WoodDTMViewer 1.6.0

Windows installer, 16 MB. Upgrades any earlier version in place; projects and settings in C:\ProgramData\WoodDTMViewer are kept.

3 free days on a new install, then a licence key from Whoastra Labs (USD 400 per licence per year, or USD 50 per month; Woodrowstraley@gmail.com). Loading files, difference layers and GeoTIFF export need the key; whatever is on screen always stays.

Highlights: large DTM .xyz files (block-sparse grid), several surveys in one window, point / offset / distance / profile / area in 2D and 3D, waypoints with CSV import, DXF / DWG drawings, GeoTIFF for NavView, projects with an autosaved working set, view-only access for other PCs on the network, web maps and weather, WGS84 and NAD27 UTM zones with an EPSG finder.