测量大圆弧的标注，也称为折角半径标注。

折角半径标注

要编辑或查询折角半径标注，可使用以下的方法和属性：

方法 ArrayPolar ArrayRectangular Copy Delete GetBoundingBox GetExtensionDictionary GetXData Highlight IntersectWith Mirror Mirror3D Move Rotate Rotate3D ScaleEntity SetXData TransformBy Update

属性 AltRoundDistance AltSuppressLeadingZeros AltSuppressTrailingZeros AltSuppressZeroFeet AltSuppressZeroInches AltTextPrefix AltTextSuffix AltTolerancePrecision AltToleranceSuppressLeadingZeros AltToleranceSuppressTrailingZeros AltToleranceSuppressZeroFeet AltToleranceSuppressZeroInches AltUnits AltUnitsFormat AltUnitsPrecision AltUnitsScale Application ArrowheadBlock ArrowheadSize ArrowheadType Center CenterMarkSize CenterType ChordPoint DecimalSeparator DimensionLineColor DimensionLineWeight DimLineSuppress Document Fit ForceLineInside FractionFormat Handle HasExtensionDictionary HorizontalTextPosition Hyperlinks JogAngle JogLocation Layer LinearScaleFactor Linetype LinetypeScale Lineweight Measurement Normal ObjectID ObjectName OverrideCenter OwnerID PlotStyleName PrimaryUnitsPrecision Rotation RoundDistance ScaleFactor StyleName SuppressLeadingZeros SuppressTrailingZeros SuppressZeroFeet SuppressZeroInches TextColor TextGap TextHeight TextInside TextInsideAlign TextMovement TextOutsideAlign TextOverride TextPosition TextPrefix TextRotation TextStyle TextSuffix ToleranceDisplay ToleranceHeightScale ToleranceJustification ToleranceLowerLimit TolerancePrecision ToleranceSuppressLeadingZeros ToleranceSuppressTrailingZeros ToleranceSuppressZeroFeet ToleranceSuppressZeroInches ToleranceUpperLimit TrueColor UnitsFormat VerticalTextPosition Visible

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