ATP-3-09-02 Field Artillery Survey Download
Page 156 of 168
Appendix D D-6 ATP 3-09.02 16 February 2016 Use the different methods discussed above to change the brightness and contrast of the images on each chip until you feel that you have the most detail in each image. You might want to use different Brightness and Contrast settings for each image in order to make out different details. Close the ‘Brightness/Contrast’ window. Change the pixel ratio to 1:4 by clicking on the down arrow located next to the ratio 1:1. The selections are 1:1, 1:2 and 1:4. The area around the building now becomes more visible in the image and the scale has changed to 200mts. Activate the Left Chip View and click once on the center of the building. The target marker in the Left Chip View moves to the new location. Clicking once on a chip that is not yet active, activates that chip. Clicking again in the active chip moves the marker to the new location. The marker in the other chip does not move. Re-center the image in the Left Chip View on the middle of the building by selecting the double black box on the toolbar (to the right of the ratio). The Left Chip View re-centers on the new location of the target marker. Note. You cannot re-center on a position if the position is too close to the edge of the chip. Click twice rapidly on the target marker in the Left Chip View. The target marker in the Right Chip View moves to the same location as the target marker in the Left Chip View. Note. Clicking twice rapidly on a location causes the markers in both images to move to that location. The small box in the center of the screen directly below the ‘Get Coordinate’ tab tells you (in green) that the location (red marker) is the active marker. The area above that tells you the current coordinates of the active marker. (If this information is not displayed, click on the ‘Get Coordinates’ bull’s-eye icon located just above the active marker selection. Re-center the Right Chip View on the Target Marker and Return the ratio to 1:1. Activate the Left Chip View and again place the cursor in the center of the building. Click twice rapidly on the center of the building. The target markers in each chip view move to the center of the building. Click on the box with the four arrows that is to the right of the Brightness and Contrast arrow. The Left Chip View becomes the full screen. In Windows, a small dialog box appears at the bottom of the screen with the necessary tools to “refine” your target. Adjust the target marker in the Left Chip View using the keyboard arrow keys so it is more precisely centered on the building. Return to the two images by pressing Alt+F4. Activate the Right Chip View and make it full screen. Adjust the target marker in the Right Chip View so it also is more precisely centered on the building. Select Alt+F4 to return to the double image view. The double images reappear. Activate the Left Chip View. Select the Magnifying glass on the toolbar. Magnifications of 2X and 4X are available. The rest are Large, Medium, Small, Upper Left, Upper Right, Bottom Left, Bottom Right and Tracking. “Tracking” moves the magnified area while the marker remains fixed. The target area is magnified 2X. Click on the Left Chip View to activate it. Adjust the red dot so that it is more precisely centered on the building. (Ratio should be 1:1) There are two ways to adjust the red dot. You should practice both of them. Place the pointer in the magnified area, press the Left Mouse Button and move the pointer. The magnified area moves, following the pointer. Press the arrow keys on the keyboard until the red dot is in the location you want it. (This is the best method to use.)