QGIS API Documentation 3.39.0-Master (be2050b798e)
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qgsmeshcalcutils.h
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1/***************************************************************************
2 qgsmeshcalcutils.h
3 ------------------
4 begin : December 18th, 2018
5 copyright : (C) 2018 by Peter Petrik
6 email : zilolv at gmail dot com
7 ***************************************************************************/
8
9/***************************************************************************
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
15 * *
16 ***************************************************************************/
17
18#ifndef QGSMESHCALCUTILS_H
19#define QGSMESHCALCUTILS_H
20
21#define SIP_NO_FILE
22
24
25#include <QStringList>
26#include <QMap>
27#include <QVector>
28
29#include <algorithm>
30#include <functional>
31#include <math.h>
32#include <numeric>
33
34#include "qgsrectangle.h"
35#include "qgsmeshlayer.h"
36#include "qgsmeshdataprovider.h"
37#include "qgis_core.h"
38
49class CORE_EXPORT QgsMeshCalcUtils
50{
51 public:
52
63 QgsMeshCalcUtils( QgsMeshLayer *layer,
64 const QStringList &usedGroupNames,
65 double startTime,
66 double endTime );
67
83 Q_DECL_DEPRECATED QgsMeshCalcUtils( QgsMeshLayer *layer,
84 const QStringList &usedGroupNames,
85 const QgsInterval &relativeTime );
86
105 QgsMeshCalcUtils( QgsMeshLayer *layer,
106 const QStringList &usedGroupNames,
107 const QStringList &usedGroupNamesForAggregate,
108 const QgsInterval &relativeTime,
109 const QgsInterval &startTime,
110 const QgsInterval &endTime );
111
112
114 bool isValid() const;
115
117 const QgsMeshLayer *layer() const;
118
120 std::shared_ptr<const QgsMeshMemoryDatasetGroup> group( const QString &groupName ) const;
121
123 void ones( QgsMeshMemoryDatasetGroup &group1 ) const;
124
126 void nodata( QgsMeshMemoryDatasetGroup &group1 ) const;
127
129 std::shared_ptr<QgsMeshMemoryDataset> number( double val, double time ) const;
130
132 void copy( QgsMeshMemoryDatasetGroup &group1, const QString &groupName, bool forAggregate = false ) const;
133
135 std::shared_ptr<QgsMeshMemoryDataset> copy( std::shared_ptr<const QgsMeshMemoryDataset> dataset0 ) const;
136
138 void transferDatasets( QgsMeshMemoryDatasetGroup &group1, QgsMeshMemoryDatasetGroup &group2 ) const;
139
141 void expand( QgsMeshMemoryDatasetGroup &group1,
142 const QgsMeshMemoryDatasetGroup &group2 ) const;
143
145 void number( QgsMeshMemoryDatasetGroup &group1, double val ) const;
146
148 void addIf( QgsMeshMemoryDatasetGroup &trueGroup,
149 const QgsMeshMemoryDatasetGroup &falseGroup,
150 const QgsMeshMemoryDatasetGroup &condition ) const;
151
153 void filter( QgsMeshMemoryDatasetGroup &group1, const QgsRectangle &extent ) const;
154
156 void filter( QgsMeshMemoryDatasetGroup &group1, const QgsGeometry &mask ) const;
157
159 void logicalNot( QgsMeshMemoryDatasetGroup &group1 ) const;
160
162 void changeSign( QgsMeshMemoryDatasetGroup &group1 ) const;
163
165 void abs( QgsMeshMemoryDatasetGroup &group1 ) const;
166
168 void sumAggregated( QgsMeshMemoryDatasetGroup &group1 ) const;
169
171 void minimumAggregated( QgsMeshMemoryDatasetGroup &group1 ) const;
172
174 void maximumAggregated( QgsMeshMemoryDatasetGroup &group1 ) const;
175
177 void averageAggregated( QgsMeshMemoryDatasetGroup &group1 ) const;
178
180 void add( QgsMeshMemoryDatasetGroup &group1, const QgsMeshMemoryDatasetGroup &group2 ) const;
181
183 void subtract( QgsMeshMemoryDatasetGroup &group1, const QgsMeshMemoryDatasetGroup &group2 ) const;
184
186 void multiply( QgsMeshMemoryDatasetGroup &group1, const QgsMeshMemoryDatasetGroup &group2 ) const;
187
189 void divide( QgsMeshMemoryDatasetGroup &group1, const QgsMeshMemoryDatasetGroup &group2 ) const;
190
192 void power( QgsMeshMemoryDatasetGroup &group1, const QgsMeshMemoryDatasetGroup &group2 ) const;
193
195 void equal( QgsMeshMemoryDatasetGroup &group1, const QgsMeshMemoryDatasetGroup &group2 ) const;
196
198 void notEqual( QgsMeshMemoryDatasetGroup &group1, const QgsMeshMemoryDatasetGroup &group2 ) const;
199
201 void greaterThan( QgsMeshMemoryDatasetGroup &group1, const QgsMeshMemoryDatasetGroup &group2 ) const;
202
204 void lesserThan( QgsMeshMemoryDatasetGroup &group1, const QgsMeshMemoryDatasetGroup &group2 ) const;
205
207 void lesserEqual( QgsMeshMemoryDatasetGroup &group1, const QgsMeshMemoryDatasetGroup &group2 ) const;
208
210 void greaterEqual( QgsMeshMemoryDatasetGroup &group1, const QgsMeshMemoryDatasetGroup &group2 ) const;
211
213 void logicalAnd( QgsMeshMemoryDatasetGroup &group1, const QgsMeshMemoryDatasetGroup &group2 ) const;
214
216 void logicalOr( QgsMeshMemoryDatasetGroup &group1, const QgsMeshMemoryDatasetGroup &group2 ) const;
217
