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/*
* Created on May 1, 2006
*
* TODO To change the template for this generated file go to
* Window - Preferences - Java - Code Style - Code Templates
*/
package org.reprap.geometry;
import java.io.IOException;
import org.reprap.Printer;
import org.reprap.ReprapException;
import org.reprap.geometry.polygons.Rr2Point;
import org.reprap.geometry.polygons.RrBox;
import org.reprap.geometry.polygons.RrCSG;
import org.reprap.geometry.polygons.RrCSGOp;
import org.reprap.geometry.polygons.RrCSGPolygon;
import org.reprap.geometry.polygons.RrInterval;
import org.reprap.geometry.polygons.RrLine;
import org.reprap.geometry.polygons.RrPolygon;
import org.reprap.geometry.polygons.RrPolygonList;
public class LayerProducer {
private static final double extrusionWidth = 0.3; ///< Extrusion thickness in millimeters
private static int gapMaterial = 0;
private static int solidMaterial = 1;
private Printer printer;
private RrPolygonList hatchedPolygons;
private RrPolygonList borderPolygons;
private RrCSGPolygon csg_p;
/**
* @param reprap
* @param list
* @param hatchDirection
*/
public LayerProducer(Printer printer, RrPolygonList list, RrLine hatchDirection) {
this.printer = printer;
borderPolygons = list;
RrPolygon hatched = list.hatch(hatchDirection, extrusionWidth,
gapMaterial, solidMaterial);
hatchedPolygons = new RrPolygonList();
hatchedPolygons.append(hatched);
//new RrGraphics(p_list, false);
csg_p = null;
//RrBox big = hatchedPolygons.box.scale(1.1);
//double width = big.x().length();
//double height = big.y().length();
}
private void plot(Rr2Point a) throws ReprapException, IOException
{
if (printer.isCancelled()) return;
printer.printTo(a.x(), a.y(), printer.getZ());
}
private void move(Rr2Point a) throws ReprapException, IOException
{
if (printer.isCancelled()) return;
printer.moveTo(a.x(), a.y(), printer.getZ());
}
/**
* Plot a polygon
* @throws IOException
* @throws ReprapException
*/
private void plot(RrPolygon p) throws ReprapException, IOException
{
int leng = p.size();
for(int j = 0; j <= leng; j++)
{
int i = j%leng;
int f = p.flag(i);
if(f != 0 && j != 0)
{
if (printer.isCancelled()) return;
plot(p.point(i));
} else
if (printer.isCancelled()) return;
move(p.point(i));
}
}
/**
* Plot a section of parametric line
* @throws IOException
* @throws ReprapException
*/
private void plot(RrLine a, RrInterval i) throws ReprapException, IOException
{
if(i.empty()) return;
if (printer.isCancelled()) return;
move(a.point(i.low()));
if (printer.isCancelled()) return;
plot(a.point(i.high()));
}
/**
* Plot a set in a box
* @throws IOException
* @throws ReprapException
*/
private void plot(RrCSG c, RrBox b) throws ReprapException, IOException
{
switch(c.complexity())
{
case 0:
return;
// One half-plane in the box
case 1:
if(c.plane() == null)
System.err.println("plot(RrCSG, RrBox): hp not set.");
RrLine ln = new RrLine(c.plane());
RrInterval range = RrInterval.big_interval();
range = b.wipe(ln, range);
if(range.empty()) return;
if (printer.isCancelled()) return;
plot(ln, range);
break;
// Two - maybe a corner, or they may not intersect
case 2:
RrLine ln1 = new RrLine(c.c_1().plane());
RrInterval range1 = RrInterval.big_interval();
range1 = b.wipe(ln1, range1);
RrLine ln2 = new RrLine(c.c_2().plane());
RrInterval range2 = RrInterval.big_interval();
range2 = b.wipe(ln2, range2);
if(c.operator() == RrCSGOp.INTERSECTION)
{
range2 = c.c_1().plane().wipe(ln2, range2);
range1 = c.c_2().plane().wipe(ln1, range1);
} else
{
range2 = c.c_1().plane().complement().wipe(ln2, range2);
range1 = c.c_2().plane().complement().wipe(ln1, range1);
}
if (printer.isCancelled()) return;
plot(ln1, range1);
if (printer.isCancelled()) return;
plot(ln2, range2);
break;
default:
System.err.println("plot(RrCSG, RrBox): complexity > 2.");
}
}
/**
* Plot a divided CSG polygon recursively
* @throws IOException
* @throws ReprapException
*/
private void plot(RrCSGPolygon p) throws ReprapException, IOException
{
if(p.c_1() == null)
{
if (printer.isCancelled()) return;
plot(p.csg(), p.box());
} else
{
if (printer.isCancelled()) return;
plot(p.c_1());
if (printer.isCancelled()) return;
plot(p.c_2());
if (printer.isCancelled()) return;
plot(p.c_3());
if (printer.isCancelled()) return;
plot(p.c_4());
}
}
/**
* Master plot function - draw everything
* @throws IOException
* @throws ReprapException
*/
public void plot() throws ReprapException, IOException
{
if (hatchedPolygons == null)
plot(csg_p);
else {
int leng = borderPolygons.size();
for(int i = 0; i < leng; i++) {
plot(borderPolygons.polygon(i));
}
leng = hatchedPolygons.size();
for(int i = 0; i < leng; i++) {
if (printer.isCancelled())
break;
plot(hatchedPolygons.polygon(i));
}
}
}
}
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