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This command defines a point as a ratio along a line or between two existing points.
| pnam | = | name of a new point. |
| = | name of an existing point to be moved. | |
| = | /PICK and a cursor hit to select an existing point to be moved. | |
| nam | = | name of an old line. |
| = | /PICK and a cursor hit to select the line. | |
| = | The names of two reference points defining an existing or imaginary | |
| straight line. | ||
| = | /PICK and two cursor hits selecting two points on an existing or | |
| imaginary straight line. | ||
| = | name of an existing FEMGEN curve shape | |
| position | = | relative position along the line (0.0 to 1.0), see note 1. |
| The relative position of the point along the line may be specified | ||
| as a real value or a parameter. If the relative position of the | ||
| point is specified as a parameter the point will be classified as dependent as | ||
| described below. | ||
| int | = | Integer value (1 or 2); used when a FEMGEN curve shape has two possible parts |
| to select which of the parts is to be used. Normally only used in FEMGEN | ||
| archive files. | ||
| depn | = | dependency control, either DEPENDENT or INDEPEND (the default). |
| If DEPENDENT is specified then the position of the point created by the | ||
| GEOMETRY POINT ONLINE command will remain dependent on the | ||
| definition of the line or the positions of the two end points of the line | ||
| specified in the command. Thus if the line or the position of either end point | ||
| is subsequently redefined then the created point will be moved to maintain | ||
| its relative position. If INDEPEND is specified then the position of the | ||
| point created by the GEOMETRY POINT ONLINE command will be uneffected | ||
| by subsequent redefinitions of the originating line or its two end points. |
Return Level: GEOMETRY POINT
Notes:
Examples:
Creates a point P7 half way along line L1.
Creates a point P8 a quarter of the distance between points P1 and P2.
Creates a point P8 having its relative position between points P1 and P2 defined by the parameter PCCC. Because PCCC is a parameter, P8 will remain dependent on P1, P2 and PCCC, and be effected by any changes to the definition of P1, P2 or PCCC.
Creates a point P7 half way along line L1. The position of the point P7 will remain dependent on, and thus be effected by, any subsequent change to the definition of line L1 or the position of its end points.
See also the following commands
'CONSTRUCT PARAMETER'
'LABEL GEOMETRY POINTS'
'UTILITY DELETE POINTS'
'UTILITY TABULATE GEOMETRY POINTS'
'VIEW GEOMETRY'
Femsys Limited