Trying my hand at building a methodology on QGIS as opposed to ESRI, and I'm having some issues with simple digitizing of irregular polygons. The edit sketch graphic that appears when adding a new polygon feature is only transparent in the area where no coverage exists of previously added vertices. The problem arises when trying to digitize a polygon that has internal angles. It gets to a point in the digitizing that you can no longer see your base map to digitize from. I have looked at QGIS digitizing options and how found nothing to adjust the transparency of the edit sketch polygon. so I might be able to see the underlying map as I digitize. Screenshots below to illustrate my point.
Is there a way to combat this, other than to complete the polygon and then go in and modify individual nodes to position correctly?
[SOLVED] – By Jake below. I missed the simple ability to modify the Alpha channel of the rubberband setting.
Best Answer
You can increase the transparency in "Settings / Options" "Digitizing" by changing the "Line Color" in the "Rubberband" section: Click on the coloured rectangle, and set the Alpha channel to something lower (100, say).