Polar Graph Tab
Tkgraph Control Panel -- Polar Graph Tab:
- Select None button
- Clear the current graph selection. Only
graphs which are selected may be modified on
this tab. Selected graphs appear with a grey
background.
- Select One button
- Prepare the page for modifying one graph.
After pressing
this button, the user must left-click on
a graph on the page to select it.
- Select Some button
- Prepare the page for modifying multiple
graphs. After pressing this button, the user
must select one or more graphs for modifying.
Selection is done by either:
Left-clicking on a graph to set it as the
only selected graph
Control-left-clicking on a graph to toggle
it's selection state.
- Select All button
- Select every polar graph on the page.
- Delete button
- Pressing this button will cause the
selected graph to be deleted.
- Raise button
- Sometimes items on the page will be obscured by other
page items. This button will raise the selected graphs
above every other item on the page so they are not obscured.
- Lower button
- Sometimes items on the page obscure other page items.
This button will lower the selected graphs
above every other item on the page so they do not obscure
any other page items.
- Update Values
- Pressing this button will fill in every
entry area below with the values from
the currently selected graph. If more than
one graph is selected, the values from
only one graph are used.
The following is a description of the graph
properties that can be modified in this tab.
Each property is shown as a checkbutton, a label,
and an entry area.
THE CHECKBUTTON MUST BE SELECTED
IN ORDER FOR THE PROPERTY TO BE CHANGED.
The value in the entry area will be used as the new value for that
property.
- Graph Titles
- Title
- The title for the graph.
- Title font
- The font to use for the graph title.
Pressing the button will open up the
font selector dialog
to allow the user to select a font name.
- Subtitle
- The subtitle for the graph.
- Subtitle font
- The font to use for the graph subtitle.
Pressing the button will open up the
font selector dialog
to allow the user to select a font name.
- Graph Coordinates
- Graph Coordinates
- X0 Position
- Setting this will move the center of the graph
to the specified X value.
- Y0 Position
- Setting this will move the center of the graph
to the specified X value.
- Y0 Position
- Setting this will set the radius of the graph to
be the specified value, in pixels.
- Miscellaneous Properties
- Pole Direction
- Direction of the polar origin measured
counterclockwise from 3:00.
- Draw the Axis Cross
- Specifies whether the axis cross (which
also shows the pole direction) should
be drawn. This option is not really needed
because you can turn the axis cross off by
setting it's length to zero. It will be
removed at a later time.
- Draw the Axis Arrow
- Specifies if an arrow should be drawn at
zero degrees.
- Length of Axis
- The radial size of the center cross. Set to
zero to turn off the cross.
- Sense
- The direction of increasing angle.
Positive values indicate a clockwise
direction.
- Radial limit
- The radial value of the outer edge of the phase graph.
This is measured in graph units.