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Mesh Tool: prevent coincident nodes from being created when space clicking contour lines

Paul King
Mentor

Currently, when creating contours in a mesh from the linework on a surveyor's supplied dwg file, under certain circumstances space clicking the surveyor's line can create duplicate nodes or entire duplicate contours, that co-exist exactly in 3D space but are otherwise undetectable to the eye but that trigger otherwise inexplicable behaviours.

 

I have reported this as a bug, but was told this is just a 'limitation of the tool' (which I think is semantics), and that any fix needed to be submitted as a wish.

 

Symptoms of duplicate mesh nodes can include:

 

  • Manually dragging a node on a mesh contour line reveals another contour line beneath.
  • Space clicking a 2D line with mesh selected and mesh tool active may appear initially fail to create a contour, but trying again causes a mesh contour line to appear that extends only part way along before looping back to the start.

 

These issues can arise even after confirming there are no duplicate lines or gaps in the source linework.  Possibly as a function of mesh complexity or multiple SEOs in the mesh, possibly as a result of rounding errors if the project contains far distant objects, and possibly exacerbated by lagging dynamic feedback resulting in the user clicking based on out of date information displaying for current mouse position for a second too long.

 

Until meshes are upgraded to allow for concavities or genuinely vertical surfaces, where contours that are coincident in plan would make sense (vertical banks etc), it should not be possible for more than one node or contour line to occupy a given plan position.

 

Perhaps a mesh clean-up tool or function could be added to remove duplicate mesh nodes?

Status
Open

with 3/200 Votes 66.666666666667%

Wish details