*Snapshot

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*Snapshot

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Purpose

To request the creation of snapshot plots.

Theory

Refer to Database Postprocessing for further information on this feature.

Keyword Format

Blocks of lines repeated as often as necessary. Each block begins with a line defining the type of snapshot. This is followed by lines requesting the actual snapshot plots.

Block requesting motion snapshots. Lines 2 and 3 can be repeated as often as necessary. Line 3 is optional.

TYPE=MOTION [, SET=Set Name]

DOF, Time [, Scale] [, UNITS=Unit]

[TITLE=Figure Title]

Block requesting force snapshots. Lines 2 and 3 can be repeated as often as necessary. Line 3 is optional.

TYPE=FORCE [, SET=Set Name]

Variable, Time [, Scale] [, LOCATION=Location] [, UNITS=Unit]

[TITLE=Figure Title]

Refer to Force Variable Input for further information on acceptable Variable values. Refer to Location Parameter Input for further information on the significance of the Location input.

Block requesting structure snapshots. Lines 2 and 3 can be repeated as often as necessary. Line 3 is optional.

TYPE=STRUCTURE [, SET=Set Name]

Time [, Scale] [, Viewpoint X] [, Viewpoint Y] [, Viewpoint Z] [, UNITS=Unit]

[TITLE=Figure Title]

Block requesting snapshot of seabed clearance. Lines 2 and 3 can be repeated as often as necessary. Line 3 is optional.

TYPE=SEABED [, SET=Set Name]

Time [, Scale] [, UNITS=Unit]

[TITLE=Figure Title]

Set Name defaults to all elements (set ALL). Scale defaults to 1. The Unit entry defaults to base units. Figure Title defaults to blank.

SNAPSHOT - motion

Purpose

To request a plot of the distribution of motion in one of the global DOFs at a particular solution time.

Table Input

Input:

Description

DOF:

The global degree of freedom (DOF) for which the snapshot is required. Specify a value of 1 for the global X-direction, 2 for the global Y-direction, or 3 for the global Z-direction; 4, 5 or 6 for the components of the rotation vector in the global X, Y and Z axes respectively;  or 7 for the magnitude of 4, 5, and 6.

Time:

The analysis time at which the snapshot is required. See Note (a).

Title:

A descriptive title to be associated with the output. This entry is optional.

Scale:

A scale factor to apply to the data. This entry is optional, and defaults to a value of 1.

Unit:

The units to be used for the vertical axis of the plot. This entry is optional, and defaults to the base units for this output type. See Note (b).

Element Set:

The element set for which the snapshot is to be produced. All plots are produced by default for all elements of the structure which corresponds to the element set All.

Notes

(a)When you specify a time value in the second column, Flexcom searches the analysis database for the solution time nearest to the value you input. For a snapshot at the analysis finish time, specify a time which is greater than the finish time you specified.

(b)The units entry explicitly specifies what units are to be assigned to the vertical axis of the plot. This entry is optional, and if omitted, Flexcom simply assigns suitable units depending on the base units for the particular output type. If you do explicitly specify a unit, then it must be consistent with the dimension of the output type. For example, force can be specified in Newtons, Kips etc. The program is quite flexible in terms of accepting unit descriptions – e.g. Newtons, Newton, N etc. are all equally valid. For a list of the units accepted by Flexcom, refer to Units Reference Guide.

SNAPSHOT - force

Purpose

To request a plot of the distribution of a restoring force at a particular solution time.

Table Input

Input:

Description

Variable:

This list allows you to select a relevant output parameter. The entries are largely self-explanatory. See Note (a).

Time:

The analysis time at which the snapshot is required. See Note (b).

Title:

A descriptive title to be associated with the output. This entry is optional. 

Scale:

A scale factor to apply to the data. This entry is optional, and defaults to a value of 1.

Element Set:

The element set for which the plot is to be produced. All plots are produced by default for all elements of the structure, which corresponds to the element set All.

