文档介绍：34ViewTogglebetween3-viewportand4-viewportdisplay在3视图与4视图格局中切换3DfaceDrawa3-Dpolygonmeshface画三维多边形网格面3ViewThree-viewportlayout3视图窗口布局4ViewFour-viewportlayout4视图窗口布局AddNextUAddthenextcontrolpointintheu-directiontotheselection在U方向上增加下一个控制点AddNextVAddthenextcontrolpointinthev-directiontotheselection在V方向上增加下一个控制点AddPrevUAddthepreviouscontrolpointintheu-directiontotheselection在U向上增加前一个控制点AddPrevVAddthepreviouscontrolpointinthev-directiontotheselection在V向上增加前一个控制点AlignBackgroundBitmapAlignabackgroundbitmap定位调准背景图AlignProfilesAligntwocurves定位调准两条曲线AllCPlanesThroughPtMoveallconstructionplanesthroughapoint移动所有基准面通过一点AllLayersOnTurnalllayerson打开所有的层AlongTrackalongaline沿着一条线的轨迹移动AngleMeasuretheanglebetweentwolines测量两条线间的夹角ApplyCrvApplyacurvetoasurface将曲线投影到面上ApplyMeshApplyameshtosurface将网格投射到面上ArcDrawanarc画弧线Arc3PtDrawanarcthroughthreepoints通过三点画一弧线ArcDirDrawanarcbyendpointsanddirection通过未端点及方向画一弧线ArcSERDrawanarcbybeginningpoint,endpoint,andradius通过起始点、端点及半径画一弧线ArcTTRDrawanarctangenttotwocurves画一条弧线与两曲线相切AreaCalculatetheareaofasurfaceorpolysurface计算曲面与多边形表面的面积AreaCentroidCalculatetheareacentroidofasurfaceorpolysurface找出曲面与多边形表面的中心点AreaMomentsCalculatetheareamomentsofasurfaceorpolysurface计算曲面与多边形表面的几何面积(矩)hatbisectstwolines画一条等分另两条线的直线BlendBlendbetweentwocurves粘合两条曲线BlendSrfBlendtwosurfaces粘合两个表面BooleanDifferenceBooleandifference布尔运算---差集BooleanIntersectionBooleanintersection布尔运算---交集Boolea