package org.geotools.data.dxf.entities;
import com.vividsolutions.jts.geom.Coordinate;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.geom.LinearRing;
import org.geotools.data.dxf.parser.DXFLineNumberReader;
import java.io.EOFException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Vector;
import org.geotools.data.GeometryType;
import org.geotools.data.dxf.parser.DXFUnivers;
import org.geotools.data.dxf.header.DXFLayer;
import org.geotools.data.dxf.header.DXFLineType;
import org.geotools.data.dxf.header.DXFTables;
import org.geotools.data.dxf.parser.DXFCodeValuePair;
import org.geotools.data.dxf.parser.DXFGroupCode;
import org.geotools.data.dxf.parser.DXFParseException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
*
*
* @source $URL$
*/
public class DXFPolyline extends DXFEntity {
private static final Log log = LogFactory.getLog(DXFPolyline.class);
public String _id;
public int _flag = 0;
public Vector<DXFVertex> theVertex = new Vector<DXFVertex>();
public DXFPolyline(DXFPolyline newPolyLine) {
super(newPolyLine.getColor(), newPolyLine.getRefLayer(), 0, newPolyLine.getLineType(), newPolyLine.getThickness());
_id = newPolyLine._id;
for (int i = 0; i < newPolyLine.theVertex.size(); i++) {
theVertex.add(new DXFVertex(newPolyLine.theVertex.elementAt(i)));
}
_flag = newPolyLine._flag;
setType(newPolyLine.getType());
setStartingLineNumber(newPolyLine.getStartingLineNumber());
setUnivers(newPolyLine.getUnivers());
setName("DXFPolyline");
}
public DXFPolyline(String name, int flag, int c, DXFLayer l, Vector<DXFVertex> v, int visibility, DXFLineType lineType, double thickness) {
super(c, l, visibility, lineType, thickness);
_id = name;
if (v == null) {
v = new Vector<DXFVertex>();
}
theVertex = v;
_flag = flag;
setName("DXFPolyline");
}
public DXFPolyline(String name, int flag, int c, DXFLayer l, Vector<DXFVertex> v, int visibility, DXFLineType lineType, double thickness, DXFExtendedData extData) {
super(c, l, visibility, lineType, thickness);
_id = name;
if (v == null) {
v = new Vector<DXFVertex>();
}
theVertex = v;
_flag = flag;
_extendedData = extData;
setName("DXFPolyline");
}
public static DXFPolyline read(DXFLineNumberReader br, DXFUnivers univers) throws IOException {
String name = "";
int visibility = 0, flag = 0, c = -1;
DXFLineType lineType = null;
Vector<DXFVertex> lv = new Vector<DXFVertex>();
DXFLayer l = null;
int sln = br.getLineNumber();
log.debug(">>Enter at line: " + sln);
DXFCodeValuePair cvp = null;
DXFGroupCode gc = null;
DXFExtendedData _extData = null;
boolean doLoop = true;
while (doLoop) {
cvp = new DXFCodeValuePair();
try {
gc = cvp.read(br);
} catch (DXFParseException ex) {
throw new IOException("DXF parse error " + ex.getLocalizedMessage());
} catch (EOFException e) {
doLoop = false;
break;
}
switch (gc) {
case TYPE:
String type = cvp.getStringValue();
if (SEQEND.equals(type)) {
doLoop = false;
} else if (VERTEX.equals(type)) {
lv.add(DXFVertex.read(br, univers));
} else {
br.reset();
doLoop = false;
}
break;
case NAME: //"2"
name = cvp.getStringValue();
break;
case LAYER_NAME: //"8"
l = univers.findLayer(cvp.getStringValue());
break;
case LINETYPE_NAME: //"6"
lineType = univers.findLType(cvp.getStringValue());
break;
case COLOR: //"62"
c = cvp.getShortValue();
break;
case INT_1: //"70"
flag = cvp.getShortValue();
break;
case VISIBILITY: //"60"
visibility = cvp.getShortValue();
break;
case XDATA_APPLICATION_NAME:
String appName = cvp.getStringValue();
_extData = DXFExtendedData.getExtendedData(br);
_extData.setAppName(appName);
break;
default:
break;
}
}
DXFPolyline e = new DXFPolyline(name, flag, c, l, lv, visibility, lineType, DXFTables.defaultThickness,_extData);
if ((flag & 1) == 1) {
e.setType(GeometryType.POLYGON);
} else {
e.setType(GeometryType.LINE);
}
e.setStartingLineNumber(sln);
e.setUnivers(univers);
log.debug(e.toString(name, flag, lv.size(), c, visibility, DXFTables.defaultThickness));
log.debug(">>Exit at line: " + br.getLineNumber());
return e;
}
public String toString(String name, int flag, int numVert, int c, int visibility, double thickness) {
StringBuffer s = new StringBuffer();
s.append("DXFPolyline [");
s.append("name: ");
s.append(name + ", ");
s.append("flag: ");
s.append(flag + ", ");
s.append("numVert: ");
s.append(numVert + ", ");
s.append("color: ");
s.append(c + ", ");
s.append("visibility: ");
s.append(visibility + ", ");
s.append("thickness: ");
s.append(thickness);
s.append("]");
return s.toString();
}
@Override
public Geometry getGeometry() {
if (geometry == null) {
updateGeometry();
}
return super.getGeometry();
}
@Override
public void updateGeometry() {
Coordinate[] ca = toCoordinateArray();
if (ca != null && ca.length > 1) {
if (getType() == GeometryType.POLYGON) {
LinearRing lr = getUnivers().getGeometryFactory().createLinearRing(ca);
geometry = getUnivers().getGeometryFactory().createPolygon(lr, null);
} else {
geometry = getUnivers().getGeometryFactory().createLineString(ca);
}
} else {
addError("coordinate array faulty, size: " + (ca == null ? 0 : ca.length));
}
}
public Coordinate[] toCoordinateArray() {
if (theVertex == null) {
addError("coordinate array can not be created.");
return null;
}
Iterator it = theVertex.iterator();
List<Coordinate> lc = new ArrayList<Coordinate>();
while (it.hasNext()) {
DXFVertex v = (DXFVertex) it.next();
lc.add(v.toCoordinate());
}
if (getType() == GeometryType.POLYGON) {
if (lc.size() >= 2) {
Coordinate firstc = lc.get(0);
Coordinate lastc = lc.get(lc.size() - 1);
if (!firstc.equals2D(lastc)) {
lc.add(firstc);
}
}
}
/* TODO uitzoeken of lijn zichzelf snijdt, zo ja nodding
* zie jts union:
* Collection lineStrings = . . .
* Geometry nodedLineStrings = (LineString) lineStrings.get(0);
* for (int i = 1; i < lineStrings.size(); i++) {
* nodedLineStrings = nodedLineStrings.union((LineString)lineStrings.get(i));
* */
return rotateAndPlace(lc.toArray(new Coordinate[]{}));
}
@Override
public DXFEntity translate(double x, double y) {
// Move all vertices
Iterator iter = theVertex.iterator();
while (iter.hasNext()) {
DXFVertex vertex = (DXFVertex) iter.next();
vertex._point.x += x;
vertex._point.y += y;
}
return this;
}
@Override
public DXFEntity clone() {
return new DXFPolyline(this);
}
}