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For general comments on plot navigation, see Appendix A.4.2.1.
Additional configuration options are available in the Navigation
tab of the Axes control.
The navigation options for this window are:
-
Left drag
-
Pan.
In the Sin projection, this attempts to rotate the sphere,
with north staying vertical on the screen, in such a way that the
same part of the sky stays under the cursor position.
At low magnifications this is sometimes not possible;
if the mouse starts on the sphere and ends up off it the navigation
will be jerky.
The Aitoff and Plate Carée projections act like a piece of
paper that can be dragged around in two dimensions in the usual way.
-
Wheel
-
Zoom.
Spinning the mouse wheel forwards/backwards will zoom in/out around
the mouse position. For this Sin projection this will also have the
effect of rotating the sphere to keep North vertical on the screen.
-
Right drag (CTRL-drag)
-
Zoom.
Dragging with the right mouse button up-and-right/down-and-left
has just the same effect as spinning the mouse button forwards/backwards.
-
Left click
-
Select.
If there is a plotted point near the cursor,
it will plot a marker on it and
activate it.
You can also navigate to a known sky position by coordinates or
object name using the FOV
tab of the Axes control.
Next Previous Up Contents
Next: Sky Axes Control
Up: Sky Plot Window
Previous: Sky Plot Window
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
Mailing list:
topcat-user@bristol.ac.uk