@param startPoint the start point for snapping (in pixel coordinates)

@param snappingResult the list where the results are inserted (everything in map coordinate system)

@return 0 in case of success*/

//setters

void setSnapLayers( const QList<QgsSnapper::SnapLayer>& snapLayers );

@param snap_to snap to vertex or to segment

@param snappingTol snapping tolerance. -1 means that the search radius for vertex edits is taken

@param excludePoints a list with (map coordinate) points that should be excluded in the snapping result. Useful e.g. for vertex moves where a vertex should not be snapped to its original position*/

/**Snaps to the background layers. This method is usefull to align the features of the

edited layers to those of other layers (as described in the project properties).

Uses snap mode QgsSnapper::SnapWithOneResult. Therefore, only the

@param result snapped point

@param excludePoints a list with (map coordinate) points that should be excluded in the snapping result. Useful e.g. for vertex moves where a vertex should not be snapped to its original position

@return 0 in case of success*/

void setMapCanvas( QgsMapCanvas* canvas );