char *OGR_G_ExportToKML( OGRGeometryH hGeometry, const char *pszAltitudeMode )
{
char szAltitudeMode[128];
// TODO - mloskot: Should we use VALIDATE_POINTER1 here?
if( hGeometry == NULL )
return CPLStrdup( "" );
size_t nMaxLength = 1;
char* pszText = static_cast<char *>(CPLMalloc(nMaxLength));
pszText[0] = '\0';
if (NULL != pszAltitudeMode && strlen(pszAltitudeMode) < 128 - (29 + 1))
{
snprintf( szAltitudeMode, sizeof(szAltitudeMode),
"<altitudeMode>%s</altitudeMode>", pszAltitudeMode);
}
else
{
szAltitudeMode[0] = 0;
}
size_t nLength = 0;
if( !OGR2KMLGeometryAppend(
reinterpret_cast<OGRGeometry *>(hGeometry), &pszText,
&nLength, &nMaxLength, szAltitudeMode ) )
{
CPLFree( pszText );
return NULL;
}
return pszText;
}
char *OGR_G_ExportToKML( OGRGeometryH hGeometry, const char *pszAltitudeMode )
{
char* pszText = NULL;
int nLength = 0;
int nMaxLength = 1;
char szAltitudeMode[128];
// TODO - mloskot: Shouldn't we use VALIDATE_POINTER1 here?
if( hGeometry == NULL )
return CPLStrdup( "" );
pszText = (char *) CPLMalloc(nMaxLength);
pszText[0] = '\0';
if (NULL != pszAltitudeMode && strlen(pszAltitudeMode) < 128 - (29 + 1))
{
sprintf(szAltitudeMode, "<altitudeMode>%s</altitudeMode>", pszAltitudeMode);
}
else
{
szAltitudeMode[0] = 0;
}
if( !OGR2KMLGeometryAppend( (OGRGeometry *) hGeometry, &pszText,
&nLength, &nMaxLength, szAltitudeMode ))
{
CPLFree( pszText );
return NULL;
}
return pszText;
}
static bool OGR2KMLGeometryAppend( OGRGeometry *poGeometry,
char **ppszText, size_t *pnLength,
size_t *pnMaxLength, char *szAltitudeMode )
{
/* -------------------------------------------------------------------- */
/* 2D Point */
/* -------------------------------------------------------------------- */
if( poGeometry->getGeometryType() == wkbPoint )
{
OGRPoint* poPoint = static_cast<OGRPoint*>(poGeometry);
if (poPoint->getCoordinateDimension() == 0)
{
_GrowBuffer( *pnLength + 10,
ppszText, pnMaxLength );
strcat( *ppszText + *pnLength, "<Point/>");
*pnLength += strlen( *ppszText + *pnLength );
}
else
{
char szCoordinate[256] = { 0 };
MakeKMLCoordinate( szCoordinate, sizeof(szCoordinate),
poPoint->getX(), poPoint->getY(), 0.0, FALSE );
_GrowBuffer( *pnLength + strlen(szCoordinate) + 60,
ppszText, pnMaxLength );
snprintf( *ppszText + *pnLength, *pnMaxLength - *pnLength,
"<Point><coordinates>%s</coordinates></Point>",
szCoordinate );
*pnLength += strlen( *ppszText + *pnLength );
}
}
/* -------------------------------------------------------------------- */
/* 3D Point */
/* -------------------------------------------------------------------- */
else if( poGeometry->getGeometryType() == wkbPoint25D )
{
char szCoordinate[256] = { 0 };
OGRPoint *poPoint = static_cast<OGRPoint*>(poGeometry);
MakeKMLCoordinate( szCoordinate, sizeof(szCoordinate),
poPoint->getX(), poPoint->getY(), poPoint->getZ(),
true );
if (NULL == szAltitudeMode)
{
_GrowBuffer( *pnLength + strlen(szCoordinate) + 70,
ppszText, pnMaxLength );
snprintf( *ppszText + *pnLength, *pnMaxLength - *pnLength,
"<Point><coordinates>%s</coordinates></Point>",
szCoordinate );
}
else
{
_GrowBuffer( *pnLength + strlen(szCoordinate)
+ strlen(szAltitudeMode) + 70,
ppszText, pnMaxLength );
snprintf( *ppszText + *pnLength, *pnMaxLength - *pnLength,
"<Point>%s<coordinates>%s</coordinates></Point>",
