# Geometry **URL:** https://forum.gidsimulation.com/c/gid/geometry/10.md [Latest](https://forum.gidsimulation.com/latest.md) · [Categories](https://forum.gidsimulation.com/categories.md) · [Tags](https://forum.gidsimulation.com/tags.md) --- ## [About the Geometry category](https://forum.gidsimulation.com/t/about-the-geometry-category/13)
**Author:** [@system](https://forum.gidsimulation.com/u/system)\ **Replies:** 0
(Replace this first paragraph with a brief description of your new category. This guidance will appear in the category selection area, so try to keep it below 200 characters.) Use the following paragraphs for a longer d… --- ## [Large UTM coordinates snap, workaround and possible solution](https://forum.gidsimulation.com/t/large-utm-coordinates-snap-workaround-and-possible-solution/7211)
**Author:** [@OscarCainelli](https://forum.gidsimulation.com/u/OscarCainelli)\ **Replies:** 1\ **Last updated:** [October 27, 2026, 11:41am UTC](https://forum.gidsimulation.com/t/large-utm-coordinates-snap-workaround-and-possible-solution/7211 "2026-10-27T11:41:54Z")
Hi everyone, I wanted to share a quick note about the classic “snap” issue when working with real UTM coordinates (X/Y in the millions) in GiD/Iber. As you probably know, the cursor jumps in 1m or 10m steps, making prec… --- ## [Automate volume closing for arteria STL in Tcl scripting](https://forum.gidsimulation.com/t/automate-volume-closing-for-arteria-stl-in-tcl-scripting/7038)
**Author:** [@fjgarate](https://forum.gidsimulation.com/u/fjgarate)\ **Replies:** 0\ **Last updated:** [August 29, 2025, 12:55pm UTC](https://forum.gidsimulation.com/t/automate-volume-closing-for-arteria-stl-in-tcl-scripting/7038 "2025-08-29T12:55:07Z")
This week, we received a question from our CIMNE BioMedical division (https://www.cimne.com/space/3240) They import into GiD some STL files that define the surface of arterias, with holes for the inlet and outlets. For … --- ## [Element 1808's volume \<=0](https://forum.gidsimulation.com/t/element-1808s-volume-0/2788)
**Author:** [@RuthLevine](https://forum.gidsimulation.com/u/RuthLevine)\ **Replies:** 1\ **Last updated:** [January 22, 2025, 6:41pm UTC](https://forum.gidsimulation.com/t/element-1808s-volume-0/2788 "2025-01-22T18:41:48Z")
Before any calculations are performed, I get the following error after pressing the calculate button: Element 1808’s volume \<=0; stop However, if I examine the model, I see that element 1808 seems to have a surface. Sin… --- ## [rotation in y-z plane](https://forum.gidsimulation.com/t/rotation-in-y-z-plane/2784)
**Author:** [@idsno](https://forum.gidsimulation.com/u/idsno)\ **Replies:** 1\ **Last updated:** [December 18, 2024, 5:40pm UTC](https://forum.gidsimulation.com/t/rotation-in-y-z-plane/2784 "2024-12-18T17:40:44Z")
hi, i was wondering if i can rotate in the y-z plane? the utilities \> move \> rotation allows me to rotate in the x-y, but i see no option to change to another plane. kind regards. --- ## [How to create segments on an irregular geometry](https://forum.gidsimulation.com/t/how-to-create-segments-on-an-irregular-geometry/2762)
**Author:** [@jmbtin001](https://forum.gidsimulation.com/u/jmbtin001)\ **Replies:** 1\ **Last updated:** [March 25, 2024, 4:30pm UTC](https://forum.gidsimulation.com/t/how-to-create-segments-on-an-irregular-geometry/2762 "2024-03-25T16:30:00Z")
I have an irregular geometry that can be approximated as an ellipse with shown in this link : https://www.researchgate.net/figure/a-The-left-ventricle-is-represented-by-a-truncated-ellipsoid-Myofiber-orientation-is\_fig1\_… --- ## [How to divide a volume](https://forum.gidsimulation.com/t/how-to-divide-a-volume/2727)
**Author:** [@user9](https://forum.gidsimulation.com/u/user9)\ **Replies:** 3\ **Last updated:** [September 22, 2023, 5:10pm UTC](https://forum.gidsimulation.com/t/how-to-divide-a-volume/2727 "2023-09-22T17:10:59Z")
Dear sir, I want to divide a 3d cube by a 2d surface. The cube is 10mx10mx10m. The diving plane is 5 m above Z=0. I divided the volume via geometry\>edit\>divide\>volume\>split But GiD said “Could not subdivide volume, ch… --- ## [How to create 3d geometry for penetration problem ?](https://forum.gidsimulation.com/t/how-to-create-3d-geometry-for-penetration-problem/2728)
