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test_qgslayoutmapoverview.py
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test_qgslayoutmapoverview.py
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"""QGIS Unit tests for QgsLayoutItemMap.
.. note:: 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.
"""
__author__ = '(C) 2017 Nyall Dawson'
__date__ = '20/10/2017'
__copyright__ = 'Copyright 2017, The QGIS Project'
import os
from typing import Optional
from qgis.PyQt.QtCore import QDir, QFileInfo, QRectF
from qgis.PyQt.QtGui import QPainter
from qgis.core import (
QgsCoordinateReferenceSystem,
QgsFeature,
QgsFillSymbol,
QgsGeometry,
QgsLayout,
QgsLayoutItemMap,
QgsLayoutItemMapItem,
QgsLayoutItemMapOverview,
QgsMultiBandColorRenderer,
QgsPointXY,
QgsProject,
QgsProperty,
QgsRasterLayer,
QgsRectangle,
QgsSingleSymbolRenderer,
QgsSymbolLayer,
QgsVectorLayer
)
import unittest
from qgis.testing import start_app, QgisTestCase
from test_qgslayoutitem import LayoutItemTestCase
from utilities import unitTestDataPath
start_app()
TEST_DATA_DIR = unitTestDataPath()
class TestQgsLayoutMap(QgisTestCase, LayoutItemTestCase):
@classmethod
def setUpClass(cls):
super(TestQgsLayoutMap, cls).setUpClass()
cls.item_class = QgsLayoutItemMap
@classmethod
def control_path_prefix(cls):
return "composer_mapoverview"
def __init__(self, methodName):
"""Run once on class initialization."""
QgisTestCase.__init__(self, methodName)
myPath = os.path.join(TEST_DATA_DIR, 'rgb256x256.png')
rasterFileInfo = QFileInfo(myPath)
self.raster_layer = QgsRasterLayer(rasterFileInfo.filePath(),
rasterFileInfo.completeBaseName())
rasterRenderer = QgsMultiBandColorRenderer(
self.raster_layer.dataProvider(), 1, 2, 3)
self.raster_layer.setRenderer(rasterRenderer)
myPath = os.path.join(TEST_DATA_DIR, 'points.shp')
vector_file_info = QFileInfo(myPath)
self.vector_layer = QgsVectorLayer(vector_file_info.filePath(),
vector_file_info.completeBaseName(), 'ogr')
assert self.vector_layer.isValid()
QgsProject.instance().addMapLayers([self.raster_layer, self.vector_layer])
# create layout with layout map
self.layout = QgsLayout(QgsProject.instance())
self.layout.initializeDefaults()
self.map = QgsLayoutItemMap(self.layout)
self.map.attemptSetSceneRect(QRectF(20, 20, 200, 100))
self.map.setFrameEnabled(True)
self.map.setLayers([self.raster_layer])
self.layout.addLayoutItem(self.map)
def testOverviewMap(self):
overviewMap = QgsLayoutItemMap(self.layout)
overviewMap.attemptSetSceneRect(QRectF(20, 130, 70, 70))
overviewMap.setFrameEnabled(True)
overviewMap.setLayers([self.raster_layer])
self.assertFalse(overviewMap.overviews().hasEnabledItems())
self.layout.addLayoutItem(overviewMap)
# zoom in
myRectangle = QgsRectangle(96, -152, 160, -120)
self.map.setExtent(myRectangle)
myRectangle2 = QgsRectangle(0, -256, 256, 0)
overviewMap.setExtent(myRectangle2)
overviewMap.overview().setLinkedMap(self.map)
self.assertTrue(overviewMap.overviews().hasEnabledItems())
result = self.render_layout_check("composermap_overview",
self.layout,
color_tolerance=6)
self.layout.removeLayoutItem(overviewMap)
self.assertTrue(result)
def testOverviewMapBlend(self):
overviewMap = QgsLayoutItemMap(self.layout)
overviewMap.attemptSetSceneRect(QRectF(20, 130, 70, 70))
overviewMap.setFrameEnabled(True)
