I have generated isochrones for London based on my parameters.
However, the isochrones by definition are overlapping polygons.
I would like to show the different polygons of the isochrones using different colors.
I have tried using gradient symbology, but the desired effect is not there since the overlapping polygons are making the different colors interact with each other.
I can separate the polygons into different files and then subtract each polygon from the others so that they don't overlap.
However, since I am relatively new to QGIS, I am wondering whether there is an alternate simpler way to achieve this visual effect?
I am using QGIS 3.4.1