topic Re: (API) Finite element results for CQC combinations in Robot Structural Analysis Forum

(API) Finite element results for CQC combinations

alexanderziotopoulos5224 — Thu, 01 Dec 2016 13:25:53 GMT

Hi,

in the forum there is an example where you can get finite element results via API using an excell file and VBA.

Using this file when exporting results from a model containing earthquake analysis results it seems that only the results from mode 1 are exported for the excitation directions (X Y Z) and not from the CQC combination of the modes.

Is there a possibility to specify that the CQC combination of the modes is to be exported when having earthquake analysis results.

Thanks

Re: (API) Finite element results for CQC combinations

Rafal.Gaweda — Thu, 01 Dec 2016 13:25:20 GMT

Sure it can be done

Take a look at attached macro

Re: (API) Finite element results for CQC combinations

alexanderziotopoulos5224 — Mon, 05 Dec 2016 14:59:49 GMT

Thanks Rafal.

Re: (API) Finite element results for CQC combinations

alexander.silvaGA9XG — Fri, 20 Jun 2025 07:05:44 GMT

Hi mr. Rafal,
Can you tell me if it possible to get the complex result (top and bottom reinforcement) at the FE nodes and/or from a section cut?
Thanks.

Re: (API) Finite element results for CQC combinations

Stephane.kapetanovic — Mon, 03 Nov 2025 07:30:09 GMT

hi @alexander.silvaGA9XG

You can add a polyline on your panel before meshing and extract the results at the corresponding nodes.

Best Regards

Re: (API) Finite element results for CQC combinations

miguel_paulinoY2Y8C — Tue, 15 Jul 2025 13:41:18 GMT

"I'm struggling to get there on my own. Would you happen to have an example, maybe in Python or a similar language, that you could share?"

Re: (API) Finite element results for CQC combinations

Stephane.kapetanovic — Tue, 15 Jul 2025 16:40:01 GMT

hi @miguel_paulinoY2Y8C

Have you tried using an AI tool or a code conversion website, such as ChatGPT, deepseek, GitHub Copilot, or code converters like Telerik Code Converter or CodeTranslator.com?

Why not use @Rafal.Gaweda's Excel app if you're not familiar with coding?

Best Regards

Re: (API) Finite element results for CQC combinations

Stephane.kapetanovic — Thu, 17 Jul 2025 08:05:43 GMT

Just translating code into another language without adding anything new isn’t very helpful for the forum. Do you have any extra features or improvements in mind?

Re: (API) Finite element results for CQC combinations

miguel_paulinoY2Y8C — Thu, 17 Jul 2025 08:42:44 GMT

Dear Stephane,

Our goal is to analyze the redistribution of complex forces in reinforcement elements perpendicular to a defined section ("cut").

If there is a way to extract both bottom and top reinforcement values and their positions in a format that would allow for graphical plotting, that would be greatly appreciated.

Thank you in advance for your support.

Re: (API) Finite element results for CQC combinations

Stephane.kapetanovic — Fri, 18 Jul 2025 04:05:47 GMT

reinforcement => not implemented (API) Geting Required Reinforcement on panels

For tabulated cutting results, refer to the values at the nearest nodes.

Re: (API) Finite element results for CQC combinations

alexander.silvaGA9XG — Thu, 17 Jul 2025 12:24:16 GMT

Mr. Stephane,

What about the complex forces, is implemented by API?

Re: (API) Finite element results for CQC combinations

Stephane.kapetanovic — Sun, 28 Sep 2025 15:30:09 GMT

as explained first follow the code provided by @Rafal.Gaweda, here is my test ↓

static string GetFormatedValues(RobotFeResultReinforcement r) => string.Concat(new[] { r.AX_BOTTOM, r.AX_TOP, r.AY_BOTTOM, r.AY_TOP }.Select(v => $"{v * 10000,10:F2}")); static void PrintPanelReinforcements(string panels) { RobotApplication RobApp = new(); int wl = RobApp.Preferences.GetLanguage(I_L_WORK); RobotStructure structure = RobApp.Project.Structure; var pSel = structure.Selections.Create(I_OT_PANEL); pSel.FromText(panels); foreach (int p in pSel.AsArray(wl)) foreach (int n in ((RobotObjObject)structure.Objects.Get(p)).Nodes.AsArray(wl)) WriteLine($"{$"{p} / {n}",-10}{GetFormatedValues(structure.Results.FiniteElems.Reinforcement(p, n))}"); }

Re: (API) Finite element results for CQC combinations

Stephane.kapetanovic — Sun, 08 Mar 2026 21:15:02 GMT

hi @miguel_paulinoY2Y8C

For once, here’s a C# interpretation of the original VBA code.

