Hello,
I got a problem of using the AffineTransform object.
This is what I did:
I created an AffineTransform object then invoke the
setToScale(double, doble) method for scaling purposes
of drawing an image. It works fine, but I would like to
do something more that scaling only. I like to translate
the origin of drawing the image, and I called the
translate( double, double) method, but it seems that
it's not working well. So I tried to verify the values
of the translation in the paint method using the
getTranslateX( ) and getTranslateY( ), and I found
out that it is not the same values that I set using
the translate( double, double) method.
Could someone explain it to me why?
BTW, here are some snippets to refer:
--start--
public void paint( Graphics g )
{
super.paint( g );
Graphics2D g2 = (Graphics2D) g;
g2.drawImage( image, af, this );
}
public void zoom( int zoomSize )
{
double zoomRatio = zoomSize * 0.1 + 1;
int width = (int) ( image.getWidth( this ) * zoomRatio );
int height = (int) ( image.getHeight( this ) * zoomRatio );
if ( zoomSize >= 0 )
{
Dimension newSize = new Dimension( width, height );
setSize( newSize );
setPreferredSize( newSize );
}
else
{
double x = (double) ( getSize( ).width - width ) / 2;
double y = (double) ( getSize( ).height - height ) / 2;
af.setToTranslation( x, y );
}
af.setToScale( zoomRatio, zoomRatio );
repaint( );
}
public void translate( int zoomSize )
{
double zoomRatio = zoomSize * 0.1 + 1;
int width = (int) ( image.getWidth( this ) * zoomRatio );
int height = (int) ( image.getHeight( this ) * zoomRatio );
if ( zoomSize < 0 )
{
double x = (double) ( getSize( ).width - width ) / 2;
double y = (double) ( getSize( ).height - height ) / 2;
af.translate( x, y );
}
repaint( );
}
--end--
--
Charlemagne L. Rey
Software Design Engineering
NEC Technologies Philippines, Inc.
--do unto others as you would have them do unto you--
=====================================================================
To subscribe/unsubscribe, send mail to [EMAIL PROTECTED]
Java 2D Home Page: http://java.sun.com/products/java-media/2D/
