XY Harris Multilayer

Global Mapper v18.1 and later support export of XY Harris Multilayer files. The option is available in the File Export menu under Raster/Image Formats.

The Export XY Harris Multilayer Text File command allows the user to export any loaded data sets to a comma-delimited ASCII file containing color or elevation data for each loaded raster layer.

The first line of the file is a header defined as follows:

X, Y, Longitude, Latitude, <raster file name 1>_R, <raster filename 1>_G, <raster filename 1>_B,..., <raster filename n>_R, <raster filename n>_G, <raster filename n>_B, <elevation filename 1>, ..., <elevation filename n>

<raster filename n> will be replaced with the full path and file name of the raster file that is the source of the color data in the corresponding column.

<elevation filename n> will be replaced with the full path and file name of the elevation values in the corresponding column.

Each valid sample will be represented on a single line as follows:


When selected, the command displays the XY Harris Multilayer Export Options dialog which allows the user to set up the export.

General Options

The General options panel allows the user to set up the Sample Spacing, Metadata File Formats and Resampling options.

Sample Spacing

The Sample Spacing section allows the user to select the grid spacing to use when generating the file. The default value is the average of the grid spacings of all the currently loaded raster and elevation overlays.

If the Always Generate Square Pixels option is checked, the smaller of the specified x and y resolutions will be used for both the x and y resolution.

Selecting Always Generate Square Pixels ensures that the resultant image file will look good even in software that is not able to deal with pixels that aren't square.

To specify the spacing in units other than those of the currently selected view/ export projection, press the Click Here to Calculate Spacing in Other Units button.

Metadata File Formats to Generate

Choose from the following Metadata file formats:



Split into Separate Files

Choose to split the output into separate files by putting a check next to "Split Into Separate Files Every", and indicating the maximum number of lines that will be in each file. The header will be written as the first line in each file.

Use 'No Data' Value

By default, if there is no data at a location, there will be no data written in the associated column. To specify a value to be written to the file in this case, check the box next to Use 'No Data' Value, and type the value to use in the associated input field.

Tiling Panel

Export Bounds