rectifying manual تعليم لبرنامج global mapper
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Export and Rectifying Google Earth image using Global Mapper
All right reserved to the author This manual prepared and designed by Youssef Hassan GIS specialist [email protected]
1. Open Google Earth pro and draw polygon for the area that you
want to export like this
Export and Rectifying Google Earth image using Global Mapper
All right reserved to the author This manual prepared and designed by Youssef Hassan GIS specialist [email protected]
2. On Google left window right click on the polygon and save as
Export and Rectifying Google Earth image using Global Mapper
All right reserved to the author This manual prepared and designed by Youssef Hassan GIS specialist [email protected]
3. Save file and for save as type choose kml then click save
Export and Rectifying Google Earth image using Global Mapper
All right reserved to the author This manual prepared and designed by Youssef Hassan GIS specialist [email protected]
4. Then click file/save/save image then choose premium resolution
Export and Rectifying Google Earth image using Global Mapper
All right reserved to the author This manual prepared and designed by Youssef Hassan GIS specialist [email protected]
5. Name your image and save as jpg format then click save.
And wait until save step is finish
Export and Rectifying Google Earth image using Global Mapper
All right reserved to the author This manual prepared and designed by Youssef Hassan GIS specialist [email protected]
6. Now you don’t need Google Earth again close it and open Global
Mapper software, click file/open data file and open kml file first.
7. Then click configuration tool to choose your projection
Export and Rectifying Google Earth image using Global Mapper
All right reserved to the author This manual prepared and designed by Youssef Hassan GIS specialist [email protected]
After you chossing your projection you can save it to file to be easly loaded again.
Export and Rectifying Google Earth image using Global Mapper
All right reserved to the author This manual prepared and designed by Youssef Hassan GIS specialist [email protected]
8. Then click ok after you choosing the projection, you will found
the program reader coordinates changed to the projection that
you selected.
9. Now you can click open to open the Image that you exported
from Google Earth, select your image then click open.
Export and Rectifying Google Earth image using Global Mapper
All right reserved to the author This manual prepared and designed by Youssef Hassan GIS specialist [email protected]
10. After you click open the programe will give you a massage
that your image didn’t have coordinates and will ask you if you
want to doing rectify so click yes to loggin to rectifying window.
Export and Rectifying Google Earth image using Global Mapper
All right reserved to the author This manual prepared and designed by Youssef Hassan GIS specialist [email protected]
11. The first step in rectifying is to select you projection
Choose UTM projection then click open then click ok.
Export and Rectifying Google Earth image using Global Mapper
All right reserved to the author This manual prepared and designed by Youssef Hassan GIS specialist [email protected]
12. Start your rectifying using the polygon in the right side and
add the 4 control points in the polygon corners with the polygon
drawing in the image like this,
Do this 4 times for the 4 polygon corners.
Export and Rectifying Google Earth image using Global Mapper
All right reserved to the author This manual prepared and designed by Youssef Hassan GIS specialist [email protected]
13. I think this figure explain what I meant in the previous
step.
This is the 4 control points that drawing above have (x, y) pixels, projected UTM
coordinates and lat, long coordinates. Then click Apply and Ok.
Export and Rectifying Google Earth image using Global Mapper
All right reserved to the author This manual prepared and designed by Youssef Hassan GIS specialist [email protected]
14. We will found that the image now have a coordinates and the final step is to export
this image as Geotiff.
Export and Rectifying Google Earth image using Global Mapper
All right reserved to the author This manual prepared and designed by Youssef Hassan GIS specialist [email protected]
15. Export image: File/export raster and elevation data/ export Geotiff.
Export and Rectifying Google Earth image using Global Mapper
All right reserved to the author This manual prepared and designed by Youssef Hassan GIS specialist [email protected]
Draw abox inside the polygon to be the exported area and to avoid appear of the white polygon on the image.
Then click ok
Export and Rectifying Google Earth image using Global Mapper
All right reserved to the author This manual prepared and designed by Youssef Hassan GIS specialist [email protected]
Then click ok in Geotiff export option window, then give it name and click save.
And wait until saving is finished, and now you have a georeference image and you can use it in Arc
programs or MapInfo or any other GIS program.
Export and Rectifying Google Earth image using Global Mapper
All right reserved to the author This manual prepared and designed by Youssef Hassan GIS specialist [email protected]
And now click file / Unload All and then click Open tool and select the Geotiff image and click open.
You will found it has the UTM projection coordinates,,,,,,,,,, Enjoy