Using WMS layers with j2memap library….

Posted in: tutorial MMT by admin on 24 May 2007

In the latest release of J2memap library, a new interface has been defined: MapCustomOverlay

If you create a class that implements MapCustomOverlay, you will have the ability to dsiplay new layers on top of an existing map.

The implementation is easy, there are two methods:

   String getTileURL(int x,int y,int z,int sizeSq,boolean isSat);

and

    public boolean isTransparent();

  The last one just have to return true if transparent, or false otherwhise. The getTitleUrl must return to URL of a tile to be loaded at the corresponding x,y positions. sizeSq is the size of a square, usually 256, while isSat is true if the user is currently displaying a satellite image.

  To convert x “pixels values” into longitude, you can use MapCanvas.LonFromX() and MapCanvas.LatFromY() for y value.
  To display this layer, call the setOverlay(MapCustomOverlay) function (with null parameter to remove it). Just one overlay can be displayed at a time.
  This can be used to easily create WMS overlay, if you know the URL of a WMS server.

  Latest question, is: great, but what happens if I do not want to program and I want to be able to display a custom layer? Well, something good is coming, but if you want to test it, just drop me an email

J2memap V09.20

Posted in: Release by admin on 14 May 2007

• Better feedback when a map is not found at a certain level of zoom
• upgrade with new googlemap version….
• Imrpvoed support of KML file (with custom icon support)

A separed post about the KML support later on

Want to participate in J2meMap project and future extensions?

Posted in: MMT/J2memap by admin on 6 May 2007

Interested by creating cool mobile mashup, or by helping this nice project?

We are looking for some help/ideas in the following areas:
- You have some mashup ideas that you would like to implement?
- You want to participate to the project and you are a server side developper (Ruby On Rails?)
- You have some j2me knowledge
- Or you just want to help us on some various task (like managing forum!)

Just contact me (thomas.landspurg at gmail.com )