Batch saving Multiple Layers on QGIS?

Question

I have 24 layers I want to save on QGIS which all happen to be Tiff files (rasters). I am wondering how to run code to complete this task.

myDir = 'C:\temp'
layers = layers = iface.mapCanvas().layers()
pipe = QgsRasterPipe()
for layer in layers:
 extent = layer.extent()
 width, height = layer.width(), layer.height()
 renderer = layer.renderer()
 provider=layer.dataProvider()
 crs = layer.crs().toWkt() 
 pipe.set(provider.clone())
 pipe.set(renderer.clone())
 file_writer = QgsRasterFileWriter("%s\\%s.tif" %(myDir, layer.name() ))
 file_writer.writeRaster(pipe,
 width,
 height,
 extent,
 layer.crs())

This is the code I have currently to try and run.

• Joseph: And what happens when you run it? :)
• LaughU: @Joseph an error could be file_writer = QgsRasterFileWriter(myDir + layer.name() + ".tif")with a missing "\" I would use QgsRasterFileWriter("%s\\%s.tif" %(myDir, layer.name() )) instead
• Joseph: @Jhunt9 - Could you add print "%s\\%s.tif" %(myDir, layer.name() ) inside your loop to see exactly what the paths look like?
• AndreasK: Is it possible that an escape sequence is ruining your path? Try: myDir = r'C:\temp' --> \t is an escape sequence
• AndreasK: Yes! The escape charater got you! --> python-reference.readthedocs.io/en/latest/docs/str/escapes.html

Answer 1

myDir = r'C:\temp'
layers = layers = iface.mapCanvas().layers()
pipe = QgsRasterPipe()
for layer in layers:
 extent = layer.extent()
 width, height = layer.width(), layer.height()
 renderer = layer.renderer()
 provider=layer.dataProvider()
 crs = layer.crs().toWkt() 
 pipe.set(provider.clone())
 pipe.set(renderer.clone())
 file_writer = QgsRasterFileWriter("%s\\%s.tif" %(myDir, layer.name() ))
 file_writer.writeRaster(pipe,
 width,
 height,
 extent,
 layer.crs())
 print "%s\\%s.tif" %(myDir, layer.name() )

This is the Code that worked! Thank you @LaughU, @AndreasK, & @Joseph