def testForceRHR(self):
# test forcing right hand rule during rendering
s = QgsFillSymbol()
s.deleteSymbolLayer(0)
s.appendSymbolLayer(
QgsSimpleFillSymbolLayer(color=QColor(255, 0, 0),
strokeColor=QColor(0, 255, 0)))
self.assertFalse(s.forceRHR())
s.setForceRHR(True)
self.assertTrue(s.forceRHR())
s.setForceRHR(False)
self.assertFalse(s.forceRHR())
s.setForceRHR(True)
doc = QDomDocument()
context = QgsReadWriteContext()
element = QgsSymbolLayerUtils.saveSymbol('test', s, doc, context)
s2 = QgsSymbolLayerUtils.loadSymbol(element, context)
self.assertTrue(s2.forceRHR())
# rendering test
s3 = QgsFillSymbol()
s3.deleteSymbolLayer(0)
s3.appendSymbolLayer(
QgsSimpleFillSymbolLayer(color=QColor(255, 200, 200),
strokeColor=QColor(0, 255, 0),
strokeWidth=2))
marker_line = QgsMarkerLineSymbolLayer(True)
marker_line.setPlacement(QgsMarkerLineSymbolLayer.FirstVertex)
marker = QgsSimpleMarkerSymbolLayer(
QgsSimpleMarkerSymbolLayer.Triangle, 4)
marker.setColor(QColor(255, 0, 0))
marker.setStrokeStyle(Qt.NoPen)
marker_symbol = QgsMarkerSymbol()
marker_symbol.changeSymbolLayer(0, marker)
marker_line.setSubSymbol(marker_symbol)
s3.appendSymbolLayer(marker_line)
g = QgsGeometry.fromWkt(
'Polygon((0 0, 10 0, 10 10, 0 10, 0 0),(1 1, 1 2, 2 2, 2 1, 1 1),(8 8, 9 8, 9 9, 8 9, 8 8))'
)
rendered_image = self.renderGeometry(s3, g)
assert self.imageCheck('force_rhr_off', 'polygon_forcerhr_off',
rendered_image)
s3.setForceRHR(True)
rendered_image = self.renderGeometry(s3, g)
assert self.imageCheck('force_rhr_on', 'polygon_forcerhr_on',
rendered_image)
def testForceRHR(self):
# test forcing right hand rule during rendering
s = QgsFillSymbol()
s.deleteSymbolLayer(0)
s.appendSymbolLayer(
QgsSimpleFillSymbolLayer(color=QColor(255, 0, 0), strokeColor=QColor(0, 255, 0)))
self.assertFalse(s.forceRHR())
s.setForceRHR(True)
self.assertTrue(s.forceRHR())
s.setForceRHR(False)
self.assertFalse(s.forceRHR())
s.setForceRHR(True)
doc = QDomDocument()
context = QgsReadWriteContext()
element = QgsSymbolLayerUtils.saveSymbol('test', s, doc, context)
s2 = QgsSymbolLayerUtils.loadSymbol(element, context)
self.assertTrue(s2.forceRHR())
# rendering test
s3 = QgsFillSymbol()
s3.deleteSymbolLayer(0)
s3.appendSymbolLayer(
QgsSimpleFillSymbolLayer(color=QColor(255, 200, 200), strokeColor=QColor(0, 255, 0), strokeWidth=2))
marker_line = QgsMarkerLineSymbolLayer(True)
marker_line.setPlacement(QgsMarkerLineSymbolLayer.FirstVertex)
marker = QgsSimpleMarkerSymbolLayer(QgsSimpleMarkerSymbolLayer.Triangle, 4)
marker.setColor(QColor(255, 0, 0))
marker.setStrokeStyle(Qt.NoPen)
marker_symbol = QgsMarkerSymbol()
marker_symbol.changeSymbolLayer(0, marker)
marker_line.setSubSymbol(marker_symbol)
s3.appendSymbolLayer(marker_line)
g = QgsGeometry.fromWkt('Polygon((0 0, 10 0, 10 10, 0 10, 0 0),(1 1, 1 2, 2 2, 2 1, 1 1),(8 8, 9 8, 9 9, 8 9, 8 8))')
rendered_image = self.renderGeometry(s3, g)
assert self.imageCheck('force_rhr_off', 'polygon_forcerhr_off', rendered_image)
s3.setForceRHR(True)
rendered_image = self.renderGeometry(s3, g)
assert self.imageCheck('force_rhr_on', 'polygon_forcerhr_on', rendered_image)
