The 2-D View window is opened by selecting the 2-D View
option from the Panels menu button located in the Command window.
Unlike the 1-D View window, a 2-D View window can always be opened,
regardless of the number of phase space variables of the system.
The user can select the plotting coordinates from all available
variables, parameters, and auxiliary functions for the current
dynamical system. Additionally, the range of each axis is displayed,
and the size of the window and various other plotting options may be
specified. Multiple 2-D View windows can be open simultaneously,
and each may plot with different coordinates.
When the window is open, data is displayed as it is computed.
When the user resizes the window, the current variable ranges are
maintained, but the scaling is adjusted accordingly.
As the user moves the mouse in the drawing canvas, the current
coordinates
of the mouse position are displayed in the window's
panel. This region is blank when the mouse does not point
into the canvas.
Mouse events in the main drawing canvas have the following
effects:
- The SELECT
button sets the direction of the integrator or iterator to ``forward.'' It
also reads the values indicated by the cursor. If one
or both of these values are variables or
parameters, these values are adjusted in the Selected Point window.
- Dragging the SELECT button while holding down SHIFT creates an elastic rectangle used
to rescale the window. When the user releases SELECT, a notice
appears with the options to enlarge the
view (the default, also known as ``zoom in''),
shrink the view (also known as ``zoom out''),
or cancel the selection. If the enlarge option is selected, the scaling is
adjusted so that the selected region fills the canvas. If the
shrink option is selected, the view is rescaled so that
the whole view is put into the selected rectangle. The
values in the ordinate and abscissa Min and Max text fields
are updated automatically and a screen refresh is performed.
- Dragging the SELECT button while holding down CONTROL creates an elastic
rectangle used to input a region for the Multiple Orbits window. See
Section 2.22 for details on this operation.
- The MENU button
sets the direction of the integrator or iterator to ``backward.'' It
also reads the values indicated by the cursor. If one
or both of these values are variables or
parameters, these values are adjusted in the Selected Point window.
- Clicking the ADJUST button is equivalent to selecting
the Continue button on the Orbits window.