Wrong line width for fillings in exported SVG

[luoyu-123]

Dear Mr. Manfred Moitzi:
When I use the ezdxf plug-in to export the SVG image format, the marked arrow block in the exported image is incomplete. Is there any way to set the integrity of the arrow block?
Saved svg picture：

Saved dxf file：

Best wishes

[mbway]

are you able to share a dxf file that has this issue? it might make the problem easier to track down.

Have you tried saving as a png as well to see whether that makes a difference. the problem could potentially be the viewer you are viewing the svg in?

I don't think the matplotlib backend uses matplotlib arrow rendering and instead draws filled polygons so it's surprising that the arrows look slightly misplaced (which can happen in matplotlib by passing the wrong value of length_includes_head to ax.arrow() but that doesn't seem to be the issue here if ax.arrow() is not being used)

[mozman]

As already remarked in a previous issue: Please post your questions as issues, that's what issues for -- if your question may helpful to others I will convert the issue to discussions. The conversion from discussions to issues is yet not possible!

[luoyu-123]

Okay, this is the dxf file I want to convert
4_11_39.txt
I changed the dxf file to a txt file, if necessary, please change the .txt suffix to .dxf suffix, thank you very much
This is the converted Python program
dxf_to_svg.txt
Please change the .txt suffix to .py if necessary, thank you very much for your help
best wishes

[luoyu-123]

In addition, saving as png format is the same, thank you very much

[mozman]

Bug in the matplotlib backend should be fixed:

[luoyu-123]

Excuse me, can you give me your test code? Is it because I set the parameters incorrectly during the conversion, thank you very much
Best wishes

[mozman]

import ezdxf
from ezdxf.addons.drawing import matplotlib

doc = ezdxf.readfile('4_11_39.dxf')
matplotlib.qsave(
    doc.modelspace(), '1231313.svg', bg="#FFFFFF", backend='svg', dpi=350,
    params={
        'lineweight_scaling': 0.05,
        'min_lineweight': 0.01,
    })

[luoyu-123]

Thank you Mr. Manfred Moitzi
best wishes