topic Re: Get position referenceplane in familyinstance in Revit API Forum

Get position referenceplane in familyinstance

sonicer — Mon, 03 Sep 2018 08:00:35 GMT

Is it possible get position of referenceplane in familyinstance that is not aligned with some mass/object.

Only alone stay reference in familyinstance.

My way:

The referenceintersector does't detect this reference.

need other way.

need direction and position of this referenceplane.

thx.

Re: Get position referenceplane in familyinstance

FAIR59 — Mon, 03 Sep 2018 10:43:57 GMT

this discussion might be helpfull.

https://forums.autodesk.com/t5/revit-api-forum/direction-of-reference-reference-plane-or-reference-line/m-p/7074163

Re: Get position referenceplane in familyinstance

sonicer — Mon, 03 Sep 2018 12:53:53 GMT

thanks...but I think it only show direction....

Re: Get position referenceplane in familyinstance

FAIR59 — Mon, 03 Sep 2018 18:41:17 GMT

From the dimension in the code, you could also find a point on the plane.

Howevere there is an alternative:

You can create a sketchplane using the reference, and find origin and normal from the plane of the sketchplane.

Reference r = inst.GetReferences(FamilyInstanceReferenceType.Left).FirstOrDefault();
if (r==null) return;
XYZ origin = XYZ.Zero;
XYZ normal = XYZ.Zero;
bool found=false;
using (Transaction t = new Transaction(doc,"create sketchplane"))
{
	t.Start();
	SketchPlane sk = SketchPlane.Create(doc,r);
	if (sk!=null)
	{
		Plane pl = sk.GetPlane();
		origin = pl.Origin;
		normal = pl.Normal;
                found = true;
	}
	t.RollBack();
}

Re: Get position referenceplane in familyinstance

aignatovich — Tue, 04 Sep 2018 11:12:02 GMT

Awesome!

I think we should call @jeremytammik to publish this solution in his TBC blog.

Re: Get position referenceplane in familyinstance

jeremytammik — Tue, 04 Sep 2018 11:22:10 GMT

Dear Alexander,

With great pleasure!

Thank you for the suggestion.

Cheers,

Jeremy

Re: Get position referenceplane in familyinstance

jeremytammik — Wed, 05 Sep 2018 13:07:18 GMT

Here you are:

http://thebuildingcoder.typepad.com/blog/2018/09/icon-access-and-reference-plane-in-family-instance.html#3

Also added to The Building Coder samples:

https://github.com/jeremytammik/the_building_coder_samples/blob/master/BuildingCoder/BuildingCoder/CmdDimensionInstanceOrigin.cs#L462-L501

Cheers

Jeremy