**Author:** [@user9](https://forum.gidsimulation.com/u/user9)\ **Replies:** 6\ **Last updated:** [September 22, 2023, 11:18am UTC](https://forum.gidsimulation.com/t/how-to-create-3d-geometry-for-penetration-problem/2728 "2023-09-22T11:18:59Z")
Dear sir, I wish to model penetration of 2 inclusions in soil. The sub soil is divided into 2 layers (18m and 3m). Above the ground surface are 2 inclusions. The diameter of inclusion is 0.4 m, length is 18m, tip is 60 … --- ## [How to apply pretension on bolt and how to represent gap interface?](https://forum.gidsimulation.com/t/how-to-apply-pretension-on-bolt-and-how-to-represent-gap-interface/2711)
**Author:** [@wael.alawsey](https://forum.gidsimulation.com/u/wael.alawsey)\ **Replies:** 1\ **Last updated:** [July 5, 2023, 6:00pm UTC](https://forum.gidsimulation.com/t/how-to-apply-pretension-on-bolt-and-how-to-represent-gap-interface/2711 "2023-07-05T18:00:45Z")
Hello there, As you see ,in the attached pictures, a part of my model, i am trying to model a connection which holds two concrete beams together, maybe i should not post this here because i am dealing with atena static … --- ## [Contact volume](https://forum.gidsimulation.com/t/contact-volume/2710)
**Author:** [@aromic](https://forum.gidsimulation.com/u/aromic)\ **Replies:** 3\ **Last updated:** [July 3, 2023, 10:46am UTC](https://forum.gidsimulation.com/t/contact-volume/2710 "2023-07-03T10:46:38Z")
Dear all, I have problem defining the contact volume between two “layers” of volumes with different dimensions. The contact between two lateral volumes was successfully made, however, when the two volumes are above each… --- ## [Rigid Element (Link)](https://forum.gidsimulation.com/t/rigid-element-link/2703)
**Author:** [@ing.denni](https://forum.gidsimulation.com/u/ing.denni)\ **Replies:** 1\ **Last updated:** [March 28, 2023, 1:10pm UTC](https://forum.gidsimulation.com/t/rigid-element-link/2703 "2023-03-28T13:10:20Z")
Hi all, I’m having some problems creating rigid sections (links) as sap2000 (see image). What I want to do is to recreate the node conditions between beam and abutment of length equal to the interpenetration length of … --- ## [Contact volume](https://forum.gidsimulation.com/t/contact-volume/2701)
**Author:** [@zaherkurdi](https://forum.gidsimulation.com/u/zaherkurdi)\ **Replies:** 1\ **Last updated:** [March 27, 2023, 7:23pm UTC](https://forum.gidsimulation.com/t/contact-volume/2701 "2023-03-27T19:23:05Z")
Dear, I am writing to seek your assistance regarding an issue I am experiencing while using the GID software V16.1.3d. Specifically, I am having trouble creating contact volumes between the surfaces of different volumes… --- ## [Nodal coordinates are not precise](https://forum.gidsimulation.com/t/nodal-coordinates-are-not-precise/2698)
**Author:** [@Daniel](https://forum.gidsimulation.com/u/Daniel)\ **Replies:** 2\ **Last updated:** [March 9, 2023, 12:36pm UTC](https://forum.gidsimulation.com/t/nodal-coordinates-are-not-precise/2698 "2023-03-09T12:36:05Z")
Hi everyone, good morning. I am having a issue with nodal coodinates precisio. After inserting them with Utilities → Tools → Coordinates window (and then geometry → create → point) the coordinates in the .dat file ar… --- ## [Help please](https://forum.gidsimulation.com/t/help-please/2697)
**Author:** [@dany2323](https://forum.gidsimulation.com/u/dany2323)\ **Replies:** 1\ **Last updated:** [February 20, 2023, 11:17am UTC](https://forum.gidsimulation.com/t/help-please/2697 "2023-02-20T11:17:54Z")
Hello there, I have a question about how to represent the contact between a concrete beam and a 3d steel bar that is embedded in it !! Thank you in advance. --- ## [Structured mesh is not working](https://forum.gidsimulation.com/t/structured-mesh-is-not-working/2691)
