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Class fi.helsinki.cs.MapDrawer.FourEdgeScaler 

java.lang.Object
   |
   +----fi.helsinki.cs.MapDrawer.LayoutObject
           |
           +----fi.helsinki.cs.MapDrawer.FourEdgeScaler
public class FourEdgeScaler
extends LayoutObject
MapDrawer's default scaler context -- free-shaped four-edge scaler. This is perhaps the easiest scaler to use.

Variable Index

o ep
The vertices of the polygon (there should always be four of them).

Constructor Index

o FourEdgeScaler()
Initialise this scaler to MapDrawer's default full rectangle.
o FourEdgeScaler(FourEdgeScaler)
o FourEdgeScaler(RelPoint, RelPoint, RelPoint, RelPoint)
Initialise this scaler with vertices p1, p2, p3, p4.

Method Index

o equals(FourEdgeScaler)
o getBoundRect()
Get the bounding rectangle of this area.
o scalePoint(RelPoint)
Scales a point so that it is within the area between the four vertices.
o setProperty(MapDProp)
Properties supported by this LayoutObject: left, right, top, bottom, pt[nr], rotation
o toPolygon()
Give the shape of this area as a Polygon.

Variables

o ep 
 protected RelPoint ep[]
The vertices of the polygon (there should always be four of them). The 1st is the virtual upper left corner; 2nd, the virtual upper right corner; 3rd, the virtual lower left corner; and 4th, the virtual lower right corner.

Constructors

o FourEdgeScaler 
 public FourEdgeScaler()
Initialise this scaler to MapDrawer's default full rectangle. This is (( -1, -1 ), ( 1, 1 )).

o FourEdgeScaler 
 public FourEdgeScaler(FourEdgeScaler src)
o FourEdgeScaler 
 public FourEdgeScaler(RelPoint p1,
                       RelPoint p2,
                       RelPoint p3,
                       RelPoint p4)
Initialise this scaler with vertices p1, p2, p3, p4.

Methods

o equals 
 public boolean equals(FourEdgeScaler cmp)
o scalePoint 
 public RelPoint scalePoint(RelPoint org)
Scales a point so that it is within the area between the four vertices.

Overrides:
scalePoint in class LayoutObject
o getBoundRect 
 public RelRect getBoundRect()
Get the bounding rectangle of this area.

Overrides:
getBoundRect in class LayoutObject
o toPolygon 
 public Vector toPolygon()
Give the shape of this area as a Polygon.

Overrides:
toPolygon in class LayoutObject
o setProperty 
 public int setProperty(MapDProp prop)
Properties supported by this LayoutObject: left, right, top, bottom, pt[nr], rotation

Overrides:
setProperty in class LayoutObject 
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