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class QgsRasterCalcNode
{
%TypeHeaderCode
#include <qgsrastercalcnode.h>
%End
public:
//! defines possible types of node
enum Type
{
tOperator,
tNumber,
tRasterRef
};
//! possible operators
enum Operator
{
opPLUS,
opMINUS,
opMUL,
opDIV,
opPOW,
opSQRT,
opSIN,
opCOS,
opTAN,
opASIN,
opACOS,
opATAN,
opEQ, // =
opNE, //!=
opGT, // >
opLT, // <
opGE, // >=
opLE, // <=
opAND,
opOR,
opSIGN //change sign
};
QgsRasterCalcNode();
QgsRasterCalcNode( double number );
QgsRasterCalcNode( Operator op, QgsRasterCalcNode* left, QgsRasterCalcNode* right );
QgsRasterCalcNode( const QString& rasterName );
~QgsRasterCalcNode();
Type type() const;
//set left node
void setLeft( QgsRasterCalcNode* left );
void setRight( QgsRasterCalcNode* right );
/**Calculates result (might be real matrix or single number)*/
bool calculate( QMap<QString, QgsRasterMatrix*>& rasterData, QgsRasterMatrix& result ) const;
static QgsRasterCalcNode* parseRasterCalcString( const QString& str, QString& parserErrorMsg ) /Factory/;
};
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