**Author:** [@Daniel](https://forum.gidsimulation.com/u/Daniel)\ **Replies:** 4\ **Last updated:** [February 8, 2023, 8:36pm UTC](https://forum.gidsimulation.com/t/structured-mesh-is-not-working/2691 "2023-02-08T20:36:11Z")
Hi, I’ve got the academic license 16.1.2d and with simple square example from user manual the option Mesh-\>Structured-\>Surfaces-\>Assign number of division to surface lines is not working. After the selection, the line… --- ## [moment of inertia](https://forum.gidsimulation.com/t/moment-of-inertia/2672)
**Author:** [@Sadegh](https://forum.gidsimulation.com/u/Sadegh)\ **Replies:** 1\ **Last updated:** [June 30, 2022, 1:33pm UTC](https://forum.gidsimulation.com/t/moment-of-inertia/2672 "2022-06-30T13:33:30Z")
Is it possible to see the moment of inertia of a surface in Tdyn? If yes, how? --- ## [Drawing vertical line between points with same xy in different z](https://forum.gidsimulation.com/t/drawing-vertical-line-between-points-with-same-xy-in-different-z/2667)
**Author:** [@najafi](https://forum.gidsimulation.com/u/najafi)\ **Replies:** 3\ **Last updated:** [June 5, 2022, 10:26am UTC](https://forum.gidsimulation.com/t/drawing-vertical-line-between-points-with-same-xy-in-different-z/2667 "2022-06-05T10:26:55Z")
Hi I’m new in GiD modelling :slight\_smile: . Is there any script or macro that I being able to automatically draw vertical line (i.e. in z direction) between points with same x,y in different z? All points in differen… --- ## [Problem with intersection](https://forum.gidsimulation.com/t/problem-with-intersection/2556)
**Author:** [@AlejandroMaximus](https://forum.gidsimulation.com/u/AlejandroMaximus)\ **Replies:** 3\ **Last updated:** [May 23, 2022, 9:10am UTC](https://forum.gidsimulation.com/t/problem-with-intersection/2556 "2022-05-23T09:10:28Z")
I am having some problems with the intersection function. I am programming a TCl script that uses the intersect function. Unfortunately the intersect function is not very reliable. Sometimes after intersecting the two vo… --- ## [Braided mesh model development](https://forum.gidsimulation.com/t/braided-mesh-model-development/2566)
**Author:** [@harishpec94](https://forum.gidsimulation.com/u/harishpec94)\ **Replies:** 5\ **Last updated:** [February 7, 2022, 8:17am UTC](https://forum.gidsimulation.com/t/braided-mesh-model-development/2566 "2022-02-07T08:17:10Z")
Dear Sir, I am new to GiD software. I want to create a 3D geometry of braided sleeve. I read your article on “A CAD tool for the electromagnetic modeling of braided wire shields”. But I am facing difficulty in creatin… --- ## [.bch file Creating point error (unknown command)](https://forum.gidsimulation.com/t/bch-file-creating-point-error-unknown-command/2648)
**Author:** [@nenekkenen](https://forum.gidsimulation.com/u/nenekkenen)\ **Replies:** 1\ **Last updated:** [February 1, 2022, 4:48pm UTC](https://forum.gidsimulation.com/t/bch-file-creating-point-error-unknown-command/2648 "2022-02-01T16:48:51Z")
I am trying to make an automatized study, for this I need to create points aswell, I use a .bch file to create my models in GiD. But now when I added points to the creation GiD always says unknown command: 0.0,0.3,0.1. A… --- ## [Help Required](https://forum.gidsimulation.com/t/help-required/2634)
**Author:** [@mikegold](https://forum.gidsimulation.com/u/mikegold)\ **Replies:** 1\ **Last updated:** [November 2, 2021, 9:55am UTC](https://forum.gidsimulation.com/t/help-required/2634 "2021-11-02T09:55:33Z")
Dear GiD-team, I want to hollow out the T-shaped bar shape from the block by using GiD. Then, I tried to hollow out by using \[Geometry\]-\[Edit\]-\[Volume Boolean op.\]-\[Substraction\]. However, I can not hollow out it. If… --- ## [NURBS surface doesn't work](https://forum.gidsimulation.com/t/nurbs-surface-doesnt-work/2627)
**Author:** [@Bil](https://forum.gidsimulation.com/u/Bil)\ **Replies:** 5\ **Last updated:** [October 23, 2021, 12:25pm UTC](https://forum.gidsimulation.com/t/nurbs-surface-doesnt-work/2627 "2021-10-23T12:25:49Z")
Hi, I tried to create NURBS surface with 4 shape (2 big rectangular and 2 small trapezoidal shape). when i create automatic NURBS surface, only 2 surfaces are created. When i try to create surfaces by contour it’s ok an… --- ## [Help for creating a prism](https://forum.gidsimulation.com/t/help-for-creating-a-prism/2591)
**Author:** [@DevonBirch](https://forum.gidsimulation.com/u/DevonBirch)\ **Replies:** 1\ **Last updated:** [March 29, 2021, 11:42am UTC](https://forum.gidsimulation.com/t/help-for-creating-a-prism/2591 "2021-03-29T11:42:00Z")
Hi guys! I need help to create a four-sided-prism, with measures: 10 - height, 1 - length and 1 - width. And then i would like to create a mesh with ten elements (ten cubes measuring 1x1x1). Could anyone help me? I than… --- ## [FEA with GID + Matfem 3D?](https://forum.gidsimulation.com/t/fea-with-gid-matfem-3d/2580)
**Author:** [@scotnewon96](https://forum.gidsimulation.com/u/scotnewon96)\ **Replies:** 1\ **Last updated:** [March 4, 2021, 7:50pm UTC](https://forum.gidsimulation.com/t/fea-with-gid-matfem-3d/2580 "2021-03-04T19:50:21Z")
What is your opinion about program Gid for FEA using Matfem 3D code for calculating? I am in pregrade and i only used Gid and SAP2000, and i would like to know differences with another FEA software like Abaqus, etc. --- ## [Screw Geometry](https://forum.gidsimulation.com/t/screw-geometry/2560)
**Author:** [@escolano](https://forum.gidsimulation.com/u/escolano)\ **Replies:** 0\ **Last updated:** [October 5, 2020, 6:02pm UTC](https://forum.gidsimulation.com/t/screw-geometry/2560 "2020-10-05T18:02:36Z")
Create a detailed screw seems difficult. Probably the best option is to create it in an external CAD and import it in GiD using some exchange format (IGES, STEP, …) --- ## [Spring for line](https://forum.gidsimulation.com/t/spring-for-line/2555)
**Author:** [@marcosasilva](https://forum.gidsimulation.com/u/marcosasilva)\ **Replies:** 1\ **Last updated:** [September 1, 2020, 7:30pm UTC](https://forum.gidsimulation.com/t/spring-for-line/2555 "2020-09-01T19:30:55Z")
Hi, I’m using GiD 10.0.9 Is there a way to apply spring for line into a 3D model? Otherwise, I need to enter mesh visualization and go node per node applying a spring for node --- ## [Get point id from coordinates](https://forum.gidsimulation.com/t/get-point-id-from-coordinates/2543)
**Author:** [@JFlock\_BE](https://forum.gidsimulation.com/u/JFlock_BE)\ **Replies:** 6\ **Last updated:** [April 27, 2020, 6:11am UTC](https://forum.gidsimulation.com/t/get-point-id-from-coordinates/2543 "2020-04-27T06:11:52Z")
Hello, Is it possible to know if there is a point at a given coordinates x,y,z (taken into account a given tolerance) in tcl ? If yes, is it possible to get its id ? Thanks for your help ! --- ## [Flatten NURBS curve](https://forum.gidsimulation.com/t/flatten-nurbs-curve/2539)
**Author:** [@vpapanik](https://forum.gidsimulation.com/u/vpapanik)\ **Replies:** 2\ **Last updated:** [April 10, 2020, 7:23am UTC](https://forum.gidsimulation.com/t/flatten-nurbs-curve/2539 "2020-04-10T07:23:19Z")
I have a NURBS line that lies on the XY plane and belongs to an edge of a surface. I want to elevate both ends of this line to a new Z elevation. However, the line become distorted. Is there any easy way to edit all the … --- ## [Some suggestions for improvements](https://forum.gidsimulation.com/t/some-suggestions-for-improvements/2537)
**Author:** [@vpapanik](https://forum.gidsimulation.com/u/vpapanik)\ **Replies:** 2\ **Last updated:** [April 10, 2020, 7:16am UTC](https://forum.gidsimulation.com/t/some-suggestions-for-improvements/2537 "2020-04-10T07:16:18Z")
Having worked on a large and demanding moment lately, I’d like to suggest some possible improvements for the upcoming versions. when you rename a material/element, it would be helpful to prompt the existing name in th… --- ## [Breaklines](https://forum.gidsimulation.com/t/breaklines/2524)
**Author:** [@Totof](https://forum.gidsimulation.com/u/Totof)\ **Replies:** 2\ **Last updated:** [December 20, 2019, 2:02pm UTC](https://forum.gidsimulation.com/t/breaklines/2524 "2019-12-20T14:02:00Z")
Hello, is it possible to define break lines to constrain the generation of the mesh ? the mesh triangles should not intersect this line. Thanks [Next page](https://forum.gidsimulation.com/c/gid/geometry/10.md?page=1)