jcckit.renderer
Class Transformation
java.lang.Object
|
+--jcckit.renderer.Transformation
- public class Transformation
- extends java.lang.Object
Transformation between device-independent coordinates
and standard Java coordinates. The aspect-ratio will
be the same. The position in the canvas is determined by a
Rectangle
defining a (virtual)
paper which is placed in the canvas according to an anchor point.
Depending on the aspect ratio of the canvas the paper width or
height occupies the canvas width or height.
- Author:
- Franz-Josef Elmer
Constructor Summary |
Transformation(int width,
int height,
ClippingRectangle paper,
Anchor horizontalAnchor,
Anchor verticalAnchor)
Creates an instance for the specified canvas size, paper size,
and anchor points of the paper. |
Method Summary |
GraphPoint |
transformBack(int x,
int y)
Transforms a point in Java coordinates back into device-independent
coordinates. |
int |
transformHeight(double height)
Transforms the device-independent height into Java height. |
int |
transformWidth(double width)
Transforms the device-independent width into Java width. |
int |
transformX(double x)
Transforms the device-independent x coordinate into Java coordinates. |
int |
transformY(double y)
Transforms the device-independent y coordinate into Java coordinates. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Transformation
public Transformation(int width,
int height,
ClippingRectangle paper,
Anchor horizontalAnchor,
Anchor verticalAnchor)
- Creates an instance for the specified canvas size, paper size,
and anchor points of the paper.
- Parameters:
width
- Width of the canvas.height
- Height of the canvas.paper
- Rectangle defining the paper in device-independent
coordinates.horizontalAnchor
- Horizontal anchor of the paper in the canvas.verticalAnchor
- Vertical anchor of the paper in the canvas.
transformX
public int transformX(double x)
- Transforms the device-independent x coordinate into Java coordinates.
transformY
public int transformY(double y)
- Transforms the device-independent y coordinate into Java coordinates.
transformWidth
public int transformWidth(double width)
- Transforms the device-independent width into Java width.
transformHeight
public int transformHeight(double height)
- Transforms the device-independent height into Java height.
transformBack
public GraphPoint transformBack(int x,
int y)
- Transforms a point in Java coordinates back into device-independent
coordinates.