Im using pygmt and I was able to plot this great 3d perspective of my studies area, but I want to know how can I plot a 3d scatter of points where I collected information over this first plot. I have the Long, Lat and Altitude of those points, that I have to use as x,y,z, and I want them to have a single color, I just want to visualize them over the 3d perspective. How can I make that?