overviewMap.setLayers([self.raster_layer])
self.layout.addLayoutItem(overviewMap)
# zoom in
myRectangle = QgsRectangle(96, -152, 160, -120)
self.map.setExtent(myRectangle)
myRectangle2 = QgsRectangle(0, -256, 256, 0)
overviewMap.setExtent(myRectangle2)
overviewMap.overview().setLinkedMap(self.map)
overviewMap.overview().setBlendMode(QPainter.CompositionMode.CompositionMode_Multiply)
result = self.render_layout_check("composermap_overview_blending",
self.layout)
self.layout.removeLayoutItem(overviewMap)
self.assertTrue(result)
def testOverviewMapInvert(self):
overviewMap = QgsLayoutItemMap(self.layout)
overviewMap.attemptSetSceneRect(QRectF(20, 130, 70, 70))
overviewMap.setFrameEnabled(True)
overviewMap.setLayers([self.raster_layer])
self.layout.addLayoutItem(overviewMap)
# zoom in
myRectangle = QgsRectangle(96, -152, 160, -120)
self.map.setExtent(myRectangle)
myRectangle2 = QgsRectangle(0, -256, 256, 0)
overviewMap.setExtent(myRectangle2)
overviewMap.overview().setLinkedMap(self.map)
overviewMap.overview().setInverted(True)
result = self.render_layout_check("composermap_overview_invert",
self.layout)
self.layout.removeLayoutItem(overviewMap)
self.assertTrue(result)
def testOverviewMapCenter(self):
overviewMap = QgsLayoutItemMap(self.layout)
overviewMap.attemptSetSceneRect(QRectF(20, 130, 70, 70))
overviewMap.setFrameEnabled(True)
overviewMap.setLayers([self.raster_layer])
self.layout.addLayoutItem(overviewMap)
# zoom in
myRectangle = QgsRectangle(192, -288, 320, -224)
self.map.setExtent(myRectangle)
myRectangle2 = QgsRectangle(0, -256, 256, 0)
overviewMap.setExtent(myRectangle2)
overviewMap.overview().setLinkedMap(self.map)
overviewMap.overview().setInverted(False)
overviewMap.overview().setCentered(True)
result = self.render_layout_check("composermap_overview_center",
self.layout)
self.layout.removeLayoutItem(overviewMap)
self.assertTrue(result)
def testAsMapLayer(self):
l = QgsLayout(QgsProject.instance())
l.initializeDefaults()
map = QgsLayoutItemMap(l)
map.attemptSetSceneRect(QRectF(20, 20, 200, 100))
l.addLayoutItem(map)
overviewMap = QgsLayoutItemMap(l)
overviewMap.attemptSetSceneRect(QRectF(20, 130, 70, 70))
l.addLayoutItem(overviewMap)
# zoom in
myRectangle = QgsRectangle(96, -152, 160, -120)
map.setExtent(myRectangle)
myRectangle2 = QgsRectangle(0, -256, 256, 0)
overviewMap.setExtent(myRectangle2)
overviewMap.overview().setLinkedMap(map)
layer = overviewMap.overview().asMapLayer()
self.assertIsNotNone(layer)
self.assertTrue(layer.isValid())
geoms = [f.geometry() for f in layer.getFeatures()]
for g in geoms:
g.normalize()
self.assertEqual([g.asWkt() for g in geoms], ['Polygon ((96 -152, 96 -120, 160 -120, 160 -152, 96 -152))'])
# check that layer has correct renderer
fill_symbol = QgsFillSymbol.createSimple({'color': '#00ff00', 'outline_color': '#ff0000', 'outline_width': '10'})
overviewMap.overview().setFrameSymbol(fill_symbol)
layer = overviewMap.overview().asMapLayer()
self.assertIsInstance(layer.renderer(), QgsSingleSymbolRenderer)
self.assertEqual(layer.renderer().symbol().symbolLayer(0).properties()['color'], '0,255,0,255,rgb:0,1,0,1')
self.assertEqual(layer.renderer().symbol().symbolLayer(0).properties()['outline_color'], '255,0,0,255,rgb:1,0,0,1')
# test layer blend mode
self.assertEqual(layer.blendMode(), QPainter.CompositionMode.CompositionMode_SourceOver)
overviewMap.overview().setBlendMode(QPainter.CompositionMode.CompositionMode_Clear)
layer = overviewMap.overview().asMapLayer()
self.assertEqual(layer.blendMode(), QPainter.CompositionMode.CompositionMode_Clear)
# should have no effect
overviewMap.setMapRotation(45)
layer = overviewMap.overview().asMapLayer()
geoms = [f.geometry() for f in layer.getFeatures()]
for g in geoms:
g.normalize()
self.assertEqual([g.asWkt() for g in geoms], ['Polygon ((96 -152, 96 -120, 160 -120, 160 -152, 96 -152))'])
map.setMapRotation(15)
layer = overviewMap.overview().asMapLayer()
geoms = [f.geometry() for f in layer.getFeatures()]
for g in geoms:
g.normalize()
self.assertEqual([g.asWkt(0) for g in geoms], ['Polygon ((93 -129, 155 -112, 163 -143, 101 -160, 93 -129))'])
# with reprojection
map.setCrs(QgsCoordinateReferenceSystem('EPSG:3875'))
layer = overviewMap.overview().asMapLayer()
geoms = [f.geometry() for f in layer.getFeatures()]
for g in geoms:
g.normalize()
self.assertEqual([g.asWkt(0) for g in geoms], ['Polygon ((93 -129, 96 -128, 99 -127, 102 -126, 105 -126, 108 -125, 111 -124, 114 -123, 116 -123, 119 -122, 122 -121, 125 -120, 128 -119, 131 -119, 134 -118, 137 -117, 140 -116, 143 -115, 146 -115, 149 -114, 152 -113, 155 -112, 155 -114, 156 -115, 156 -117, 156 -118, 157 -120, 157 -121, 158 -123, 158 -124, 158 -126, 159 -127, 159 -128, 160 -130, 160 -131, 160 -133, 161 -134, 161 -136, 161 -137, 162 -139, 162 -140, 163 -142, 163 -143, 160 -144, 157 -145, 154 -146, 151 -146, 148 -147, 145 -148, 142 -149, 140 -149, 137 -150, 134 -151, 131 -152, 128 -153, 125 -153, 122 -154, 119 -155, 116 -156, 113 -157, 110 -157, 107 -158, 104 -159, 101 -160, 101 -158, 100 -157, 100 -155, 100 -154, 99 -152, 99 -151, 98 -149, 98 -148, 98 -146, 97 -145, 97 -144, 96 -142, 96 -141, 96 -139, 95 -138, 95 -136, 95 -135, 94 -133, 94 -132, 93 -130, 93 -129))'])
map.setCrs(overviewMap.crs())
# with invert
overviewMap.overview().setInverted(True)
layer = overviewMap.overview().asMapLayer()
geoms = [f.geometry() for f in layer.getFeatures()]
for g in geoms:
g.normalize()
self.assertEqual([g.asWkt(0) for g in geoms], ['Polygon ((-53 -128, 128 53, 309 -128, 128 -309, -53 -128),(93 -129, 101 -160, 163 -143, 155 -112, 93 -129))'])
def test_StackingPosition(self):
l = QgsLayout(QgsProject.instance())
l.initializeDefaults()
overviewMap = QgsLayoutItemMap(l)
overviewMap.attemptSetSceneRect(QRectF(20, 130, 70, 70))
l.addLayoutItem(overviewMap)
overviewMap.overview().setStackingPosition(QgsLayoutItemMapItem.StackingPosition.StackBelowMap)
self.assertEqual(overviewMap.overview().stackingPosition(), QgsLayoutItemMapItem.StackingPosition.StackBelowMap)
overviewMap.overview().setStackingPosition(QgsLayoutItemMapItem.StackingPosition.StackBelowMapLayer)
self.assertEqual(overviewMap.overview().stackingPosition(), QgsLayoutItemMapItem.StackingPosition.StackBelowMapLayer)
overviewMap.overview().setStackingLayer(self.raster_layer)
self.assertEqual(overviewMap.overview().stackingLayer(), self.raster_layer)
overviewMap.overview().setStackingLayer(self.vector_layer)
self.assertEqual(overviewMap.overview().stackingLayer(), self.vector_layer)
overviewMap.overview().setStackingLayer(None)
self.assertIsNone(overviewMap.overview().stackingLayer())
def test_ModifyMapLayerList(self):
