"' Ground control points "' The coordinates of existing ground control points can be imported and annotated.
2.
"' Ground control points "' The coordinates of existing ground control points can be imported and annotated.
3.
They can also be placed with a mouse click to show the surveyor where to paint and measure a new ground control point.
4.
NAIP imagery is acquired at a one-meter ground sample distance ( GSD ) with a horizontal accuracy that matches within six meters of photo-identifiable ground control points.
5.
In case the airborne GPS / IMU data is not available, these orientation parameters will be determined by the program using ground control points ( GCPs ), tie points and aerial triangulation at the next step of the workflow.
6.
Providing that at least two ground control points are presented to set the reference distance of the model, the volume of a stockpile or construction pit could be calculated automatically with two mouse clicks, to say nothing of the line distances measurements.
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