Location:         

This parameter identifies the circumferential or radial location on the element. See Note (c).

Unit:

The units to be used for the vertical axis of the plot. This entry is optional, and defaults to the base units for this output type. See Note (d).

Notes

(a)Refer to Force Variable Input for further information on acceptable Variable values.

(b)When you specify a time value, Flexcom searches the analysis database for the solution time nearest to the value you input. For a snapshot at the analysis finish time, specify a time which is greater than the finish time you specified.

(c)Refer to Location Parameter Input for further information on the significance of the Location input.

(d)The units entry explicitly specifies what units are to be assigned to the vertical axis of the plot. This entry is optional, and if omitted, Flexcom simply assigns suitable units depending on the base units for the particular output type. If you do explicitly specify a unit, then it must be consistent with the dimension of the output type. For example, force can be specified in Newtons, Kips etc. The program is quite flexible in terms of accepting unit descriptions – e.g. Newtons, Newton, N etc. are all equally valid. For a list of the units accepted by Flexcom, refer to Units Reference Guide.

SNAPSHOT - structure

Purpose

To request a structure geometry plot at a particular solution time.

Table Input

Input:

Description

Time:

The analysis time at which the snapshot is required. See Note (a).

Title:

A descriptive title to be associated with the output. This entry is optional. 

Viewpoint X

The X component of the viewpoint vector. This entry is optional, and defaults to a value of 0.

Viewpoint Y

The Y component of the viewpoint vector. This entry is optional, and defaults to a value of 0.

Viewpoint Z

The Z component of the viewpoint vector. This entry is optional, and defaults to a value of 1.

Scale:

A scale factor to apply to the data. This entry is optional, and defaults to a value of 1.

Element Set:

The element set for which the plot is to be produced. All plots are produced by default for all elements of the structure, which corresponds to the element set All.

Unit:

The units to be used for the vertical axis of the plot. This entry is optional, and defaults to the base units for this output type. See Note (b).

Notes

(a)When you specify a time value, Flexcom searches the analysis database for the solution time nearest to the value you input. For a snapshot at the analysis finish time, specify a time which is greater than the finish time you specified.

(b)The units entry explicitly specifies what units are to be assigned to the vertical axis of the plot. This entry is optional, and if omitted, Flexcom simply assigns suitable units depending on the base units for the particular output type. If you do explicitly specify a unit, then it must be consistent with the dimension of the output type. For example, force can be specified in Newtons, Kips etc. The program is quite flexible in terms of accepting unit descriptions – e.g. Newtons, Newton, N etc. are all equally valid. For a list of the units accepted by Flexcom, refer to Units Reference Guide.

SNAPSHOT - Seabed clearance

Purpose

To request a plot of the seabed clearance at a particular solution time.

Table Input

Input:

Description

Time:

The solution time at which the snapshot is required. See Note (a).

Title:

A descriptive title to be associated with the output. This entry is optional.

Scale:

A scale factor to apply to the data. This entry is optional, and defaults to a value of 1.

Element Set:

The element set for which the snapshot is to be produced. All plots are produced by default for all elements of the structure, which corresponds to the element set All.

Unit:

The units to be used for the vertical axis of the plot. This entry is optional, and defaults to the base units for this output type. See Note (b).

Notes

(a)When you specify a time value, Flexcom searches the analysis database for the solution time nearest to the value you input. For a snapshot at the analysis finish time, specify a time which is greater than the finish time you specified.

(b)The units entry explicitly specifies what units are to be assigned to the vertical axis of the plot. This entry is optional, and if omitted, Flexcom simply assigns suitable units depending on the base units for the particular output type. If you do explicitly specify a unit, then it must be consistent with the dimension of the output type. For example, force can be specified in Newtons, Kips etc. The program is quite flexible in terms of accepting unit descriptions – e.g. Newtons, Newton, N etc. are all equally valid. For a list of the units accepted by Flexcom, refer to Units Reference Guide.