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Converting a complex boundary to an aea
Posted 19 mag 2015, 16:47 GMT-4 Geometry Version 5.0 2 Replies
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Hello,
I have a problem building a geometry. After searching in the community without finding a solution I decided to start a new discussion.
Here is the short form of the Problem:
Its a 2D-Model, rotation-symmtric to the r-axis (so defining is done in r-z-plane).
I know the boundary of a spacer (Polynomial grad 4, etc.), so I defined this boundary piecewise.
And here ist the Question:
How can I convert the boundary to an area, to define a material for the area surrounded by the boundary? (like it is easily done for simple boundaries like circle, or rectangular shapes)
Here some additional information regarding the boundary:
There are several pieces of the boundary:
1. four curves defined by polynoms with grade 4
2. many linear pieces
3. two parts of a circle
4. some curves, that are complex formed. Here I only know points of the boundary. So I used a polygon, based on the points.
I tried to combine all elements to on boundary and made shure, that the boundary is closed, but I have not found a possibility to define this boundary as area.
Thank you for your help.
Hannes.
I have a problem building a geometry. After searching in the community without finding a solution I decided to start a new discussion.
Here is the short form of the Problem:
Its a 2D-Model, rotation-symmtric to the r-axis (so defining is done in r-z-plane).
I know the boundary of a spacer (Polynomial grad 4, etc.), so I defined this boundary piecewise.
And here ist the Question:
How can I convert the boundary to an area, to define a material for the area surrounded by the boundary? (like it is easily done for simple boundaries like circle, or rectangular shapes)
Here some additional information regarding the boundary:
There are several pieces of the boundary:
1. four curves defined by polynoms with grade 4
2. many linear pieces
3. two parts of a circle
4. some curves, that are complex formed. Here I only know points of the boundary. So I used a polygon, based on the points.
I tried to combine all elements to on boundary and made shure, that the boundary is closed, but I have not found a possibility to define this boundary as area.
Thank you for your help.
Hannes.
2 Replies Last Post 22 mag 2015, 09:53 GMT-4
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Posted:
9 years ago
Hi,
If the curves form a closed area, you should be able to convert the area into a domain (a solid) by adding a Convert to Solid node (from the Geometry>Conversions menu). In the Convert to Solid node's Settings window, add all curve objects to the Input objects list under Input, and then click Build Selected or Build All Objects. If the selected curves do not form a closed area, the resulting solid becomes empty, and a warning that the output object is empty appears.
Best regards,
Magnus Ringh, COMSOL
If the curves form a closed area, you should be able to convert the area into a domain (a solid) by adding a Convert to Solid node (from the Geometry>Conversions menu). In the Convert to Solid node's Settings window, add all curve objects to the Input objects list under Input, and then click Build Selected or Build All Objects. If the selected curves do not form a closed area, the resulting solid becomes empty, and a warning that the output object is empty appears.
Best regards,
Magnus Ringh, COMSOL
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Posted:
9 years ago
Hi Magnus Ringh,
thank you. It works after I looked very carefully at the transfer points of my splittet boundary to see, that it is not closed. There was a gap at the transfer points with about 6.5 um length.
Best regards.
Hannes Pietsch.
thank you. It works after I looked very carefully at the transfer points of my splittet boundary to see, that it is not closed. There was a gap at the transfer points with about 6.5 um length.
Best regards.
Hannes Pietsch.