[Partially solved] Selected element identification in .inp file

[EkaitzEsteban]

remember volumes of the famous cantilever starts with 149 thus

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Gui.getDocument("FemCalculixCantilever3D").getObject("Box_Mesh").Visibility=True
A=Gui.getDocument("FemCalculixCantilever3D").getObject("Box_Mesh")
A.ElementColor={149:(1,0,0)}

It seams if the element could not be colored all or non (which means all will be green) elements are colored. BTW the code ... https://github.com/FreeCAD/FreeCAD/blob ... #L178-L192 and https://github.com/FreeCAD/FreeCAD/blob ... #L631-L652



screen.jpg

Thank you bernd. it partially works.

Maybe I'm digging too much (sorry for my insistence), but I found another bugs or something that it is not compatible.

Here is a bug 1:

bug_elementColor.png (681.24 KiB) Viewed 1228 times

The visibility changes If you select show inner true or show inner false. Volumes are partially showed...

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FreeCADGui.getDocument("FemCalculixCantilever3D").getObject("Box_Mesh").ShowInner = False
FreeCADGui.getDocument("FemCalculixCantilever3D").getObject("Box_Mesh").ShowInner = True

Here is a bug 2:

If you change the display mode to faces + wireframe + nodes

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FreeCADGui.getDocument("FemCalculixCantilever3D").getObject("Box_Mesh").DisplayMode = u"Faces, Wireframe & Nodes"

bug_nodes.PNG (55.99 KiB) Viewed 1228 times

Several nodes changes their color and not follows the Point color properties, e.g:

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FreeCADGui.getDocument("FemCalculixCantilever3D").getObject("Box_Mesh").PointColor = (0.33,0.33,1.00)

Here is a bug 3:

By changing the colors of the materials the cantilever beam becomes a superstar

bug_materials.png (332 KiB) Viewed 1228 times

BTW I have another two question related with this visual handling options:

1-) How can I change the colors of more than one element at the same time? (I think it is not possible...)
2-) How can I return to the original colors of the mesh?

Thank you so much,

best regards,

Ekaitz.

[bernd]

I knew it before ... The cantilever is the superstar

try:

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A.ElementColor={149:(1,0,0), 150:(1,0,9)}
A.ElementColor={}

I will try to have a look at all your inputs ...

[EkaitzEsteban]

I knwew it before ... The cantilever is ths superstar

try:

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A.ElementColor={149:(1,0,0), 150:(1,0,9)} # Colored two elements
A.ElementColor={} # Returns to the original ones 

I will try to have a look at all your inputs ...

Awesone! Both code lines works perfectly

[EkaitzEsteban]

Hello,

Regarding the visualization of the elements from a mesh. I find another bug or mismatch.

I my mesh two elements are highlighed in red, solely when I selected one.

Bug_ElementColorTwoFaces.PNG (88.88 KiB) Viewed 1211 times

I do the same in cantilever bean example and looks like correct.

CantileverColorsOK.PNG (46.96 KiB) Viewed 1211 times

The differences between these two examples is that my box has more than one group (4 exactly), whereas in the cantilever beam the number of groups is 0.

Is there any mismatch here, between color elements and number of groups?

best regards,
Ekaitz.

[bernd]

It should not have to do with groups. Would you post your mesh an the the code to produce the problem?

[EkaitzEsteban]

It should not have to do with groups. Would you post your mesh an the the code to produce the problem?

Hi bernd,

Yes absolutely,

I make the following:

1-) open SimpleBox.FCStd
2-) Write in the python API: the following code

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Gui.ActiveDocument.getObject("FEMMeshGmsh").ElementColor={59:(1,0,0)}

Two different faces are highlighted in red.

Furthermore, I select node 16 which is solely in one element: 59. I double check the position of this node that in the .inp file ['59, 26, 41, 8, 6, 59, 45, 30, 27, 44, 16\n'] --> element 59 is a tetra10 C3D10 type element where the nodes on the 4 vertex of the tetrahedron are 26, 41, 8, 6 respectively, whereas intermediate nodes are the following 6: 59, 45, 30, 27, 44, 16 (The selected one!!!)

So, I guess that element 59 should be highlighted in red, but this is not the case...

I attach a simple figure of my problem:

ElementNodeBug.PNG (96.88 KiB) Viewed 1196 times

best regards,
Ekaitz.

[bernd]

issue #3624 I'm quite busy ATM, means I did not have the time to have a look at this. Furthermore it is not that easy to tackle down problems in the mesh view provider for me. It takes some time to get into it. I made an issue to keep the problems.

bernd

[EkaitzEsteban]

issue #3624 I'm quite busy ATM, means I did not have the time to have a look at this. Furthermore it is not that easy to tackle down problems in the mesh view provider for me. It takes some time to get into it. I made an issue to keep the problems.

bernd

Thank you bernd.

The possibility to select nodes is enough for my project (we got it ). The colors of the elements is only for enhancing the visualization, it is not vital for my project. If it is possible to improve the visualization in future versions of FreeCAD, it would be awesome!

best regards,
Ekaitz.