l = QgsLayout(QgsProject.instance())
l.initializeDefaults()
overviewMap = QgsLayoutItemMap(l)
overviewMap.attemptSetSceneRect(QRectF(20, 130, 70, 70))
l.addLayoutItem(overviewMap)
map = QgsLayoutItemMap(l)
map.attemptSetSceneRect(QRectF(20, 20, 200, 100))
l.addLayoutItem(map)
self.assertFalse(overviewMap.overviews().modifyMapLayerList([]))
self.assertEqual(overviewMap.overviews().modifyMapLayerList([self.raster_layer, self.vector_layer]), [self.raster_layer, self.vector_layer])
overviewMap.overview().setLinkedMap(map)
overviewMap.overview().setStackingPosition(QgsLayoutItemMapItem.StackingPosition.StackBelowMap)
self.assertEqual(overviewMap.overviews().modifyMapLayerList([self.raster_layer, self.vector_layer]),
[self.raster_layer, self.vector_layer, overviewMap.overview().asMapLayer()])
overviewMap.overview().setStackingPosition(QgsLayoutItemMapItem.StackingPosition.StackBelowMapLayer)
self.assertEqual(overviewMap.overviews().modifyMapLayerList([self.raster_layer, self.vector_layer]),
[self.raster_layer, self.vector_layer])
overviewMap.overview().setStackingLayer(self.raster_layer)
self.assertEqual(overviewMap.overviews().modifyMapLayerList([self.raster_layer, self.vector_layer]),
[self.raster_layer, overviewMap.overview().asMapLayer(), self.vector_layer])
overviewMap.overview().setStackingLayer(self.vector_layer)
self.assertEqual(overviewMap.overviews().modifyMapLayerList([self.raster_layer, self.vector_layer]),
[self.raster_layer, self.vector_layer, overviewMap.overview().asMapLayer()])
overviewMap.overview().setStackingPosition(QgsLayoutItemMapItem.StackingPosition.StackAboveMapLayer)
overviewMap.overview().setStackingLayer(None)
self.assertEqual(overviewMap.overviews().modifyMapLayerList([self.raster_layer, self.vector_layer]),
[self.raster_layer, self.vector_layer])
overviewMap.overview().setStackingLayer(self.raster_layer)
self.assertEqual(overviewMap.overviews().modifyMapLayerList([self.raster_layer, self.vector_layer]),
[overviewMap.overview().asMapLayer(), self.raster_layer, self.vector_layer])
overviewMap.overview().setStackingLayer(self.vector_layer)
self.assertEqual(overviewMap.overviews().modifyMapLayerList([self.raster_layer, self.vector_layer]),
[self.raster_layer, overviewMap.overview().asMapLayer(), self.vector_layer])
overviewMap.overview().setStackingPosition(QgsLayoutItemMapItem.StackingPosition.StackBelowMapLabels)
self.assertEqual(overviewMap.overviews().modifyMapLayerList([self.raster_layer, self.vector_layer]),
[overviewMap.overview().asMapLayer(), self.raster_layer, self.vector_layer])
overviewMap.overview().setStackingPosition(QgsLayoutItemMapItem.StackingPosition.StackAboveMapLabels)
self.assertEqual(overviewMap.overviews().modifyMapLayerList([self.raster_layer, self.vector_layer]),
[self.raster_layer, self.vector_layer])
# two overviews
overviewMap.overview().setStackingPosition(QgsLayoutItemMapItem.StackingPosition.StackBelowMap)
overviewMap.overviews().addOverview(QgsLayoutItemMapOverview('x', overviewMap))
overviewMap.overviews().overview(1).setLinkedMap(map)
overviewMap.overviews().overview(1).setStackingPosition(QgsLayoutItemMapItem.StackingPosition.StackBelowMapLabels)
self.assertEqual(overviewMap.overviews().modifyMapLayerList([self.raster_layer, self.vector_layer]),
