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SurView TutorialFile Display List |
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Complete detailed descriptions (for the curious) of all SurView file formats are contained in surview.hlp file, accessible from SurView's Help menu. Some of the principal file types are:
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The File Display List dialog box is used instead of the traditional File | Open/Close menu items. It can be accessed identically by either the File | File Display List or Edit | Map layers (order, visibility)... menu items.
The filenames are displayed in a list, as layers, according to their position in the Z order. The file at the bottom of the list is drawn first. The file at the top of the list is drawn last, on top of all of the other layers. The visibility of the file is indicated by the checkbox on the left of each file entry - if not checked, the file is not drawn.
This dialog box allows the current list of files to be managed:
You can also add files to the File Display List by dropping them onto the File Display List dialog box.
Once the File Association has been setup, SurView can be activated by:
Select 1 or more files and click Remove to remove the
files from the list.
Instead of removing a file from the File Display List, if you just
want to suppress drawing of a file (layer) temporarily, you can use
the Show/Hide button to change the visibility of the layer.
Select 1 or more files and use the Show/Hide button to toggle
the visibility of the selected files.
![]() select the files... |
![]() ...and toggle the visibility |
By default, all files added to the File Display List are enabled
for plotting. FDL files can contain special flags (as the data
preparer wishes) that suppress the visibility of a file, even
though it is added to the File Display List.
This is equivalent to selecting all of the files and clicking Remove.
This allows you to save the current list of files as an .FDL file. It
does NOT save any of the files or attributes of the files, just the
list of files in the current order. Visibility is not saved.
There are 3 modes in which the filenames can be listed
in the dialog box:
Successive clicking of the Details button cycles
through the 3 display modes.
You can change the order of the files by selecting 1 or more
files and then clicking Up to move the files closer
to the surface (drawn later) or Down to move the files
down in the Z order (drawn earlier). Multiple files can only
be moved if the selected files are contiguous as the appear
in the list.
![]() select the files... |
![]() ...and move up/down |
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