[讨论]如何获得一个对象其正确的在UCS中的边界坐标?

e2002

[讨论]如何获得一个对象其正确的在UCS中的边界坐标?

例如一个矩形(Lwpolyline),现在的情况是: 这个矩形不平行与WCS的X,Y ,而是平行与当前UCS(已经plan显示了),用vla-GetBoundingBox返回的还是WCS中的边界的MinPoint和 MaxPoint.这显然不是我们想要得到的结果.

请教各位大虾,有没有什么办法获得正确的边界最大最下值的坐标?

e2002

每人顶?沉了,,,,唉....

雪山飞狐_lzh

Signature

RetVal = object.TranslateCoordinates(OriginalPoint, From, To, Disp[, OCSNormal])

Object

MSITStore:D:\Program%20Files\AutoCAD%202005\help\acadauto.chm::/idh_utility_object.htm" target="_blank" >Utility
The object or objects this method applies to.

OriginalPoint

Variant (three-element array of doubles); input-only
The 3D WCS coordinates specifying the original coordinates to be translated. This parameter can be treated as a point or a displacement vector depending on the value of Disp.

From

AcCoordinateSystem enum; input-only
The coordinate system from which the point originates.

acWorld

acUCS

acOCS

acDisplayDCS

acPaperSpaceDCS

To

AcCoordinateSystem enum; input-only
The coordinate system to which the point will be converted.

acWorld

acUCS

acOCS

acDisplayDCS

acPaperSpaceDCS

Disp

Integer; input-only
A displacement vector flag.

TRUE: OriginalPoint is treated as a displacement vector.

FALSE: OriginalPoint is treated as a point.

OCSNormal

Variant (three-element array of doubles); input-only;optional
The normal for the OCS.

RetVal

Variant (three-element array of doubles)
The translated 3D coordinate.

alin

将矩形变换到WCS，应用Getboundingbox方法，在变换回去。

e2002

alin发表于2004-8-23 21:04:00将矩形变换到WCS，应用Getboundingbox方法，在变换回去。

想来想去可能只有这个办法了,但是如果当前UCS是一个任意的,没一个面平行于WCS,如何?

alin

Set a temporary Object UCS