Hi, I've been using translate and rotate a lot recently and I was wonder if there was a way to get an unTranslated x,y location from a translated point. There are ways to figure this out by running some of the translation math but it gets sticky and confusing at best.
for example:
Quote:ellipse(0,0,50,50);
translate(300,0);
rotate(.25*PI);
translate(300,0);
ellipse(0,0,50,50);
//Where is the second ellipse according to the grid of the first?
A simple move such as this would be easily possible assuming i broke down the rotated translation into X and Y vectors, but after 10 or 20 steps like this that sort of thing becomes a headache.
In short, is there a function I can run that will tell me the relative position of my translated 0,0 compared to the starting 0,0? That is to say if I held my mouse over the second ellipse, what would mouseX and mouseY be?
Thanks!
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Way to infer position on a translate(ed) space? (Read 168 times)