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Fri, 24 Mar 2023 05:10:39 GMT

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Open STAAD C++ function GetNodeCoordinates

Ahmed Shakir Hassan — Fri, 24 Mar 2023 06:59:40 GMT

Node 2 is a real node in the STAAD.Pro model located at (1, 0, 0), and the GetNodeNumber method is correctly returning the node number that corresponds to the point coordinates (1,0,0). When I use GetNodeCoordinates(2, &x, &y, &z), I expect to get the same coordinates (1, 0, 0) but the method is returning (0, 0, 0) instead of (1, 0, 0). The code and output is as follows:

#include <iostream>
#import "C:\Program Files\Bentley\Engineering\STAAD.Pro CONNECT Edition\STAAD\StaadPro.dll" named_guids

using namespace OpenSTAADUI;
using namespace std;

namespace OSApp = OpenSTAADUI;

int main()
{
OSApp::IOpenSTAADUIPtr OSAppPtr;
OSApp::IOSGeometryUIPtr OSGeomPtr;

try
{
CoInitialize(NULL);
HRESULT hr = OSAppPtr.CreateInstance(__uuidof(OSApp::OpenSTAAD));

hr = OSAppPtr.GetActiveObject(__uuidof(OSApp::OpenSTAAD));

OSGeomPtr = OSAppPtr->GetGeometry();

int Node2 = OSGeomPtr->GetNodeNumber(1.0, 0.0, 0.0);
printf("Node number at (1,0,0) = %d\n", Node2);
VARIANT x, y, z;
VariantInit(&x);
VariantInit(&y);
VariantInit(&z);
OSGeomPtr->GetNodeCoordinates(2, &x, &y, &z);
printf("Node %d coordinates: (%f, %f, %f)\n", 2, V_R8(&x), V_R8(&y), V_R8(&z));
VariantClear(&x);
VariantClear(&y);
VariantClear(&z);
}
catch (_com_error& e)
{
_bstr_t bstrDescription = e.Description();
printf("COM Error! %s\n", bstrDescription);
}

return 0;
}

OUTPUT:

Node number at (1,0,0) = 2
Node 2 coordinates: (0.000000, 0.000000, 0.000000)

Write an OpenSTAAD Program in VS C++

Ahmed Shakir Hassan — Tue, 21 Mar 2023 16:26:19 GMT

I want to learn to write an OpenSTAAD code in Visual Studio 2023 C++. I followed the steps as listed in STAAD.Pro Help OpenSTAAD. The code given by Bentely is look like:

#import "C:\Program Files\Bentley\Engineering\STAAD.Pro CONNECT Edition\STAAD\StaadPro.dll" named_guids
using namespace OpenSTAADUI;
using namespace std;
namespace OSApp = OpenSTAADUI;

int main()
{
OSApp::IOpenSTAADUIPtr OSAppPtr;
try
{
CoInitialize(NULL);
HRESULT hr = OSAppPtr.CreateInstance(__uuidof(OSApp::OpenSTAAD));

if (hr != S_OK)
{
printf("Unable to connect to STAAD.Pro application!\n");
return 1;
}

hr = OSAppPtr.GetActiveObject(__uuidof(OSApp::OpenSTAAD));
if (hr != S_OK)
{
printf("Unable to connect to an active instance of STAAD.Pro application!\n");
return 1;
}
}
catch (_com_error& e)
{
_bstr_t bstrDescription = e.Description();
printf("COM Error! %s\n", bstrDescription);
}
}

The problem is when reaching the Linking stage, an error occur about 'StaadPro.dll' saying that: "Error LNK1302 only support linking safe .netmodules; unable to link ijw/native .netmodule". I am grateful for any help I receive.

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