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[processing] Make translate algorithm native
And add option to translate z/m values
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nyalldawson committed Nov 24, 2017
1 parent dd223d9 commit ff900c0
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Showing 13 changed files with 326 additions and 80 deletions.
2 changes: 0 additions & 2 deletions python/plugins/processing/algs/qgis/QGISAlgorithmProvider.py
Expand Up @@ -143,7 +143,6 @@
from .TextToFloat import TextToFloat
from .TinInterpolation import TinInterpolation
from .TopoColors import TopoColor
from .Translate import Translate
from .TruncateTable import TruncateTable
from .Union import Union
from .UniqueValues import UniqueValues
Expand Down Expand Up @@ -268,7 +267,6 @@ def getAlgs(self):
TextToFloat(),
TinInterpolation(),
TopoColor(),
Translate(),
TruncateTable(),
Union(),
UniqueValues(),
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76 changes: 0 additions & 76 deletions python/plugins/processing/algs/qgis/Translate.py

This file was deleted.

32 changes: 32 additions & 0 deletions python/plugins/processing/tests/testdata/expected/buffer_polys.gfs
@@ -0,0 +1,32 @@
<GMLFeatureClassList>
<GMLFeatureClass>
<Name>buffer_polys</Name>
<ElementPath>buffer_polys</ElementPath>
<!--POLYGON-->
<GeometryType>3</GeometryType>
<SRSName>EPSG:4326</SRSName>
<DatasetSpecificInfo>
<FeatureCount>6</FeatureCount>
<ExtentXMin>-1.50000</ExtentXMin>
<ExtentXMax>10.50000</ExtentXMax>
<ExtentYMin>-3.50000</ExtentYMin>
<ExtentYMax>6.50000</ExtentYMax>
</DatasetSpecificInfo>
<PropertyDefn>
<Name>name</Name>
<ElementPath>name</ElementPath>
<Type>String</Type>
<Width>5</Width>
</PropertyDefn>
<PropertyDefn>
<Name>intval</Name>
<ElementPath>intval</ElementPath>
<Type>Integer</Type>
</PropertyDefn>
<PropertyDefn>
<Name>floatval</Name>
<ElementPath>floatval</ElementPath>
<Type>Real</Type>
</PropertyDefn>
</GMLFeatureClass>
</GMLFeatureClassList>
@@ -0,0 +1,16 @@
<GMLFeatureClassList>
<GMLFeatureClass>
<Name>gridify_lines</Name>
<ElementPath>gridify_lines</ElementPath>
<!--LINESTRING-->
<GeometryType>2</GeometryType>
<SRSName>EPSG:4326</SRSName>
<DatasetSpecificInfo>
<FeatureCount>7</FeatureCount>
<ExtentXMin>-2.00000</ExtentXMin>
<ExtentXMax>12.00000</ExtentXMax>
<ExtentYMin>-4.00000</ExtentYMin>
<ExtentYMax>6.00000</ExtentYMax>
</DatasetSpecificInfo>
</GMLFeatureClass>
</GMLFeatureClassList>
@@ -0,0 +1,32 @@
<GMLFeatureClassList>
<GMLFeatureClass>
<Name>gridify_polys</Name>
<ElementPath>gridify_polys</ElementPath>
<!--POLYGON-->
<GeometryType>3</GeometryType>
<SRSName>EPSG:4326</SRSName>
<DatasetSpecificInfo>
<FeatureCount>6</FeatureCount>
<ExtentXMin>-2.00000</ExtentXMin>
<ExtentXMax>10.00000</ExtentXMax>
<ExtentYMin>-4.00000</ExtentYMin>
<ExtentYMax>6.00000</ExtentYMax>
</DatasetSpecificInfo>
<PropertyDefn>
<Name>name</Name>
<ElementPath>name</ElementPath>
<Type>String</Type>
<Width>5</Width>
</PropertyDefn>
<PropertyDefn>
