我正在尝试插入具有自定义属性的块。如何设置这些变量？
在Deciduous块中，有一个自定义属性，称为“ visibility”，具有各种不同的样式（可见性1，可见性2，可见性3，...）。
例如，我将如何插入具有可见性3的Deciduous块。
(DEFUN C:TREE ( / DECIDUOUS CONIFER SHRUBMEDIUM SHRUBSMALL)
(INITGET 1 "DECIDUOUS CONIFER SHRUBMEDIUM SHRUBSMALL")
(OR
(SETQ RETKWORD (GETKWORD "\nSpecify tree type: [DECIDUOUS/CONIFER/SHRUBMEDIUM/SHRUBSMALL]:"))
(SETQ RETKWORD "DECIDUOUS")
)
(IF (= RETKWORD "DECIDUOUS")
(PROGN
(SETQ OLDLAYER (GETVAR "CLAYER"))
(SETQ FLAG (TBLSEARCH "LAYER" "L-PLNT-DECD"))
(IF FLAG
(SETVAR "CLAYER" "L-PLNT-DECD")
)
(INITGET 1 "Visibility1 Visibility2 Visibility3")
(OR
(SETQ CMDKWORD (GETKWORD "\nPick a command: [Visibility1/Visibility2/Visibility3]:"))
)
(IF (= CMDKWORD "Visibility3")
(PROGN
(COMMAND "INSERT"
"TT-L-TREE-DECIDUOUS"
)
)
)
(PRINC)
)
)
)
答案 0 :(得分：2)
这个问题的答案最终取决于AutoCAD INSERT命令提供的插入块引用的视觉预览。
由于标准AutoCAD INSERT命令在块插入期间不提示输入动态块参数值，因此需要插入块，然后使用插入的动态块的ActiveX属性和方法来操纵可见性状态。参考，特别是使用getdynamicblockproperties方法。
...然后，您可以完全放弃INSERT命令，并使用目标容器对象的insertblock方法（模型空间/纸张空间/块定义），这将返回块引用vla-宾语。
以下是一个基本示例，演示了如何使用insertblock方法：
(defun c:test ( / dwg ins )
(if
(and
(setq dwg (getfiled "Select Block" "" "dwg" 16))
(setq ins (getpoint "\nSpecify insertion point: "))
)
(vla-insertblock
(vlax-get-property
(vla-get-activedocument (vlax-get-acad-object))
(if (= 1 (getvar 'cvport))
'paperspace
'modelspace
)
)
(vlax-3D-point (trans ins 1 0))
dwg
1.0 1.0 1.0 0.0
)
)
(princ)
)
(vl-load-com) (princ)
此方法将返回块引用vla对象，然后可以使用getdynamicblockproperties方法返回的动态块属性数组来操纵其动态块属性。
由于您要特别修改“可见性状态”，因此，您不妨考虑作为dynamic block library的一部分开发的以下功能集，以修改提供的块引用对象的可见性状态：
;; Set Dynamic Block Visibility State - Lee Mac
;; Sets the Visibility Parameter of a Dynamic Block (if present) to a specific value (if allowed)
;; blk - [vla] VLA Dynamic Block Reference object
;; val - [str] Visibility State Parameter value
;; Returns: [str] New value of Visibility Parameter, else nil
(defun LM:SetVisibilityState ( blk val / vis )
(if
(and
(setq vis (LM:getvisibilityparametername blk))
(member (strcase val) (mapcar 'strcase (LM:getdynpropallowedvalues blk vis)))
)
(LM:setdynpropvalue blk vis val)
)
)
;; Get Visibility Parameter Name - Lee Mac
;; Returns the name of the Visibility Parameter of a Dynamic Block (if present)
;; blk - [vla] VLA Dynamic Block Reference object
;; Returns: [str] Name of Visibility Parameter, else nil
(defun LM:getvisibilityparametername ( blk / vis )
(if
(and
(vlax-property-available-p blk 'effectivename)
(setq blk
(vla-item
(vla-get-blocks (vla-get-document blk))
(vla-get-effectivename blk)
)
)
(= :vlax-true (vla-get-isdynamicblock blk))
(= :vlax-true (vla-get-hasextensiondictionary blk))
(setq vis
(vl-some
'(lambda ( pair )
(if
(and
(= 360 (car pair))
(= "BLOCKVISIBILITYPARAMETER" (cdr (assoc 0 (entget (cdr pair)))))
)
(cdr pair)
)
)
(dictsearch
(vlax-vla-object->ename (vla-getextensiondictionary blk))
"ACAD_ENHANCEDBLOCK"
)
)
)
)
(cdr (assoc 301 (entget vis)))
)
)
;; Get Dynamic Block Property Allowed Values - Lee Mac
;; Returns the allowed values for a specific Dynamic Block property.
