OOF2: The Manual
| 4.6.9. The Mesh Cross Section Toolbox | ||
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4.6. Toolboxes |  |
The Mesh Cross Section Toolbox is used to create cross sections
within a Mesh. A cross section is a line (or curve, eventually)
drawn in a Mesh along which output values can be computed by the
commands on the Analysis
Page. When the Mesh Cross Section Toolbox is active,
clicking and dragging the mouse on the Canvas will create a new
cross section, as shown in Figure 4.15.
In addition, when a contour plot is displayed on the Canvas, the
Toolbox provides a quick way of evaluating the contoured values
along the cross section.
Figure 4.15. The Mesh Cross Section Toolbox
The Mesh Cross Section Toolbox, on the left, and a Canvas, on the right, while a cross section is being created.
The Toolbox is divided into four regions, as shown in the figure. It may be necessary to resize the Graphics Window to see the whole Toolbox.
The Source region lists the Mesh that's displayed in the Canvas
and says what function is being plotted in the topmost contour
plot Layer.
The Cross Section region allows the user to choose which cross section is current, and to edit the attributes of the current cross section.
The pull-down menu labelled current is used
to select
the current cross section. It contains all of the cross sections
defined on the Mesh, plus the entry
<None>, which deselects all cross
sections. When a new cross section is created by clicking and
dragging the mouse on the Canvas, it becomes the current cross
section. New cross sections are automatically named
cs or cs<x>,
where x is an integer.
The current cross section, if there is one, is displayed on the
Canvas by a predefined MeshCrossSectionDisplay Layer. To
change the display parameters, first enable List
All Layers in the Settings
menu. To turn off the display, it's easier to set the
current cross section to
<None>, rather than to hide the MeshCrossSectionDisplay Layer.
The points menu and associated parameters determines how the cross section will be sampled when the button is pressed. The parameters for the sampling method also determine which auxiliary quantities (position, arc length, etc.) will be output along with the data.
The
button renames the current cross section. If the new name
conflicts with another cross section in the Mesh,
<x> will be appended to it for some
integer x.
The button brings up a dialog box for changing the end points of the current cross section. When OOF2 supports curved cross sections, the dialog will allow the cross section type to be changed as well.
The
button copies the current cross section. It may be copied
either to the current Mesh or to a different one. In either
case, the name of the copy must be unique in the destination
mesh. If it is not, <x> will be
appended to it with an integer x.
Output generally consists of a number of columns of data, preceded by a comment that identifies them. The comment_character box determines how the comment line will be identified. If the data will be input into an external plotting program, set the character to whatever the plotting program expects. Similarly, set the separator to the character that the plotting program uses to delimit columns.
The
button evaluates the output (displayed in the contour
plot) at the sampling points (determined by
points) along the current cross section,
and sends the results to the file selected in the
Destination menu. If
Destination is set to Message
Window, the data is printed there instead.
The Destination menu contains a
New item for adding a new file to the
list, and a Clear item to remove all
files from the list.
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| 4.6. Toolboxes |  |
4.7. The Layer Editor |
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