[GIS] How to add a background map to a java project

geotoolsjavaopenstreetmappostgis

I'm new at GIS. I am trying to make a java application that can display a map with certain points. I have achieved this using the geotools library. However, I want to put the map from OpenStreetMap or Google Streets in the background also. I already know that PostGIS can be used with GeoTools. However I don't know where to start. How is the best way to start once I have installed PostGIS?

Hello, I have also come across KML. I'm sorry I'm a beginner. What KML parsing mean, and how can I use this to show a map in my Java Application?

Best Answer

You'll need to add a WMS layer for your background map. The GeoTools tutorial has sections on adding WMS layers and querying databases (Example uses a PostGIS database). You might want to check them out.

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[GIS] How to build tile server from Openstreetmap data for beginner

There is a very good web site for beginners about OpenStreetMap world focused on people coming from other mapping services that could fit your question: http://switch2osm.org/serving-tiles/

But if you want to create some tiles to be served offline something like http://www.maptiler.org/ but it's focused on raster data.

If I had to do this I would probably take a look on TileMill to create the design and produce a MBTiles file and then convert it to a TMS file structure to be consumed by an OpenLayers or Leaflet in offline mode.

Yes, it's quite complicated and lot of new (but exciting!) stuff, sorry.

[GIS] KML 2.2 parsing with a group of point Geotools

I've just tried the following with the KML Samples file Google provide and all works fine:

private ArrayList<SimpleFeature> features;

  public ParseKML(String path) throws XMLStreamException, IOException, SAXException {
    source = new File(path);
    InputStream fis = new FileInputStream(source);
    PullParser parser = new PullParser(new KMLConfiguration(), fis, KML.Placemark);
    SimpleFeature f = null;
    features = new ArrayList<SimpleFeature>();
    while ((f = (SimpleFeature) parser.parse()) != null) {

      features.add(f);
    }
  }

  private SimpleFeatureCollection getFeatures() {
    return DataUtilities.collection(features);
  }

Best Answer

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[GIS] How to build tile server from Openstreetmap data for beginner

[GIS] KML 2.2 parsing with a group of point Geotools

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