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src
analysis
raster
qgsrastermatrix.h
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/***************************************************************************
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qgsrastermatrix.h
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-----------------
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begin : 2010-10-23
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copyright : (C) 20010 by Marco Hugentobler
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email : marco dot hugentobler at sourcepole dot ch
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSRASTERMATRIX_H
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#define QGSRASTERMATRIX_H
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class
ANALYSIS_EXPORT
QgsRasterMatrix
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{
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public
:
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enum
TwoArgOperator
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{
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opPLUS
,
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opMINUS
,
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opMUL
,
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opDIV
,
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opPOW
,
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opEQ
,
// =
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opNE
,
// != resp. <>
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opGT
,
// >
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opLT
,
// <
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opGE
,
// >=
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opLE
,
// <=
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opAND
,
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opOR
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};
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enum
OneArgOperator
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{
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opSQRT
,
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opSIN
,
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opCOS
,
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opTAN
,
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opASIN
,
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opACOS
,
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opATAN
,
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opSIGN
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};
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QgsRasterMatrix
();
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QgsRasterMatrix
(
int
nCols,
int
nRows,
float
* data,
double
nodataValue );
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QgsRasterMatrix
(
const
QgsRasterMatrix
& m );
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~
QgsRasterMatrix
();
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bool
isNumber
()
const
{
return
( mColumns == 1 && mRows == 1 ); }
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double
number
()
const
{
return
mData[0]; }
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float
*
data
() {
return
mData; }
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float
* takeData();
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void
setData(
int
cols,
int
rows,
float
* data,
double
nodataValue );
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int
nColumns
()
const
{
return
mColumns; }
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int
nRows
()
const
{
return
mRows; }
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double
nodataValue
()
const
{
return
mNodataValue; }
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void
setNodataValue
(
double
d ) { mNodataValue = d; }
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QgsRasterMatrix
& operator=(
const
QgsRasterMatrix
& m );
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bool
add(
const
QgsRasterMatrix
& other );
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bool
subtract(
const
QgsRasterMatrix
& other );
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bool
multiply(
const
QgsRasterMatrix
& other );
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bool
divide(
const
QgsRasterMatrix
& other );
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bool
power
(
const
QgsRasterMatrix
& other );
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bool
equal(
const
QgsRasterMatrix
& other );
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bool
notEqual(
const
QgsRasterMatrix
& other );
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bool
greaterThan(
const
QgsRasterMatrix
& other );
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bool
lesserThan(
const
QgsRasterMatrix
& other );
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bool
greaterEqual(
const
QgsRasterMatrix
& other );
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bool
lesserEqual(
const
QgsRasterMatrix
& other );
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bool
logicalAnd(
const
QgsRasterMatrix
& other );
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bool
logicalOr(
const
QgsRasterMatrix
& other );
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bool
squareRoot();
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bool
sinus();
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bool
asinus();
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bool
cosinus();
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bool
acosinus();
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bool
tangens();
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bool
atangens();
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bool
changeSign();
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private
:
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int
mColumns
;
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int
mRows
;
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float
*
mData
;
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double
mNodataValue
;
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bool
twoArgumentOperation(
TwoArgOperator
op,
const
QgsRasterMatrix
& other );
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/*sqrt, sin, cos, tan, asin, acos, atan*/
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bool
oneArgumentOperation(
OneArgOperator
op );
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bool
testPowerValidity(
double
base,
double
power
);
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};
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#endif // QGSRASTERMATRIX_H
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