GEOangleFromStraightToXAxe

Corner between line and x axis.

With this routine the corner is calculated between the line and the x axis. The line is oriented by the starting point to the terminator point. The corner is calculated in the counterclockwise. The x axis corresponds to the corner 0 °.

Parametre

x1 (const stands in) [IN]

y1 (const stands in) [IN]

Starting point of the line.

x2 (const stands in) [IN]

y2 (const stands in) [IN]

Terminator point of the line.

Result

(STAND-IN) [OUT]

As a result the corner is delivered in curve measure. 2Pi corresponds to 360 °.

Declaration

#include "basic.h"

STAND-IN DLLENTRY GEOangleFromStraightToXAxe (

const stands in x1,

const stands in y1,

const stands in x2,

const stands in y2

);