riadh troudi a écrit :
I dont understand the first step, ( how to iterate over my point coordinates
in the sub class of MarkIterator )
It depends how yours point are stored. MarkIterator is an abstract class - it doesn't make any
assumption about how yours points are stored. You can put them in a java.util.List if you wish.
Lets suppose that you decided to store yours points in an List<Point2D>. MarkIterator would
conceptually wraps the List's iterator:
class MyIterator extends MarkIterator {
private final List<Point2D> coordinates;
private int index = -1;
MyIterator(List<Point2D> coordinates) {
this.coordinates = coordinates;
}
public int getIteratorPosition() {
return index;
}
public void setIteratorPosition(int index) {
this.index = index;
}
public boolean next() {
return ++index < coordinates.size();
}
public Point2D position() {
return coordinates.get(index);
}
}
There is also some other methods you can override in order to control the
color, shape, etc.
Martin.
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