e.log(qq);

                    if (qq !=null) {

                        geo = L.ScalarField.fromGeoTIFF(tt);

                        colorScale = chroma.scale('RdYlGn').domain([geo.range[1], geo.range[0]]);

                        dtm = L.canvasLayer.scalarField(geo, {
                            color: colorScale,
                            opacity: 0.7}).addTo(map);

                        map.fitBounds(dtm.getBounds());

                        dtm.on('click', function (e) {
                       