Java Code Examples for com.vividsolutions.jts.geom.MultiPolygon#getNumGeometries()

@Override
public GamaShape getExteriorRing(final IScope scope) {

	// WARNING Only in 2D
	Geometry result = getInnerGeometry();
	if (result instanceof Polygon) {
		result = ((Polygon) result).getExteriorRing();
	} else

	if (result instanceof MultiPolygon) {
		final MultiPolygon mp = (MultiPolygon) result;
		final LineString lines[] = new LineString[mp.getNumGeometries()];
		for (int i = 0; i < mp.getNumGeometries(); i++) {
			lines[i] = ((Polygon) mp.getGeometryN(i)).getExteriorRing();
		}
		result = GEOMETRY_FACTORY.createMultiLineString(lines);

	}
	return new GamaShape(result);
}
 

/**
 *  Converts a <code>MultiPolygon</code> to &lt;MultiPolygon Text&gt; format,
 *  then appends it to the writer.
 *
 *@param  multiPolygon  the <code>MultiPolygon</code> to process
 *@param  writer        the output writer to append to
 */
private void appendMultiPolygonText(MultiPolygon multiPolygon, int level, Writer writer)
  throws IOException
{
  if (multiPolygon.isEmpty()) {
    writer.write("EMPTY");
  }
  else {
    int level2 = level;
    boolean doIndent = false;
    writer.write("(");
    for (int i = 0; i < multiPolygon.getNumGeometries(); i++) {
      if (i > 0) {
        writer.write(", ");
        level2 = level + 1;
        doIndent = true;
      }
      appendPolygonText((Polygon) multiPolygon.getGeometryN(i), level2, doIndent, writer);
    }
    writer.write(")");
  }
}
 

/**
 * Writes the body for a <code>MultiPolygon</code> object. MultiPolygons are
 * encoded into SVG path elements. This function writes the different
 * polygons in one d-attribute of an SVG path element, separated by an 'M'
 * character. (in other words, it calls the super.writeBody for each
 * polygon).
 *
 * @param o The <code>MultiPolygon</code> to be encoded.
 */
public void writeObject(Object o, GraphicsDocument document, boolean asChild) throws RenderException {
	document.writeElement("vml:shape", asChild);
	document.writeAttribute("fill-rule", "evenodd");
	document.writeAttributeStart("path");
	MultiPolygon mpoly = (MultiPolygon) o;
	for (int i = 0; i < mpoly.getNumGeometries(); i++) {
		Polygon poly = (Polygon) mpoly.getGeometryN(i);
		LineString shell = poly.getExteriorRing();
		int nHoles = poly.getNumInteriorRing();
		document.writeClosedPathContent(shell.getCoordinates());

		for (int j = 0; j < nHoles; j++) {
			document.writeClosedPathContent(poly.getInteriorRingN(j).getCoordinates());
		}
	}
	document.writeAttributeEnd();
}
 

/**
 * Writes the body for a <code>MultiPolygon</code> object. MultiPolygons are
 * encoded into SVG path elements. This function writes the different
 * polygons in one d-attribute of an SVG path element, separated by an 'M'
 * character. (in other words, it calls the super.writeBody for each
 * polygon).
 *
 * @param o The <code>MultiPolygon</code> to be encoded.
 */
public void writeObject(Object o, GraphicsDocument document, boolean asChild) throws RenderException {
	document.writeElement("path", asChild);
	document.writeAttribute("fill-rule", "evenodd");
	document.writeAttributeStart("d");
	MultiPolygon mpoly = (MultiPolygon) o;
	for (int i = 0; i < mpoly.getNumGeometries(); i++) {
		Polygon poly = (Polygon) mpoly.getGeometryN(i);
		LineString shell = poly.getExteriorRing();
		int nHoles = poly.getNumInteriorRing();
		document.writeClosedPathContent(shell.getCoordinates());

		for (int j = 0; j < nHoles; j++) {
			document.writeClosedPathContent(poly.getInteriorRingN(j).getCoordinates());
		}
	}
	document.writeAttributeEnd();
}
 