<Name>intval</Name>
<ElementPath>intval</ElementPath>
<Type>Integer</Type>
</PropertyDefn>
<PropertyDefn>
<Name>floatval</Name>
<ElementPath>floatval</ElementPath>
<Type>Real</Type>
</PropertyDefn>
</GMLFeatureClass>
</GMLFeatureClassList>
16 changes: 16 additions & 0 deletions python/plugins/processing/tests/testdata/expected/lines_bounds.gfs
@@ -0,0 +1,16 @@
<GMLFeatureClassList>
<GMLFeatureClass>
<Name>lines_bounds</Name>
<ElementPath>lines_bounds</ElementPath>
<!--POLYGON-->
<GeometryType>3</GeometryType>
<SRSName>EPSG:4326</SRSName>
<DatasetSpecificInfo>
<FeatureCount>7</FeatureCount>
<ExtentXMin>-1.00000</ExtentXMin>
<ExtentXMax>11.00000</ExtentXMax>
<ExtentYMin>-3.00000</ExtentYMin>
<ExtentYMax>5.00000</ExtentYMax>
</DatasetSpecificInfo>
</GMLFeatureClass>
</GMLFeatureClassList>
@@ -0,0 +1,16 @@
<GMLFeatureClassList>
<GMLFeatureClass>
<Name>multiline_offset</Name>
<ElementPath>multiline_offset</ElementPath>
<!--MULTILINESTRING-->
<GeometryType>5</GeometryType>
<SRSName>EPSG:4326</SRSName>
<DatasetSpecificInfo>
<FeatureCount>4</FeatureCount>
<ExtentXMin>-1.00000</ExtentXMin>
<ExtentXMax>6.02404</ExtentXMax>
<ExtentYMin>0.00000</ExtentYMin>
<ExtentYMax>5.11935</ExtentYMax>
</DatasetSpecificInfo>
</GMLFeatureClass>
</GMLFeatureClassList>
@@ -0,0 +1,31 @@
<GMLFeatureClassList>
<GMLFeatureClass>
<Name>variable_buffer_points</Name>
<ElementPath>variable_buffer_points</ElementPath>
<!--POLYGON-->
<GeometryType>3</GeometryType>
<SRSName>EPSG:3857</SRSName>
<DatasetSpecificInfo>
<FeatureCount>9</FeatureCount>
<ExtentXMin>-50000.00000</ExtentXMin>
<ExtentXMax>990555.92635</ExtentXMax>
<ExtentYMin>-607305.25727</ExtentYMin>
<ExtentYMax>384111.17140</ExtentYMax>
</DatasetSpecificInfo>
<PropertyDefn>
<Name>id</Name>
<ElementPath>id</ElementPath>
<Type>Integer</Type>
</PropertyDefn>
<PropertyDefn>
<Name>id2</Name>
<ElementPath>id2</ElementPath>
<Type>Integer</Type>
</PropertyDefn>
<PropertyDefn>
<Name>buffer</Name>
<ElementPath>buffer</ElementPath>
<Type>Integer</Type>
</PropertyDefn>
</GMLFeatureClass>
</GMLFeatureClassList>
Expand Up @@ -1087,7 +1087,7 @@ tests:
geometry:
precision: 7

- algorithm: qgis:translategeometry
- algorithm: native:translategeometry
name: Lines translated
params:
DELTA_X: 0.1
Expand Down
1 change: 1 addition & 0 deletions src/analysis/CMakeLists.txt
Expand Up @@ -59,6 +59,7 @@ SET(QGIS_ANALYSIS_SRCS
processing/qgsalgorithmsubdivide.cpp
processing/qgsalgorithmtransect.cpp
processing/qgsalgorithmtransform.cpp
processing/qgsalgorithmtranslate.cpp

processing/qgsnativealgorithms.cpp

Expand Down
114 changes: 114 additions & 0 deletions src/analysis/processing/qgsalgorithmtranslate.cpp
@@ -0,0 +1,114 @@
/***************************************************************************
qgsalgorithmtranslate.cpp
---------------------
begin : November 2017
copyright : (C) 2017 by Nyall Dawson
email : nyall dot dawson at gmail dot com
***************************************************************************/

