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The module 3D data-interpretation
allows the interpretation of 3-dimensional data by displaying x-, y- or
z-slices. The module is useful for the following applications:
GPR (Ground penetrating radar)
reflection seismics
The 3D-data may be easily constructed from equidistant or
non-equidistant 2D-lines either during the import or in a later
stage.
Equidistant: only two parameters must be entered - the
traceincrement within each 2D-line and the distance between each
line. An interpolation filter allows a resampling of the data in the
direction of each line if the number of traces differ in each
2D-line.
Nonequidistant: The profiles can be arbitrarily orientated. The
spatial interpolation ranges can be determined freely.
The data are completely loaded into the RAM of the computer whereby
a fast visualization of the data is possible. |
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The module also allows to load several (up to 25) different
2D-files in order to display them within the different modes.
The scale of the different 2D-files can vary.
Two different display options are available.
Using the option "windows" (see first figure) the slices
are displayed in manually scalable windows. The step and smoothing
rate may be freely chosen.
Using the option "scroll" (see second figure) you may
continuously move through the 3D-cube either in x-, y- or
z-direction using the track bar. Again the step and smoothing rate
is freely choosable.
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The 3D-data can also be displayed within a 3D-CUBE . The
program supports an interactive rotation of the 3D-CUBE. The data
can be viewed from any direction and can be zoomed.
You may select if only the front or back planes of the datacube are
displayed or the full 3D-data volume. In addition you only may
select single cuts and scroll through the cube in one distinct
direction.
With the options front or back activated
only the front or back planes of the datacube are displayed. In
addition you may select a distinct cornerpoint which serves
as the starting point for a cutting out of the cube. |
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With the option single activated you may select any
combination of x-, y- and z-cuts.
With the option scroll activated it is possible to
continuously move through the 3D-CUBE either in x-, y- or
z-direction using the track bar. The step rate is freely
choosable. It is possible to plot a "background" consisting of any
combination of x-, y- and z- cuts in addition. |
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With the option full activated all data of the 3D-cube
are displayed. Shading and hiding are supported. Not visible parts
of profiles are covered. However there is the possibility to "look
through" certain parts of the 3D-data volume, whose amplitude values
are smaller than the given threshold value. With the option
shading activated a special shading algorithm is used in
addition. |
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In addition you may construct single timeslices (C-scans)
from different 2D-lines originating all from one acquisition plane.
Calculation of timeslices: construction of time-constant slices
from a sequence of profiles which are measured in the same plane.
The profiles can be arbitrarily orientated. Alternatively, data
with different geometries sorted after midpoint-coordinates may be
also used for the calculation of the timeslices. The spatial
interpolation ranges can be freely determined. The timeslice is
considered as a simple section - all processing and display
possibilities can be applied on.
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