Author Topic: xref attribute work around  (Read 11265 times)

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Lee Mac

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Re: xref attribute work around
« Reply #30 on: March 28, 2011, 10:35:46 AM »
All I can say is thank you.

Thank you.

You're very welcome CADMan :-)

cadman6735

  • Guest
Re: xref attribute work around
« Reply #31 on: March 29, 2011, 04:59:28 PM »
I am starting to notice code like the code in red in other code:

Code: [Select]
(setq ss (ssget [color=red]"_+.:S:E"[/color] (list (cons 0 "TEXT,MTEXT") (cons 410 (getvar 'CTAB)))))

Another example

Quote
(if (setq ss (ssget "_:L" '((0 . "MTEXT") (1 . "*\\P*"))))

What is it?



alanjt

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Re: xref attribute work around
« Reply #32 on: March 29, 2011, 05:03:19 PM »
Code: [Select]
SSGET

the underscore (_) is needed with W, F, WP, :S but not with X, A, C, CP, I, L, P, :E ...

(ssget '(2 2))
Create a selection set of the object passing through (2,2):
                                                                                               
+.  The undocumented “+.” mode forces (ssget) to remain in “point” mode, similar to
    setting PickAuto to 0.... the "+." puts (ssget) into "point" mode. It helps the ":S"
    single-mode act just like (entsel) by avoiding implied selection windows.

A  All like "X" but filters frozen out
   Selects all objects on thawed layers.

B  Box
   Selects all objects inside or crossing a rectangle specified by two points. If
   the rectangle's points are specified from right to left, Box is equivalent to
   Crossing. Otherwise, Box is equivalent to Window.

C  Crossing  Simular to Window selection
   Selects objects within and crossing an area defined by two points. A crossing
   selection is displayed as dashed or otherwise highlighted to differentiate it
   from window selection. Specifying the corners from right to left creates a
   crossing selection. *** (Specifying the corners from left to right creates a window
   selection.)  (ssget "_C" '(0 0) '(1 1))
   Caution: the area must be on the screen for this to work properly - CAB
   
CP Crossing Polygon
   Selects objects within and crossing a polygon defined by specifying points. The
   polygon can be any shape but cannot cross or touch itself. AutoCAD draws the
   last segment of the polygon so that it is closed at all times. CPolygon is not
   affected by the PICKADD system variable.
   (ssget "_CP" '((1 1)(3 1)(5 2)(2 4)))
   Example with filters (ssget "_CP" '(Point list) '(Filter List))
   (setq ss (ssget "_CP" '((0 0)(10 0)(10 10)(0 10)) '((0 . "INSERT") (66 . 1))  ))
   Caution: the area must be on the screen for this to work properly - CAB
   (vl-cmdf "._zoom" "_E") ; Extents
   
:D Duplicates OK, else duplicates are ignored

:E Everything in aperture
   Everything within the cursor's object selection pickbox.

F Fence
  Selects all objects crossing a selection fence. The Fence method is similar to
  CPolygon except that AutoCAD does not close the fence, and a fence can cross
  itself. Fence is not affected by the PICKADD system variable.

G Groups
  Selects all objects within a specified group.

I Implied
  Implied selection (objects selected while PICKFIRST is in effect).

L Last
  Last visible object added to the database
 
:L Rejects locked layers

M  Multiple
   Specifies multiple points without highlighting the objects, thus speeding up
   the selection process for complex objects. The Multiple method also selects two
   intersecting objects if the intersection point is specified twice.
 
:N Nested
   Call ssnamex for additional information on container blocks and transformation
   matrices for any entities selected during the ssget operation. This additional
   information is available only for entities selected via graphical selection
   methods such as Window, Crossing, and point picks.
   
   Unlike the other object selection methods, :N may return multiple entities with
   the same entity name in the selection set. For example, if the user selects a
   subentity of a complex entity such as a BlockReference, PolygonMesh, or old
   style polyline, ssget looks at the subentity that is selected when determining
   if it has already been selected. However,  ssget actually adds the main entity
   (BlockReference, PolygonMesh, etc.) to the selection set. The result could be
   multiple entries with the same entity name in the selection set (each will have
   different subentity information for ssnamex to report).

P  Previous
   Selects the most recent selection set. The Previous selection set is cleared by
   operations that delete objects from the drawing. AutoCAD keeps track of whether
   each selection set was specified in model space or paper space. The Previous
   selection set is ignored if you switch spaces.

:P Rejects Viewport

:R Allows entities in a long transaction to be selected.

:S Force single object selection only

:U Enables subentity selection - 2006+
Cannot be combined with the  duplicate (":D") or nested (":N")  selection modes.
In this  mode, top-level  entities are  selected by  default, but  the user  can
attempt  to  select  subentities  by pressing  the  CTRL  key  while making  the
selection. This option  is supported only  with interactive selections,  such as
window, crossing, and polygon. It is  not supported for all, filtered, or  group
selections.

:V Forces subentity selection - 2006+
Treats all interactive,  graphic selections performed  by the user  as subentity
selections. The returned  selection set contains  subentities only. This  option
cannot be combined with the  duplicate (":D") or nested (":N")  selection modes.
This option is  supported only with  interactive selections, such  as window and
crossing. It is not supported for all, filtered, or group selections.

W  Window
   Selects all objects completely inside a rectangle defined by two points.
   Specifying the corners from left to right creates a window selection.
   (Specifying the corners from right to left creates a crossing selection.)

WP Window Polygon
   Selects objects completely inside a polygon defined by points. The polygon can
   be any shape but cannot cross or touch itself. AutoCAD draws the last segment of
   the polygon so that it is closed at all times. WPolygon is not affected by the
   PICKADD system variable.

X  Extended search (search whole database)
   Entire database. If you specify the X selection method and do not provide a
   filter-list, ssget selects all entities in the database, including entities on
   layers that are off, frozen, and out of the visible screen.
   
   Also at the command prompt "Select objects:" you can enter
   Add, Remove, Undo,

:U Enables subentity selection. Cannot be combined with the duplicate (":D") or
   nested (":N") selection modes. In this mode, top-level entities are selected by
   default, but the user can attempt to select subentities by pressing the CTRL key
   while making the selection. This option is supported only with interactive
   selections, such as window, crossing, and polygon. It is not supported for all,
   filtered, or group selections.

:V Forces subentity selection. Treats all interactive, graphic selections
   performed by the user as subentity selections. The returned selection set
   contains subentities only. This option cannot be combined with the duplicate
   (":D") or nested (":N") selection modes. This option is supported only with
   interactive selections, such as window and crossing. It is not supported for
   all, filtered, or group selections.

Systen Var
  PICKADD controls whether subsequent selections replace the current selection set or add to it.
Civil 3D 2019 ~ Windohz 7 64bit
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cadman6735

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Re: xref attribute work around
« Reply #33 on: March 29, 2011, 05:08:00 PM »
whow, that was quick

Thanks Alan

Lee Mac

  • Seagull
  • Posts: 12937
  • London, England
Re: xref attribute work around
« Reply #34 on: March 29, 2011, 06:11:29 PM »
whow, that was quick

Thanks Alan

Alan's a quick typist  :evil:

alanjt

  • Needs a day job
  • Posts: 5353
  • Standby for witty remark...
Re: xref attribute work around
« Reply #35 on: March 29, 2011, 06:24:21 PM »
whow, that was quick

Thanks Alan

Alan's a quick typist  :evil:
"Ctrl+C" and "Ctrl+V"  :lol:
Civil 3D 2019 ~ Windohz 7 64bit
Dropbox