[overviewMap.overviews().overview(1).asMapLayer(), self.raster_layer, self.vector_layer, overviewMap.overview().asMapLayer()])
def testOverviewStacking(self):
l = QgsLayout(QgsProject.instance())
l.initializeDefaults()
map = QgsLayoutItemMap(l)
map.attemptSetSceneRect(QRectF(20, 20, 200, 100))
map.setFrameEnabled(True)
map.setLayers([self.raster_layer])
l.addLayoutItem(map)
overviewMap = QgsLayoutItemMap(l)
overviewMap.attemptSetSceneRect(QRectF(20, 130, 70, 70))
l.addLayoutItem(overviewMap)
overviewMap.setFrameEnabled(True)
overviewMap.setLayers([self.raster_layer])
# zoom in
myRectangle = QgsRectangle(96, -152, 160, -120)
map.setExtent(myRectangle)
myRectangle2 = QgsRectangle(-20, -276, 276, 20)
overviewMap.setExtent(myRectangle2)
overviewMap.overview().setLinkedMap(map)
overviewMap.overview().setInverted(True)
overviewMap.overview().setStackingPosition(QgsLayoutItemMapItem.StackingPosition.StackBelowMapLayer)
overviewMap.overview().setStackingLayer(self.raster_layer)
self.assertTrue(self.render_layout_check("composermap_overview_belowmap",
l, color_tolerance=6))
overviewMap.overview().setStackingPosition(QgsLayoutItemMapItem.StackingPosition.StackAboveMapLayer)
overviewMap.overview().setStackingLayer(self.raster_layer)
self.assertTrue(self.render_layout_check("composermap_overview_abovemap",
l, color_tolerance=6))
def testOverviewExpressionContextStacking(self):
atlas_layer = QgsVectorLayer("Point?crs=epsg:4326&field=attr:int(1)&field=label:string(20)", "points", "memory")
atlas_feature1 = QgsFeature(atlas_layer.fields())
atlas_feature1.setAttributes([5, 'a'])
atlas_feature1.setGeometry(QgsGeometry.fromPointXY(QgsPointXY(55, 55)))
atlas_layer.dataProvider().addFeature(atlas_feature1)
atlas_feature2 = QgsFeature(atlas_layer.fields())
atlas_feature2.setAttributes([15, 'b'])
atlas_feature2.setGeometry(QgsGeometry.fromPointXY(QgsPointXY(55, 55)))
atlas_layer.dataProvider().addFeature(atlas_feature2)
l = QgsLayout(QgsProject.instance())
l.initializeDefaults()
map = QgsLayoutItemMap(l)
map.attemptSetSceneRect(QRectF(20, 20, 200, 100))
map.setFrameEnabled(True)
map.setLayers([atlas_layer])
l.addLayoutItem(map)
overviewMap = QgsLayoutItemMap(l)
overviewMap.attemptSetSceneRect(QRectF(20, 130, 70, 70))
l.addLayoutItem(overviewMap)
overviewMap.setFrameEnabled(True)
overviewMap.setLayers([atlas_layer])
# zoom in
myRectangle = QgsRectangle(96, -152, 160, -120)
map.setExtent(myRectangle)
myRectangle2 = QgsRectangle(-20, -276, 276, 20)
overviewMap.setExtent(myRectangle2)
overviewMap.overview().setLinkedMap(map)
overviewMap.overview().setStackingPosition(QgsLayoutItemMapItem.StackingPosition.StackAboveMapLayer)
overviewMap.overview().setStackingLayer(atlas_layer)
fill_symbol = QgsFillSymbol.createSimple({'color': '#0000ff', 'outline_style': 'no'})
fill_symbol[0].setDataDefinedProperty(QgsSymbolLayer.Property.PropertyFillColor, QgsProperty.fromExpression('case when label=\'a\' then \'red\' else \'green\' end'))
overviewMap.overview().setFrameSymbol(fill_symbol)
l.reportContext().setLayer(atlas_layer)
l.reportContext().setFeature(atlas_feature1)
self.assertTrue(self.render_layout_check("composermap_overview_atlas_1",
l, color_tolerance=6))
l.reportContext().setFeature(atlas_feature2)
self.assertTrue(self.render_layout_check("composermap_overview_atlas_2",
l, color_tolerance=6))
if __name__ == '__main__':
unittest.main()