Michael,
The below example is really cool and something I would have had to tackle most likely early next week for multi lineString render.
I took portions of your example and applied them to the Point (code listed below). Weird thing is my label does not show up. Style Code futher down...
========================================================
static final CoordinateReferenceSystem crs = DefaultGeographicCRS.WGS84;
static final int MAX_NAME_LENGTH = 20;
public FeatureCollection getPoint(TreeMap allPoints) throws Exception {
SimpleFeatureTypeBuilder typeBuilder = new SimpleFeatureTypeBuilder();
typeBuilder.setName("mytype");
typeBuilder.setCRS(crs);
typeBuilder.add("route", Point.class);
typeBuilder.length(MAX_NAME_LENGTH).add("name", String.class);
final SimpleFeatureType TYPE = typeBuilder.buildFeatureType();
FeatureCollection collection = FeatureCollections.newCollection();
GeometryFactory factory = JTSFactoryFinder.getGeometryFactory(null);
SimpleFeatureBuilder featureBuilder = new SimpleFeatureBuilder(TYPE);
Collection cl = allPoints.values();
Iterator it = cl.iterator();
while (it.hasNext()){
XYZPoint xyz = (XYZPoint)it.next();
Point point = factory.createPoint( new Coordinate(xyz.getX(),xyz.getY()));
featureBuilder.add(point);
collection.add(featureBuilder.buildFeature(null));
}
return collection;
}
===============================================================
Weird thing is my Point changes border color and fill color based on my style --- but the Label went by by.
Does the Label not showing up have to do with the following line:
typeBuilder.length(MAX_NAME_LENGTH).add("name", String.class);
somehow the style not mapping to the attribute "name"??
The following is my style settings for the Label:
===============================================================
Fill labelFill = styleFactory.createFill(filterFactory.literal(Color.RED));
AnchorPoint anchor = styleFactory.createAnchorPoint(filterFactory.literal(-0.5), filterFactory.literal(0));
Displacement disp = styleFactory.createDisplacement(filterFactory.literal(0), filterFactory.literal(-10));
LabelPlacement placement = styleFactory.createPointPlacement(anchor, disp, filterFactory.literal(0));
String labelField="name";
Font font=styleFactory.createFont(filterFactory.literal("Arial"), filterFactory.literal(true), filterFactory.literal(true), filterFactory.literal(8));
TextSymbolizer textSym = styleFactory.createTextSymbolizer(
labelFill, new Font[]{font}, null, filterFactory.property(labelField),
placement, null);
Rule rule = styleFactory.createRule();
//Label rule
rule.symbolizers().add(textSym);
FeatureTypeStyle fts = styleFactory.createFeatureTypeStyle(new Rule[]{rule});
Style style = styleFactory.createStyle();
style.featureTypeStyles().add(fts);
===============================================================
Hi Oliver,
I've meddled with your example a bit so that it generates one than one
feature and uses SimpleFeatureTypeBuilder (as shown in the CSV 2 SHP
Lab example at the bottom of the code).
public class Foo
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 collection = FeatureCollections.newCollection();
double x[][] = {{10, 20, 30, 40, 50}, {10, 20, 30, 40, 50}};
double y[][] = {{10, 20, 10, 20, 10}, {20, 30, 20, 30, 20}};
String[] names = {"foo", "bar"};
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, null);
// Now display the map
JMapFrame.showMap(map);
}
}
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