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VIEW EDGES [Edge Control]

                

FEMVIEW Command only.

This command allows the user to display element edges of interest, for example those with a specified connectivity, those at a material boundary or those that represent a geometric profile in the model.

The algorithm generally uses a data set in FEMVIEW in which each edge is contained just once and this allows a representation of the model to be drawn quickly.

The default view of a FEMVIEW model when first accessed is VIEW EDGES OUTLINE.


Edge Control Comments
CONNECT n Only those edges that are common to n finite elements
will be drawn. This enables the connectivity of the model
to be examined.
ALL All the edges of the model are displayed with colour coding
to indicate the connectivity of each edge.
OUTLINE The following edges are drawn:
Edges with a connectivity of 1 (ie. edges common to a single
element), and edges that are common to free faces of elements
where these faces have normals that subtend an angle greater
than 35 degrees to each other. This is the default.
MATERIALS This will display the same edges as OUTLINE and
in addition edges that are on a material boundary.

Notes:

1.
Results presentation on EDGE views
Certain techniques for the presentation of results (eg: contours) are unsuitable with VIEW EDGES as they require element data rather that edge data. In these cases an error message will be given.


 
Figure 2.131: Edge View
\begin{figure}
\centerline{
\psfig {figure=diagrams/chap2.view_edges.fig,width=4in}
}\end{figure}

Examples:

1.
VIEW EDGES CONNECT 2

Edges with a connectivity of 2 are drawn.

See also the following commands

'VIEW OPTIONS EDGES '


next up previous contents index
Next: VIEW FACES Side [View_angle] Up: Primary Command VIEW Previous: VIEW DEVEL Mode

Femsys Limited
1st October 1999