topic DatumPlane SetCurve problems in Revit API Forum

DatumPlane SetCurve problems

bosborne — Wed, 10 Feb 2016 15:34:19 GMT

I am trying to use DatumPlane.SetCurveInView to duplicate 2d extents of grids across views. I am taking a reference view and using GetCurvesInView to get the curve to set with. This works fine for views that are essentially copies of the primary view (Same Associated Level)

But when I attempt it for plan views that are at a different level than the reference plan view, it does not work. Which makes sense....the ref curve is not at the correct elevation.

No problem, I'll use Curve.CreateTransformed(Transform.CreateTranslation(XYZ(0,0,offset))) where offset is the Z value (level elevation) of my new view minus the Z value of the reference level. But this fails for some reason. The error states that the curve must be bound and coincident with the datum plane. I tested using Curve.IsBound and that returned "True"....so how can the curve not be coincident if it was only offset in Z??

I also tried getting the start and end points of the reference curve, and creating new XYZ with the new Z value and using Line.CreateBound but that too gave me the same error.

So my question is - how do I use SetCurveInView when the reference curve is taken from a datum plane that is in a plan view at a different elevation than the plan view containing the datum plane I am trying to set.

Re: DatumPlane SetCurve problems

Aaron.Lu — Fri, 19 Feb 2016 07:49:49 GMT

Dear bosborne, is it possible to provide a rvt file with code example to help us to reproduce your problem? thanks

Re: DatumPlane SetCurve problems

simonjones-uk — Fri, 11 Mar 2022 15:55:15 GMT

Did you ever solve this? I'm experiencing the same problem attempting to resize the DatumPlane associated with Levels

Re: DatumPlane SetCurve problems

admaecc211151 — Tue, 16 Jul 2024 01:24:36 GMT

foreach (Curve cv in dp.GetCurvesInView(DatumExtentType.Model, doc.ActiveView)) { MessageBox.Show(cv.GetEndPoint(0).ToString() + " " + cv.GetEndPoint(1).ToString()); }

I use this parse to read the curves, and found that it's only works in view section, and the curve is bounded by both the Z-axis and the section plane.

So edit it in South Side and East Side View (or any sections horizontal to X and Y axis) would be better.

Level level; View southViewSection, eastViewSection; //get these and check the view is with correct direction. //edit the datum for X-axis Curve datumToCurveX = level.GetCurvesInView(DatumExtentType.Model, southViewSection).First(); datumToCurveX = Line.CreateBound( new XYZ(newX0, datumToCurveX.GetEndPoint(0).Y, datumToCurveX.GetEndPoint(0).Z), new XYZ(newX1, datumToCurveX.GetEndPoint(1).Y, datumToCurveX.GetEndPoint(1).Z) ); level.SetCurveInView(DatumExtentType.Model, southViewSection, datumToCurveX); //do Same for Y-axis