;; blk - [vla] VLA Dynamic Block Reference object
;; prp - [str] Dynamic Block property name (case-insensitive)
;; Returns: [lst] List of allowed values for property, else nil if no restrictions
(defun LM:getdynpropallowedvalues ( blk prp )
(setq prp (strcase prp))
(vl-some '(lambda ( x ) (if (= prp (strcase (vla-get-propertyname x))) (vlax-get x 'allowedvalues)))
(vlax-invoke blk 'getdynamicblockproperties)
)
)
;; Set Dynamic Block Property Value - Lee Mac
;; Modifies the value of a Dynamic Block property (if present)
;; blk - [vla] VLA Dynamic Block Reference object
;; prp - [str] Dynamic Block property name (case-insensitive)
;; val - [any] New value for property
;; Returns: [any] New value if successful, else nil
(defun LM:setdynpropvalue ( blk prp val )
(setq prp (strcase prp))
(vl-some
'(lambda ( x )
(if (= prp (strcase (vla-get-propertyname x)))
(progn
(vla-put-value x (vlax-make-variant val (vlax-variant-type (vla-get-value x))))
(cond (val) (t))
)
)
)
(vlax-invoke blk 'getdynamicblockproperties)
)
)
您可以通过以下方式从我提供的先前示例中调用上述函数（更改可见性状态的名称以适合您的情况）：
(defun c:test ( / dwg ins )
(if
(and
(setq dwg (getfiled "Select Block" "" "dwg" 16))
(setq ins (getpoint "\nSpecify insertion point: "))
)
(LM:SetVisibilityState
(vla-insertblock
(vlax-get-property
(vla-get-activedocument (vlax-get-acad-object))
(if (= 1 (getvar 'cvport))
'paperspace
'modelspace
)
)
(vlax-3D-point (trans ins 1 0))
dwg
1.0 1.0 1.0 0.0
)
"YourVisibilityState"
)
)
(princ)
)
(vl-load-com) (princ)
...然后，除了使用INSERT循环滚动自己的标准grread命令版本（还需要模仿所有绘图辅助工具，例如Object Snap，以及Orthomode），则需要使用INSERT命令。
但是，由于只能在插入块参考之后更改块的可见性状态，因此显示给用户的视觉预览将不准确。
为获得两全其美，我先前曾提出以下可能的解决方案（以及随附的here附带功能）：
;; Example demonstrating a method to insert a Dynamic Block with a Visibility State already set.
;; Lee Mac - 2013-12-24
(defun c:test ( / *error* att blk def doc ent new obj par spc tmp vis )
(defun *error* ( msg )
(if (= 'int (type att))
(setvar 'attreq att)
)
(foreach obj (list new def)
(if (and (= 'vla-object (type obj)) (not (vlax-erased-p obj)))
(vl-catch-all-apply 'vla-delete (list obj))
)
)
(if (not (wcmatch (strcase msg t) "*break,*cancel*,*exit*"))
(princ (strcat "\nError: " msg))
)
(princ)
)
(cond
( (= 4 (logand 4 (cdr (assoc 70 (tblsearch "layer" (getvar 'clayer))))))
(princ "\nCurrent layer locked.")
)
( (null (setq blk (getfiled "Select Dynamic Block with Visibility States" "" "dwg" 16)))
(princ "\n*Cancel*")
)
( (progn
(setq doc (vla-get-activedocument (vlax-get-acad-object))
spc (vlax-get-property doc (if (= 1 (getvar 'cvport)) 'paperspace 'modelspace))
obj (vlax-invoke spc 'insertblock '(0.0 0.0 0.0) blk 1.0 1.0 1.0 0.0)
)
(vla-put-visible obj :vlax-false)
(= :vlax-false (vla-get-isdynamicblock obj))
)
(princ "\nSelected block is not dynamic.")
(vla-delete obj)
)
( (null (setq par (LM:getvisibilityparametername obj)))
(princ "\nSelected block does not have a visibility parameter.")