219 void minimum( QgsMeshMemoryDatasetGroup &group1, const QgsMeshMemoryDatasetGroup &group2 ) const;
220
222 void maximum( QgsMeshMemoryDatasetGroup &group1, const QgsMeshMemoryDatasetGroup &group2 ) const;
223
225 static QgsMeshDatasetGroupMetadata::DataType determineResultDataType( QgsMeshLayer *layer, const QStringList &usedGroupNames );
226
228 QgsMeshDatasetGroupMetadata::DataType outputType() const;
229
230 private:
231 double ffilter( double val1, double filter ) const;
232 double fadd( double val1, double val2 ) const;
233 double fsubtract( double val1, double val2 ) const;
234 double fmultiply( double val1, double val2 ) const;
235 double fdivide( double val1, double val2 ) const;
236 double fpower( double val1, double val2 ) const;
237 double fequal( double val1, double val2 ) const;
238 double fnotEqual( double val1, double val2 ) const;
239 double fgreaterThan( double val1, double val2 ) const;
240 double flesserThan( double val1, double val2 ) const;
241 double flesserEqual( double val1, double val2 ) const;
242 double fgreaterEqual( double val1, double val2 ) const;
243 double flogicalAnd( double val1, double val2 ) const;
244 double flogicalOr( double val1, double val2 ) const;
245 double flogicalNot( double val1 ) const;
246 double fchangeSign( double val1 ) const;
247 double fmin( double val1, double val2 ) const;
248 double fmax( double val1, double val2 ) const;
249 double fabs( double val1 ) const;
250 double fsumAggregated( QVector<double> &vals ) const;
251 double fminimumAggregated( QVector<double> &vals ) const;
252 double fmaximumAggregated( QVector<double> &vals ) const;
253 double faverageAggregated( QVector<double> &vals ) const;
254
262 std::shared_ptr<QgsMeshMemoryDatasetGroup> createMemoryDatasetGroup( const QString &datasetGroupName,
263 const QgsInterval &relativeTime = QgsInterval(),
264 const QgsInterval &startTime = QgsInterval(),
265 const QgsInterval &endTime = QgsInterval() ) const;
266
275 std::shared_ptr<const QgsMeshMemoryDatasetGroup> group( const QString &groupName, bool isAggregate ) const;
276
280 std::shared_ptr<QgsMeshMemoryDataset> createMemoryDataset( const QgsMeshMemoryDatasetGroup &grp ) const;
281
285 std::shared_ptr<QgsMeshMemoryDataset> createMemoryDataset( const QgsMeshDatasetIndex &datasetIndex ) const;
286
290 std::shared_ptr<QgsMeshMemoryDataset> createMemoryDataset( const QgsMeshDatasetGroupMetadata::DataType type ) const;
291
295 std::shared_ptr<QgsMeshMemoryDataset> canditateDataset( QgsMeshMemoryDatasetGroup &group,
296 int datasetIndex ) const;
297
301 std::shared_ptr<const QgsMeshMemoryDataset> constCandidateDataset( const QgsMeshMemoryDatasetGroup &group,
302 int datasetIndex ) const;
303
307 int datasetCount( const QgsMeshMemoryDatasetGroup &group1, const QgsMeshMemoryDatasetGroup &group2 ) const;
308
314 void activate( std::shared_ptr<QgsMeshMemoryDataset> dataset,
315 std::shared_ptr<const QgsMeshMemoryDataset> refDataset = nullptr ) const;
316
318 void activate( QgsMeshMemoryDatasetGroup &group ) const;
319
321 void populateSpatialFilter( QgsMeshMemoryDatasetGroup &filter, const QgsRectangle &extent ) const; // create a filter from extent
322
324 void populateMaskFilter( QgsMeshMemoryDatasetGroup &filter, const QgsGeometry &mask ) const; // create a filter from mask
325
327 void func1( QgsMeshMemoryDatasetGroup &group,
328 std::function<double( double )> func ) const;
329
331 void func2( QgsMeshMemoryDatasetGroup &group1,
332 const QgsMeshMemoryDatasetGroup &group2,
333 std::function<double( double, double )> func ) const;
334
336 void funcAggr( QgsMeshMemoryDatasetGroup &group1,
337 std::function<double( QVector<double>& )> func ) const;
338
339 const QgsTriangularMesh *triangularMesh() const;
340 const QgsMesh *nativeMesh() const;
341 void updateMesh() const;
342
343 QgsMeshLayer *mMeshLayer;
344 bool mIsValid;
347 QVector<double> mTimes;
348 QMap < QString, std::shared_ptr<QgsMeshMemoryDatasetGroup> > mDatasetGroupMap;
349 QMap < QString, std::shared_ptr<QgsMeshMemoryDatasetGroup> > mDatasetGroupMapForAggregate;
350
351 bool mIgnoreTime = false; // with virtual datasetgroup, we only consider the current time step, except for aggregate function where we don't care about time value
352};
353
355
356#endif // QGSMESHCALCUTILS_H
A geometry is the spatial representation of a feature.
A representation of the interval between two datetime values.
Definition qgsinterval.h:46
DataType
Location of where data is specified for datasets in the dataset group.
QgsMeshDatasetIndex is index that identifies the dataset group (e.g.
Represents a mesh layer supporting display of data on structured or unstructured meshes.
Class that represents a dataset group stored in memory.
A rectangle specified with double values.
Triangular/Derived Mesh is mesh with vertices in map coordinates.
Mesh - vertices, edges and faces.