怎样修改属性块中的属性???

maoyangmy

怎样修改属性块中的属性???
" c+ j0 R- W" a8 }因工作需要, 我想在程序中修改属性块的属性，新建、删除属性，修改属性的性质为“不可见”、“预设”等，如何实现？？？

liuwei_83

可以选择编辑块，然后进行修改，添加，或删除

sealive_leafage

那要看你用VBA或者是lisp编程工具了，工具不同方法也不相同；

maoyangmy

我现在想采用LISP编程, 怎样解决?
VBA在面向对象方便比LSP处理的好, 如果sealive_leafage 对此也了解,请一并告诉解决方法,谢谢

sealive_leafage

lisp可以尝试调用acad命令：-attedit来编辑属性；
. v4 w1 G6 Q: h7 E2 @可以试试下面的代码：
. S+ O6 p. S/ Q: [( m5 L8 |(defun c:test ()
1 N8 h' n9 y/ {- f(vl-load-com)
(setq att (getstring "\nChange attribute [Angle/Color/Height/Layer/Position/Style/Value/Tagstring]: "))
. A2 g" W; w# [- z5 ]) C  }9 v" F(setq obj (car (nentsel "\nSelect an Attribute: ")))
: h; H4 d3 H- c1 T(setq obj (vlax-ename->vla-object obj))
(cond
((= (strcase att) "A")
(setq ang (getstring t "\nNew Angle: "))
(vlax-put-property obj 'rotation ang))
((= (strcase att) "C")
(setq col (getstring "\nNew Color Number: "))
  v* ?) I( _- c1 A(vlax-put-property obj 'color col))
((= (strcase att) "H")
(setq ohei (vlax-get-property obj 'height))
(setq hei (getdist (strcat "\nNew Height <" (rtos oh 2 2) ">:")))
4 R- @5 a3 }8 z+ B& y0 f(if (= hei "")(setq hei ohei))
" K1 e% z4 m" M) @% Z+ @(vlax-put-property obj 'height hei))
((= (strcase att) "L")
" w- F3 a5 g" c: f% {(setq lay (getstring "\nNew Layer:"))
(if (not (tblsearch "LAYER" lay))
(alert (strcat "\nLayer " (strcase lay) " doesn't exist!"))
(vlax-put-property obj 'layer lay)
))
: Q/ V4 O' h% v, \((= (strcase att) "P")
(setq pos (getpoint "\nNew Position:"))
(vlax-put-property obj 'textalignmentpoint (vlax-3d-point pos)))
) E3 Q3 {1 A: ?: }9 ?$ q! B((= (strcase att) "S")
(setq sty (getstring "\nNew Style: "))
(if (not (tblsearch "STYLE" sty))
. F$ N, ^; Y: h' m(alert (strcat "\nThe style " (strcase sty) " doesn't exist!"))
(vlax-put-property obj 'stylename sty)
& C; U4 u4 x/ x) d, F7 Y))
((= (strcase att) "V")
4 ^* {5 u# d+ A& g, ^, t(setq val (getstring t "\nNew value: "))
(vlax-put-property obj 'textstring val))
);c
7 C$ e/ z" e( [9 m3 ?(princ)
" e& f# k" F) P7 X! b6 g& });defun
VBA完成属性编辑相对来说操作更方便，VBA可以按下面的代码获得和编辑属性
' Get the attributes for the block reference
    Dim varAttributes As Variant
    varAttributes = blockRefObj.GetAttributes
   
; f% v0 b* T- L6 c" s' r# P' ]    ' Move the attribute tags and values into a string to be displayed in a Msgbox
    Dim strAttributes As String
$ _8 x, ~5 w4 T9 v    Dim I As Integer
9 M' P( |0 w) K1 Q  i    For I = LBound(varAttributes) To UBound(varAttributes)
        strAttributes = strAttributes & "  Tag: " & varAttributes(I).TagString & _
                        "   Value: " & varAttributes(I).textString & "    "
9 y! t" i( b/ ^# p% \    Next
    MsgBox "The attributes for blockReference " & blockRefObj.name & " are: " & strAttributes, , "GetAttributes Example"
   
9 p6 _" d6 `/ d! T' x& J  D6 U    ' Change the value of the attribute
4 I6 M6 n+ B3 k0 \    ' Note: There is no SetAttributes. Once you have the variant array, you have the objects.
    ' Changing them changes the objects in the drawing.
5 X# P; W; Q1 j9 e, z- v    varAttributes(0).textString = "NEW VALUE!"

maoyangmy

如果用VBA来实现的话， 该怎样做？？？VBA与LISP相比，在处理这类问题上哪个更容易实现？？再次感谢楼上的

[ 本帖最后由 maoyangmy 于 2008-7-8 10:37 编辑 ]

maoyangmy

5楼的能不能把VBA的解决方案也分享一下, 非常感谢

nanisan

建议用VB弄，可以选择的项目比较多，控制性更好些。
8 ^9 \3 o3 d$ E3 L5 A在CAD的帮助文件里有例子，可以参考，我当初就是利用那个例子实现的自动编号。