chg tilingdlg to work with either elevation or imagery
chg tilingdlg to work with either elevation or imagery

seanisom/vtp,markraz/vtp,seanisom/vtp,seanisom/vtp,markraz/vtp,nakijun/vtp,nakijun/vtp,markraz/vtp,markraz/vtp,nakijun/vtp,seanisom/vtp,nakijun/vtp,seanisom/vtp,markraz/vtp,nakijun/vtp