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 TNT 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

Sketching and Measuring (file date: 5 May 06)

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