I am a self-taught QGIS user and am trying my hand at the geometry generator. I have been tasked with creating a map that has gazebos as points. There are so many easier ways to get a polygon like the one I am going for (.svg marker), but I'm trying to branch out. I got to this point by following Klas Karlson awesome geometry generator video. Here is my go at making an octagon:
make_polygon(
make_line(
make_point($geometry, 0.414, 1.000),
make_point($geometry, 1.000, 0.414),
make_point($geometry, 1.000, -0.414),
make_point($geometry, 0.414, -1.000),
make_point($geometry, -0.414, -1.000),
make_point($geometry, -1.000, -0.414),
make_point($geometry, -1.000, 0.414),
make_point($geometry, -0.414, 1.000)
))
This is what I got so far:
Best Answer
You can do this much easier with the function
make_regular_polygon()
like this:5
in line 3 is the size of the radius,radians(360/16)
is the rotation for a horizontal upper line, you can change the angle inside the brackets to get other rotations - e.g. 0 for the rotation like in the screenshot: