topic (API) Get Nodes by Coordinates in Robot Structural Analysis Forum

(API) Get Nodes by Coordinates

a54249 — Thu, 23 Mar 2023 12:52:19 GMT

Hi,

Is it possible to directly select nodes with the geometry filters shown in the image attached via API? At the moment I'm selecting all the nodes and filtering them in the code but unfortunately when the model has too many nodes it becomes extremely slow.

Thanks

Re: (API) Get Nodes by Coordinates

Stephane.kapetanovic — Tue, 30 Sep 2025 10:30:42 GMT

hi @a54249

you can select from nodes of panels and filter by coordinates on this more restricted list.

After that, yes, it is possible to do it by API. Here is a commonly used generic method

Sub SelectNodesByCoordinatesRanges() Dim RobApp As RobotApplication: Set RobApp = New RobotApplication Dim NodCol As IRobotCollection, NodSel As RobotSelection With RobApp.Project.Structure Set NodCol = .Nodes.GetAll Set NodSel = .Selections.Get(I_OT_NODE) End With Dim bounds As Variant: bounds = [Limits].Value2 XMin = bounds(1, 1): Xmax = bounds(1, 2) YMin = bounds(2, 1): Ymax = bounds(2, 2) ZMin = bounds(3, 1): Zmax = bounds(3, 2) For i = 1 To NodCol.Count With NodCol.Get(i) If WithIn(.X, XMin, Xmax) And WithIn(.Y, YMin, Ymax) And WithIn(.Z, ZMin, Zmax) Then Txt = Txt & " " & .Number End With Next NodSel.FromText Txt Set RobApp = Nothing End Sub Function WithIn(V, VMin, VMax) As Boolean WithIn = V > VMin And V < VMax End Function

Best Regards

Re: (API) Get Nodes by Coordinates

Stephane.kapetanovic — Thu, 01 Jan 2026 07:29:45 GMT

Upgrade to improve speed and add selected object nodes only in the desired range

Updated on January 1, 2026