Using the Auto Locate feature

The Auto Locate feature appears on the GCP Collection window, the Tie Point Collection window, and the Elevation Match Point window. It is a tool to help you speed up the collection process.

OrthoEngine can estimate the position of the point by using an automatic correlation method once it has enough information to calculate the math model. Therefore, the project must have ephemeris data for satellite imagery, GPS/INS data for aerial photography, a minimum number of GCPs, or three tie points per image for Auto Locate to work. You should verify the estimated positions and adjust them, if necessary, before accepting them.

The cursor will be placed automatically on the pixel and line position of the selected point in all the open images at a default zoom level when Auto Locate is selected and you:

• Select an existing point in the GCP Collection window.
• Type the elevation and coordinates under Working Image Position in a GCP Collection window.
• Accept a new tie point in the Tie Point Collection window.
• Accept a new elevation match point in the Elevation Match Point Collection window.