OMG LOL
T h a n k . Y o u !
Well I guess I went the long way around the block on that one! :-)
Here is the much less complicated working code with the LinePlacement! Ugh
package org.geotools.demo;
import org.geotools.factory.CommonFactoryFinder;
import org.geotools.feature.FeatureCollection;
import org.geotools.feature.FeatureCollections;
import org.geotools.feature.simple.SimpleFeatureBuilder;
import org.geotools.feature.simple.SimpleFeatureTypeBuilder;
import org.geotools.map.DefaultMapContext;
import org.geotools.map.MapContext;
import org.geotools.referencing.crs.DefaultGeographicCRS;
import org.geotools.styling.AnchorPoint;
import org.geotools.styling.Displacement;
import org.geotools.styling.FeatureTypeStyle;
import org.geotools.styling.Fill;
import org.geotools.styling.Font;
import org.geotools.styling.Graphic;
import org.geotools.styling.LabelPlacement;
import org.geotools.styling.LinePlacement;
import org.geotools.styling.LineSymbolizer;
import org.geotools.styling.Mark;
import org.geotools.styling.PointSymbolizer;
import org.geotools.styling.Rule;
import org.geotools.styling.Stroke;
import org.geotools.styling.Style;
import org.geotools.styling.StyleFactory;
import org.geotools.styling.TextSymbolizer;
import org.geotools.swing.JMapFrame;
import java.awt.Color;
import java.util.*;
import org.geotools.geometry.jts.JTSFactoryFinder;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import org.opengis.filter.FilterFactory;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
import com.vividsolutions.jts.geom.Coordinate;
import com.vividsolutions.jts.geom.CoordinateArrays;
import com.vividsolutions.jts.geom.GeometryFactory;
import com.vividsolutions.jts.geom.LineString;
public class DisplayMultiLineForced {
static StyleFactory styleFactory =
CommonFactoryFinder.getStyleFactory(null);
static FilterFactory filterFactory =
CommonFactoryFinder.getFilterFactory(null);
static final CoordinateReferenceSystem crs = DefaultGeographicCRS.WGS84;
static final int MAX_NAME_LENGTH = 20;
public static void main(String[] args) throws Exception {
SimpleFeatureTypeBuilder typeBuilder = new SimpleFeatureTypeBuilder();
typeBuilder.setName("mytype");
typeBuilder.setCRS(crs);
typeBuilder.add("route", LineString.class);
typeBuilder.length(MAX_NAME_LENGTH).add("name", String.class);
final SimpleFeatureType TYPE = typeBuilder.buildFeatureType();
FeatureCollection<SimpleFeatureType, SimpleFeature> collection =
FeatureCollections.newCollection();
double x[][] = {{10, 20}, {20, 30}, {30, 40}, {40, 50}};
double y[][] = {{10, 20}, {20, 10}, {10, 20}, {20, 10}};
//double x[][] = {{20, 10}, {30, 20}, {40, 30}, {50, 40}};
//double y[][] = {{20, 10}, {10, 20}, {20, 10}, {10, 20}};
String[] names = {"L1", "L2", "L3", "L4" };
GeometryFactory factory = JTSFactoryFinder.getGeometryFactory(null);
SimpleFeatureBuilder featureBuilder = new SimpleFeatureBuilder(TYPE);
ArrayList<Coordinate> coordList = new ArrayList<Coordinate>();
for (int line = 0; line < x.length; line++) {
for (int i = 0; i < x[line].length; i++) {
coordList.add(new Coordinate(x[line][i], y[line][i]));
}
Coordinate[] coords = CoordinateArrays.toCoordinateArray(coordList);
LineString lineString = factory.createLineString(coords);
featureBuilder.add(lineString);
featureBuilder.add(names[line]);
collection.add(featureBuilder.buildFeature(null));
coordList.clear();
}
MapContext map = new DefaultMapContext();
map.setTitle("My beautiful lines");
map.addLayer(collection, createLineStyle());
// Now display the map
JMapFrame.showMap(map);
}
/**
* Create a Style to draw line features as thin blue lines
*/
private static Style createLineStyle() {
Stroke stroke = styleFactory.createStroke(
filterFactory.literal(Color.BLUE),
filterFactory.literal(1));
/*
* Setting the geometryPropertyName arg to null signals that we want to
* draw the default geomettry of features
*/
LineSymbolizer sym = styleFactory.createLineSymbolizer(stroke, null);
//Label Formatting
String labelField="name";
Fill labelFill =
styleFactory.createFill(filterFactory.literal(Color.black));
LinePlacement placement =
styleFactory.createLinePlacement(filterFactory.literal(5));
Font font = styleFactory.getDefaultFont();
font=styleFactory.createFont(filterFactory.literal("Arial"),
filterFactory.literal("italic"), filterFactory.literal(8),
filterFactory.literal(8));
TextSymbolizer textSym = styleFactory.createTextSymbolizer(
labelFill, new Font[]{font}, null,
filterFactory.property(labelField),
placement, null);
Rule rule = styleFactory.createRule();
rule.symbolizers().add(sym);
rule.symbolizers().add(textSym);
FeatureTypeStyle fts = styleFactory.createFeatureTypeStyle(new
Rule[]{rule});
Style style = styleFactory.createStyle();
style.featureTypeStyles().add(fts);
return style;
}
}
-----Original Message-----
From: "Ian Turton" <[email protected]>
Sent: Thursday, December 17, 2009 4:41pm
To: "Oliver Gottwald" <[email protected]>
Cc: "geouser" <[email protected]>
Subject: Re: [Geotools-gt2-users] How to: Make Transparent Overlay Layer?
If you use a LinePlacement instead of a PointPlacement then the label
will align with the line and save you calculating the angle for each
label.
Ian
--
Ian Turton
Sent from Chatham, New Jersey, United States
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