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Member Since 28 Aug 2013
Offline Last Active Aug 28 2013 08:17 AM

Topics I've Started

Line & Circle Intersetcion

28 August 2013 - 08:14 AM

Hi there,

i am having so much troubles finding C++ code that tell me what is the point of intersection of a circle and a line that grows from its center.


I have a circle with center C and a point A  (is given by the touch of a person on the screen)



The line between C-A intersect with the circle in some place in the circle Z, i want to know how to calculate this Z(x,y) and if it possible a c++ solution will be awesome.

Has someone some useful code i can try?

SO many thanks mates


I have reades this web but when i translate the code i got some strange values , dunno why-




As i said the only important point is the one which is isnide the circle AND is between the center C and the touch point A.