Class: Bezier2Segment

• Inheritance
• Description
• Class protocol
  • instance creation
• Instance protocol
  • accessing
  • initialization
  • testing

Inheritance:

   Object
   |
   +--Geometric
      |
      +--LineSegment
         |
         +--Bezier2Segment

Package:

stx:libbasic2

Category:

Graphics-Geometry-Objects

Version:

rev: 1.3 date: 2003/08/29 17:32:22

user: cg

file: Bezier2Segment.st directory: libbasic2

module: stx stc-classLibrary: libbasic2

Description:

borrowed from Squeak2.4

This class represents a quadratic bezier segment between two points

Instance variables:
    via             <Point> The additional control point (OFF the curve)

Class protocol:

 from: startPoint via: viaPoint to: endPoint

Instance protocol:

 via

Return the control point

 from: start to: end

Initialize the receiver as straight line

 from: start to: end via: viaPoint

Initialize the receiver

 isBezier2Segment

return true, if the receiver is a quadratic bezier segment