This function allows you to join several maps into one. Land/Air will automatically carry out the equalling of scales and projection for the newly created map. In this way, you will not have to calibrate it yourself. Prepare and join maps:
1. Open all the maps that you want to join together.
2. On the map scale option of the tool bar, establish a 100% to obtain the maximum visual quality of the new map. If you view the maps at a scale value lower than 100% the new map will have less details than the originals; you will get less details when you zoom in on the new map.
3. Select the menu option ‘Maps > Join maps’. A new window will give you information about the newly joined map. You will find information about the pixel size, the scale and the projection that Land/Air will use to generate the map.
4. Click on the button ‘Yes’ if you want to proceed with joining the maps. You will be asked to assign a name for the new file.
5. In the window to select name for the bitmap we recommend that you save the map as an *.ECW file. This type of format allows you to store the image and the calibration in the same file.
6. If you want to store the map in two separate files (image and calibration) first save the image file in the window select name for the bitmap, and then, in the window that appears Introduce name of map, save the map as a *.IMP file but using the same name as the bitmap image.
7. Once you have stored the new map you will be able to view the final result.
Our recommendation is that the maps you want to join together do not have frames around them; frames break up the continuity between the different maps. A frame is a border, varying in thickness, drawn around the perimeter of a map.
To adjust frames so that you can join maps together, use the adjust frames tool; you will find this tool in the calibration menu. Follow these instructions:
1. Open the framed map you want to adjust to make it joinable.
2. Open the calibration window by choosing the Revise map calibration option in the multimaps, advanced… section. You can also reach this option using maps>revise map calibration.
3. Select ‘Frames’ label and click on the ‘Modify map frames’ option. The frames adjustment tool window will open.
4. A red line with grey points on it will border the drawing of the map. Click on any of the grey points to move it and adequately adjust the frame to your wish.
5. When you have made all the adjustments you consider necessary, click on ‘Save’ button. If you want to save a new copy of the map (recommended), give it a new name. The operation will conclude when you click ‘Save’.
NOTE: The next time you adjust the same map you will not be able to un-cover the areas you cut out in previous adjustment operations. This is why we recommend that you to be careful when you adjust a map and to always store a copy of the original map. 3D maps can anso be unified, but option to do it is in the list of open landscapes.