@Override
public Collection<Element> parse(DXFLayer layer)
throws NullArgumentException, InvalidArgumentException {
Collection<Element> archimedesSemilines = new ArrayList<Element>();
List<DXFRay> dxfSemilines = layer.getDXFEntities(DXFConstants.ENTITY_TYPE_RAY);
if (dxfSemilines != null) {
for (DXFRay dxfSemiline : dxfSemilines) {
org.kabeja.dxf.helpers.Point startPoint = dxfSemiline.getBasePoint();
Vector direction = dxfSemiline.getDirection();
double x = startPoint.getX();
double y = startPoint.getY();
Point p1 = new Point(x, y);
Point p2 = new Point(direction.getX() + x, direction.getY() + y);
Semiline semiline = new Semiline(p1, p2);
archimedesSemilines.add(semiline);
}
}
return archimedesSemilines;
}
/**
* Add one DXFEntity to the appropriate bucket.
*
* @param e the entity
* @param p the point. Could be the start or the end of the entity
*/
public void addEntity(DXFBucketEntity e, Point p) {
Iterator<DXFBucket> ib = buckets.iterator();
while (ib.hasNext()) {
DXFBucket b = ib.next();
if (b.topLeft.getY() <= p.getY()
&& b.topLeft.getX() <= p.getX()
&& b.bottomRight.getY() >= p.getY()
&& b.bottomRight.getX() >= p.getX()) {
// inside this bucket's region
b.push(e, p);
return;
}
}
System.out.println("Not added " + p);
}
/**
* @param cellsWide >0
* @param cellsHigh >0
* @param topLeft smallest X and smallest Y value
* @param bottomRight largest X and largest Y value
*/
public DXFBucketGrid(int cellsWide, int cellsHigh, Point topLeft, Point bottomRight) {
int totalCells = cellsWide * cellsHigh;
assert (totalCells > 0);
// System.out.println("OUTER BOUNDS
// ("+topLeft.getX()+","+topLeft.getY()+")-("+bottomRight.getX()+","+bottomRight.getY()+")");
buckets = new ArrayList<DXFBucket>();
double dx = bottomRight.getX() - topLeft.getX();
double dy = bottomRight.getY() - topLeft.getY();
int x, y;
for (y = 0; y < cellsHigh; ++y) {
for (x = 0; x < cellsWide; ++x) {
DXFBucket b = new DXFBucket(x, y);
buckets.add(b);
b.topLeft.setX((x / (double) cellsWide) * dx + topLeft.getX());
b.topLeft.setY((y / (double) cellsHigh) * dy + topLeft.getY());
b.bottomRight.setX(((x + 1) / (double) cellsWide) * dx + topLeft.getX());
b.bottomRight.setY(((y + 1) / (double) cellsHigh) * dy + topLeft.getY());
// System.out.println(x+","+y+" =
// ("+b.topLeft.getX()+","+b.topLeft.getY()+")-("+b.bottomRight.getX()+","+b.bottomRight.getY()+")");
}
}
}