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发表于 2011-8-27 19:25:00
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AcDbRotatedDimension(
double rotation,
const AcGePoint3d& xLine1Point,
const AcGePoint3d& xLine2Point,
const AcGePoint3d& dimLinePoint,
const ACHAR * dimText = NULL,
AcDbObjectId dimStyle = AcDbObjectId::kNull);
rotation Input rotation angle (in radians) for the dimension
xLine1Point Input start point (in WCS coordinates) of first extension line
xLine2Point Input start point (in WCS coordinates) of second extension line
dimLinePoint Input point (in WCS coordinates) on dimension line itself
dimText Input text string to use as the dimension annotation
dimStyle Input object ID of AcDbDimStyleTableRecord to use
以上是旋转标注的构造函数，第四人参数const AcGePoint3d& dimLinePoint就是设置H高度值的。
或者用他的编辑函数：
Acad::ErrorStatus
setDimLinePoint(
const AcGePoint3d& unnamed);
unnamed Input point (in WCS coordinates) that will lie on the dimension line
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