BezierArcPoints

BezierArcPoints - convert an Arc and ArcLength into a Pointer Array of TPoints for use with Polyline or Polygon

Declaration

Source position: graphmath.pp line 61

Description

Method: BezierArcPoints

Params:   X, Y, Width, Height, Angle1, Angle2, Rotation, Points, Count
  Returns:  Nothing

  Use BezierArcPoints to convert an Arc and ArcLength into a Pointer Array
  of TPoints for use with Polyline or Polygon. The Rotation parameter accepts
  a Rotation-Angle for a rotated Ellipse'- for a non-rotated ellipse this
  value would be 0, or 360. The result is an Aproximation based on 1 or more
  Beziers. If the AngleLength is greater than 90 degrees, it calls
  PolyBezierArcPoints, otherwise it Converts the angles into a Bezier by
  calling to Arc2Bezier, and then converts the Bezier into an array of Points
  by calling to Bezier2Polyline. The angles are 1/16th of a degree. For example,
  a full circle equals 5760 (16*360). Positive values of Angle and AngleLength
  mean counter-clockwise while negative values mean clockwise direction. Zero
  degrees is at the 3'o clock position. If Points is not initialized or Count
  is less then 0, it is set to nil and the array starts at 0,
  otherwise it tries to append points to the array starting at Count. Points
  should ALWAYS be Freed when done by calling ReallocMem(Points, 0) or FreeMem.