Batch Convert/Reproject

The Batch Convert/Reproject command allows the user to easily convert multiple files in one format to another format.

When the command is selected, the user is prompted to select the file type to convert from.


Once an input file type is selected, another dialog with a list of all compatible export file types is displayed, allowing the user to select what type of file to convert the input files to.


Finally, after the input and output file types are selected, the Batch Convert dialog (pictured below) is displayed, allowing the user to set up the batch conversion.

Source Files

The Source Files section displays the list of source files currently selected to be converted.

The Add Files... button allows the user to select additional files for conversion

The Add Directory... button allows the user to easily add an entire directory's worth of source files to the to-be-converted list.
All directories under the added one can be recursively searched by answering 'Yes' to the dialog that pops up immediately after selecting the directory.

The Add Loaded Files button causes all files loaded into the main Global Mapper view that match that batch convert input type to be added to the list of files to be converted.

The Add Onscreen Files button causes all files loaded into the main Global Mapper view that are currently at least partially onscreen and that match the batch convert input type to be added to the list of files to be converted.

Destination Files

Directory

The Directory section allows the user to choose where they would like the newly created output files to be created. The Use same directory as file being converted option causes the output file created off of each source file to be created in the same directory as the source file. The Specify output directory option allows the user to choose a specific directory to output all of the newly created output files to.

File Names

The File Names section allows the user to choose whether the newly created output files should have the same file name as the source file they were created from (Use Source File Name option) or whether the more readable quadrangle name (if available) or layer description should be used as the file name for the newly created output file (Use Quad Name or Description option).

The Use Source File Name option can be used to specify an additional text string to append to each new filename to identify it.

Projection

The Projection section allows the user to choose whether or not each newly created output file should either use the same projection as the file that it was created from (Use Source File Projection option) or if each file should use a projection specified by pressing the Projection button.

If the user selects to specify an output projection and they select a zoned projection like UTM or Gauss Krueger, they will have the option on the projection selection dialog to have the best zone for the center of the output map automatically used if they select the Automatically Select Best Zone option in the Zone box on the projection selection dialog.

The Gridding (i.e. Tiling) button displays a dialog allowing the user to specify if and how to break up each file being converted into multiple new files. This option is only available when converting to a raster or gridded elevation format.

The Sample Spacing button displays a dialog allowing the user to choose to either keep the sample spacing of source raster and elevation files when converting the selected or to specify a new sample spacing to resample all of the selected input files at when performing the conversion. This option is only available when converting to a raster or gridded elevation format.

The Horizontal Datum selection allows the user to choose the horizontal datum that each newly created output file should use. By default, each output file will use the same horizontal datum as the source file that it was created off of. Alternately, the user can specify to have all output files created in NAD27, NAD83, WGS72, or WGS84 with the appropriate offset being applied automatically.

The Vertical Units selection is present only for some conversions and controls the output elevation units.

The Palette selection is present only for some conversions and controls the palette, if any, used in the output files. The palette values are defined as follows:

The additional list of options varies depending on the particular conversion being performed. The meaning of those options is defined below:

You can also right click on the list of files to convert and choose to save that list of files to a text file. This can be a convenient way to start a Global Mapper script to do other processing on the files. Other right-click options include the ability to remove all archive files, like .zip and .tar.gz from the list and to fill the source files list with files listed in a text file.