1 files changed, 115 insertions, 0 deletions
diff --git a/com/ProjDef.cpp b/com/ProjDef.cpp
new file mode 100755
index 00000000..c64a6e19
--- /dev/null
+++ b/com/ProjDef.cpp
@@ -0,0 +1,115 @@
+// ProjDef.cpp : Implementation of CProjDef
+#include "stdafx.h"
+#include "COMTest1.h"
+#include "ProjDef.h"
+#include "proj_api.h"
+
+/////////////////////////////////////////////////////////////////////////////
+// CProjDef
+
+
+STDMETHODIMP CProjDef::Initialize(BSTR proj_string, int *success)
+{
+	USES_CONVERSION;
+	psProj = pj_init_plus( W2A(proj_string) );
+
+	if( psProj != NULL )
+		*success = 1;
+	else
+	{
+		SetProjError( "pj_init_plus failed." );
+		//SetError( (const char *) W2A(proj_string) );
+		*success = 0;
+	}
+
+	return S_OK;
+}
+
+STDMETHODIMP CProjDef::TransformPoint3D(IUnknown *srcProj, double *x, double *y, double *z, int *success)
+{
+	void *psProjOther;
+	IProjDef *srcProjReal;
+
+	srcProj->QueryInterface( IID_IProjDef, (void **) &srcProjReal );
+	srcProjReal->GetHandle( (long *) &psProjOther );
+
+	if( psProjOther == NULL || psProj == NULL )
+	{
+		SetError( "One of projections not set." );
+		*success = 0;
+		return E_FAIL;
+	}
+	
+	if( pj_is_latlong( psProjOther ) )
+	{
+		*x *= DEG_TO_RAD;
+		*y *= DEG_TO_RAD;
+	}
+
+	*success = pj_transform( psProjOther, psProj, 1, 0, x, y, z ) == 0;
+	if( ! *success )
+		SetProjError( "pj_transform failed." );
+
+	else if( pj_is_latlong( psProj ) )
+	{
+		*x *= RAD_TO_DEG;
+		*y *= RAD_TO_DEG;
+	}
+
+	return S_OK;
+}
+
+STDMETHODIMP CProjDef::GetHandle(long *pHandle)
+{
+	*pHandle = (long) psProj;
+
+	return S_OK;
+}
+
+STDMETHODIMP CProjDef::IsLatLong(int *result)
+{
+	if( psProj != NULL )
+	{
+		*result = pj_is_latlong( (projPJ) psProj );
+		return S_OK;
+	}
+	else
+	{
+		SetError( "Projection is null" );
+		return E_FAIL;
+	}
+}
+
+STDMETHODIMP CProjDef::GetLastError( BSTR *error )
+{
+	*error = SysAllocString( sLastError );
+
+	return S_OK;
+}
+
+void  CProjDef::SetError( const char *pszMessage )
+
+{
+	USES_CONVERSION;
+
+	if( sLastError != NULL )
+	{
+		SysFreeString( sLastError );
+		sLastError = NULL;
+	}
+
+	sLastError = SysAllocString( A2BSTR( pszMessage ) );		
+}
+
+void  CProjDef::SetProjError( const char *pszMessage )
+
+{
+	int *pj_errno = pj_get_errno_ref();
+
+	if( *pj_errno > 0 )
+		SetError( strerror( *pj_errno ) );
+	else if( *pj_errno < 0 )
+		SetError( pj_strerrno( *pj_errno ) );
+	else
+		SetError( pszMessage );
+}