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MeshBuilder.dll not found
Posted: 19 Sep 2018, 14:19
by uligerhardt
Hello all!
I'm trying to show *.stp files which apparently needs MeshBuilder.dll. But I can't make that work. Even the CAD3D demo throws a TsgCommonBrepImageError exception 'MeshBuilder.dll Cannot be loaded!'.
How can I make that work?
Best regards
Uli
Re: MeshBuilder.dll not found
Posted: 19 Sep 2018, 18:50
by support
Hello Uli,
CAD VCL requires MeshBuilder.dll and
Open Cascade DLLs to load 3D file formats (STEP, IGES, etc.). These libraries come with CAD VCL and located in the following folders:
\Delphi\ExternalLib\OpenCascade\win32\vc9\bin\ - libraries for x32 platform,
\Delphi\ExternalLib\OpenCascade\win64\vc9\bin\ - libraries for x64 platform.
You may just copy the .dll files from one of these folders to the folder with the executable file (e.g. CAD3D.exe) or, if you want them to be located at some other path, call an
sgFunction.InitDefMeshBuilderDllPath() method to define the MeshBuilder.dll path on the application startup. In the CAD3D demo project this path is defined as follows:
Code: Select all
InitDefMeshBuilderDllPath(ExtractFilePath(Application.ExeName), 'Demos\3D\Bin\');
Mikhail
Re: MeshBuilder.dll not found
Posted: 20 Sep 2018, 11:07
by uligerhardt
Thanks Mikhail,
I got it to work using
Code: Select all
cnstMeshBuilderDllPath := TPath.Combine(ExtractFilePath(Application.ExeName), 'DLLS\');
instead of InitDefMeshBuilderDllPath. Am I missing something if I do this direct assignment?
Yesterday I only had copied MeshBuilder.dll instead of all the DLLs, so LoadLibrary failed despite MeshBuilder.dll was found.
Re: MeshBuilder.dll not found
Posted: 20 Sep 2018, 18:45
by support
Uli,
The InitDefMeshBuilderDllPath() method actually does the same, but also takes into account the conditional compilation symbol SG_CPUX64 which denotes the target platform (x64 or x32):
Code: Select all
{$IFDEF SG_CPUX64}
cnstMeshBuilderDllPath := vExePath + 'ExternalLib\OpenCascade\win64\vc9\bin\';
{$ELSE}
cnstMeshBuilderDllPath := vExePath + 'ExternalLib\OpenCascade\win32\vc9\bin\';
{$ENDIF}
If you compile an application for one target platform (e.g. x32), you may use the direct assignment from your post.
Mikhail