Request - Add curves as input to PointDeviation. PointDeviation would automatically extract points from the curves to use as input for the comparison. This would be similar to how PointDeviation can use surfaces as input (added in V6).
I frequently need to check how well a surface fits a set of curves. My current proceedure is to use Divide on the curves to create a set of points, and then use those points as input. It would be simpler to use the curves directly as input.
One of the issues is NURBS curves do not have these points. They are cooked up at the time you turn on display of “Edit Points” (on the curve), “Control Points” (on cvs), or Knots.
This will take time and some mechanism will be need to guess which kind of points you think you need.
I divided the domain of the curve by 20 so you get 21 points per curve. Do you want the same behavior for polylines or just the points of the polyline?
@John_Brock Example file for testing curves as input. PtDevCrvTest01.3dm (275.2 KB) The file also contains a set of points from the curves for comparison purposes.
I need to measure a surface edge againt a (or several) second surface, showing me the MIN and MAX distances, so I can manipulate the first surface until I meet my requirements, for example the gap opens up evenly from 1.2mm to 2.5mm. Maybe it only opens up from 1.252mm to 2.478mm. This would be fine as it would be within the desired range and the rate of change would be even and constant, without getting smaller somewhere in between for example.
I’m not trying to measure the distance between two edges, I want to measure the distance between a surface edge and a second surface just like you measure a curve against a surface.
@Cadworx This is probably not quite as simple as you want:
Start PointDeviation (new version in WIP 7.0.20182.13135, 6/30/2020 or later).
For object to extract points from:
Type SubCrv and enter, click on the surface edge, then click on the ends of the edge to select the entire length of the edge. Enter
For object to test against select the other surface. Enter
View results
Correct, and that is why I proposed to add “Edge” as input to PointDeviation
Besides Continuity, Distance-Analysis between Curves and Surfaces, and Edges and Surfaces are valuable tools for topolgy control and precise analysis of your geometry.
Distance-Analysis is used for all geometry that has a relation to each other but that do not necessarily touch.
Just a few examples.
Positioning sensors and framework underneath visible surfaces
Safety analysis
Thickness analysis
Surface overcrowning
Flange length analysis
Offset analysis
Building and measuring gaps,
controling flushness of parts,
measuring the chord of a fillet,
controlling even surface lead in ,
patch layout
controling surface extrapolation,
controlling blend-curves across surfaces.
building linear Corner-Fillets
…the list goes on. So please consider this. Maybe @JohnBrock or @PascalGolay have an idea how to implement this into an existing tool. Edge distance to surface, and edge distance to curve could also be part of EdgeContinuity.