(vla-delete obj)
)
( (null (setq vis (car (LM:listbox "Choose a Visibility State" (acad_strlsort (LM:getdynpropallowedvalues obj par)) 0))))
(princ "\n*Cancel*")
(vla-delete obj)
)
( t
(LM:setdynpropvalue obj par vis)
(setq tmp 0)
(while (tblsearch "block" (setq blk (strcat "tmp" (itoa (setq tmp (1+ tmp)))))))
(vla-put-visible
(car
(vlax-invoke doc
'copyobjects
(list obj)
(setq def (vlax-invoke (vla-get-blocks doc) 'add '(0.0 0.0 0.0) blk))
)
)
:vlax-true
)
(vla-delete obj)
(setq ent (entlast)
att (getvar 'attreq)
)
(setvar 'attreq 0)
(if
(and
(vl-cmdf "_.-insert" blk "_S" 1.0 "_R" 0.0 "\\")
(not (eq ent (setq ent (entlast))))
(= "AcDbBlockReference" (vla-get-objectname (setq new (vlax-ename->vla-object ent))))
)
(progn
(vla-explode new)
(vla-delete new)
)
)
(vl-catch-all-apply 'vla-delete (list def))
)
)
(princ)
)
;; Get Visibility Parameter Name - Lee Mac
;; Returns the name of the Visibility Parameter of a Dynamic Block (if present)
;; blk - [vla] VLA Dynamic Block Reference object
;; Returns: [str] Name of Visibility Parameter, else nil
(defun LM:getvisibilityparametername ( blk / vis )
(if
(and
(vlax-property-available-p blk 'effectivename)
(setq blk
(vla-item
(vla-get-blocks (vla-get-document blk))
(vla-get-effectivename blk)
)
)
(= :vlax-true (vla-get-isdynamicblock blk))
(= :vlax-true (vla-get-hasextensiondictionary blk))
(setq vis
(vl-some
'(lambda ( pair )
(if
(and
(= 360 (car pair))
(= "BLOCKVISIBILITYPARAMETER" (cdr (assoc 0 (entget (cdr pair)))))
)
(cdr pair)
)
)
(dictsearch
(vlax-vla-object->ename (vla-getextensiondictionary blk))
"acad_enhancedblock"
)
)
)
)
(cdr (assoc 301 (entget vis)))
)
)
;; Get Dynamic Block Property Allowed Values - Lee Mac
;; Returns the allowed values for a specific Dynamic Block property.
;; blk - [vla] VLA Dynamic Block Reference object
;; prp - [str] Dynamic Block property name (case-insensitive)
;; Returns: [lst] List of allowed values for property, else nil if no restrictions
(defun LM:getdynpropallowedvalues ( blk prp )
(setq prp (strcase prp))
(vl-some '(lambda ( x ) (if (= prp (strcase (vla-get-propertyname x))) (vlax-get x 'allowedvalues)))
(vlax-invoke blk 'getdynamicblockproperties)
)
)
;; Set Dynamic Block Property Value - Lee Mac
;; Modifies the value of a Dynamic Block property (if present)
;; blk - [vla] VLA Dynamic Block Reference object
;; prp - [str] Dynamic Block property name (case-insensitive)
;; val - [any] New value for property
;; Returns: [any] New value if successful, else nil
(defun LM:setdynpropvalue ( blk prp val )
(setq prp (strcase prp))
(vl-some
'(lambda ( x )
(if (= prp (strcase (vla-get-propertyname x)))
(progn
(vla-put-value x (vlax-make-variant val (vlax-variant-type (vla-get-value x))))
(cond (val) (t))
)
)
)
(vlax-invoke blk 'getdynamicblockproperties)
)
)
;; List Box - Lee Mac
;; Displays a DCL list box allowing the user to make a selection from the supplied data.
;; msg - [str] Dialog label
;; lst - [lst] List of strings to display
;; bit - [int] 1=allow multiple; 2=return indexes
;; Returns: [lst] List of selected items/indexes, else nil
(defun LM:listbox ( msg lst bit / dch des tmp rtn )
(cond
( (not
(and
(setq tmp (vl-filename-mktemp nil nil ".dcl"))
(setq des (open tmp "w"))
(write-line
(strcat "listbox:dialog{label=\"" msg "\";spacer;:list_box{key=\"list\";multiple_select="
(if (= 1 (logand 1 bit)) "true" "false") ";width=50;height=15;}spacer;ok_cancel;}"
)
des
)
(not (close des))
(< 0 (setq dch (load_dialog tmp)))
(new_dialog "listbox" dch)
)
)
(prompt "\nError Loading List Box Dialog.")
)
( t
(start_list "list")
(foreach itm lst (add_list itm))
(end_list)
(setq rtn (set_tile "list" "0"))
(action_tile "list" "(setq rtn $value)")
(setq rtn
(if (= 1 (start_dialog))
(if (= 2 (logand 2 bit))
(read (strcat "(" rtn ")"))
(mapcar '(lambda ( x ) (nth x lst)) (read (strcat "(" rtn ")")))
)
)
)
)
)
(if (< 0 dch)
(unload_dialog dch)
)
(if (and tmp (setq tmp (findfile tmp)))
(vl-file-delete tmp)
)
rtn
)
(vl-load-com) (princ)
我的解决方案实质上包括临时插入块引用，适当配置可见性状态，创建包含已配置的动态块的临时块定义，然后利用标准INSERT命令提供的可视预览来插入临时块块参考，然后将其从工程图中分解并清除。
答案 1 :(得分：1)
具有自定义属性的块称为动态块。 详细信息和示例您可以找到here
p.s。 谢谢@LeeMac