addarc 圆弧运用

rgbjjj265

我用vb想编写一个画扇形的程序，里面编写了

lwpoly = objDoc.ModelSpace.AddArc(centerPoint, radius, startAngleInRadian, endAngleInRadian)
可以成功将圆弧段画出来，但是两条直线边出不来.

上网找到一个文章

[object.]Circle [Step](x, y), radius, [color], start, end[, aspect]

如果 start 参数或 end 参数是负数的话，Visual Basic 将画一条连接圆心到负端点的线。例如，下面的过程将用消除切片方式画出一个饼。

Private Sub Form_Click ()
   Const PI = 3.14159265
   Circle (3500, 1500), 1000, , –PI / 2, –PI / 3
End Sub

我在我的程序里加了负号，直线不但没出来，还将我的圆弧画错了（画大了）。

请问有什么好方法可以解决画出两条直线吗？

谢谢

rgbjjj265

我的qq号226979518

希望大家不吝赐教

fjfhgdwfn

负号可以算成正的了

看ArC的帮助了。知道端点。直线画出来应很简单了

VBA 类名	AcadArc
创建方法	ModelSpace.AddArc PaperSpace.AddArc Block.AddArc
访问途径	ModelSpace.Item PaperSpace.Item Block.Item SelectionSet.Item Group.Item

弧始终是以从起点依反时针方向画到端点而成。弧的 StartPoint 和 EndPoint 属性是通过 MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_startangle.htm">StartAngle、MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_endangle.htm">EndAngle 和 MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_radius.htm">Radius 属性来计算。

	Center    StartPoint  (圆心)  (起点) (圆心)  (起点)
Radius (半径)  (半径)		EndAngle (终止角度) StartAngle (起始角度) EndPoint (终点)

要创建弧，可使用 MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_addarc.htm">AddArc 方法。要编辑或查询弧，可使用下列方法和属性：

