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A.2.3 Toolbar Buttons

There are a number of buttons on the Control Window's toolbar; these are the most convenient way of invoking most of TOPCAT's functions. They are grouped as follows:

Import and export
Load Table
Pops up the Load Table dialogue which allows you to load a table into TOPCAT. If a table is loaded it becomes the new current table.
Save Table
Pops up the Save Table dialogue which allows you to write out the current Apparent Table.
Duplicate Table
Adds a new copy of the current Apparent Table to the list of known tables. This is like loading in the current table again, except that its apparent characteristics become the basic characteristics of the copied one, so for instance whatever is the current row order becomes the natural order of the new one.
Broadcast Table
Broadcasts the current Apparent Table to any applications registered using the PLASTIC protocol. See Section 8.
Send Table
Sends the current Apparent Table to a single selected application registered using the PLASTIC protocol. See Section 8.
Table views (see Appendix A.3)
Data Window
Displays the table rows and columns in a scrollable viewer so you can see the cell contents themselves.
Parameters Window
Displays table "parameters", that is metadata which applies to the whole table.
Columns Window
Displays metadata about each column such as data type, units, description, UCDs etc.
Subsets Window
Displays the currently defined row subsets and enables new ones to be defined.
Statistics Window
Displays a window for calculating statistical quantities for the values in each column of the table.
Graphics windows
Histogram
Displays a window for plotting 1-d histograms.
2d Scatter Plot
Displays a window for plotting 2-d scatter plots.
3D Scatter Plot
Displays a window for plotting 3-d scatter plots on Cartesian axes.
Spherical Scatter Plot
Displays a window for plotting 3-d scatter plots on spherical polar axes, with or without a radial coordinate.
Stacked Line Plot
Displays a window for plotting multiple stacked line plots against a single X coordinate
Density Map
Displays a window for plotting 2-d density maps (image-like histograms on a 2-d grid of bins).
Matching and joining (see Section 5)
Concatenation Window
Displays a dialog for joining tables top-to-bottom.
Internal Match Window
Displays a dialog for finding internal matches between the rows of a table.
Pair Match Window
Displays a dialog for joining tables side-by-side by locating rows which match between them.
Note that matches involving more than two tables can be done using the options in the Joins menu.
Miscellaneous
Available Functions
Displays a window containing all the functions which can be used for writing algebraic expressions (see Section 6).
Help
Displays the help browser, open at the entry on the Control Window.
Exit
Queries for confirmation, then exits the application.


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TOPCAT - Tool for OPerations on Catalogues And Tables
Starlink User Note253
TOPCAT web page: http://www.starlink.ac.uk/topcat/
Author email: m.b.taylor@bristol.ac.uk