I can't fill the imported stl file properly

PPony

When I fill in, the boundary particles fill the entire fill domain instead of the shape I imported into the model，what should I do ?Is this related to the stl file I imported, how can I import the entity file？autofill also doesn‘t work

        <matrixreset />

        <setmkbound mk="2"/>

        <drawfilestl file="external_yuanqiu.stl" objname="yuanqiu" autofill="false">

          <drawscale x="0.001" y="0.001" z="0.001" />

  </drawfilestl>

<fillbox x="3" y="0" z="0">

        <modefill>void</modefill>

        <point x="2" y="-0.3" z="-0.2" />

        <size x="2" y="0.6" z="1.2" />

        </fillbox>

PPony

@Alex @Asalih3d Can you help me ,I think my fill point is correct

Asalih3d

https://forums.dual.sphysics.org/discussion/2224/i-cant-fill-the-imported-stl-file-properly

Download any Blender version, latest should be 3.x something. Import your current stl file into blender and go to edit mode and click the arrow in yellow on top:

Then you can visualize your normals of the stl. If your fill point is correct, then the issue is your normals. To fix this in edit mode press as follows:

F3 --> Search for "Flip Normals", click on the option

Then if you go into wireframe view, you see the normals are now inwards:

Go back to object mode, select the object and re-export this file as stl. Now it should work properly in DualSPHysics.

Please note that I have forgot which normal direction is the correct one, so take this note as just a description of how to fix the issue. If you do it correctly it will fix the issue, try again if you do not have much experience with Blender and made a mistake first time.

Kind regards

Alex

You can also try: autofill="true"

Regards

PPony

https://forums.dual.sphysics.org/discussion/comment/4889#Comment_4889

Thank you ,I will have a try