Sketching and Measuring
One of the first things you want to do in any geospatial activity is to measure features on the screen and draw georeferenced interpretations. All TNTgis view windows provide measuring tools and a sketch layer so you can draw elastic lines, boxes, circles, and polygons and see immediate position, orientation, length, and area values. You can also save your visual interpretations as a CAD object in a Project File.
>sketch visual interpretations
calipers
planimeter
solid / boundary polygon
set line color / width
calibrate object scale
annotate with text
protractor
circle / ellipse
local histogram / profile
save your measurements
examine raster cell values
