请问"vla-get-layers"之类的函数详细说明哪里找得到？

William · 发表于 2002-10-10 14:46:00

请问vla-get-layers之类的函数详细说明哪里找得到？
Acad2002帮助文档里根本没有，在vlisp编辑界面上，可以看到它是蓝色的，说明这已经是个内置函数。

dbczhaoy · 发表于 2002-10-17 21:59:00

用来获取图形对象特性的函数名前有一个 vla-get 前缀，这类函数的调用语法如下：

(vla-get-property object)

例如，vla-get-center 返回圆的圆心。

获取对象特性并将该特性应用到新对象的步骤

1 在 VLISP 控制台提示下输入如下命令：

(setq myCircle (vla-addcircle mspace (vlax-3d-point
(getpoint "\nPick the center point for a circle: ")) 2.0))

该函数调用提示拾取圆的圆心，然后调用 addCircle 方法画出该圆。其中 vlax-3d-point 函数用于将拾取的点转换成 vla-addcircle 要求的数据类型。

2 使用 vla-get-center 画第一个圆的同心圆：

(vla-addCircle mSpace (vla-get-center myCircle) 1.0)
看看会发生什么

龙龙仔 · 发表于 2002-10-18 08:01:00

Gets the Layers collection for the document.

Signature

object.Layers

object Document
The object or objects this property applies to.
Layers Layers collection; read-only
The Layers collection for the document.

-----------------------------------------------------------

Specifies the layer for an entity.

Signature

object.Layer

object All Drawing objects, AttributeRef, Group
The object or objects this property applies to.
Layer String; read-write (write-only for the Group object)
The name of the layer.

Remarks

All entities have an associated layer. The document always contains at least one layer (layer 0). As with linetypes, you can specify a layer for an entity. If you don specify a layer, the current active layer is used for a new entity. If a layer is specified for an entity, the current active layer is ignored. Use the ActiveLayer property to set or query the current active layer.
Each layer has associated properties that can be set and queried through the Layer object.

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请问"vla-get-layers"之类的函数详细说明哪里找得到？

CAD2000帮助里有，如下：

ActiveX 與 vba 參考手冊中性質--layers & layer