生成坐标是建坐标系最常用的一种方法，有无CAD数模情况下均适用，用来建立工件坐标系；步骤1：找正（确定坐标系第一轴）步骤2：旋转（确定坐标系第二轴）步骤3：平移（确定坐标系原点）注意：可以用来找正的元素：平面、圆柱、圆锥。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。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。 RationalDMIS的‘生成坐标系’广泛应用于各种加工中心、检具、模具、零部件等汽车行业、航空航天等各种领域，直观易懂且操作方便； 缸体类（箱体类）零件是典型的一面两销定位、加工，所以测量时建立坐标系使用加工定位的一面两圆。建立坐标系的步骤： （1）定位面（找正第一轴向），根据定位面的大小测量 足够的点数 （2）两个圆（旋转到第二轴向） （3）确定原点1.将工件置于测量机量程中。2.如图测量一个平面和两个圆。在手动测量建系元素前，通过加入“操作者注释”语句引导操作员正确测量。3.手动粗建坐标4.自动精建坐标。 通过赋值/取值粗建坐标建系元素的参数，完成不同规格零件的精确建系过程。$$/* HeaderDMISMN/'Created by [爱科腾瑞科技(北京)有限公司-091520-DEMO] on 星期三, 五月 13, 2020', 4.0UNITS/MM, ANGDEC, MMPSWKPLAN/XYPLANPRCOMP/ONTECOMP/ONFLY/1.0000MODE/MANSNSET/APPRCH, 2.0000SNSET/RETRCT, 2.0000SNSET/DEPTH, 0.0000SNSET/SEARCH, 10.0000SNSET/CLRSRF, 20.0000RECALL/D(MCS)SNSLCT/S(L20-D2.0)GEOALG/BF, LSTSQRGEOALG/ANGLB, DEFALTGEOALG/CIRCLE, LSTSQRGEOALG/ARC, LSTSQRGEOALG/PLANE, LSTSQR$$$$$$*/MODE/MANTEXT/OPER, '请在基准平面上均匀采集5点！'F(PLN1)=FEAT/PLANE,CART,29.5758,-0.6925,0.0000,0.0000,0.0000,1.0000$$ Measurement points are created through actual pointsMEAS/PLANE, F(PLN1), 5 PTMEAS/CART, -18.9190, 26.2315, -0.0000, 0.0000, 0.0000, 1.0000 PTMEAS/CART, -19.2413, -32.4792, -0.0000, 0.0000, 0.0000, 1.0000 PTMEAS/CART, 32.1704, 2.6102, -0.0000, 0.0000, 0.0000, 1.0000 PTMEAS/CART, 80.2611, 30.8740, -0.0000, 0.0000, 0.0000, 1.0000 PTMEAS/CART, 73.6078, -30.6992, -0.0000, 0.0000, 0.0000, 1.0000ENDMESD(CRD1) = DATSET/FA(PLN1), ZDIRD(CRD1) = TRANS/ZORIG, FA(PLN1)TEXT/OPER, '先测量圆（0，0），在测量（X,0）'F(CIRA)=FEAT/CIRCLE,INNER,CART,0.0000,0.0000,-2.6386,0.0000,0.0000,1.0000, 12.0000$$ Measurement points are created through actual pointsMEAS/CIRCLE, F(CIRA), 4 PTMEAS/CART, -0.4924, 5.9798, -2.6386, 0.0821, -0.9966, -0.0000 PTMEAS/CART, -5.9354, -0.8782, -2.6386, 0.9892, 0.1464, -0.0000 PTMEAS/CART, 0.6495, -5.9647, -2.6386, -0.1083, 0.9941, -0.0000 PTMEAS/CART, 5.9668, -0.6305, -2.6386, -0.9945, 0.1051, -0.0000ENDMESF(CIRB)=FEAT/CIRCLE,INNER,CART,60.0000,0.0000,-2.5376,0.0000,0.0000,1.0000, 12.0000$$ Measurement points are created through actual pointsMEAS/CIRCLE, F(CIRB), 4 PTMEAS/CART, 58.6822, 5.8535, -2.5376, 0.2196, -0.9756, -0.0000 PTMEAS/CART, 65.9869, 0.3962, -2.5376, -0.9978, -0.0660, -0.0000 PTMEAS/CART, 59.3753, -5.9674, -2.5376, 0.1041, 0.9946, -0.0000 PTMEAS/CART, 54.0000, -0.0055, -2.5376, 1.0000, 0.0009, -0.0000ENDMES$$ CREATED BY : External-Array Software, Inc$$ 