RESULTS RANGE Limit [Control]

                                 

This command is used to specify range controls (or filters) on the result values that will be considered for display when presenting results. Note that certain filters are not general in their effect and are for use only with specific results presentations.

Limit Control Values considered for display

SET Set-name(s) Values at elements and nodes in the

ALL named sets where these form part of the current model set (see note 1).

MATERIAL Material Number Values for the specified material

ALL or `ALL' materials. (see note 2).

SURFACE Surface Number(s) Values for the specified surface(s)

TOP or `ALL' surfaces. (see note 3). MIDDLE BOTTOM ALL

VALUES OFF The control is turned off and defaults will apply (see note 4).

MINMAX Min. and max. values only.

ABOVE v1 [BELOW v2] Values equal to or above or below the

BELOW v1 [ABOVE v2] specified thresholds are used. If both ABOVE andBELOW thresholds are specified then only one threshold test need be satisfied for the value to be used (i.e the test is a logical .OR. not a logical .AND.)

BETWEEN v1 v2 Values equal to or between the thresholds are used.

EL-RESULT ALL All values for each element.

MAX [ABSOLUTE] The [absolute] maximum value for each element.

MIN [ABSOLUTE] The [absolute] minimum value for each element.

MEAN The mean of all values for each element.

POINT-ID n The nth value for each element. See note 5 for more details on the RESULTS RANGE EL-RESULT command.

LOCAL The min. and max. values used will refer to the current results set (see note 1) and this is generally the default.

[XSECTION] The XSECTION option is used to refer min. and max. values to the current cross section.

Limit Control Values considered for display

LOCAL [LINE] The LINE option is used to refer min. and max. values to the current line and this is the default with VIEW LINE.

GLOBAL --- The min. and max. values used will refer to the whole model even if a results set is current.

OFF --- Cancels the current range controls.

Notes:

1.

The SET control
The command RESULTS RANGE SET set-names(s) allows the user to specify sets of elements or nodes for which results will be displayed; the 'results set'. Up to 10 previously defined sets may be specified to form the current results set (see: CONSTRUCT SET) but all must be of a consistent type, i.e all node sets or all element sets. Note that the node representation of an element set is all the nodes that define the elements in the set and the element representation of a node set is all elements that have any node in the node set. Only result values at elements and nodes in the current results set are considered for presentation. Note that the results set is subservient to the current model set, so elements or nodes in the results set that do not exist in the current model set will be ignored.

The minimum and maximum values thus found for the results set are displayed in the results monitor next to the `MIN' and `MAX' keywords. The exception to this rule is that the command RESULTS RANGE GLOBAL will cause the calculation of maximum and minimum values to refer to the whole model rather than the results set. Note that the maximum and minimum values will refer to the current surface as specified in the RESULTS RANGE SURFACE command.

Note that the command PRESENT NUMERICS allows the user to explicitly specify a range of elements or nodes for which result values are required (eg: PRESENT NUMERIC 95 TO 100). In this case result values will be displayed regardless of whether the specified elements or nodes are in the current results set. The current results set will remain unchanged and the maximum and minimum values displayed in the results monitor will still refer to the results set.

The default results set is the current model set. The command RESULTS RANGE SET ALL causes the results set to be equated to the current model set.

2.

The `MATERIAL' control
The MATERIAL control may be used when plotting graphs of material related results in order to specify that values for a particular material or ALL materials are to be graphed. It can also be used when specifying a datum (eg: RESULTS TRANSFORM RELATIVE) to be applied to nodal material related results.

If a filter on material number is required for other result presentation modes, then a set containing elements of the required material should be created using CONSTRUCT SET and applied as a results set using RESULTS RANGE SET.

3.

The `SURFACE' control
A single surface, a selection of surfaces, or all surfaces may be specified, and lines for each will be shown on any graph subsequently plotted. However, for other results presentation modes values for only one surface can be displayed at a time, and these will be for the first of the specified surfaces. If no surface has been specified then the default is the first surface.

The surface controls will select results according to the order in which the results were input into FEMVIEW for a particular node or element. That is, RESULTS RANGE SURFACE 2 will select the results for the second surface. The control TOP will select results for the first surface and BOTTOM for the last surface. MIDDLE will select results for the middle surface if results for an odd number of surfaces have been input but will make no selection if results for an even number of surfaces have been input.

If results are not multi-surface, then the controls TOP, MIDDLE and BOTTOM will be ignored and results for the first surface (the only results available) will be selected.

Note however, that surface selection by number, eg: RESULTS RANGE SURFACE n, has no default condition and will cause an error message if results for the specified surface do not exist.

4.

The `VALUES' control
The `VALUES' control only effects the `PRESENT PEAKS', `UTILITY TABULATE RESULTS', 'PRESENT VECTORS' and `PRESENT NUMERICS' presentation modes. For `PRESENT PEAKS' the control `VALUES OFF' is equivalent to `MINMAX'.

5.

The `EL-RESULT' control
This range control may be used with results presentation modes where one representative value for each element is taken, to specify how this value is to be obtained. When presenting contour plots it has the same effect as the PRESENT OPTIONS CONTOUR FILL/EDGES ALL/MAX/MIN/MEAN/POINT-ID command. When using PRESENT GRAPH ELEMENT or PRESENT GRAPH LINE along an element line it controls the value that is plotted by default for each element. In this case the control `ALL' is taken as `MEAN'. If the control `POINT-ID ' is selected then the integer entered specifies which value to take. For example, if `POINT-ID 3' is specified then for elementwise nodal results the value for the third node (according to the element topology) is taken and for elementwise Gaussian results the value for the third Gauss point (according to the order entered into FEMVIEW) is taken. The `EL-RESULT' control has no effect on the value taken for elementwise invariant results, as there is only one value for each element anyway.

Examples:

1.

RESULTS RANGE SET WING BODY WHEEL

Elements in the previously defined sets `WING', `BODY' and `WHEEL' will (if part of the current model set) form the current results set.

2.

RESULTS RANGE SURFACE 2 4

Values for surface numbers 2 and 4 will be plotted on a graph, but for all other modes of results presentation only values for surface 2 will be considered for results display.

3.

RESULTS RANGE VALUES ABOVE 3.5

Values above 3.5 will be considered for results display.

See also the following commands

'CONSTRUCT SET'