方法 MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_arraypolar.htm"> ArrayPolar MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_arrayrectangular.htm"> ArrayRectangular MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_copy.htm"> Copy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_delete.htm"> Delete MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getboundingbox.htm"> GetBoundingBox MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getextensiondictionary.htm"> GetExtensionDictionary MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getxdata.htm"> GetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_highlight.htm"> Highlight MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_intersectwith.htm"> IntersectWith MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror.htm"> Mirror MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror3d.htm"> Mirror3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_move.htm"> Move MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_offset.htm"> Offset MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate.htm"> Rotate MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate3d.htm"> Rotate3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_scaleentity.htm"> ScaleEntity MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_setxdata.htm"> SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   ArrayPolar MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_arrayrectangular.htm"> ArrayRectangular MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_copy.htm"> Copy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_delete.htm"> Delete MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getboundingbox.htm"> GetBoundingBox MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getextensiondictionary.htm"> GetExtensionDictionary MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getxdata.htm"> GetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_highlight.htm"> Highlight MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_intersectwith.htm"> IntersectWith MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror.htm"> Mirror MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror3d.htm"> Mirror3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_move.htm"> Move MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_offset.htm"> Offset MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate.htm"> Rotate MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate3d.htm"> Rotate3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_scaleentity.htm"> ScaleEntity MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_setxdata.htm"> SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   ArrayRectangular MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_copy.htm"> Copy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_delete.htm"> Delete MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getboundingbox.htm"> GetBoundingBox MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getextensiondictionary.htm"> GetExtensionDictionary MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getxdata.htm"> GetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_highlight.htm"> Highlight MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_intersectwith.htm"> IntersectWith MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror.htm"> Mirror MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror3d.htm"> Mirror3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_move.htm"> Move MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_offset.htm"> Offset MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate.htm"> Rotate MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate3d.htm"> Rotate3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_scaleentity.htm"> ScaleEntity MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_setxdata.htm"> SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   Copy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_delete.htm"> Delete MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getboundingbox.htm"> GetBoundingBox MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getextensiondictionary.htm"> GetExtensionDictionary MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getxdata.htm"> GetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_highlight.htm"> Highlight MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_intersectwith.htm"> IntersectWith MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror.htm"> Mirror MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror3d.htm"> Mirror3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_move.htm"> Move MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_offset.htm"> Offset MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate.htm"> Rotate MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate3d.htm"> Rotate3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_scaleentity.htm"> ScaleEntity MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_setxdata.htm"> SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   Delete MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getboundingbox.htm"> GetBoundingBox MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getextensiondictionary.htm"> GetExtensionDictionary MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getxdata.htm"> GetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_highlight.htm"> Highlight MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_intersectwith.htm"> IntersectWith MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror.htm"> Mirror MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror3d.htm"> Mirror3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_move.htm"> Move MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_offset.htm"> Offset MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate.htm"> Rotate MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate3d.htm"> Rotate3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_scaleentity.htm"> ScaleEntity MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_setxdata.htm"> SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   GetBoundingBox MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getextensiondictionary.htm"> GetExtensionDictionary MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getxdata.htm"> GetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_highlight.htm"> Highlight MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_intersectwith.htm"> IntersectWith MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror.htm"> Mirror MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror3d.htm"> Mirror3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_move.htm"> Move MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_offset.htm"> Offset MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate.htm"> Rotate MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate3d.htm"> Rotate3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_scaleentity.htm"> ScaleEntity MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_setxdata.htm"> SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   GetExtensionDictionary MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_getxdata.htm"> GetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_highlight.htm"> Highlight MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_intersectwith.htm"> IntersectWith MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror.htm"> Mirror MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror3d.htm"> Mirror3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_move.htm"> Move MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_offset.htm"> Offset MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate.htm"> Rotate MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate3d.htm"> Rotate3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_scaleentity.htm"> ScaleEntity MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_setxdata.htm"> SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   GetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_highlight.htm"> Highlight MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_intersectwith.htm"> IntersectWith MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror.htm"> Mirror MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror3d.htm"> Mirror3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_move.htm"> Move MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_offset.htm"> Offset MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate.htm"> Rotate MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate3d.htm"> Rotate3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_scaleentity.htm"> ScaleEntity MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_setxdata.htm"> SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   Highlight MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_intersectwith.htm"> IntersectWith MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror.htm"> Mirror MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror3d.htm"> Mirror3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_move.htm"> Move MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_offset.htm"> Offset MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate.htm"> Rotate MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate3d.htm"> Rotate3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_scaleentity.htm"> ScaleEntity MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_setxdata.htm"> SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   IntersectWith MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror.htm"> Mirror MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror3d.htm"> Mirror3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_move.htm"> Move MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_offset.htm"> Offset MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate.htm"> Rotate MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate3d.htm"> Rotate3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_scaleentity.htm"> ScaleEntity MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_setxdata.htm"> SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   Mirror MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_mirror3d.htm"> Mirror3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_move.htm"> Move MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_offset.htm"> Offset MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate.htm"> Rotate MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate3d.htm"> Rotate3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_scaleentity.htm"> ScaleEntity MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_setxdata.htm"> SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   Mirror3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_move.htm"> Move MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_offset.htm"> Offset MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate.htm"> Rotate MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate3d.htm"> Rotate3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_scaleentity.htm"> ScaleEntity MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_setxdata.htm"> SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   Move MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_offset.htm"> Offset MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate.htm"> Rotate MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate3d.htm"> Rotate3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_scaleentity.htm"> ScaleEntity MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_setxdata.htm"> SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   Offset MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate.htm"> Rotate MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate3d.htm"> Rotate3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_scaleentity.htm"> ScaleEntity MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_setxdata.htm"> SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   Rotate MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_rotate3d.htm"> Rotate3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_scaleentity.htm"> ScaleEntity MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_setxdata.htm"> SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   Rotate3D MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_scaleentity.htm"> ScaleEntity MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_setxdata.htm"> SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   ScaleEntity MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_setxdata.htm"> SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   SetXData MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_transformby.htm"> TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   TransformBy MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_update.htm"> Update   Update

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事件 MSITStore:D:\Program%20Files\AutoCAD%202004\help\acadauto.chm::/idh_modified.htm"> Modified   Modified

fjfhgdwfn

负号可以变成正号的啊

多看看ARC的帮助。

rgbjjj265

明经里面的帮助，我研究了，没研究出来。

还是要谢谢你

fjfhgdwfn

你画出了圆弧，圆弧有起终点，又有圆心，难道不会画直线？