Gridding Panel

The Gridding panel provides the user with the means to easily split up data on export into a regularly spaced grid if desired, using one of the following options:

• No Grid - This option means that no gridding will be done, only a single file with be exported with the full specified export bounds. This is the default option.
• Specify Number of Rows and Columns - Specifies that the data should be broken up into the given number of rows and columns of tiles. Every tile will have the same width and height unless you check the Crop Right and Bottom Cells to Export Bounds option, in which case the exported tiles along the right and bottom may be slightly smaller than the other so that no data from outside the specified export bounds is used.
• Specify Individual Grid Cell Width and Height - Allows the user to specify the desired width and height in ground units that they wish each grid cell tile to be. Every tile will have that width and height, which means that the right-most column and bottom-most row of tiles could go beyond the specified export bounds. If you specify negative cell width and/or height values, the grid cells will be snapped to the right and/or bottom edge(s) of the export bounds rather than the top left.
• Specify Individual Grid Cell Pixel Size - Allows the user to specify the desired width and height in pixels that they wish each grid cell tile to be. Every tile will have that width and height in pixels, which means that the right-most column and bottom-most row of tiles could go beyond the specified export bounds. This option is not available for vector-based exports since it does not make sense for 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. 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.