mitab_capi.cpp

在linux环境下

        poPen = ((TABEllipse *) poFeature);

    if( poFeature->GetFeatureClass() == TABFC_Text )
        poPen = ((TABText *) poFeature);

    if( poPen != NULL )
    {
        return poPen->GetPenColor_wyl();
    }

    return 0x000000;
}

/************************************************************************/
/*                       mitab_c_get_pen_width()                        */
/************************************************************************/

/**
 * Get an object's pen width property.  Applies only to polyline, region, 
 * rectangle, arc and ellipse objects.
 *
 * @param feature the mitab_feature object.
 * @return the pen as defined in the MIF specs:  1-7 for pixel 
 *        width, or 11-2047 for width in points (10 + (point_width*10)).
 */

int MITAB_STDCALL
mitab_c_get_pen_width( mitab_feature feature )
    
{
    TABFeature          *poFeature = (TABFeature *) feature;
    ITABFeaturePen      *poPen = NULL;

    if( poFeature->GetFeatureClass() == TABFC_Polyline )
        poPen = ((TABPolyline *) poFeature);
    
    if( poFeature->GetFeatureClass() == TABFC_Region )
        poPen = ((TABRegion *) poFeature);

    if( poFeature->GetFeatureClass() == TABFC_Rectangle )
        poPen = ((TABRectangle *) poFeature);

    if( poFeature->GetFeatureClass() == TABFC_Arc )
        poPen = ((TABArc *) poFeature);

    if( poFeature->GetFeatureClass() == TABFC_Ellipse )
        poPen = ((TABEllipse *) poFeature);

    if( poFeature->GetFeatureClass() == TABFC_Text )
        poPen = ((TABText *) poFeature);

    if( poPen != NULL )
    {
        return poPen->GetPenWidthMIF();
    }

    return 0;
}

/************************************************************************/
/*                      mitab_c_get_pen_pattern()                       */
/************************************************************************/

/**
 * Get an object's pen pattern property.  Applies only to polyline, region, 
 * rectangle, arc and ellipse objects.
 *
 * @param feature the mitab_feature object.
 * @return the pen pattern number (2 is default solid pen).
 */

int MITAB_STDCALL
mitab_c_get_pen_pattern( mitab_feature feature )
    
{
    TABFeature          *poFeature = (TABFeature *) feature;
    ITABFeaturePen      *poPen = NULL;

    if( poFeature->GetFeatureClass() == TABFC_Polyline )
        poPen = ((TABPolyline *) poFeature);
    
    if( poFeature->GetFeatureClass() == TABFC_Region )
        poPen = ((TABRegion *) poFeature);

    if( poFeature->GetFeatureClass() == TABFC_Rectangle )
        poPen = ((TABRectangle *) poFeature);

    if( poFeature->GetFeatureClass() == TABFC_Arc )
        poPen = ((TABArc *) poFeature);

    if( poFeature->GetFeatureClass() == TABFC_Ellipse )
        poPen = ((TABEllipse *) poFeature);

    if( poFeature->GetFeatureClass() == TABFC_Text )
        poPen = ((TABText *) poFeature);

    if( poPen != NULL )
    {
        return poPen->GetPenPattern_wyl();
    }

    return 0x000000;
}


/************************************************************************/
/*                         mitab_c_set_symbol()                         */
/************************************************************************/

/**
 * Set an object's symbol properties.  Applies only to point objects and
 * multipoint.
 *
 * See the MIF specs for more details on the meaning and valid values of
 * each parameter.
 *
 * @param feature the mitab_feature object.
 * @param symbol_no the symbol number (valid range: 32 to 67)
 * @param symbol_size the symbol size in pixels (valid range 1 to 48)
 * @param symbol_color the symbol color (24 bits RGB value)
 */

void MITAB_STDCALL
mitab_c_set_symbol( mitab_feature feature, int symbol_no,
                    int symbol_size, int symbol_color )

{
    TABPoint    *poFeature = (TABPoint *) feature;

    if(( poFeature->GetFeatureClass() == TABFC_Point ) ||
       ( poFeature->GetFeatureClass() == TABFC_FontPoint ) ||
       ( poFeature->GetFeatureClass() == TABFC_CustomPoint ) ||
       ( poFeature->GetFeatureClass() == TABFC_MultiPoint ))
    {
        poFeature->SetSymbolNo( symbol_no );
        poFeature->SetSymbolSize( symbol_size );
        poFeature->SetSymbolColor( symbol_color );
    }
}                                                               

/************************************************************************/
/*                     mitab_c_get_symbol_color()                       */
/************************************************************************/

/**
 * Get an object's symbol color property.  Applies only to point and 
 * multipoint objects.
 *
 * @param feature the mitab_feature object.
 * @return the symbol color (24 bits RGB value).
 */

int MITAB_STDCALL
mitab_c_get_symbol_color( mitab_feature feature )
    
{
    TABPoint    *poFeature = (TABPoint *) feature;

    if(( poFeature->GetFeatureClass() == TABFC_Point ) ||
       ( poFeature->GetFeatureClass() == TABFC_MultiPoint ))
    {
        return poFeature->GetSymbolColor();
    }
    return 0x000000;
}

/************************************************************************/
/*                       mitab_c_get_symbol_no()                        */
/************************************************************************/

/**
 * Get an object's symbol number property.  Applies only to point and 
 * multipoint objects.
 *
 * @param feature the mitab_feature object.
 * @return the symbol number (valid range: 32 to 67)
 */

int MITAB_STDCALL
mitab_c_get_symbol_no( mitab_feature feature )
    
{
    TABPoint    *poFeature = (TABPoint *) feature;

    if(( poFeature->GetFeatureClass() == TABFC_Point ) ||
       ( poFeature->GetFeatureClass() == TABFC_MultiPoint ))
    {
        return poFeature->GetSymbolNo();
    }
    return 0;
}

