c# - Converting Screen Coordinates to Complex Coordinates -


can please show me how convert screen coordinates complex? picture shows specific details conversion

providing steps of how relationship between 2 appreciated.

thanks

screen -> complex

conversion:

screenpointx .. x coordinate on screen   screenpointy .. y coordinate on screen   screenwidth  .. width of screen   screenheight .. height of screen   re           .. real component of resulting complex im           .. imaginary component of resulting complex  re = 3 * screenpointx / screenwidth - 2 im = 1 - 2 * screenpointy / screenheight

example c++ implementation:

template<class t> std::complex<t> screentocomplex(     t screenpointx,     t screenpointy,     t screenwidth,     t screenheight) {     t re = 3 * screenpointx / screenwidth - 2;     t im = 1 - 2 * screenpointy / screenheight;     return std::complex<t>(re, im); }

just rearrange other way around.


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