QGIS API Documentation
3.0.2-Girona (307d082)
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The QgsOgcUtils class provides various utility functions for conversion between OGC (Open Geospatial Consortium) standards and QGIS internal representations. More...
#include <qgsogcutils.h>
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class | LayerProperties |
Layer properties. More... | |
Public Types | |
enum | FilterVersion { FILTER_OGC_1_0, FILTER_OGC_1_1, FILTER_FES_2_0 } |
OGC filter version. More... | |
enum | GMLVersion { GML_2_1_2, GML_3_1_0, GML_3_2_1 } |
GML version. More... | |
Static Public Member Functions | |
static QColor | colorFromOgcFill (const QDomElement &fillElement) |
Parse XML with OGC fill into QColor. More... | |
static QgsExpression * | expressionFromOgcFilter (const QDomElement &element) |
Parse XML with OGC filter into QGIS expression. More... | |
static QDomElement | expressionToOgcExpression (const QgsExpression &exp, QDomDocument &doc, QString *errorMessage=nullptr) |
Creates an OGC expression XML element. More... | |
static QDomElement | expressionToOgcExpression (const QgsExpression &exp, QDomDocument &doc, QgsOgcUtils::GMLVersion gmlVersion, FilterVersion filterVersion, const QString &geometryName, const QString &srsName, bool honourAxisOrientation, bool invertAxisOrientation, QString *errorMessage=nullptr) |
Creates an OGC expression XML element. More... | |
static QDomElement | expressionToOgcFilter (const QgsExpression &exp, QDomDocument &doc, QString *errorMessage=nullptr) |
Creates OGC filter XML element. More... | |
static QDomElement | expressionToOgcFilter (const QgsExpression &exp, QDomDocument &doc, QgsOgcUtils::GMLVersion gmlVersion, FilterVersion filterVersion, const QString &geometryName, const QString &srsName, bool honourAxisOrientation, bool invertAxisOrientation, QString *errorMessage=nullptr) |
Creates OGC filter XML element. More... | |
static QgsGeometry | geometryFromGML (const QString &xmlString) |
Static method that creates geometry from GML. More... | |
static QgsGeometry | geometryFromGML (const QDomNode &geometryNode) |
Static method that creates geometry from GML. More... | |
static QDomElement | geometryToGML (const QgsGeometry &geometry, QDomDocument &doc, QgsOgcUtils::GMLVersion gmlVersion, const QString &srsName, bool invertAxisOrientation, const QString &gmlIdBase, int precision=17) |
Exports the geometry to GML. More... | |
static QDomElement | geometryToGML (const QgsGeometry &geometry, QDomDocument &doc, const QString &format, int precision=17) |
Exports the geometry to GML2 or GML3. More... | |
static QDomElement | geometryToGML (const QgsGeometry &geometry, QDomDocument &doc, int precision=17) |
Exports the geometry to GML2. More... | |
static QgsRectangle | rectangleFromGMLBox (const QDomNode &boxNode) |
Read rectangle from GML2 Box. More... | |
static QgsRectangle | rectangleFromGMLEnvelope (const QDomNode &envelopeNode) |
Read rectangle from GML3 Envelope. More... | |
static QDomElement | rectangleToGMLBox (QgsRectangle *box, QDomDocument &doc, int precision=17) |
Exports the rectangle to GML2 Box. More... | |
static QDomElement | rectangleToGMLBox (QgsRectangle *box, QDomDocument &doc, const QString &srsName, bool invertAxisOrientation, int precision=17) |
Exports the rectangle to GML2 Box. More... | |
static QDomElement | rectangleToGMLEnvelope (QgsRectangle *env, QDomDocument &doc, int precision=17) |
Exports the rectangle to GML3 Envelope. More... | |
static QDomElement | rectangleToGMLEnvelope (QgsRectangle *env, QDomDocument &doc, const QString &srsName, bool invertAxisOrientation, int precision=17) |
Exports the rectangle to GML3 Envelope. More... | |
static QDomElement | SQLStatementToOgcFilter (const QgsSQLStatement &statement, QDomDocument &doc, QgsOgcUtils::GMLVersion gmlVersion, FilterVersion filterVersion, const QList< LayerProperties > &layerProperties, bool honourAxisOrientation, bool invertAxisOrientation, const QMap< QString, QString > &mapUnprefixedTypenameToPrefixedTypename, QString *errorMessage=nullptr) |
Creates OGC filter XML element from the WHERE and JOIN clauses of a SQL statement. More... | |
The QgsOgcUtils class provides various utility functions for conversion between OGC (Open Geospatial Consortium) standards and QGIS internal representations.
