Clash Set Data Form
- Last UpdatedJan 03, 2024
- 4 minute read
This form is used to enter details of a new clash set, or to edit details of an existing clash set.
Clash sets can be defined directly, copied from an existing clash set, or created from the ‘Default’ template clash set, if defined.
Notes on 'Default' Clash Set: The defaults on this form for new clash sets can be defined by a 'Default' clash set, or by environment variables. The 'Default' clash set method is recommended because using environment variables in a windows environment is particularity user-unfriendly and does not promote re-use of the default data between users of the same project. Also, users may have different environment variables, or access the common database from different installations of the software, served from different file servers.
The 'Default' clash set provides default values for New Clash Sets created via the ADD option on the Clash Sets form and also when a Personal Clash Set is created automatically during the Clash Check CE process. The 'Default' clash set method enables items in the Check, Obstruction or Exclude Lists to be set as defaults, whereas there is no existing capability to provide default Check, Obstruction or Exclude Lists through the use of environment variables.
To use the 'Default' clash set method, the Administrator must first create a Clash Set entitled 'Default' containing the required default values. When the 'Default' clash set exists, the ADD option will implicitly perform a copy of the 'Default' Clash Set. Note that if environment variables exist, they will be used after the initial values have been set through copying the 'Default' Clash Set. Subsequent alteration of environment variables affect the 'Default' clash set when it is used for new clash sets.
The environment variables and typical default values are as follows:
PCLAM_DEFAULT_BCHECK=A|b
PCLAM_DEFAULT_IGNORECONNECTIONS=TRUE|False
PCLAM_DEFAULT_MAPOVER=TRUE|False
PCLAM_DEFAULT_CHECKADD=TRUE|False
PCLAM_DEFAULT_TOLERANCE=0
PCLAM_DEFAULT_NOCHECKWITHIN="STRU EQUI HANG"
PCLAM_DEFAULT_CLEARANCE=2
PCLAM_DEFAULT_GAP=0
PCLAM_DEFAULT_OVERLAP=0
Notes on Personal Clash Set: During the Clash Check CE process, the form is used to enter details of a personal clash set. This clash set is used for EVERY clash check of the CE in the particular MDB and, consequently, the default values should be used wherever possible. The Title and MDB fields are read-only. The Check List is automatically completed with details of the group element of the CE. Entries can be made in the Obstruction and Exclude lists, but it is recommended that neither is populated. In these circumstances the Obstruction list defaults to ALL and the Exclude list remains empty.
The form includes the following items:
|
Set |
Generated automatically as a unique index for the clash set. Cannot be changed. |
|
Title |
The title associated with the clash set. Can be changed from 'Default' or entered if the field is bank. |
|
MDB |
The name of the Mdb to be used within Marine. |
|
Comment |
Any comment to be associated with the clash set. |
|
Obstruction List |
A list of named elements or wildcards covering a range of elements and their attributes from within the specified Mdb that form the Obstruction List. The popup menu option 'Evaluate' (see below) may be used to verify the resultant Obstruction list is as required. Note that for this evaluation the Exclude List is not used in deriving the resulting Obstruction list. |
|
Exclude List |
A list of named elements or wildcards covering a range of elements and their attributes from within the specified Mdb. This ‘Exclude List’ specifies members that are to be excluded from the Obstruction list. . The popup menu option 'Evaluate' (see below) may be used to verify that the resultant Exclude list is as required. |
|
Check List |
A list of named elements or wildcards covering a range of elements and their attributes from within the specified Mdb that form the ‘check list’ for the clash detection. The popup menu option 'Evaluate' (see below) may be used to verify that the resultant Check list is as required. Note: Where minimal clashing activity is expected 'SITES' (or wildcards returning Sites) should be entered into the Checklist. Where much activity is expected, individual ZONEs (or wildcards returning Zones) should be entered into the Checklist. This ensures the best mix of parallel Clashing and Loading. |
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Add, |...| and Delete |
These buttons, below each of the lists, respectively have the same functions as the 'Add', 'Browse' and 'Delete' options of the popup menu (see below). |
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Extents |
The items on this tab are used to specify the overlap, gap and clearances. |
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Limits |
The items on this tab are used to specify the co-ordinates of the space occupied by the clash set. |
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History |
The items on this tab show the dates and details of previous clash runs. |
|
Units |
Used to select either mm or inch as the dimensional unit. |
|
Reset to Default Values |
Used to reset the values specified for Overlap, Gap and Clearance to the default values. |
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Nocheck Within |
No clash checks between items within the same hierarchy of given Types. |
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"new" Tolerance |
Any clash that is between the same two elements of an existing clash and is within this tolerance is NOT treated as a new clash. |
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MAP Override |
If checked, causes desclash to ignore errors in the Spatial Map, which would otherwise abort the desclash run. |
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Ignore Connections |
Ignore Connections at steelwork Junctions. |
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Branch Check |
Used to select either 'A Check' or 'B Check'. The default is 'B Check'. 'A Check' checks for clashes within an item. This option is not normally recommended. 'B Check' checks for clashes between different items. This option is normally used. |
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Check ADD |
Passes the ‘Check ADD’ option to desclash. This causes the Clash Check List to be automatically added to the Obstruction List. |
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OK |
Confirms selections made and closes the form. |
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Cancel |
Ignores selections made and closes the form. |
Note on modified checklist items option: some Marine Admin options, including merge (compress) and reconfigure, flag every element as having possibly changed geometry. To obtain maximum benefit from ‘Clash Check Modified Elements Only’ a full Clash Check will need to be executed after use of these options.