Field Block Attribute to control visibility state

[Anonymous]

I have to first thank Lee-Mac's website for getting me this far, but now I'm stuck.  I should say, I'm pretty green at lisp but doing my best and giving it a clumsy try

I have a stamp block _pe_STAMP which contains an attribute tag DWG_STAMP.  The attribute value is populated by a custom sheet set field (pe_01-PLOT_STAMP).  That block has 6 or so visibility states.  I would like to be able to change the value in the SSM field and have the LISP run at drawing open and at save and have it update.  I've seen variations of this, but nothing that works for me. 

Also, if the attribute value doesn't match a visibility state, I would like it to be set to none.

Here's what I have so far, from what seems to be the authority on the subject, a basic copy and paste from Lee Mac's website:

(defun c:Test ( / blk idx obj sel vis )
(setq blk "_pe_Stamp" ;; Block Name
vis LM:getattributevalue) ;; New Visibility State
 ) 

  

  
(if (setq sel (ssget "_X" (list '(0 . "INSERT") (cons 2 (strcat "`*U*," blk)) '(410 . "~Model"))))
(repeat (setq idx (sslength sel))
(if (= (strcase blk) (strcase (LM:blockname (setq obj (vlax-ename->vla-object (ssname sel (setq idx (1- idx))))))))
(LM:SetVisibilityState obj vis)
)
)
)
(princ)
)

;; Get Attribute Value  -  Lee Mac
;; Returns the value held by the specified tag within the supplied block, if present.
;; blk - [ent] Block (Insert) Entity Name
;; tag - [str] Attribute TagString
;; Returns: [str] Attribute value, else nil if tag is not found.
(defun LM:getattributevalue ( blk tag / val enx )
    (while
        (and
            (null val)
            (= "ATTRIB" (cdr (assoc 0 (setq enx (entget (setq blk (entnext blk)))))))
        )
        (if (= (strcase tag) (strcase (cdr (assoc 2 enx))))
            (setq val (cdr (assoc 1 enx)))
        )
    )
)

(LM:getattributevalue "_pe_Stamp" "DWG_STAMP")    




;; Block Name - Lee Mac
;; Returns the true (effective) name of a supplied block reference
(defun LM:blockname ( obj )
(if (vlax-property-available-p obj 'effectivename)
(defun LM:blockname ( obj ) (vla-get-effectivename obj))
(defun LM:blockname ( obj ) (vla-get-name obj))
)
(LM:blockname obj)
)


;; 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)
)
)
;; 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)
)
)
;; 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)
)
)
;; 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)))
)
)
  
(vl-load-com) (princ)

[john.uhden]

@Anonymous wrote:

(defun c:Test ( / blk idx obj sel vis )
(setq blk "_pe_Stamp" ;; Block Name
vis LM:getattributevalue) ;; New Visibility State
 ) 

I didn't look very far, but what I did notice is that LM:getattributevalue is a function,so maybe you should put parentheses around it.  It also requires two (2) arguments, blk and tag.  You have defined the block name, but not the tag name.

(defun c:Test ( / blk tag idx obj sel vis )
 (setq blk "_pe_Stamp" ;; Block Name
       tag "YOURTAG"
       vis (LM:getattributevalue blk tag)) ;; New Visibility State
) 

I apologize, but I just don't have the patience to look through lengthy code by others.

[Anonymous]

Hello, I'm trying to do something similar, but i want to use a field, referenced from an excel table, or just the excel table itself to drive tbd various visibility states of my dynamic block. Any help, guidance, voodoo etc would be greatly appreciated. Thank you