The ASCII Export option in the Profile window pop-up menu allows you to export profile lines to ASCII files.
To export to ASCII:
Right-click the Profile graph in the Profile window.
Select the ASCII Export command.
The Export Profile to ASCII dialog box is displayed.
You have the option of exporting the profile to a single file or to multiple files. Multiple files is relevant if you have more than one profile line populated in the Profile window. When using the Multiple Files option, an ASCII file is created for each line.
The ASCII files will be named according to the surface and layer names when exporting to multiple files. If exporting to a single file, you can specify a name for the resulting file.
Select the Single File or Multiple Files output option.
Click Browse (...) for the selected option.
For a single file, enter a name and a location for the file. For multiple files, select the output folder.
You have the option of including a prefix in the file names if exporting to multiple files. The format of the filename with this option enabled is:
Prefix-SurfaceName - LayerName.txt
[Optional] Enter a Filename Prefix to add to each file name.
You can choose the Coordinate system, Units and Precision to use for exporting the values in the profile. The Geographic (Lat/Lon) - WGS84 coordinate system is selected by default because, regardless of the coordinate system of the source of the profile, the vector line profile is stored as unprojected.
Distances measured on the ellipsoid (for example, if Geographic (Lat/Lon) WG84 is selected as the coordinate output system) will not be the same as planemetric distances calculated on a projected surface. This could result in a mismatch between the distance specified for the step size interval and the actual distance reported in the ASCII text file.
If the value in the Coordinate system field is changed, the selected setting will be stored and recalled for use the next time the export command is used.
If a projection other than Geographic (Lat/Lon) is selected for the Coordinate System, Ground is provided as an option under Units. If Units is set to Ground, the Order options will change to X/Y (Northings/Eastings).
Click Browse (...) to select the output coordinate system.
Select an option from the Units list.
Select a Precision value to define the number of decimal places to include in the exported values.
You can also specify the order of the coordinate columns in the resulting file.
Choose the column Order from the list.
The resulting ASCII file will contain elevation values at specific points along the profile and the locations of those points.
Depending on the Output type selected, the locations may be reported as distances from the start of the profile (metres, feet, etc.) or geographic coordinates.
Select an Output type option.
If exporting distances, you can also define the number of decimal places to include in distance values.
Select a Precision value for the Distances field.
You have the option of exporting all control points in the profile, or a sampling of points.
The Control points option exports the points that were digitized to create the profile line.
The Sampled points option selects points at a specified interval and exports the values at those locations.
Select a Point sampling option.
[Optional] If exporting sampled points, enter a value for the Interval between points, if different than the default.
The Interval setting defaults to the Sample step size setting of the profile graph, but you can export sampled points at a different interval if desired.
The profile was created using attribute values from the selected source layer. These attribute values will be included in the export. You can define the precision for these values as well as the Z-axis convention to use in the output.
Select a Precision value to define the number of decimal places to include in attribute values.
Select the Z-axis convention to use in the exported values.
Click OK to perform the export.
The data in the Profile window is exported. Header information will be included in the file with the following details:
The name of the profile line.
The coordinate projection of the data.
The unit of measure for the attribute values.
The Z-axis convention of the data.
The unit of measure for distance values.
The start and end coordinates of the profile line.
The headings for the column order.