TSG New Functions
March and July 2008
A series
of new functions were posted up on the web site in March 2008, and we
now have some additional functions added this month. These
functions will be added to the TSG User manual (accessed via the Help
menu in TSG) in the next TSG Update, and are also noted below for users
to understand the ongoing functionality enhancements in the development
of TSG. If you have any questions please dont hesitate to
contact us.
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July 2008 Update
Correction to spectralon for ASD spectra
(new to all TSG options)
There is now an option in the final page of the TSG file creation wizard
called "Final correction spectrum" that allows you to choose an absolute
reflectance spectrum of spectralon for your ASD spectra. Recommended for
all ASD spectra (i.e. from Labspec, Fieldspec or Terraspecs), but NOT
for any other spectrometers unless they also calibrate on spectralon.
Floater
Aux match settings (new to all TSG options):
Users can now set up
the floater aux match settings in the Settings panel (under the Edit
menu) to be the same as the settings in an Aux match scalar. This
means that the floater can display exactly the same matches to the Aux
match scalar output and users can then compare the matched spectra to
directly assess goodness of fit. For example AusSpec's
GESSL library spectra can
be attached as an aux file and then overlaid with your project spectra
to compare the output of the matched GESSL mineral assemblage classes.
Aux
match noise threshold option
(new to all TSG options):
TSG users can now specify a noise threshold which clips noisy parts of
the spectrum to remove particularly noisy sections in the matching
process.
Merge
TSG files
(new to TSG Core):
Users can now combine a series of TSG
files along with their scalars to create a *single* TSG file.
This offers fantastic flexibility!
Grid option in
scatter screen
(new to TSG Core):
As well as the existing scatterplot and
histogram plot options in the scatter screen, users now can grid a
scatterplot to create a plot of point density in the scatterplot.
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March 2008 Update (how to use these functions is
listed below)
TSG
Scalar Groups (new to all TSG options):
o
TSG now
has a “Groups” structure for scalars, similar to the way that files are
organised in folders. This is a useful way of organising and finding
your ever growing list of scalars.
o
“Scalar
Names and Groups” dialogue: This dialogue allows you to organise
existing scalars into different groups if necessary. You can also edit
their names if you are not happy with the original name.
o
All
existing TSG files will be automatically organised into the scalar group
structure. You can then move the scalars around to more appropriate
groups if necessary.
o
New
scalars can be assigned to a group selected by the user.
Log
screen class edit (new to TSG Pro):
o
All
class scalars can be edited in the Log Screen now as well as in the
Scatter Screen.
o
This
makes editing any Aux match outputs, such as the GESSL results, or other
(perhaps imported) class data easy. It is possible to select a series of
samples and assign them to another class item, or create a new class
item to assign them to.
TSA
Allowed Mixtures (new to TSG Pro and Core):
o
This is
a setting that allows you to set which minerals you want active in the
TSA results and also which minerals are acceptable to occur with each
other.
o
For
example you may wish to disallow co-occurrence of illite with muscovite,
or switch off opal from all outputs. TSA would then display the next
nearest fit.
VLines
(new to TSG Pro and Lite):
o
it is
now possible to label diagnostic absorption features on the Spectrum and
Floater screens to highlight them as you scroll through a series of
spectra.
o
You can
also create a small txt template file of the line positions for a
particular mineral phase.
Metadata (new to all TSG options):
o
This
option is a precursor to the future data basing capabilities of TSG and
allows you to enter details of the project area and drill holes
represented in your TSG file.
Class
Scalar Description field (new to all TSG options):
o
Each
class-item name can now be accompanied by a description.
White
background for screen displays (new to all TSG options):
o
The
traditional black screen background can be changed to white now if you
prefer.
Linescan colour correction (new to TSG Core):
o
This option allows you to apply a colour stretch to all the
linescan data in a HyLogging (HyLogger and HyChip data set).
Masking in the Interactive Depth editor (new
to TSG Core):
o
This
is a new option in the Interactive Depth Editing function (used in the
Tray Screen for manually correcting core depths in HyLogging data sets)
whereby the ITDL scalar can be used as a template for creating a Mask
scalar of tray edges and wood blocks. This mask can then be applied to
all scalars in the TSG file to null out non-core material.
Floater co-occurrence mode (new
to TSG Core):
o A new mode in the floater to allow the user to explore the
co-occurrence of two class scalars, including the TSA scalar results.
Plots the results in a co-occurrence matrix plot.
Tray Screen
(new to TSG Core):
o
Easy scrolling through core tray images in the Tray screen,
there are a number of little arrow buttons to allow you to move between
the tray images more easily.
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How to use the
New TSG functions |
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1. TSG Scalar
Groups:
Where
you see this and how to use it….
-
In the New
Scalar dialogue (in the Edit
menu) you can select the
group to assign the new
scalar to, this is a new
field below the “Slot”
field. If you don’t select
a group TSG will
automatically assign the
scalar to a group it thinks
appropriate.
-
In the Scalar
Items list, all scalars will
be assigned to a group
either automatically or by
the user. Right click for a
pop up menu with some
sorting options as well.
-
As a new
entry in the Edit menu
select “Scalar Names and
Groups….” This dialogue will
allow you to drag and drop
scalars into new groups,
rename the scalars (double
click on the existing name)
and also see some details of
the new scalars.
2. Log screen
class edit:
Where you see
this and how to use it….
-
In the Log
Screen, click the right hand
mouse button to get the pop
up menu, there is a new
entry called “Class Browse
Edit…”
-
Under the
Edit menu there is also an
entry for “Class Browse
Edit…”
-
The Log
screen’s class editing tool
allows you to edit the
entries in a user class
scalar or to populate a new
user class scalar with your
own defined classes. It is
totally interactive and
allows you to select
individual spectra or
intervals of spectra and
assign them to your own
class.
-
A User Class
scalar can be created using
the New scalar... option
under the Edit menu, and can
either be blank (i.e. with
no entries, ready for adding
your own classes) or created
as a copy of another class
scalar (e.g., one of the TSA
classes). Alternatively,
you can get a user-class
scalar by importing
alphanumeric data from a
spreadsheet using one of
TSG's import-scalar
methods. Such a scalar will
already contain class
entries from the external
data. Once the Class Scalar
exists, it can be
interactively edited in the
Log screen.
1.
TSA allowed
minerals and mixtures:
Where you see
this and how to use it….
-
File menu >
Settings then select the TSA
tab, and “Allowed Minerals
and Mixtures” button.
-
This will
display a matrix with the
TSA minerals along the x and
y axes and mixtures of two
minerals represented by
boxes within the matrix.
-
To deselect a
mineral click on its bright
green box along the y axis
which will turn it off in
all TSA matches, leaving a
grey cross on the matrix.
-
To deselect a
particular co-occurrence of
two minerals click on one of
the boxes in the middle of
the matrix where the two
minerals occur together. A
red/pinkish box represents
where a mineral or mineral
mixture is deselected.
2.
VLines:
Where you see
this and how to use it….
-
Spectrum
screen: at the top of the
screen there is a new VLines
button, click this to open
the dialogue.
-
In the
floater screen there is a
VLines entry in the View
menu.
-
Enable the
different lines, and place
them either by entering the
actual wavelength or by
moving them via the slider
bar. You can also label the
wavelength move the label up
or down and also change the
colour of the Vline and
label so they are not too
intrusive.
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