Currently supported standards:
Definition at line 49 of file qgsogcutils.h.
OGC filter version.
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FILTER_OGC_1_0 | |
FILTER_OGC_1_1 | |
FILTER_FES_2_0 |
Definition at line 156 of file qgsogcutils.h.
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Parse XML with OGC fill into QColor.
Definition at line 1562 of file qgsogcutils.cpp.
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Parse XML with OGC filter into QGIS expression.
Definition at line 1601 of file qgsogcutils.cpp.
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Creates an OGC expression XML element.
Definition at line 2118 of file qgsogcutils.cpp.
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Creates an OGC expression XML element.
Definition at line 2161 of file qgsogcutils.cpp.
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Creates OGC filter XML element.
Supports minimum standard filter according to the OGC filter specs (=,!=,<,>,<=,>=,AND,OR,NOT)
<Filter>QDomElement on success, otherwise null QDomElement
Definition at line 2112 of file qgsogcutils.cpp.
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Creates OGC filter XML element.
Supports minimum standard filter according to the OGC filter specs (=,!=,<,>,<=,>=,AND,OR,NOT)
<Filter>QDomElement on success, otherwise null QDomElement
Definition at line 2124 of file qgsogcutils.cpp.
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Static method that creates geometry from GML.
xmlString | xml representation of the geometry. GML elements are expected to be in default namespace ({<Point>...</Point>) or in "gml" namespace ( <gml:Point>...</gml:Point>) |
Definition at line 134 of file qgsogcutils.cpp.
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Static method that creates geometry from GML.
Definition at line 73 of file qgsogcutils.cpp.
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Exports the geometry to GML.
Definition at line 1130 of file qgsogcutils.cpp.
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Exports the geometry to GML2 or GML3.
Definition at line 1125 of file qgsogcutils.cpp.
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Read rectangle from GML2 Box.
Definition at line 884 of file qgsogcutils.cpp.
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Read rectangle from GML3 Envelope.
Definition at line 965 of file qgsogcutils.cpp.
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Exports the rectangle to GML2 Box.
Definition at line 1044 of file qgsogcutils.cpp.
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Exports the rectangle to GML2 Box.
Definition at line 1049 of file qgsogcutils.cpp.
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Exports the rectangle to GML3 Envelope.
Definition at line 1084 of file qgsogcutils.cpp.
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Exports the rectangle to GML3 Envelope.
Definition at line 1089 of file qgsogcutils.cpp.
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Creates OGC filter XML element from the WHERE and JOIN clauses of a SQL statement.
Supports minimum standard filter according to the OGC filter specs (=,!=,<,>,<=,>=,AND,OR,NOT,LIKE,BETWEEN,IN) Supports layer joins. Supports ST_GeometryFromText(wkt[, srid/srsname]), ST_MakeEnvelope(xmin,ymin,xmax,ymax[, srid/srsname]) ST_GeomFromGML(serialized_gml_string) BBOX() ST_Intersects(), ST_Contains(), ST_Crosses(), ST_Equals(), ST_Disjoint(), ST_Overlaps(), ST_Touches(), ST_Within() ST_DWithin(), ST_Beyond() custom functions
<Filter>QDomElement on success, otherwise null QDomElement
Definition at line 2200 of file qgsogcutils.cpp.