Adding Points to a Surface...

[accarr03]

I have created a surface with a point group.  I have a few points on the edge of my surface that need to be added to the surface.  I can add them to the point group, but when I updated my surface nothing happens.  The triangles don't extend to my newly added points and my profile of the area doesn't show a surface where these new points should be.

Has this ever happened to anyone else?  As far as I can tell, the new points I want to add have the same properties as the other points in the point group, they are cogo points.  Any advice would be appreciated, thanks!

[Jay_B · Accepted solution]

Did you "Update" the existing Point Group and "Rebuild" the surface?

Is there an old boundary in the surface definition inside the added points?

[accarr03]

I did Update and Rebuild.....good call on the boundary, there is one.  I didn't create this surface, but if I delete the boundary it adds in the points I need. I'll just have to delete some lines to make up for the boundary.  Thanks!

[Jay_B]

 "I'll just have to delete some lines to make up for the boundary."

Not sure I follow here but the old boundary can be removed from the definition and then add a new boundary

outside the newly added points.

[BrianHailey · Accepted solution]

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@Anonymous wrote:

 "I'll just have to delete some lines to make up for the boundary."

Not sure I follow here but the old boundary can be removed from the definition and then add a new boundary

outside the newly added points.

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Or, just edit the boundary if it's still in the drawing. If it's not, insert it and then edit it. No need to get rid of it and add in a new one (unless the changes are very drastic and it would be easier to recreate then edit).

[rkmin]

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@BrianHailey wrote:

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Or, just edit the boundary if it's still in the drawing. If it's not, insert it and then edit it. No need to get rid of it and add in a new one (unless the changes are very drastic and it would be easier to recreate then edit).

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How do you edit the boundary and do you have to rebuild the surface after edit?

[doni49]

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@rkmin wrote:

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@BrianHailey wrote:

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Or, just edit the boundary if it's still in the drawing. If it's not, insert it and then edit it. No need to get rid of it and add in a new one (unless the changes are very drastic and it would be easier to recreate then edit).

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How do you edit the boundary and do you have to rebuild the surface after edit?

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You'll be prompted for a name of the boundary.  Then for a closed shape.  Select the boundary shape.

Now if you alter the boundary shape (using the Grip edits), the surface will update automatically.

[doni49]

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@doni49 wrote:

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@rkmin wrote:

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@BrianHailey wrote:

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Or, just edit the boundary if it's still in the drawing. If it's not, insert it and then edit it. No need to get rid of it and add in a new one (unless the changes are very drastic and it would be easier to recreate then edit).

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How do you edit the boundary and do you have to rebuild the surface after edit?

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You'll be prompted for a name of the boundary.  Then for a closed shape.  Select the boundary shape.

Now if you alter the boundary shape (using the Grip edits), the surface will update automatically.

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EDIT:  if you haven't already added a boundary shape yet, then you can export the Surface "border" which will create a closed polyline.  Then add that as a boundary (I do this all the time if I just need to alter one portion of what C3D already sees as the border/boundary.