/************************************************************************/
/*                     mitab_c_get_symbol_size()                        */
/************************************************************************/

/**
 * Get an object's symbol size property.  Applies only to point and 
 * multipoint objects.
 *
 * @param feature the mitab_feature object.
 * @return the symbol size in pixels (valid range 1 to 48)
 */

int MITAB_STDCALL
mitab_c_get_symbol_size( mitab_feature feature )
    
{
    TABPoint    *poFeature = (TABPoint *) feature;

    if(( poFeature->GetFeatureClass() == TABFC_Point ) ||
       ( poFeature->GetFeatureClass() == TABFC_MultiPoint ))
    {
        return poFeature->GetSymbolSize();
    }
    return 1;
}


/************************************************************************/
/*                          mitab_c_get_type()                          */
/************************************************************************/

/**
 * Return a mitab_feature's object type
 *
 * @param feature the mitab_feature object.
 * @return the feature type, one of TABFC_NoGeom (0), TABFC_Point (1), 
 *         TABFC_FontPoint (2), TABFC_CustomPoint (3), TABFC_Text (4),
 *         TABFC_Polyline (5), TABFC_Arc (6), TABFC_Region (7),
 *         TABFC_Rectangle (8), TABFC_Ellipse (9) or TABFC_MultiPoint (10).
 */

int MITAB_STDCALL 
mitab_c_get_type( mitab_feature feature )
{
    TABFeature          *poFeature = (TABFeature *) feature;

    if (poFeature)
        return poFeature->GetFeatureClass();

    return 0;
}



/************************************************************************/
/*                         mitab_c_get_parts()                          */
/************************************************************************/

/**
 * Return the number of parts (rings or polyline segments) in an object.
 *
 * @param feature the mitab_feature object.
 * @return the number of parts (in a region or polyline) or 0 if the object's
 *         geometry was not set.  For all object types other than polyline 
 *         region, returns 1 if object geometry is set.
 */

int MITAB_STDCALL 
mitab_c_get_parts( mitab_feature feature )
{
    int numParts = 0;

    if (_mitab_c_get_feature_info( feature, INFO_NUMPARTS, &numParts, 
                                   NULL, NULL ) == 0)
    {
        return numParts;
    }

    return 0;
}

/************************************************************************/
/*                   mitab_c_region_isinteriorring()                    */
/************************************************************************/

/**
 * Return a false if te ring is the first of a polygon.
 *
 * @param feature the mitab_feature object.
 * @param requestedringindex the requested ring index
 *
 * @return true or false depends on the part number of the ring in the polygon,
 *         true if it's not the first part of a polygon. If the feature is not
 *         a region the return value will be false.
 */
int MITAB_DLL MITAB_STDCALL 
mitab_c_is_interior_ring( mitab_feature feature, int requestedringindex )
{
    TABFeature  *poFeature = (TABFeature *) feature;

    if( poFeature->GetFeatureClass() == TABFC_Region )
    {
        TABRegion *poRegion = (TABRegion *) poFeature;

        return poRegion->IsInteriorRing( requestedringindex );
    }
    return 0;
}


/************************************************************************/
/*                      mitab_c_get_vertex_count()                      */
/************************************************************************/

/**
 * Return the number of points in a part of a mitab_feature object.
 *
 * @param feature the mitab_feature object.
 * @param part the part number we are interested in.  Use 0 for objects which
 *         cannot have multiple parts.
 * @return the number of points in that feature's part or 0 if the object
 *         has no geometry or the part number is invalid.
 */

int MITAB_STDCALL
mitab_c_get_vertex_count( mitab_feature feature, int part )
{
    int numPoints = 0;

    if (_mitab_c_get_feature_info( feature, INFO_NUMPOINTS, &part, 
                                   &numPoints, NULL ) == 0)
    {
        return numPoints;
    }

    return 0;
}

/************************************************************************/
/*                        mitab_c_get_vertex_x()                        */
/************************************************************************/

/** 
 * Return the X coordinate of a point in a part of a mitab_feature object.
 *
 * @param feature the mitab_feature object.
 * @param part the part number we are interested in.  Use 0 for objects which
 *         cannot have multiple parts.
 * @param point the point number, with 0 being the first point.
 * @return the X coordinate of the specified point or if the object has no
 *         geometry or the part or the point number is invalid.
 */

double MITAB_STDCALL
mitab_c_get_vertex_x( mitab_feature feature, int part, int vertex )
{
    double dX = 0.0;

    if (_mitab_c_get_feature_info( feature, INFO_XVERTEX, &part, 
                                   &vertex, &dX ) == 0)
    {
        return dX;
    }

    return 0.0;
}

/************************************************************************/
/*                        mitab_c_get_vertex_x()                        */
/************************************************************************/

/** 
 * Return the Y coordinate of a point in a part of a mitab_feature object.
 *
 * @param feature the mitab_feature object.
 * @param part the part number we are interested in.  Use 0 for objects which
 *         cannot have multiple parts.
 * @param point the point number, with 0 being the first point.
 * @return the Y coordinate of the specified point or if the object has no
 *         geometry or the part or the point number is invalid.
 */

double MITAB_STDCALL
mitab_c_get_vertex_y( mitab_feature feature, int part, int vertex )
{
    double dY = 0.0;

    if (_mitab_c_get_feature_info( feature, INFO_YVERTEX, &part, 
                                   &vertex, &dY ) == 0)
    {
        return dY;
    }

    return 0.0;
}

/************************************************************************/
/*                      mitab_c_get_field_count()                       */
/************************************************************************/

/**
 * Return the number of attribute f