Coords2Angles

Coords2Angles - convert the coords for Start and End Radial-Points into an Eccentric counter clockwise Angle and an Angle-Length

Declaration

Source position: graphmath.pp line 66

procedure Coords2Angles(

X: Integer;

Y: Integer;

Width: Integer;

Height: Integer;

SX: Integer;

SY: Integer;

EX: Integer;

EY: Integer;

var Angle1: Extended;

var Angle2: Extended

);

Description

Method: Coords2Angles

Params:   x,y,width,height,sx,sy,ex,ey, angle1,angle2
  Returns:  Nothing

  Use Coords2Angles to convert the coords for Start and End Radial-Points, such
  as are used in the Windows API Arc Pie and Chord routines, into an Eccentric
  (aka Radial) counter clockwise Angle and an Angle-Length, such as are used in
  X-Windows and GTK. The angles angle1 and angle2 are returned in 1/16th of a
  degree. For example, a full circle equals 5760 (16*360). Zero degrees is at
  the 3 o'clock position.

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