[Feature Request] Gephi exported svg are different from its's preview

[LaoshuBaby]

Expected Behavior

Exported SVG are using straight line for connection between nodes, the same as preview in Gephi.

Current Behavior

Connections between nodes in exported svg/pdf/png are curved ????

Possible Solution

Notice the d="M 721.904907,-2560.862549 A 1466.726016,1466.726016 0,0 1,2294.601074,-3309.099121", it means a arc, so I use this part of python code modify it to "L" in my local environment

import re
import argparse

def convert_arc_to_line(svg_content):
    arc_pattern = r'M\s+([-\d.]+),([-\d.]+)\s+A\s+[-\d.]+,[-\d.]+\s+\d,\d\s+\d,([-\d.]+),([-\d.]+)'
    def line_replacement(match):
        start_x, start_y, end_x, end_y = match.groups()
        return f'M {start_x},{start_y} L {end_x},{end_y}'
    return re.sub(arc_pattern, line_replacement, svg_content)

def main(input_file, output_file):
    with open(input_file, 'r', encoding='utf-8') as file:
        svg_content = file.read()
    svg_content = convert_arc_to_line(svg_content)
    with open(output_file, 'w', encoding='utf-8') as file:
        file.write(svg_content)

if __name__ == "__main__":
    parser = argparse.ArgumentParser(description='Convert arcs to lines in an SVG file.')
    parser.add_argument('input', type=str, help='Input SVG file name')
    parser.add_argument('output', type=str, help='Output SVG file name')
    args = parser.parse_args()
    
    main(args.input, args.output)

I know that Gephi is a project with Java as the main development language, but unfortunately I don’t know Java, so I can’t directly open a PR to modify the code responsible for export in Gephi.

Steps to Reproduce

1. Open some thing, such as a .gv file or graphml, what ever.
2. Choose a layout you like, and run
3. Export to svg/png/pdf

Context

Gephi auto generated svg export file are using source code like this

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
    "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd" >
<svg contentScriptType="text/ecmascript" width="17485.0"
     xmlns:xlink="http://www.w3.org/1999/xlink" zoomAndPan="magnify"
     contentStyleType="text/css"
     viewBox="-8724.000000 -8701.000000 17485.000000 17426.000000"
     height="17426.0" preserveAspectRatio="xMidYMid meet"
     xmlns="http://www.w3.org/2000/svg" version="1.1">
    <g id="edges">
        <path stroke-linecap="round" fill="none" class="id_153269 id_2707990"
              d="M 721.904907,-2560.862549 A 1466.726016,1466.726016 0,0 1,2294.601074,-3309.099121"
              stroke="#000000" stroke-width="1.0" stroke-opacity="1.0"/>

Correct svg source code should be like:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
    "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd" >
<svg contentScriptType="text/ecmascript" width="17485.0"
     xmlns:xlink="http://www.w3.org/1999/xlink" zoomAndPan="magnify"
     contentStyleType="text/css"
     viewBox="-8724.000000 -8701.000000 17485.000000 17426.000000"
     height="17426.0" preserveAspectRatio="xMidYMid meet"
     xmlns="http://www.w3.org/2000/svg" version="1.1">
    <g id="edges">
        <path stroke-linecap="round" fill="none" class="id_153269 id_2707990"
              d="M 721.904907,-2560.862549 L 2294.601074,-3309.099121"
              stroke="#000000" stroke-width="1.0" stroke-opacity="1.0"/>

Your Environment

Product Version: Gephi 0.10.1 202301172018 Java: 11.0.17; OpenJDK 64-Bit Server VM 11.0.17+8 系统: Windows 11版本 10.0 运行于amd64上; GBK; zh_CN (gephi) 用户目录: C:\Users\laoshubaby\AppData\Roaming\gephi\0.10 高速缓存目录: C:\Users\laoshubaby\AppData\Local\gephi\Cache\0.10