C++ (Cpp) SHPDestroyTreeNode示例

示例#1

文件： shptree.c 项目： AliceWang/census_utils

static int SHPTreeNodeTrim( SHPTreeNode * psTreeNode )

{
    int		i;

/* -------------------------------------------------------------------- */
/*      Trim subtrees, and free subnodes that come back empty.          */
/* -------------------------------------------------------------------- */
    for( i = 0; i < psTreeNode->nSubNodes; i++ )
    {
        if( SHPTreeNodeTrim( psTreeNode->apsSubNode[i] ) )
        {
            SHPDestroyTreeNode( psTreeNode->apsSubNode[i] );

            psTreeNode->apsSubNode[i] =
                psTreeNode->apsSubNode[psTreeNode->nSubNodes-1];

            psTreeNode->nSubNodes--;

            i--; /* process the new occupant of this subnode entry */
        }
    }

/* -------------------------------------------------------------------- */
/*      We should be trimmed if we have no subnodes, and no shapes.     */
/* -------------------------------------------------------------------- */
    return( psTreeNode->nSubNodes == 0 && psTreeNode->nShapeCount == 0 );
}

示例#2

文件： shptree.c 项目： AliceWang/census_utils

static void SHPDestroyTreeNode( SHPTreeNode * psTreeNode )

{
    int		i;
    
    for( i = 0; i < psTreeNode->nSubNodes; i++ )
    {
        if( psTreeNode->apsSubNode[i] != NULL )
            SHPDestroyTreeNode( psTreeNode->apsSubNode[i] );
    }
    
    if( psTreeNode->panShapeIds != NULL )
        free( psTreeNode->panShapeIds );

    if( psTreeNode->papsShapeObj != NULL )
    {
        for( i = 0; i < psTreeNode->nShapeCount; i++ )
        {
            if( psTreeNode->papsShapeObj[i] != NULL )
                SHPDestroyObject( psTreeNode->papsShapeObj[i] );
        }

        free( psTreeNode->papsShapeObj );
    }

    free( psTreeNode );
}

示例#3

文件： shptree.c 项目： AliceWang/census_utils

void SHPAPI_CALL
SHPDestroyTree( SHPTree * psTree )

{
    SHPDestroyTreeNode( psTree->psRoot );
    free( psTree );
}

示例#4

文件： shptree.c 项目： XiBeichuan/hydronumerics

static int SHPTreeNodeTrim( SHPTreeNode * psTreeNode )

{
    int		i;

/* -------------------------------------------------------------------- */
/*      Trim subtrees, and free subnodes that come back empty.          */
/* -------------------------------------------------------------------- */
    for( i = 0; i < psTreeNode->nSubNodes; i++ )
    {
        if( SHPTreeNodeTrim( psTreeNode->apsSubNode[i] ) )
        {
            SHPDestroyTreeNode( psTreeNode->apsSubNode[i] );

            psTreeNode->apsSubNode[i] =
                psTreeNode->apsSubNode[psTreeNode->nSubNodes-1];

            psTreeNode->nSubNodes--;

            i--; /* process the new occupant of this subnode entry */
        }
    }

/* -------------------------------------------------------------------- */
/*      If the current node has 1 subnode and no shapes, promote that   */
/*      subnode to the current node position.                           */
/* -------------------------------------------------------------------- */
    if( psTreeNode->nSubNodes == 1 && psTreeNode->nShapeCount == 0)
    {
        SHPTreeNode* psSubNode = psTreeNode->apsSubNode[0];

        memcpy(psTreeNode->adfBoundsMin, psSubNode->adfBoundsMin,
               sizeof(psSubNode->adfBoundsMin));
        memcpy(psTreeNode->adfBoundsMax, psSubNode->adfBoundsMax,
               sizeof(psSubNode->adfBoundsMax));
        psTreeNode->nShapeCount = psSubNode->nShapeCount;
        assert(psTreeNode->panShapeIds == NULL);
        psTreeNode->panShapeIds = psSubNode->panShapeIds;
        assert(psTreeNode->papsShapeObj == NULL);
        psTreeNode->papsShapeObj = psSubNode->papsShapeObj;
        psTreeNode->nSubNodes = psSubNode->nSubNodes;
        for( i = 0; i < psSubNode->nSubNodes; i++ )
            psTreeNode->apsSubNode[i] = psSubNode->apsSubNode[i];
        free(psSubNode);
    }

/* -------------------------------------------------------------------- */
/*      We should be trimmed if we have no subnodes, and no shapes.     */
/* -------------------------------------------------------------------- */
    return( psTreeNode->nSubNodes == 0 && psTreeNode->nShapeCount == 0 );
}