formZ SDK | 5.0 API Reference | System | Math
Description
Given an angle defined by three 2d points (pt1, center, pt2),
calculates the degrees of the angle.
center is the apex of the angle formed by the 2d vectors (center, pt1) and
(center, pt2).
Plugin Prototype
fzrt_error_td fz_math_2d_angle_of_2_lines(
fz_xy_td * | pt1, |
fz_xy_td * | center, |
fz_xy_td * | pt2, |
double * | angle ) |
Parameters
pt1 [Input]
2d point 1
center [Input]
apex of angle
pt2 [Input]
2d point 2
angle [Result]
angle
Returns
Error codes
FZ_MATH_ERR_ZERO_LEN_VEC - lines from pt1 to center or center to pt2 are zero length
Availability
5.0.0.0
Example Files
See Also
Function Set
Defined in