QGIS API Documentation  2.5.0-Master
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Modules Pages
qgsrastercalcnode.h
Go to the documentation of this file.
1 /***************************************************************************
2  qgsrastercalcnode.h
3  Node for raster calculator tree
4  --------------------
5  begin : 2010-10-23
6  copyright : (C) 20010 by Marco Hugentobler
7  email : marco dot hugentobler at sourcepole dot ch
8 ***************************************************************************/
9 
10 /***************************************************************************
11  * *
12  * This program is free software; you can redistribute it and/or modify *
13  * it under the terms of the GNU General Public License as published by *
14  * the Free Software Foundation; either version 2 of the License, or *
15  * (at your option) any later version. *
16  * *
17  ***************************************************************************/
18 
19 #ifndef QGSRASTERCALCNODE_H
20 #define QGSRASTERCALCNODE_H
21 
22 #include "qgsrastermatrix.h"
23 #include <QMap>
24 #include <QString>
25 
26 class ANALYSIS_EXPORT QgsRasterCalcNode
27 {
28  public:
30  enum Type
31  {
32  tOperator = 1,
34  tRasterRef
35  };
36 
38  enum Operator
39  {
52  opEQ, // =
53  opNE,
54  opGT, // >
55  opLT, // <
56  opGE, // >=
57  opLE, // <=
60  opSIGN //change sign
61  };
62 
64  QgsRasterCalcNode( double number );
65  QgsRasterCalcNode( Operator op, QgsRasterCalcNode* left, QgsRasterCalcNode* right );
66  QgsRasterCalcNode( const QString& rasterName );
68 
69  Type type() const { return mType; }
70 
71  //set left node
72  void setLeft( QgsRasterCalcNode* left ) { delete mLeft; mLeft = left; }
73  void setRight( QgsRasterCalcNode* right ) { delete mRight; mRight = right; }
74 
76  bool calculate( QMap<QString, QgsRasterMatrix*>& rasterData, QgsRasterMatrix& result ) const;
77 
78  static QgsRasterCalcNode* parseRasterCalcString( const QString& str, QString& parserErrorMsg );
79 
80  private:
81  Type mType;
82  QgsRasterCalcNode* mLeft;
83  QgsRasterCalcNode* mRight;
84  double mNumber;
85  QString mRasterName;
86  Operator mOperator;
87 };
88 
89 
90 #endif // QGSRASTERCALCNODE_H
Definition: qgsrastercalcnode.h:33
Definition: qgsrastercalcnode.h:55
Definition: qgsrastercalcnode.h:41
Definition: qgsrastercalcnode.h:42
Definition: qgsrastercalcnode.h:58
Definition: qgsrastercalcnode.h:40
Definition: qgsrastercalcnode.h:56
Definition: qgsrastercalcnode.h:53
Definition: qgsrastercalcnode.h:43
Type
defines possible types of node
Definition: qgsrastercalcnode.h:30
Operator
possible operators
Definition: qgsrastercalcnode.h:38
=
Definition: qgsrastercalcnode.h:54
Definition: qgsrastercalcnode.h:59
Definition: qgsrastercalcnode.h:46
Definition: qgsrastercalcnode.h:45
Definition: qgsrastermatrix.h:21
Definition: qgsrastercalcnode.h:26
Definition: qgsrastercalcnode.h:44
Definition: qgsrastercalcnode.h:52
Definition: qgsrastercalcnode.h:49
Definition: qgsrastercalcnode.h:48
Definition: qgsrastercalcnode.h:57
void setLeft(QgsRasterCalcNode *left)
Definition: qgsrastercalcnode.h:72
void setRight(QgsRasterCalcNode *right)
Definition: qgsrastercalcnode.h:73
Definition: qgsrastercalcnode.h:47
Definition: qgsrastercalcnode.h:50
Type type() const
Definition: qgsrastercalcnode.h:69
Definition: qgsrastercalcnode.h:51