[PATCH] Improvements to gdaltindex

[Even Rouault]

This patch adds the following enhancements to gdaltindex :

• add new option : [-write_absolute_path] : write the full path name of the files added in the tileindex. It is usefull as, currently, one often generate the tileindex by mentionning files with relative paths but one uses it from other directories afterwards and it doesn't work.
• add new option : [-skip_different_projection] : tileindex referencing products with different projection system are pretty useless in general, in particular for use in mapserver. This flag doesn't add files with a projection system different from the one of files already in the tileindex. If this option is not specified, a warning will be emitted anyway.
• checks whether the files that should be added in the tileindex are not already in. If it is the case, a warning is emitted and no new entry is created for the duplicated file.

[warmerdam]

Even,

Go ahead with this change. Note that documentation changes belong in gdal/doc/gdal_utilities.dox from which the man pages are built, not in the man pages themselves.

[Even Rouault]

Commited in trunk in r11942

[Even Rouault]

Same improvements for ogrtindex; See attached patch

[warmerdam]

looks good...

[Even Rouault]

gdal_svn_ogrtindex_improvements.patch commited in trunk in r11968