INTERACTIVE BLOCK CHOICE
This function will make you a god of seismogram
interpretation.
A portion of the CWT is picked using the left button of a mouse
forming a closed polygon on the CWT plane. First press the
green button to start picking. Choose your polygon and
then double click to finish the polygon.
If you want to only include the CWT information within the
polygon, press the orange button. The inverse CWT will be
computed only for the coefficients within the polygon.
If you want to exclude this information, press the yellow
button. The inverse CWT will be computed for all
coefficients outside of the polygon.
Note that large polygons slow down the inclusion or exclusion
process.
Here is an example using the canonical seismogram. The
seismogram has been soft thresholded for noise:
Next a polygon is placed around the energy composing
the fundamental Rayleigh wave. Click with the cursor to
define the polygon and double click on the last point.
Pushing the Include Block button gives this
image:
Now the resulting seismogram, polygon, and CWT can be saved to files
using the File menu.
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