1.第一步： 找正（确定坐标系第一轴） 注意：可以用来找正的元素：平面、圆柱、圆锥。2.第二步： 旋转（确定坐标系第二轴） 第二基准：通过直径15mm孔和直径12mm孔的轴线（两孔最佳拟合直线） 可以用来旋转的元素：直线、 圆柱、圆锥等。可简化为线元素或者构造为线元素的线性元素。3.第三步： 平移（确定坐标系原点） 可以平移的元素 一般为点元素或者圆等可以简化为点元素的点形元素。 4.第四步： 通过输入角度绕Y轴做附加旋转。 通过输入图纸上的角度进行坐标系旋转。这个角度可以通过正切函数计算。绕Y轴旋转，输入29.25°。注意：也可以使用高级功能三角函数输入。在该例子中：输入ATAN（14/25）*3.1415926/180或RTOD(ATAN2(14,25))5.第五步： 将坐标系平移到两个孔中间：$$/* HeaderDMISMN/'Created by [爱科腾瑞科技(北京)有限公司-091520-DEMO] on Monday, April 20, 2020', 4.0UNITS/MM, ANGDEC, MMPSWKPLAN/XYPLANPRCOMP/ONTECOMP/ONFLY/1.0000MODE/MANSNSET/APPRCH, 2.0000SNSET/RETRCT, 2.0000SNSET/DEPTH, 0.0000SNSET/SEARCH, 10.0000SNSET/CLRSRF, 50.0000RECALL/D(MCS)SNSLCT/S(L20-D2.0_A90_B90)GEOALG/BF, LSTSQRGEOALG/ANGLB, DEFALTGEOALG/CIRCLE, LSTSQRGEOALG/ARC, LSTSQRGEOALG/PLANE, LSTSQR$$$$$$*/MODE/MANF(PLN1)=FEAT/PLANE,CART,14.1458,0.0000,2.5630,0.0000,-1.0000,0.0000$$ Measurement points are created through actual pointsMEAS/PLANE, F(PLN1), 4 PTMEAS/CART, -11.2317, -0.0000, 25.6306, 0.0000, -1.0000, 0.0000 PTMEAS/CART, -22.6703, -0.0000, -25.2883, 0.0000, -1.0000, 0.0000 PTMEAS/CART, 43.7716, -0.0000, -21.2560, 0.0000, -1.0000, 0.0000 PTMEAS/CART, 46.7136, -0.0000, 31.1658, 0.0000, -1.0000, 0.0000ENDMESD(CRD1) = DATSET/FA(PLN1), -YDIRF(CIR1)=FEAT/CIRCLE,INNER,CART,-25.0000,3.3692,-13.0000,-0.0000,-1.0000,0.0000, 15.0000$$ Measurement points are created through actual pointsMEAS/CIRCLE, F(CIR1), 4 PTMEAS/CART, -27.5571, 3.3692, -5.9494, 0.3409, -0.0000, -0.9401 PTMEAS/CART, -17.5025, 3.3692, -13.1924, -0.9997, -0.0000, 0.0257 PTMEAS/CART, -24.0747, 3.3692, -20.4427, -0.1234, -0.0000, 0.9924 PTMEAS/CART, -32.0020, 3.3692, -15.6875, 0.9336, -0.0000, 0.3583ENDMESF(CIR2)=FEAT/CIRCLE,INNER,CART,25.0000,3.1703,15.0000,-0.0000,-1.0000,0.0000, 12.0000$$ Measurement points are created through actual pointsMEAS/CIRCLE, F(CIR2), 4 PTMEAS/CART, 23.1277, 3.1703, 20.7004, 0.3120, -0.0000, -0.9501 PTMEAS/CART, 30.9923, 3.1703, 15.3033, -0.9987, -0.0000, -0.0505 PTMEAS/CART, 26.1229, 3.1703, 9.1060, -0.1872, -0.0000, 0.9823 PTMEAS/CART, 20.2503, 3.1703, 11.3339, 0.7916, -0.0000, 0.6110ENDMES$$ CREATED BY : External-Array Software, Inc$$ DATE : Jan 19, 2009$$ DISLAIMER: $$ This Macro has been tested internally but not been tested with$$ other DMIS compatible software. This Macro is provided as sample$$ and can be modifed for your own use. External-Array doesn't not $$ guarantee the quality of this Macro.$$ FUNCION: Create a nominal line using two actual features$$ DI, DJ, DK are the normal vector of the plane that the line lies onM(EASI_2PT_TO_LINE) = Macro/'FEAT1', 'FEAT2', 'FEATLINE', DI, DJ, DK DECL/LOCAL,DOUBLE,DVALUE[6] DECL/LOCAL,INTGR, INDEX1, INDEX2 CALL/M(EASI_GETX_INDEX), FEAT1, INDEX1 CALL/M(EASI_GETX_INDEX), FEAT2, INDEX2 DVALUE[1] = OBTAIN/FA(@FEAT1),INDEX1 DVALUE[2] = OBTAIN/FA(@FEAT1),INDEX1+1 DVALUE[3] = OBTAIN/FA(@FEAT1),INDEX1+2 DVALUE[4] = OBTAIN/FA(@FEAT2),INDEX2 DVALUE[5] = OBTAIN/FA(@FEAT2),INDEX2+1 DVALUE[6] = OBTAIN/FA(@FEAT2),INDEX2+2 F(@FEATLINE) = FEAT/LINE,BND,CART,DVALUE[1],DVALUE[2],DVALUE[3],$ DVALUE[4],DVALUE[5],DVALUE[6],$ DI, DJ, DKENDMACCALL/M(EASI_2PT_TO_LINE),(CIR1),(CIR2),(LN_BF1), -0.0000, -1.0000, 0.0000CONST/LINE,F(LN_BF1),BF,FA(CIR1),FA(CIR2)D(CRD2) = ROTATE/YAXIS, FA(LN_BF1), XDIRD(CRD3) = TRANS/XORIG, FA(CIR1), YORIG, FA(PLN1), ZORIG, FA(CIR1)D(CRD4) = ROTATE/YAXIS, RTOD(ATAN2(14,25))D(CRD5) = TRANS/XORIG, 25, YORIG, 0, ZORIG, 14来源：山涧果子
