topic Re: stl export in ObjectARX Forum

stl export

Anonymous — Fri, 26 Aug 2011 03:55:50 GMT

Hi,

I am trying to export 3d object (Part) of autocad into STL by using COM API, but getting error message.

As per export functrionality (in AutoCAD), you can export BMP or STL in same manner. By code is working fine if i change the extentsion value for 2nd argument of IAcadDocument->Export() function, to BMP instead of STL.

Entire geometry is in +Ve XYZ octane and selection handle (3rd argument) is also having 1 object.

Waiting for response.

Thanks

Nikhil Gothankar

Re: stl export

Balaji_Ram — Fri, 26 Aug 2011 04:47:29 GMT

The Export COM API method doesn't work for STL. You may consider using "SendCommand" and use the "STLOUT" command.

Re: stl export

Anonymous — Fri, 26 Aug 2011 08:10:34 GMT

Hi, I don't know how to use send commad, esp. if there is a selection is also involved and how i will know whether the command executed successfully or not? Can some help me in this. Nikhil

Re: stl export

Balaji_Ram — Fri, 26 Aug 2011 10:13:09 GMT

Here is a sample code :

#include "acadi.h"

#pragma warning( disable : 4278 )
#import "acax18ENU.tlb" no_implementation raw_interfaces_only named_guids
#pragma warning( default : 4278 )

static void Test(void)
{
  CWinApp *pApp=acedGetAcadWinApp();
  if (!pApp)
   return;

HRESULT hRes;
LPDISPATCH pDisp=NULL;

  pDisp=pApp->GetIDispatch(TRUE);
  if (!pDisp)
   return;

  CComPtr<AutoCAD::IAcadApplication> pComApp;
  hRes=pDisp->QueryInterface(AutoCAD::IID_IAcadApplication, (void**)&pComApp);
  if (FAILED(hRes))
   return;

  CComPtr<AutoCAD::IAcadDocument> pComDoc;
  hRes=pComApp->get_ActiveDocument(&pComDoc);
  if (FAILED(hRes))
   return;

  hRes = pComDoc->SendCommand(_bstr_t("setvar FILEDIA 0 "));
  if (FAILED(hRes))
   return;

  hRes = pComDoc->SendCommand(_bstr_t("STLOUT ")); // Command
  if (FAILED(hRes))
   return;

  hRes = pComDoc->SendCommand(_bstr_t("All ")); // Select All
  if (FAILED(hRes))
   return;

  hRes = pComDoc->SendCommand(_bstr_t("No ")); // Is Binary : No
  if (FAILED(hRes))
   return;

  hRes = pComDoc->SendCommand(_bstr_t("c:\\Temp\\MyStl.stl\n")); // File name
  if (FAILED(hRes))
   return;
}