Open Printable/Searchable Copy - Global Mapper

Global Mapper User's Manual
those export types.
• Use Selected Area Feature(s) for Grid Cells - This option will export a file for each area feature
selected with the Feature Info or Digitizer Tools. When you select this feature, you will be prompted
to select how to name the files based on each area. You can choose from using the display label of the
area, the filename of the file that the area was loaded from, an attribute value of the area, or just a
simple sequential numbering scheme. You will also be prompted to choose whether each export
should actually be cropped to the polygonal boundary of the area or should just use the rectangular
bounds of the area's boundary. Note that when you select a filename to save to after this, the filename
portion of the selected name will be pre-pended to whatever is used as the grid cell name. So if you
want just your selected item (i.e. attribute, name, etc.) and nothing prepended, only specify a period
and then the extension when selecting the base output filename, like '.jpg' for JPG output.
If the user chooses to breakup the data into a grid, then the options in the Grid Naming section will apply and
allow the user to control how the individual grid tile files are named. The following naming options are
available:
• Sequential Numbering (Row-Major Order) - With this option, a number starting at 1 for the top-left
tile will be appended to the selected export filename. The number will increase across each row.
• Separate Row/Column Letters or Numbers - With this option, separate indicators will be appended to
the selected export filename for the row and column. If letters are selected, the letters A-Z will be
used. If more than 27 letters are needed, multiple letters will be used (e.g. AA, AB, etc.). If numbers
are used, the number values will be pre-pended with zeroes in order to make the numeric values have
the same number of characters for every output tile. If the Reverse checkbox is marked, the order or
the numbers or letters used will be reversed (e.g. if there are 4 rows and numeric naming is selected,
the rows will be named 4, 3, 2, 1 instead of 1, 2, 3, 4). The user also has the option of specifying the
letter/number to start naming at as well as the option to specify a prefix for each column and row
number for each tile and the option to specify by what value numeric names should change by (step)
for each successive row or column. If the Reverse Naming option is checked, the column name will
come before the row name in the export filename, otherwise the row name will be before the column
name. If the Prepend 0 to Numbers to Make Same Length option is checked, the longest number will
be found for both the column and row names and all other column/row names will have 0's prepended
to make them all the same length. The same applies to column/row names using letters if the Prepend
A to Letters to Make Same Length option is checked. If the Create Folders for Each Row (or Col if
Reversed) option is checked, a separate output sub-folder will be created for each row (or column)
that is exported, preventing too many files from being placed in a single folder. The Separate Rows
and Columns with Underscore option causes an underscore to be used to separate row and column
values in the output filenames. If not checked then no separator character will be used.
The Grid Cell Overlap section allows the user to specify that the generated grid cells should overlap each
other by a certain percentage of the cell size. This option is useful for loading the slightly overlapping result
files into something like Photoshop for color matching between cells.
If the Skip Existing Files option is checked, any grid cell file that already exists at the destination location will
be skipped. This makes it easy to resume a cancelled export as the already exported files would not be
re-exported.
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