1in and 1px
      -o OUTPUT, --output=OUTPUT
                            output filename

    Supported output formats arepdf,psandpng(default ispdf). The default output is the standard output. If an output filename is given, the format is automatically chosen according to the extension.

    Thedpioptions sets the ratio between pixels and real-life units such as millimeters and inches (as explained in the specification).

    Moreover, if-is used as filename, CairoSVG reads the SVG string from the standard input.

    Examples

    Here are some usage examples:

    # Convert to pdf, write to standard output
    cairosvg test.svg
    
    # Convert to png, write to standard output
    cairosvg test.svg -f png
    
    # Convert to ps, write to test.ps
    cairosvg test.svg -o test.ps
    
    # Convert an SVG string to pdf, write to standard output
    echo "<svg height='30' width='30'><text y='10'>123</text></svg>" 
         | cairosvg -
    

    API

    Thecairosvgmodule offers 4 functions:

    • svg2pdf,
    • svg2png,
    • svg2ps, and
    • svg2svg(!).

    These functions expect one of these parameters:

    • bytestring, a byte string containing SVG, or
    • url, an URL or a filename, or
    • file_obj, a file-like object.

    If thewrite_toargument is provided (filename or file-like object), the output is written there. Otherwise, the function returns a byte string.

  • 相关阅读:
    MetaNamespaceKeyFunc
    golang dlv 调式成员函数
    golang 编译 添加debug gdb
    code-generator
    k8s 自定义informer
    kube-batch ——pod 和task
    kubernetes-handbook informer
    kube batch scheduler
    k8s-scheduler-extender-example
    volcano 快速开始
  • 原文地址:https://www.cnblogs.com/lexus/p/3505208.html
Copyright © 2011-2022 走看看