QGIS API Documentation
3.0.2-Girona (307d082)
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3 Miscellaneous utility functions used from 3D code. More...
#include <qgs3dutils.h>
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static AltitudeBinding | altBindingFromString (const QString &str) |
Converts a string to a value from AltitudeBinding enum. More... | |
static QString | altBindingToString (AltitudeBinding altBind) |
Converts a value from AltitudeBinding enum to a string. More... | |
static AltitudeClamping | altClampingFromString (const QString &str) |
Converts a string to a value from AltitudeClamping enum. More... | |
static QString | altClampingToString (AltitudeClamping altClamp) |
Converts a value from AltitudeClamping enum to a string. More... | |
static void | clampAltitudes (QgsLineString *lineString, AltitudeClamping altClamp, AltitudeBinding altBind, const QgsPoint ¢roid, float height, const Qgs3DMapSettings &map) |
Clamps altitude of vertices of a linestring according to the settings. More... | |
static bool | clampAltitudes (QgsPolygon *polygon, AltitudeClamping altClamp, AltitudeBinding altBind, float height, const Qgs3DMapSettings &map) |
Clamps altitude of vertices of a polygon according to the settings. More... | |
static Qt3DRender::QCullFace::CullingMode | cullingModeFromString (const QString &str) |
Converts a string to a value from CullingMode enum. More... | |
static QString | cullingModeToString (Qt3DRender::QCullFace::CullingMode mode) |
Converts a value from CullingMode enum to a string. More... | |
static bool | isCullable (const QgsAABB &bbox, const QMatrix4x4 &viewProjectionMatrix) |
Returns true if bbox is completely outside the current viewing volume. More... | |
static QgsVector3D | mapToWorldCoordinates (const QgsVector3D &mapCoords, const QgsVector3D &origin) |
Converts map coordinates to 3D world coordinates (applies offset and turns (x,y,z) into (x,-z,y)) More... | |
static QString | matrix4x4toString (const QMatrix4x4 &m) |
Converts a 4x4 transform matrix to a string. More... | |
static int | maxZoomLevel (double tile0width, double tileResolution, double maxError) |
Calculates the highest needed zoom level for tiles in quad-tree given width of the base tile (zoom level 0) in map units, resolution of the tile (e.g. More... | |
static QList< QVector3D > | positions (const Qgs3DMapSettings &map, QgsVectorLayer *layer, const QgsFeatureRequest &req, AltitudeClamping altClamp) |
Calculates (x,y,z) positions of a (multi)point in the Point vector layers. More... | |
static QMatrix4x4 | stringToMatrix4x4 (const QString &str) |
Convert a string to a 4x4 transform matrix. More... | |
static QgsVector3D | transformWorldCoordinates (const QgsVector3D &worldPoint1, const QgsVector3D &origin1, const QgsCoordinateReferenceSystem &crs1, const QgsVector3D &origin2, const QgsCoordinateReferenceSystem &crs2, const QgsCoordinateTransformContext &context) |
Transforms a world point from (origin1, crs1) to (origin2, crs2) More... | |
static QgsVector3D | worldToMapCoordinates (const QgsVector3D &worldCoords, const QgsVector3D &origin) |
Converts 3D world coordinates to map coordinates (applies offset and turns (x,y,z) into (x,-z,y)) More... | |
3 Miscellaneous utility functions used from 3D code.
Definition at line 49 of file qgs3dutils.h.
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Converts a string to a value from AltitudeBinding enum.
Definition at line 77 of file qgs3dutils.cpp.
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Converts a value from AltitudeBinding enum to a string.
Definition at line 66 of file qgs3dutils.cpp.
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Converts a string to a value from AltitudeClamping enum.
Definition at line 55 of file qgs3dutils.cpp.
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Converts a value from AltitudeClamping enum to a string.
Definition at line 43 of file qgs3dutils.cpp.
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Clamps altitude of vertices of a linestring according to the settings.
Definition at line 110 of file qgs3dutils.cpp.
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Clamps altitude of vertices of a polygon according to the settings.
Definition at line 140 of file qgs3dutils.cpp.
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Converts a string to a value from CullingMode enum.
Definition at line 97 of file qgs3dutils.cpp.
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Converts a value from CullingMode enum to a string.
Definition at line 85 of file qgs3dutils.cpp.
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Returns true if bbox is completely outside the current viewing volume.
coarse box vs frustum test for culling.
This is used to perform object culling checks.
corners of oriented box are transformed to clip space and there is a test that all points are on the wrong side of the same plane see http://www.lighthouse3d.com/tutorials/view-frustum-culling/geometric-approach-testing-boxes/
should be equivalent to https://searchcode.com/codesearch/view/35195518/ qt3d /src/threed/painting/qglpainter.cpp bool QGLPainter::isCullable(const QBox3D& box) const
Definition at line 264 of file qgs3dutils.cpp.
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Converts map coordinates to 3D world coordinates (applies offset and turns (x,y,z) into (x,-z,y))
Definition at line 282 of file qgs3dutils.cpp.
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Converts a 4x4 transform matrix to a string.
Definition at line 169 of file qgs3dutils.cpp.
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Calculates the highest needed zoom level for tiles in quad-tree given width of the base tile (zoom level 0) in map units, resolution of the tile (e.g.
tile's texture width) and desired maximum error in map units.
Definition at line 30 of file qgs3dutils.cpp.
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Calculates (x,y,z) positions of a (multi)point in the Point vector layers.
Definition at line 188 of file qgs3dutils.cpp.
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Convert a string to a 4x4 transform matrix.
Definition at line 178 of file qgs3dutils.cpp.
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Transforms a world point from (origin1, crs1) to (origin2, crs2)
Definition at line 297 of file qgs3dutils.cpp.
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Converts 3D world coordinates to map coordinates (applies offset and turns (x,y,z) into (x,-z,y))
Definition at line 290 of file qgs3dutils.cpp.