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The Multiple Orbits Window

Figure 2.23: The Multiple Orbits window.
\begin{figure}\centerline{\psfig{figure=ps/multiple.ps,height=203pt}}\end{figure}

Window title:
DsTool: Multiple orbits
Function:
The Multiple Orbits window allows the user to select a set of initial conditions from which to start trajectories.
Description:
The Multiple Orbits window is opened by selecting the Multiple Orbits option from the Panels menu button located in the Command window. The user selects a region of the product of the phase space and parameter space centered about the point specified in the Selected Point window. The user may specify that points be chosen on a regular grid inside the region or only on the boundary. In the former case, a ``box'', including its interior, is selected. The dimension of the box depends on the number of coordinates which have Number of points specified greater than 1. The total number of points will be the product of the values in the Number of points fields. In the latter case, the points will form only the outline of a rectangle in two dimensions. The two dimensions selected will be the first two coordinates in the list with the Number of points specified greater than 1. If there is only one coordinate with Number of points greater than 1, then the a line segment is selected. If all the Number of points fields are set to 1, then only the point specified in the Selected Point window is selected. Each edge of the set of selected points is discretized by the Number of points specified for the associated coordinate, and has length twice the value of the Radius field for that coordinate.

If a transformation other than Identity is selected, then each of these points will be passed through this filter. Transformations may be defined so that these points can be projected onto some submanifold of the whole space or to create arrays of points which are not in the form of a ``box''.

Initial multiple points may also be loaded by using the mouse interface. Dragging the SELECT button while holding down CONTROL in a 2-D View window will draw a rectangle in the viewing canvas. Upon release of the mouse button, a notice will appear allowing the user two choices. The selections are Load IC's and Cancel. If the user selects Load IC's, the appropriate Radius fields on the Multiple Orbits window are changed, and the new initial conditions are loaded. However, no orbits are computed. If the user selects Cancel, no action is taken.

Panel items:

next up previous contents
Next: The Fixed Points Window Up: Attributes of Interface Windows Previous: The Propagation Window   Contents
2010-01-07