/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/

#include "qgsalgorithmtranslate.h"

///@cond PRIVATE

QString QgsTranslateAlgorithm::name() const
{
return QStringLiteral( "translategeometry" );
}

QString QgsTranslateAlgorithm::displayName() const
{
return QObject::tr( "Translate geometry" );
}

QStringList QgsTranslateAlgorithm::tags() const
{
return QObject::tr( "move,shift,transform,z,m,values,add" ).split( ',' );
}

QString QgsTranslateAlgorithm::group() const
{
return QObject::tr( "Vector geometry" );
}

QString QgsTranslateAlgorithm::outputName() const
{
return QObject::tr( "Translated" );
}

QString QgsTranslateAlgorithm::shortHelpString() const
{
return QObject::tr( "This algorithm moves the geometries within a layer, by offsetting them with a specified x and y displacement." )
+ QStringLiteral( "\n\n" )
+ QObject::tr( "Z and M values present in the geometry can also be translated." );
}

QgsTranslateAlgorithm *QgsTranslateAlgorithm::createInstance() const
{
return new QgsTranslateAlgorithm();
}

void QgsTranslateAlgorithm::initParameters( const QVariantMap & )
{
addParameter( new QgsProcessingParameterNumber( QStringLiteral( "DELTA_X" ),
QObject::tr( "Offset distance (x-axis)" ), QgsProcessingParameterNumber::Double,
0.0 ) );
addParameter( new QgsProcessingParameterNumber( QStringLiteral( "DELTA_Y" ),
QObject::tr( "Offset distance (y-axis)" ), QgsProcessingParameterNumber::Double,
0.0 ) );
addParameter( new QgsProcessingParameterNumber( QStringLiteral( "DELTA_Z" ),
QObject::tr( "Offset distance (z-axis)" ), QgsProcessingParameterNumber::Double,
0.0 ) );
addParameter( new QgsProcessingParameterNumber( QStringLiteral( "DELTA_M" ),
QObject::tr( "Offset distance (m values)" ), QgsProcessingParameterNumber::Double,
0.0 ) );
}

bool QgsTranslateAlgorithm::prepareAlgorithm( const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback * )
{
mDeltaX = parameterAsDouble( parameters, QStringLiteral( "DELTA_X" ), context );
mDeltaY = parameterAsDouble( parameters, QStringLiteral( "DELTA_Y" ), context );
mDeltaZ = parameterAsDouble( parameters, QStringLiteral( "DELTA_Z" ), context );
mDeltaM = parameterAsDouble( parameters, QStringLiteral( "DELTA_M" ), context );

return true;
}

QgsFeature QgsTranslateAlgorithm::processFeature( const QgsFeature &feature, QgsProcessingFeedback * )
{
QgsFeature f = feature;
if ( f.hasGeometry() )
{
QgsGeometry geometry = f.geometry();
if ( mDeltaZ != 0 && !geometry.constGet()->is3D() )
geometry.get()->addZValue( 0 );
if ( mDeltaM != 0 && !geometry.constGet()->isMeasure() )
geometry.get()->addMValue( 0 );

geometry.translate( mDeltaX, mDeltaY, mDeltaZ, mDeltaM );
f.setGeometry( geometry );
}
return f;
}

QgsWkbTypes::Type QgsTranslateAlgorithm::outputWkbType( QgsWkbTypes::Type inputWkbType ) const
{
QgsWkbTypes::Type wkb = inputWkbType;
if ( mDeltaZ != 0 )
wkb = QgsWkbTypes::addZ( wkb );
if ( mDeltaM != 0 )
wkb = QgsWkbTypes::addM( wkb );
return wkb;
}

///@endcond


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