I'm working on a project to map utility lines on a small university campus. We have paper maps right now, and we're looking to step into the modern era a little bit.
What I currently have set up is Qgis with a good campus basemap, then a line/multilinestring layer with categorized layer styling, based on a "Type" column in the attribute table (Electrical, Fiber, Water, etc).
To take things a step further/more accurate, I'm attempting to use a Garmin etrex 30 handheld hiking GPS to gather tracks saved into a GPX format. I've tested importing these, and I have no problem importing them into QGIS as their own Line/MultiLineString layer. What I would really like though is to import them to my existing layer. This way we could walk campus with the GPS and map a few routes over a few days, import and slowly build our map, as well as easily add to it down the road.
Is it possible to bring GPX tracks into an existing layer, OR is it possible to add them/merge them into an existing multiline layer once they're imported within QGIS?
I'm new to GIS & QGIS - and more than happy to clarify anything!