QGIS/python/core/qgstolerance.sip
wonder 4f14c52aed Fixed handling of tolerance for projected layers (#1634).
Patch contributed by Richard Kostecky.


git-svn-id: http://svn.osgeo.org/qgis/trunk@10555 c8812cc2-4d05-0410-92ff-de0c093fc19c
2009-04-13 10:55:56 +00:00

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class QgsTolerance
{
%TypeHeaderCode
#include <qgstolerance.h>
%End
public:
/**Type of unit of tolerance value from settings*/
enum UnitType
{
/**Map unit value*/
MapUnits,
/**Pixels unit of tolerance*/
Pixels
};
/**
* Static function to get vertex tolerance value for a layer.
* The value is read from settings and transformed if necessary.
* @return value of vertex tolerance in map units
*/
static double vertexSearchRadius( QgsMapLayer* layer, QgsMapRenderer* renderer );
/**
* Static function to get default tolerance value for a layer.
* The value is read from settings and transformed if necessary.
* @return value of default tolerance in map units
*/
static double defaultTolerance( QgsMapLayer* layer, QgsMapRenderer* renderer );
/**
* Static function to translate tolerance value into current map unit value
* @param tolerace tolerance value to be translated
* @param units type of units to be translated
* @return value of tolerance in map units
*/
static double toleranceInMapUnits( double tolerance, QgsMapLayer* layer, QgsMapRenderer* renderer, UnitType units = MapUnits );
};