1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
/************************************************************************
* This file has been generated automatically from *
* *
* src/core/qgsgeometrysimplifier.h *
* *
* Do not edit manually ! Edit header and run scripts/sipify.py again *
************************************************************************/
class QgsAbstractGeometrySimplifier
{
%Docstring(signature="appended")
Abstract base class for simplify geometries using a specific algorithm
%End
%TypeHeaderCode
#include "qgsgeometrysimplifier.h"
%End
public:
virtual ~QgsAbstractGeometrySimplifier();
virtual QgsGeometry simplify( const QgsGeometry &geometry ) const = 0;
%Docstring
Returns a simplified version the specified geometry
%End
virtual QgsAbstractGeometry *simplify( const QgsAbstractGeometry *geometry ) const = 0 /Factory/;
%Docstring
Returns a simplified version the specified ``geometry``.
Will return ``None`` if no simplification is to be performed to the
geometry.
Caller takes ownership of the returned geometry.
.. versionadded:: 3.18
%End
public:
static bool isGeneralizableByDeviceBoundingBox( const QgsRectangle &envelope, float mapToPixelTol = 1.0f );
%Docstring
Returns whether the device-envelope can be replaced by its BBOX when is
applied the specified tolerance
%End
static bool isGeneralizableByDeviceBoundingBox( const QVector<QPointF> &points, float mapToPixelTol = 1.0f );
%Docstring
Returns whether the device-geometry can be replaced by its BBOX when is
applied the specified tolerance
%End
};
class QgsTopologyPreservingSimplifier : QgsAbstractGeometrySimplifier
{
%Docstring(signature="appended")
Implementation of GeometrySimplifier using the Douglas-Peucker algorithm
Simplifies a geometry, ensuring that the result is a valid geometry
having the same dimension and number of components as the input. The
simplification uses a maximum distance difference algorithm similar to
the one used in the Douglas-Peucker algorithm.
%End
%TypeHeaderCode
#include "qgsgeometrysimplifier.h"
%End
public:
QgsTopologyPreservingSimplifier( double tolerance );
%Docstring
Constructor for QgsTopologyPreservingSimplifier. The tolerance parameter
is specified in layer units.
%End
virtual QgsGeometry simplify( const QgsGeometry &geometry ) const;
virtual QgsAbstractGeometry *simplify( const QgsAbstractGeometry *geometry ) const /Factory/;
protected:
};
/************************************************************************
* This file has been generated automatically from *
* *
* src/core/qgsgeometrysimplifier.h *
* *
* Do not edit manually ! Edit header and run scripts/sipify.py again *
************************************************************************/
|
