Draw point and line in homogeneous coordinates

Hi, im on a work where i need to draw a point and line in homogeneous coordintes, one i have them, i need to determine their homogeneous coordinates, ive tried to find more information to do this but i havent found a good one. hope you know about it thanks a lot

[Star Strider]

Wikipedia has an entry on Homogeneous coordinates that seems reasonably thorough.

It’s one of the results DuckDuckGo pulled up in its search.