Compared to Excel, displaying results in the console allows you to divide the execution time by 2.

You can save another 30-50% by using classes, and even more if you reduce the output to a simple data table for plotting.

public static void PrintCQCResultsForForum(string panels, string cases) { if (string.IsNullOrEmpty(panels) || string.IsNullOrEmpty(cases)) return; RobotApplication RobApp = new(); if (RobApp.Visible != -1 || RobApp.Project.IsActive != -1 || !new[] { I_PT_PLATE, I_PT_SHELL, I_PT_BUILDING }.Contains(RobApp.Project.Type) || RobApp.Project.Structure.Results.Available != -1) return; RobotStructure Structure = RobApp.Project.Structure; RobotSelectionFactory Selections = Structure.Selections; RobotSelection ps = Selections.Create(I_OT_PANEL); ps.FromText(panels); if (ps.Count == 0) return; RobotSelection cs = Selections.Create(I_OT_CASE); cs.FromText(cases); if (cs.Count == 0) return; int wl = RobApp.Preferences.GetLanguage(I_L_WORK); var symbols = new[] { "+", "-" }; var feStrings = ps.ToArray(wl).Select(p => ((RobotObjObject)Structure.Objects.Get(p)).FiniteElems); int[] FEsNumbers = string.Join(" ", feStrings).ToArray(wl), CaseNumbers = cs.ToArray(wl); RobotFeResultServer FeRS = Structure.Results.FiniteElems; RobotFeResultParams FePrms = new() { Layer = IRobotFeLayerType.I_FLT_MIDDLE }; FePrms.SetDirX(IRobotObjLocalXDirDefinitionType.I_OLXDDT_CARTESIAN, 1, 0, 0); static string GetFormatedValues(IRobotFeResultComplex c, IRobotFeResultDetailed d) => string.Concat(new[] { d.QXX, d.QYY, c.MXX_TOP, c.MXX_BOTTOM, c.MYY_TOP, c.MYY_BOTTOM }.Select(v => $"{v,15:F2}")); void Print(string name, RobotFeResultParams Params) => WriteLine($"{name,-15}{GetFormatedValues(FeRS.Complex(Params), FeRS.Detailed(Params))}"); string main = "FE / Case"; string[] headers = ["QXX", "QYY", "MXX_TOP", "MXX_BOTTOM", "MYY_TOP", "MYY_BOTTOM"]; WriteLine("Project: " + RobApp.Project.Name); WriteLine(main.PadRight(15) + string.Concat(headers.Select(h => h.PadLeft(15)))); foreach (int FeNo in FEsNumbers) { FePrms.Element = FeNo; foreach (int CasNo in CaseNumbers) { FePrms.Case = CasNo; IRobotCase cas = Structure.Cases.Get(CasNo); if (symbols.Any(cas.Name.Contains)) continue; switch (cas.Type) { case IRobotCaseType.I_CT_SIMPLE: case IRobotCaseType.I_CT_COMBINATION: if (cas.AnalizeType == IRobotCaseAnalizeType.I_CAT_DYNAMIC_SEISMIC) FePrms.ModeCmb = IRobotModeCombinationType.I_MCT_CQC; Print($"{FeNo} / {CasNo}", FePrms); break; case IRobotCaseType.I_CT_MOBILE: FePrms.Case = CasNo; IRobotMobileCaseComponentMngr Components = ((IRobotMobileCase)cas).Components; for (int k = 1; k <= Components.Count; k++) { FePrms.CaseCmpnt = Components.Get(k).Point; Print($"{FeNo} / {CasNo} / {FePrms.CaseCmpnt}", FePrms); } break; } } } }

Best Regards