Forums Scripts & Popups Mathematical Problem

Hello,

We know a starting point for a line, the direction the line goes and the length of line. How can we calculate the end point for it ?

Thanks in advance

That can be solved by using the mIRC $cos and $sin functions. But, $cos and $sin require the value to be in radians, not degrees...

You can convert degree values to radians by multiplying the degrees by 0.017453 (which is pi / 180).

Say that %x1 and %y1 are the starting co-ordinates, %angle is the line's angle in degrees, %length is the line length... I'll use %x2 and %y2 as the ending co-ordinates:

set %x2 $calc(%x1 + %length * $sin(%angle * 0.017453))
set %y2 $calc(%y1 + %length * $cos(%angle * 0.017453))

Sorry....I forgot the second $calc, and the negative sign.... replace the above with:


Also, I forgot to say: this assumes that an Angle of 0 degrees is due North.

Both $sin and $cos have .deg properties which allow you to specify the angle in degrees instead of radians.