for y in range(0,ypts):
			for x in range(0,xpts):
				(h,) = struct.unpack('h',ter.read(2))
				z = baseheight + h*heightscale/65536.0
				v = NMesh.Vert(x,y,z)
				terrainName.verts.append(v)
				valbar=valbar+1
				if valbar%stepbar==0:
					gui()
					Register(gui,event,bevent)
					Blender.Redraw()
				xmax=x+1
				ymax=y+1
		ter.close()