public void setSize(int size) {
        this.size = size;

        maxLod = -1; // reset it
    }
Sets the size of this terrain patch. Note that this does <b>NOT </b>
rebuild the terrain at all. This is mostly used for outside constructors
of terrain patches.

@param size
           The new size.
jme3-terrain/src/main/java/com/jme3/terrain/geomipmap/TerrainPatch.java