QGIS API Documentation 3.29.0-Master (19d7edcfed)
qgsmeshlayerutils.h
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1/***************************************************************************
2 qgsmeshlayerutils.h
3 --------------------------
4 begin : August 2018
5 copyright : (C) 2018 by Martin Dobias
6 email : wonder dot sk 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 QGSMESHLAYERUTILS_H
19#define QGSMESHLAYERUTILS_H
20
21#define SIP_NO_FILE
22
23#include "qgis_core.h"
24#include "qgsrectangle.h"
25#include "qgsmaptopixel.h"
26#include "qgsmeshdataprovider.h"
28
29#include <QVector>
30#include <QSize>
31
33
39class QgsMeshLayer;
40
48class CORE_EXPORT QgsMeshLayerUtils
49{
50 public:
51
60 static int datasetValuesCount( const QgsMesh *mesh, QgsMeshDatasetGroupMetadata::DataType dataType );
61
69
79 static QgsMeshDataBlock datasetValues(
80 const QgsMeshLayer *meshLayer,
82 int valueIndex,
83 int count );
84
98 static QVector<QgsVector> griddedVectorValues(
99 const QgsMeshLayer *meshLayer,
100 const QgsMeshDatasetIndex index,
101 double xSpacing,
102 double ySpacing,
103 const QSize &size,
104 const QgsPointXY &minCorner );
105
111 static QVector<double> calculateMagnitudes( const QgsMeshDataBlock &block );
112
123 static void boundingBoxToScreenRectangle(
124 const QgsMapToPixel &mtp,
125 const QSize &outputSize,
126 const QgsRectangle &bbox,
127 int &leftLim,
128 int &rightLim,
129 int &bottomLim,
130 int &topLim );
131
137 static QgsRectangle boundingBoxToScreenRectangle(
138 const QgsMapToPixel &mtp,
139 const QgsRectangle &bbox
140 );
141
148 static double interpolateFromVerticesData(
149 double fraction,
150 double val1, double val2
151 );
152
159 static QgsMeshDatasetValue interpolateFromVerticesData( double fraction,
160 const QgsMeshDatasetValue &val1, const QgsMeshDatasetValue &val2
161 );
162
174 static double interpolateFromVerticesData(
175 const QgsPointXY &p1, const QgsPointXY &p2, const QgsPointXY &p3,
176 double val1, double val2, double val3, const QgsPointXY &pt
177 );
178
186 static double interpolateZForPoint( const QgsTriangularMesh &mesh, double x, double y );
187
201 static QgsVector interpolateVectorFromVerticesData(
202 const QgsPointXY &p1, const QgsPointXY &p2, const QgsPointXY &p3,
203 QgsVector vect1, QgsVector vect2, QgsVector vect3, const QgsPointXY &pt
204 );
205
215 static double interpolateFromFacesData(
216 const QgsPointXY &p1, const QgsPointXY &p2, const QgsPointXY &p3,
217 double val, const QgsPointXY &pt );
218
230 static QgsVector interpolateVectorFromFacesData(
231 const QgsPointXY &p1, const QgsPointXY &p2, const QgsPointXY &p3,
232 QgsVector vect, const QgsPointXY &pt );
233
239 static QVector<double> interpolateFromFacesData(
240 QVector<double> valuesOnFaces,
241 const QgsMesh *nativeMesh,
242 const QgsTriangularMesh *triangularMesh,
243 QgsMeshDataBlock *active,
245 );
246
252 static QVector<double> interpolateFromFacesData(
253 const QVector<double> &valuesOnFaces,
254 const QgsMesh &nativeMesh,
255 QgsMeshDataBlock *active,
257 );
258
264 static QVector<double> interpolateFromFacesData(
265 const QVector<double> &valuesOnFaces,
266 const QgsMesh &nativeMesh,
267 const QgsMeshDataBlock &active,
269 );
270
276 static QVector<double> resampleFromVerticesToFaces(
277 const QVector<double> valuesOnVertices,
278 const QgsMesh *nativeMesh,
279 const QgsTriangularMesh *triangularMesh,
280 const QgsMeshDataBlock *active,
282 );
283
294 static QVector<double> calculateMagnitudeOnVertices(
295 const QgsMeshLayer *meshLayer,
296 const QgsMeshDatasetIndex index,
297 QgsMeshDataBlock *activeFaceFlagValues,
299
312 static QVector<double> calculateMagnitudeOnVertices(
313 const QgsMesh &nativeMesh,
314 const QgsMeshDatasetGroupMetadata &groupMetadata,
315 const QgsMeshDataBlock &datasetValues,
316 const QgsMeshDataBlock &activeFaceFlagValues,
318
319
320
328 static QgsRectangle triangleBoundingBox( const QgsPointXY &p1, const QgsPointXY &p2, const QgsPointXY &p3 );
329
338 static QString formatTime( double hours, const QDateTime &referenceTime, const QgsMeshTimeSettings &settings );
339
348 static QVector<QVector3D> calculateNormals(
349 const QgsTriangularMesh &triangularMesh,
350 const QVector<double> &verticalMagnitude,
351 bool isRelative );
352};
353
355
356#endif // QGSMESHLAYERUTILS_H
Perform transforms between map coordinates and device coordinates.
Definition: qgsmaptopixel.h:39
Abstract class to interpolate 3d stacked mesh data to 2d data.
QgsMeshDataBlock is a block of integers/doubles that can be used to retrieve: active flags (e....
QgsMeshDatasetGroupMetadata is a collection of dataset group metadata such as whether the data is vec...
DataType
Location of where data is specified for datasets in the dataset group.
QgsMeshDatasetIndex is index that identifies the dataset group (e.g.
QgsMeshDatasetValue represents single dataset value.
Represents a mesh layer supporting display of data on structured or unstructured meshes.
Definition: qgsmeshlayer.h:100
DataResamplingMethod
Resampling of value from dataset.
@ NeighbourAverage
Does a simple average of values defined for all surrounding faces/vertices.
Represents a mesh time settings for mesh datasets.
A class to represent a 2D point.
Definition: qgspointxy.h:59
A rectangle specified with double values.
Definition: qgsrectangle.h:42
Triangular/Derived Mesh is mesh with vertices in map coordinates.
A class to represent a vector.
Definition: qgsvector.h:30
Mesh - vertices, edges and faces.