QGIS API Documentation 3.30.0-'s-Hertogenbosch (f186b8efe0)
qgsmeshlayerprofilegenerator.h
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1/***************************************************************************
2 qgsmeshlayerprofilegenerator.h
3 ---------------
4 begin : March 2022
5 copyright : (C) 2022 by Nyall Dawson
6 email : nyall dot dawson 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#ifndef QGSMESHLAYERPROFILEGENERATOR_H
18#define QGSMESHLAYERPROFILEGENERATOR_H
19
20#include "qgis_core.h"
21#include "qgis_sip.h"
26#include "qgstriangularmesh.h"
27
28#include <memory>
29
31class QgsCurve;
32class QgsMeshLayer;
35
36#define SIP_NO_FILE
37
38
47{
48
49 public:
50
51 QString type() const override;
52 QVector<QgsProfileIdentifyResults> identify( const QgsProfilePoint &point, const QgsProfileIdentifyContext &context ) override;
53
54 private:
55
56 QPointer< QgsMeshLayer > mLayer;
57
59};
60
61
70{
71
72 public:
73
78
80
81 QString sourceId() const override;
82 bool generateProfile( const QgsProfileGenerationContext &context = QgsProfileGenerationContext() ) override;
83 QgsAbstractProfileResults *takeResults() override;
84 QgsFeedback *feedback() const override;
85
86 private:
87
88 double heightAt( double x, double y );
89
90 QString mId;
91 std::unique_ptr<QgsFeedback> mFeedback = nullptr;
92
93 std::unique_ptr< QgsCurve > mProfileCurve;
94
97 QgsCoordinateTransformContext mTransformContext;
98
99 double mOffset = 0;
100 double mScale = 1;
101 QPointer< QgsMeshLayer > mLayer;
102
103 double mStepDistance = std::numeric_limits<double>::quiet_NaN();
104
105 QgsTriangularMesh mTriangularMesh;
106
107 QgsCoordinateTransform mLayerToTargetTransform;
108
109 std::unique_ptr< QgsMeshLayerProfileResults > mResults;
110
112
113
114};
115
116#endif // QGSMESHLAYERPROFILEGENERATOR_H
Abstract base class for storage of elevation profiles.
virtual QString type() const =0
Returns the unique string identifier for the results type.
Abstract base class for objects which generate elevation profiles which represent a continuous surfac...
Abstract base class for storage of elevation profiles which represent a continuous surface (e....
QVector< QgsProfileIdentifyResults > identify(const QgsProfilePoint &point, const QgsProfileIdentifyContext &context) override
Identify results visible at the specified profile point.
Abstract base class for terrain providers.
This class represents a coordinate reference system (CRS).
Contains information about the context in which a coordinate transform is executed.
Class for doing transforms between two map coordinate systems.
Abstract base class for curved geometry type.
Definition: qgscurve.h:36
Base class for feedback objects to be used for cancellation of something running in a worker thread.
Definition: qgsfeedback.h:45
Implementation of QgsAbstractProfileGenerator for mesh layers.
~QgsMeshLayerProfileGenerator() override
Implementation of QgsAbstractProfileResults for mesh layers.
Represents a mesh layer supporting display of data on structured or unstructured meshes.
Definition: qgsmeshlayer.h:100
Encapsulates the context in which an elevation profile is to be generated.
Encapsulates the context of identifying profile results.
Encapsulates a point on a distance-elevation profile.
Encapsulates properties and constraints relating to fetching elevation profiles from different source...
Encapsulates the context of snapping a profile point.
Triangular/Derived Mesh is mesh with vertices in map coordinates.