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Export only outline/contour in SVG

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  • 2022-08-18 at 9:27 pm #55019
    carlsky
    Participant

    Hello! :bye:
    I am using SVG Renderer in a project, to convert 3D object to 2D, but the SVG Renderer is exporting whole wireframe.
    My goal is to convert this SVG to DXF and use it on a laser cutter, so I need only contours without inner edges/verices.
    Is there a way to export only an outline/contour of objects?

    2022-08-22 at 3:18 pm #55096
    Ivan Lyubovnikov
    Staff

    Hi, can you provide a link or a project to test that?

    There’s an example of using SVG renderer here: https://cdn.soft8soft.com/demo/examples/index.html?q=svg#svg_sandbox – but it only renders edges occasionally for semi-transparent objects.

    Co-founder and lead developer at Soft8Soft.

    2022-08-22 at 7:56 pm #55098
    carlsky
    Participant

    You see,
    when we open the exported .svg in the browser the drawing is filled and we can not see the wireframe, but when we open .svg in CAD Application eg. FreeCAD then wireframe is visible (gray color inside object). See attachements.

    I have found this package:
    https://github.com/neurofuzzy/three-plotter-renderer

    but I must try to webpack it, and test it in browser. This package may be a solution ?!?! :bye:

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    2022-08-24 at 2:56 pm #55204
    Ivan Lyubovnikov
    Staff
    carlsky wrote:

    I have found this package:
    https://github.com/neurofuzzy/three-plotter-renderer

    Yeah, I tested that package and it works. I made a simple app as an example: plot_render.zip
    Unfortunately it lacks performance and can hang for a while for medium/heavy-poly objects.

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    Co-founder and lead developer at Soft8Soft.

    2022-08-25 at 10:19 am #55236
    carlsky
    Participant

    Thank you for the response!
    I will test it out on my complicated models and check the execution time :)
    All the best !! :bye:

    2022-11-03 at 4:58 pm #57072
    kazufen
    Participant

    Hello Ivan,

    first of all thank you for preparing the SVG test app. I think that is exactly what I am looking for for my Verge 3D project, because I am currently trying to verify if we can add in a feature to output a technical drawing into a product configurator.

    Unfortunately, when I hit the “Download” button in the app that you kindly provided, I get a .svg which I can not open. I always get an error. Please find my screenshot attached. I also can’t open the .svg in Illustrator. I use Verge 4.0.1 by the way. Should your ZIP file work out of the box or do I need to set some things up first?

    Cheers! :)

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    2022-11-07 at 6:42 am #57106
    Ivan Lyubovnikov
    Staff

    Hi kazufen,

    The three-plotter-renderer package used for generating SVGs adds certain attributes specific to inkscape, so I guess that’s the problem. To solve that you can open the downloaded SVG file in inkscape and save it as a plain SVG file to get rid of such attributes.

    Or you can also comment them out in the source code and rebuild the package: https://github.com/neurofuzzy/three-plotter-renderer/blob/main/src/plotter-renderer.js#L80-L97

    Co-founder and lead developer at Soft8Soft.

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