GeoTools->Selection

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The Selection Tools pertain to a collection of tools used for manipulating and selecting objects.





Toolbar : Selection  (BricsCAD only)
      Menu : GeoTools Selection The filter command from AutoCAD
Command line : GT_FILTER

The GT_FILTER command provides the familiar object selection command in BricsCAD. With GT_FILTER, you can build your own powerful filter criteria  using object properties, along with logical operator combinations (AND, OR or NOT).

The GT_FILTER command complements the QSELECT filter tool of BricsCAD as well as the GT_MAKESEL command of GeoTools, both of which are also used for object selection and filtering, but have different approaches and interfaces.


 

 


Toolbar : Selection   
     
Menu : GeoTools Selection Filter Polylines
Command line : GT_PLFILTER
Filters polylines based on their properties.

Apply powerful filters on polylines

The following properties of polylines can be filtered from the selection set.

2D 3D Open
Closed Fitted Arced
Splined Meshed Polyface
Z value Length Number of vertices
Area Start-End Distance  

The length, area, number of vertices or start-end distances are specified by entering < n, <= n, > n, >= n, = n, /= n where "n" is the value to check for.

Specify the numeric logical comparative operator in one of these ways.

< 'Value' - Less than 'Value'
<= 'Value' - Less than or equal to 'Value'
> 'Value' - Greater than 'Value'
>= 'Value' - Greater than or equal to 'Value'
= 'Value' - Equal to 'Value'
/= 'Value' - Not Equal to 'Value'

Enter Length / Area / Z criteria: <= 55.0
This would select all objects with the specified property less than or equal to 55.0

Notes: The Start-End distances are always measured in slope in the case of 3d polylines. The Z value check will fail if there is even one vertex in the polyline that fails to meet the criterion.


 

Toolbar : Selection   
     
Menu : GeoTools Selection Filter 3DFaces based on properties.
Command line : GT_3DFFILTER 

The GT_3DFFILTER command filters 3dfaces based on their derived geometric properties like area or perimeter and also look for a duplicate vertex within





Toolbar : Selection   
      Menu : GeoTools Selection Enhanced Entity Selector.
Command line : GT_ESELECT 
The GT_ESELECT command allows the Fence, CrossingPoly [CP] and WindowPoly [WP] selection modes to be applied automatically along multiple polylines which serve as boundaries for the selection.

Enhanced entity selector

Once the boundary polylines for selection are specified, the command zooms to each polygon and applies the selection mode. The results of selection from each polyline are  combined and placed in the active selection set. This command can be used along with the GT_MAKESEL command to build very powerful selection filters.


See also: GT_MAKESEL


 


Toolbar : Selection   
      Menu : GeoTools Selection Build a selection set.
Command line : GT_MAKESEL
See under Object selection methods




Toolbar : Selection   
      Menu : GeoTools Selection Find objects in selected Z range.
Command line : GT_FINDZRNG 

Find Objects in specified elevation range

The GT_FINDZRNG command selects all objects whose Z values fall within a specified range. This is a useful QA / QC tool.




Toolbar : Selection  
     
Menu : GeoTools Selection Select current layer.
Command line : GT_SL 

Select current layer

The GT_SL command selects an entity and make its layer the current layer. Alternately, you can choose layers from a dialog box



Toolbar : Selection  
     
Menu : GeoTools Selection Select current style
Command line : GT_SS 
Select a text and make its style the current text style. Alternately, you can choose available styles from a dialog box. 

 


Toolbar : Selection    
     
Menu : GeoTools Selection Put last processed selection into [active] or "previous" select set.
Command line : GT_LASTSEL 
The GT_SSET command retrieves the last created or processed objects by a GeoTools command and places them in internal memory as well as in the active [previous] selection set. The active selection may be overwritten at any time using other selection commands, but the last processed results of a GeoTools command are always “remembered” by this command and can always be brought back to active selection using this command.

 

 

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