/**
 * Create MultiPolygon coordinates.
 */
public static MultiPolygonCoordinates createMultiPolygonCoordinates(MultiPolygon geom) {
  if (geom == null) {
    return null;
  }

  int len = geom.getNumGeometries();
  MultiPolygonCoordinates multiPolygonCoordinates = new MultiPolygonCoordinates(len);

  for (int i = 0; i < len; i++) {
    multiPolygonCoordinates.add(createPolygonCoordinates((Polygon) geom.getGeometryN(i)));
  }

  return multiPolygonCoordinates;
}
 

public void addMultiPolygon(final Placemark pm, final MultiPolygon mpoly, final double height) {
	final int ng = mpoly.getNumGeometries();
	final MultiGeometry mg = pm.createAndSetMultiGeometry();
	for (int gx = 0; gx < ng; gx++) {
		final de.micromata.opengis.kml.v_2_2_0.Polygon kmlpoly = mg.createAndAddPolygon();
		fillPolygon(kmlpoly, (Polygon) mpoly.getGeometryN(gx), height);
	}
}
 

private void drawGeometry(Geometry g, SymbolInfo symbol) {
	if (g instanceof MultiPolygon) {
		MultiPolygon mpoly = (MultiPolygon) g;
		for (int i = 0; i < mpoly.getNumGeometries(); i++) {
			drawGeometry(mpoly.getGeometryN(i), symbol);
		}
	} else if (g instanceof MultiLineString) {
		MultiLineString mline = (MultiLineString) g;
		for (int i = 0; i < mline.getNumGeometries(); i++) {
			drawGeometry(mline.getGeometryN(i), symbol);
		}
	} else if (g instanceof MultiPoint) {
		MultiPoint mpoint = (MultiPoint) g;
		for (int i = 0; i < mpoint.getNumGeometries(); i++) {
			drawGeometry(mpoint.getGeometryN(i), symbol);
		}
	} else if (g instanceof Polygon) {
		Polygon poly = (Polygon) g;
		LineString shell = poly.getExteriorRing();
		int nHoles = poly.getNumInteriorRing();
		drawPathContent(shell.getCoordinates());
		for (int j = 0; j < nHoles; j++) {
			drawPathContent(poly.getInteriorRingN(j).getCoordinates());
		}
		template.closePathEoFillStroke();
	} else if (g instanceof LineString) {
		LineString line = (LineString) g;
		drawPathContent(line.getCoordinates());
		template.stroke();
	} else if (g instanceof Point) {
		Point point = (Point) g;
		drawPoint(point.getCoordinate(), symbol);
		template.fillStroke();
	}
}
 

public List<String> getOverlay(final Geometry layer1,
		final Geometry layer2, final int op) {
	final List<String> resultLayer = new ArrayList<String>();
	Geometry geomContorno = null;

	switch (op) {
	case OverlayOp.INTERSECTION:
		geomContorno = EnhancedPrecisionOp.intersection(
				layer1.buffer(TOLERANCIA), layer2.buffer(TOLERANCIA));
		break;
	case OverlayOp.DIFFERENCE:
		geomContorno = EnhancedPrecisionOp.difference(
				layer1.buffer(TOLERANCIA), layer2.buffer(TOLERANCIA));
		break;
	case OverlayOp.SYMDIFFERENCE:
		geomContorno = EnhancedPrecisionOp.symDifference(
				layer1.buffer(TOLERANCIA), layer2.buffer(TOLERANCIA));
		break;
	default:
		break;
	}

	if (geomContorno != null) {

		if (geomContorno instanceof Polygon) {
			resultLayer.add(geomContorno.toText());
		} else if (geomContorno instanceof MultiPolygon) {

			final MultiPolygon multiPolygon = (MultiPolygon) geomContorno;
			for (int i = 0; i < multiPolygon.getNumGeometries(); i++) {
				final Polygon pol = (Polygon) multiPolygon.getGeometryN(i);
				resultLayer.add(pol.toText());
			}
		} else if (geomContorno instanceof GeometryCollection) {

			final GeometryCollection gc = (GeometryCollection) geomContorno;
			for (int i = 0; i < gc.getNumGeometries(); i++) {
				final Geometry geom = gc.getGeometryN(i);
				resultLayer.add(geom.toText());
			}
		}
	}

	return resultLayer;
}