szAltitudeMode, szCoordinate );
}
*pnLength += strlen( *ppszText + *pnLength );
}
/* -------------------------------------------------------------------- */
/* LineString and LinearRing */
/* -------------------------------------------------------------------- */
else if( poGeometry->getGeometryType() == wkbLineString
|| poGeometry->getGeometryType() == wkbLineString25D )
{
const bool bRing = EQUAL(poGeometry->getGeometryName(),"LINEARRING");
if( bRing )
AppendString( ppszText, pnLength, pnMaxLength,
"<LinearRing>" );
else
AppendString( ppszText, pnLength, pnMaxLength,
"<LineString>" );
if (NULL != szAltitudeMode)
{
AppendString( ppszText, pnLength, pnMaxLength, szAltitudeMode);
}
AppendCoordinateList( reinterpret_cast<OGRLineString *>(poGeometry),
ppszText, pnLength, pnMaxLength );
if( bRing )
AppendString( ppszText, pnLength, pnMaxLength,
"</LinearRing>" );
else
AppendString( ppszText, pnLength, pnMaxLength,
"</LineString>" );
}
/* -------------------------------------------------------------------- */
/* Polygon */
/* -------------------------------------------------------------------- */
else if( poGeometry->getGeometryType() == wkbPolygon
|| poGeometry->getGeometryType() == wkbPolygon25D )
{
OGRPolygon* poPolygon = static_cast<OGRPolygon*>(poGeometry);
AppendString( ppszText, pnLength, pnMaxLength, "<Polygon>" );
if (NULL != szAltitudeMode)
{
AppendString( ppszText, pnLength, pnMaxLength, szAltitudeMode);
}
if( poPolygon->getExteriorRing() != NULL )
{
AppendString( ppszText, pnLength, pnMaxLength,
"<outerBoundaryIs>" );
if( !OGR2KMLGeometryAppend( poPolygon->getExteriorRing(),
ppszText, pnLength, pnMaxLength,
szAltitudeMode ) )
{
return false;
}
AppendString( ppszText, pnLength, pnMaxLength,
"</outerBoundaryIs>" );
}
for( int iRing = 0; iRing < poPolygon->getNumInteriorRings(); iRing++ )
{
OGRLinearRing *poRing = poPolygon->getInteriorRing(iRing);
AppendString( ppszText, pnLength, pnMaxLength,
"<innerBoundaryIs>" );
if( !OGR2KMLGeometryAppend( poRing, ppszText, pnLength,
pnMaxLength, szAltitudeMode ) )
{
return false;
}
AppendString( ppszText, pnLength, pnMaxLength,
"</innerBoundaryIs>" );
}
AppendString( ppszText, pnLength, pnMaxLength,
"</Polygon>" );
}
/* -------------------------------------------------------------------- */
/* MultiPolygon */
/* -------------------------------------------------------------------- */
else if( wkbFlatten(poGeometry->getGeometryType()) == wkbMultiPolygon
|| wkbFlatten(poGeometry->getGeometryType()) == wkbMultiLineString
|| wkbFlatten(poGeometry->getGeometryType()) == wkbMultiPoint
|| wkbFlatten(poGeometry->getGeometryType()) ==
wkbGeometryCollection )
{
OGRGeometryCollection* poGC = NULL;
poGC = static_cast<OGRGeometryCollection*>(poGeometry);
AppendString( ppszText, pnLength, pnMaxLength, "<MultiGeometry>" );
// XXX - mloskot
//if (NULL != szAltitudeMode)
//{
// AppendString( ppszText, pnLength, pnMaxLength, szAltitudeMode);
//}
for( int iMember = 0; iMember < poGC->getNumGeometries(); iMember++)
{
OGRGeometry *poMember = poGC->getGeometryRef( iMember );
if( !OGR2KMLGeometryAppend( poMember, ppszText, pnLength,
pnMaxLength, szAltitudeMode ) )
{
return false;
}
}
AppendString( ppszText, pnLength, pnMaxLength, "</MultiGeometry>" );
}
else
{
return false;
}
return true;
}