Oziexplorer set projection
#Oziexplorer set projection how to
I will not explain in detail how to do this, because there are many programs available, such as: If you do not know the geographical extents, In general, the datum and projection are shown in the legend text of paper maps. either the coordinates of the upper left corner and of the lower right corner.either the coordinates of the upper left corner and the pixels sizes.See,įor example, screenshots some of which were produced with samples of IGN maps.īefore you start converting the maps to ECW format, you must make sure they are calibrated (georeferenced), therefore you need to know: It is therefore possible to directly use the files from IGN. It is a format chosen by the IGN to deliver maps and aerial photographs. Ability to decompress a portion of the image without decompressing the entire file.Rapid access to image file, at any zoom level.Excellent lossless compression ratio, better then that of JPEG.Why use such a choice? This format has many advantages for mapping applications: The format that was chosen for ttMaps is the ECW format, developed by the company Er Mapper, recently acquired by ERDAS. Of maps on CDROM impose very restrictive licenses, such as the ban on the use of maps with other software than Installation User manual Tracks Routes POI FAQ Customization Projections and datums Forums Known bugs Map Conversion How-To Libraries Changelog Links Help this project Contact Credits Conversion and georeferencing of maps for ttMaps Disclaimerīefore using a map with ttMaps, make sure you have the right! Some publishers of paper maps prohibit you to scan them, and vendors