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SurView TutorialFlight lines (SLD files) |
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There are 3 distinct views that can be obtained from an SLD (Survey Line Data) file:
![]() flight lines |
![]() profile map |
![]() stacked profiles |
Each of these types of displays of SLD data has specific attributes
for it, as described below.
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![]() flight line attributes |
![]() flight line options |
A variety of flight line options can be selected using the Options | Flight lines dialog box:
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![]() profile map |
A profile map is a 2D map that is a combination of a flight map
and a stacked profile display. In effect, the profile data for the
variable is 'flopped over' on its side so it is drawn in the plane
of the map. This type of map is useful for electrical and magnetic
data and shows the crossovers and peaks very well. It is less useful for
airborne gamma-ray spectrometry, which is noisier and which exhibits less
peak correlation between adjacent lines.
![]() flight line & profile map attributes |
In addition to line colour & style, the scale factors can be adjusted for each variable being plotted as a profile map.
The lines selected for drawing the profile map follow the
same rules currently in effect for drawing flight lines (forward/reverse,
odd/even, etc).
![]() profile map filters |
The data used for the profile map can be filtered to
enhance the display.
![]() flight map with symbols |
![]() SLD symbol attributes |
Select the variables for which symbols are to be drawn,
and set the symbol type & colours.
![]() SLD symbol scale factors |
Then select Scale to set the scale factors.
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![]() select a flight line from the list |
There are 2 ways to select a flight line for which to view stacked profile data:
![]() stacked profiles |
For each flight line selected, a new window will be created to show
the stacked profile data for that line. The stacked profile window
has a different set of menu options than the map window, to access
the unique attributes of the stacked profile display.
![]() stacked profile attributes |
There is a separate set of scale factors, line colours & styles for the
stacked profile data.
![]() filters & drawing modes |
A separate set of filters and plotting methods can be applied
to the stacked profile data.
![]() axes attributes |
The colours & styles of the stacked profile axes and labels can also
be changed.
![]() order of variables |
The drawing order (top to bottom) of the variables in the stacked profile
display can be changed and the graphs of 1 or more variables can be superimposed.
![]() superimposed variables |
The stacked profile method of displaying several variables, coupled with these display attributes provides a very powerful tool for correlating data sets consisting of several variables.
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