Determine the angle given by these points.
This function returns the angle between point1 and point2 in the current UCS. The first point determines the line parallel to the x-axis. When point1 is plotted and connected to point2, the resultant angle is returned, in radians.
This function returns the angle, a real number, in radians.
Example
sds_real returnr;
sds_point firstpt,secondpt;
sds_getpoint(NULL,"\nFirst point for angle: ",firstpt);
sds_getpoint(firstpt,"\nSecond point: ",secondpt);
returnr=sds_angle(firstpt,secondpt);
sds_printf("\nThe angle is %f radians",returnr);
Prints:
First point for angle: pick point 1,1
Second point: pick second point 3,3
The angle is 0.7854 radians.
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Programming Overview of SDS™ (Solutions Development System™)