velvet - X11 based Finite ELemenT design and analysis

velvet [-toolkitoption] [-sensitive] [+sensitive] [-numbers] [+numbers] [-nodeColor color] [-elementColor color] [-toolColor color] [-labelFont font] [-toolFont font] [-nocpp] [-cpp filename] [-Dname[=value]] [-Uname] [-Idirectory] [filename]

Velvet is an X11 based finite element design and analysis package based on the felt(1fe) tool and the felt(4fe) input file syntax (velvet is smoother than felt). If filename exists then it will be loaded upon startup. Velvet attempts to locate a saved parameter file upon loading an input file. A saved parameter file has a common prefix with filename but a ".vlv" extension. If filename does not exist or is absent then velvet will start with an empty problem with the appropriate name. Details of the mathematics and user interface can be found in the user's guide.

In addition to any standard toolkit option, velvet accepts the following options:

-sensitive

Enable sensitive/insensitive menu switching. Velvet has two major modes of operation, normal mode and edit mode. Each mode allows only certain operations to be performed. This option allows disabling of the menus controlling the inactive operations. This is the default behavior but may be inappropriate on a slow server. Associated resource: *sensitiveMenus.

+sensitive

Disable sensitive/insensitive menu switching. Associated resource: *sensitiveMenus.

-numbers

Enable node and element numbering. This is the default behavior. Associated resource: *numbers.

+numbers

Disable node and element numbering. Associated resource: *numbers.

-nodeColor color

Sets the color of nodes and node numbers. The default color is "blue". Associated resource: *nodeColor.

-elementColor color

Sets the color of elements and element numbers. The default color is "black". Associated resource: *elementColor.

-toolColor color

Sets the color of tools (rectangles, lines, circles) and interactive windows. The default color is "red". Associated resource: *toolColor.

-labelFont font

Sets the font used for node and element numbers. The default font is "5x8". Associated resource: *labelFont.

-toolFont font

Sets the font used for text drawn using the tools. The default font is "fg-22". Associated resource: *toolFont.

-nocpp

Do not use a preprocessor on the input file.

-cpp filename

Use filename as a preprocessor on the input file. The default preprocessor is "/lib/cpp". Any preprocssor which understands the -D, -U, and -I options can be used as these options are passed to the preprocessor.

In order to specify resources, it is useful to know the hierarchy of the widgets which compose velvet. The application defaults files contain (for the most part) fully qualified resource names and should be consulted if the resources are to be changed.

Velvet was developed by Jason I. Gobat (jgobat@mit.edu) and Darren C. Atkinson (atkinson@ucsd.edu).

corduroy(1), felt(1), burlap(1), felt(4).