home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Visual Basic Graphics Programming (2nd Edition)
/
Visual Basic Graphics Programming 2nd Edition.iso
/
Src
/
Ch12
/
TrWave.cls
< prev
next >
Wrap
Text File
|
1999-06-17
|
774b
|
30 lines
VERSION 1.0 CLASS
BEGIN
MultiUse = -1 'True
Persistable = 0 'NotPersistable
DataBindingBehavior = 0 'vbNone
DataSourceBehavior = 0 'vbNone
MTSTransactionMode = 0 'NotAnMTSObject
END
Attribute VB_Name = "TransWave"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = True
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
Option Explicit
' A wavy transformation.
Implements Transformation
' Transformation parameters.
Public Amplitude As Single
Public Period As Single
' Transform the point (X, Y).
Private Sub Transformation_Transform(X As Single, Y As Single)
Dim new_x As Single
new_x = X + Amplitude * Sin(Y * 6.28 / Period)
Y = Y + Amplitude * Sin(X * 6.28 / Period)
X = new_x
End Sub