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Fix Issue Map Scaling in QGIS 3.34+ #21

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Fix Issue Map Scaling in QGIS 3.34+ #21

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18 changes: 7 additions & 11 deletions swipemap.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,14 +17,9 @@
* (at your option) any later version. *
* *
***************************************************************************/
"""

__author__ = 'Luiz Motta'
__date__ = '2015-10-14'
__copyright__ = '(C) 2018, Luiz Motta'
__revision__ = '$Format:%H$'


The following changes are NOT MY WORK, they are a suggestion from @LreeLenn in ISSUE #19
"""
from qgis.PyQt.QtCore import QRect, QLine, Qt
from qgis.PyQt.QtGui import QColor, QImage

Expand Down Expand Up @@ -55,8 +50,8 @@ def setIsVertical(self, isVertical):
self.isVertical = isVertical

def setLength(self, x, y):
y = int(self.boundingRect().height() - y)
self.length = int(x) if self.isVertical else int(y)
y = self.boundingRect().height() - y
self.length = x if self.isVertical else y
self.update()

def paint(self, painter, *args): # NEED *args for WINDOWS!
Expand All @@ -67,7 +62,6 @@ def paint(self, painter, *args): # NEED *args for WINDOWS!
h = int(self.boundingRect().height() - 2)
w = int(self.length)
line = QLine( w-1,0,w-1,h-1 )

else:
h = int(self.boundingRect().height() - self.length)
w = int(self.boundingRect().width() - 2)
Expand All @@ -94,9 +88,11 @@ def finished():
settings = QgsMapSettings( self.canvas.mapSettings() )
settings.setLayers( self.layers )
settings.setBackgroundColor( QColor( Qt.transparent ) )

settings.setDevicePixelRatio( 1 )

self.setRect( self.canvas.extent() )
job = QgsMapRendererParallelJob( settings )
job.start()
job.finished.connect( finished)
job.waitForFinished()
job.waitForFinished()