我不熟悉visual lisp和学习反应器。看到这篇文章,决定做一些类似的事情。LISP要求绘制一个圆和一条线,然后创建reactor。reactor将保持圆心和线端点之间的关系。当我移动任何一个实体时,反应器会更新另一个实体。但总是给我一些错误。我做错了什么。请帮忙。提前谢谢。对不起,压痕不好。无法理解如何发布lisp代码。
- (defun c:reactry (/ entcirc entline modangle moddist)
- (command "._circle" pause pause)
- (setq entcirc (vlax-ename->vla-object (entlast)))
- (command "._line" pause pause "")
- (setq entline (vlax-ename->vla-object (entlast)))
- (setq modangle (angle
- (vlax-safearray->list
- (variant-value (vlax-get-property entline 'endPoint))
- ) ;_ end vlax-safearray->list
- (vlax-safearray->list
- (variant-value (vlax-get-property entcirc 'center))
- ) ;_ end vlax-safearray->list
- ) ;_ end angle
- moddist (distance
- (vlax-safearray->list
- (variant-value (vlax-get-property entline 'endPoint))
- ) ;_ end vlax-safearray->list
- (vlax-safearray->list
- (variant-value (vlax-get-property entcirc 'center))
- ) ;_ end vlax-safearray->list
- ) ;_ end distance
- ) ;_ end setq
- (vlr-object-reactor (list entcirc entline)
- (list modangle moddist)
- '((:vlr-objectClosed . modifyentities))
- ) ;_ end vlr-object-reactor
- ) ;_ end defun
- (defun modifyentities
- (notobj reacobj syslist / ownerslist paramlist adoc)
- (setq ownerslist (vlr-owners reacobj))
- (setq paramlist (vlr-data reacobj))
- (setq adoc (vlax-get-property (vlax-get-acad-object) 'activedocument))
- (vlr-remove reacobj)
- (cond ((= "AcDbCircle" (vlax-get-property notobj 'ObjectName))
- (vlax-put-property
- (if (= "AcDbCircle" (car ownerslist))
- (cadr ownerslist)
- (car ownerslist)
- ) ;_ end if
- 'endPoint
- (vlax-invoke-method (vlax-get-property adoc 'utility)
- 'polarPoint
- (vlax-get-property notobj 'center)
- (+ pi (car paramlist))
- (cadr paramlist)
- ) ;_ end vlax-invoke-method
- ) ;_ end vlax-put-property
- )
- (T
- (vlax-put-property
- (if (= "AcDbCircle" (car ownerslist))
- (car ownerslist)
- (cadr ownerslist)
- ) ;_ end if
- 'center
- (vlax-invoke-method (vlax-get-property adoc 'utility)
- 'polarPoint
- (vlax-get-property notobj 'endPoint)
- (car paramlist)
- (cadr paramlist)
- ) ;_ end vlax-invoke-method
- ) ;_ end vlax-put-property
- )
- ) ;_ end cond
- (vlr-add reacobj)
- ) ;_ end defun
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