Any chance you could put up a few examples for the usage of the Geomap object?
I remember an example for a while back, but everything was commented, and I was hoping for an update on it… But now it seems you deleted it? 
Thanks in advance.
The geomap system hasn't been touched in a while, we are still waiting for a certain someone to make a terrain system 
Usage is in general easy, you load a heightmap via the GeomapLoader, then you can split the geomap in whatever way you like (optional) and there's a special method to create a mesh out of it. So once you get the mesh you just put it into a geometry, assign a material, and you got terrain.
Sorry for bumping this rather old thread.
Alright, so I got the Geomap running now, I just have one last question
In jME2, you can do map.getHeight(x, z);
Is there any way to do the same thing for the geomap?
The map.getValue(x, y) is only dealing with integers (and I'm pretty sure those coordinates are local index variables??)
Thanks in advance.
The map.getValue() method gives you the unscaled height at the given point, if you want to get the actual height, you have to scale it by the Y scale value you gave to the createMesh method.
Momoko_Fan said:
The map.getValue() method gives you the unscaled height at the given point, if you want to get the actual height, you have to scale it by the Y scale value you gave to the createMesh method.
/**
* Gets the height of the {@link Geomap} at a current position.
* @param location The location at which we want the height.
* @return The height of the {@link Geomap}, at the point specified.
*/
public static float getHeight(Vector3f location) {
int x = (int) (location.x / scale.x);
int y = (int) (location.z / scale.z);
return map.getValue(x, y) * scale.y;
}
/**
* <code>getHeight</code> returns the height of an arbitrary point on the
* terrain. If the point is between height point values, the height is
* linearly interpolated. This provides smooth height calculations. If the
* point provided is not within the bounds of the height map, 0 is returned.
*
* @param x
* the x coordinate to check.
* @param z
* the z coordinate to check.
* @return the height at the provided location.
*/
public float getHeight(float x, float z) {
x /= SCALE.x;
z /= SCALE.z;
int col = (int) Math.floor(x);
int row = (int) Math.floor(z);
if (col < 0 || row < 0 || col >= map.getHeight() - 1 || row >= map.getWidth() - 1) {
return 0;
}
float offsetX = x - col;
float offsetY = z - row;
int focalSpot = (col + row * map.getWidth());
// The height at the upper left corner.
float upperLeft = map.getValue(focalSpot) * SCALE.y;
//The height at the lower right corner.
float lowerRight = map.getValue(focalSpot + map.getWidth() + 1) * SCALE.y;
// Use linear interpolation to find the height.
if(offsetX > offsetY) {
// The height at the upper left corner.
float upperRight = map.getValue(focalSpot + 1) * SCALE.y;
return upperLeft * (1 - offsetX) + upperRight * (offsetX - offsetY) + lowerRight * offsetY;
} else {
// The height at the lower left corner.
float lowerLeft = map.getValue(focalSpot + map.getWidth()) * SCALE.y;
return upperLeft * (1 - offsetY) + lowerLeft * (offsetY - offsetX) + lowerRight * offsetX;
}
}
I know this is an old thread, but could you post your basic heightmap loading code? I can't seem to get it working on my end and a working example would be invaluable.