Importing an ascii line file – Triton TritonNav User Manual

Page 70

An Example of Survey Planning in DelphNav

Using Delph Nav

CHAPTER 1: Using DelphNav™ (Survey Control Panel) 2004.06.28

Note:

DMP files do not contain the actual data files, just the links to the files used to
display your imagery. Consequently, if you move this project from its present
location/folder you will need to re-import the various files again, thereby updat-
ing the project’s links to the files.

This completes the importation of the DXF coastline file.

Importing an ASCII Line File

This series of tasks implements the general principles documented in ‘Importing

Objects From an ASCII File’ starting on page 22.

To import an ASCII line file

Open the project DMP file.

Assume in this case you have a project called portland.dmp, and it is located in
g:\Portland

. In our example, the previously converted coastline around Portland,

Maine, is displayed. The line file we are going import is called LINES.TXT. The for-
mat of this file is as follows:

ELEMENT 1

xxxxxxx.xxE xxxxxxxx.xxN

ELEMENT 1

is a separator of data. In this case, the two lines that follow are represent

the start and end coordinates of a single line, respectively. To indicate a new survey
line, you would create another separator on its own line of text before introducing the
actual data, like this:

ELEMENT 2

xxxxxxx.xxE xxxxxxxx.xxN

You would repeat this format for each line in your survey.

A complete ASCII file might look like the data depicted in Figure 41.