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Create points/lines on sloping, twisting vertical face surfaces

Question asked by Dean Teska on Aug 3, 2018
Latest reply on Aug 6, 2018 by Dean Teska

Thanks in advance for those that take the time to chime in . . . .

We are trying to accomplish a task that seems like it should be easier.  Please see attachment for discussion.

 

We have battered bridge supports that have limited geometric data.  We were able to build the top and bottom using data provided, but there is a construction joint at elevation 605.  We are trying to generate a box (as shown in cyan, provided by another firm, but we need to compute ourselves for confidence and liability purposes) at elevation 605 that is bounded by the exterior faces of the bridge support.  We have accomplished this in two different methods . . .but both are somewhat tedious methods.

 

1.  Create contour at elevation 605 on each face, then connect or reduce vertices but dimensions are not checking out when trying to clean up this data (no option to turn off contour smoothing may be causing the issue).  The theory is that each face 605 contour line should be four line segments with two vertices each, but there seems to be horizontal discrepancies and a lot of manual line editing to reduce vertices just to discover some anomalies.  A lot of tinkering for one rectangle box.

 

2.  Create planar surface at elevation 605, merge that surface with (for example) north face, choose 'keep minimum' and then snap a break line on the north face where the surfaces 'intersect' line is.  (See page 3 of pdf)  Repeat for south face and connect break lines by snapping.  Still a little tedious.

 

Any ideas are welcome.  We feel we have some pretty advanced BC-HCE users at our company and these are the best options we can come up with at the moment.

 

Thanks

 

Dean

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