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$$ DI, DJ, DK are the normal vector of the plane that the line lies onM(EASI_2PT_TO_LINE) = Macro/'FEAT1', 'FEAT2', 'FEATLINE', DI, DJ, DK DECL/LOCAL,DOUBLE,DVALUE[6] DECL/LOCAL,INTGR, INDEX1, INDEX2 CALL/M(EASI_GETX_INDEX), FEAT1, INDEX1 CALL/M(EASI_GETX_INDEX), FEAT2, INDEX2 DVALUE[1] = OBTAIN/FA(@FEAT1),INDEX1 DVALUE[2] = OBTAIN/FA(@FEAT1),INDEX1+1 DVALUE[3] = OBTAIN/FA(@FEAT1),INDEX1+2 DVALUE[4] = OBTAIN/FA(@FEAT2),INDEX2 DVALUE[5] = OBTAIN/FA(@FEAT2),INDEX2+1 DVALUE[6] = OBTAIN/FA(@FEAT2),INDEX2+2 F(@FEATLINE) = FEAT/LINE,BND,CART,DVALUE[1],DVALUE[2],DVALUE[3],$ DVALUE[4],DVALUE[5],DVALUE[6],$ DI, DJ, DKENDMACCALL/M(EASI_2PT_TO_LINE),(CIRA),(CIRB),(LN_BF1), 0.0000, 0.0000, 1.0000CONST/LINE,F(LN_BF1),BF,FA(CIRA),FA(CIRB)D(CRD2) = DATSET/FA(PLN1), ZDIR, FA(LN_BF1), XDIR, FA(CIRA), XORIGD(CRD2) = TRANS/ZORIG, FA(PLN1), YORIG, FA(CIRA), XORIG, -0MODE/PROG,MAN$$ MACRO: EASI_CLEARPLN_GOTO$$ FUNCTION: CLEARANCE SURFACE IMPLEMENTATION$$ Move machine CLEAR SURFACE DIST above the current clear surface $$ plane and then move machine parallel to the clear surface plane $$ ALL Macro parameters are in PCS and Current UNITS$$ Last update: 3-1-04 Add mode checking. only works in PROG MODE$$ Last update: 8-24-04 Clear position is based on the surface of$$ $$ This sample DMIS Macro is provided by External-Array Software, Inc.$$ It should be modified for your own use. There is no guarantee for$$ the quality of this Macro. November, 2003M(EASI_CLEARPLN_GOTO) = MACRO/ISNOM, TARX, TARY, TARZ DECL/LOCAL, REAL, CCX, CCY, CCZ, CCI, CCJ, CCK DECL/LOCAL, REAL, CURX, CURY, CURZ, TD, CLRDIST, SDIAM DECL/LOCAL, CHAR, 255, CLRLABEL, FLABEL, MMODE, SNAME MMODE = VALUE/MODE CLRLABEL = VALUE/SNSET, CLRSRF IF/ ( (LEN(CLRLABEL) .GT. 0) .AND. (MMODE .EQ. 'PROG,MAN') ) CLRDIST = VALUE/SNSET, CLRSRF, DIST FLABEL = ASSIGN/'FA' IF/ ISNOM .EQ. 0 FLABEL = ASSIGN/'F' ENDIF CCX = OBTAIN/FLABEL(@CLRLABEL), 3 CCY = OBTAIN/FLABEL(@CLRLABEL), 4 CCZ = OBTAIN/FLABEL(@CLRLABEL), 5 CCI = OBTAIN/FLABEL(@CLRLABEL), 6 CCJ = OBTAIN/FLABEL(@CLRLABEL), 7 CCK = OBTAIN/FLABEL(@CLRLABEL), 8 SNAME = VALUE/SNSLCT SDIAM = OBTAIN/SS(SNAME), 8 CCX = ASSIGN/CCX + CCI * SDIAM/2 CCY = ASSIGN/CCY + CCJ * SDIAM/2 CCZ = ASSIGN/CCZ + CCK * SDIAM/2 CURX = VALUE/GOTOM, XAXIS CURY = VALUE/GOTOM, YAXIS CURZ = VALUE/GOTOM, ZAXIS TD = ASSIGN/(CURX - CCX) * CCI + (CURY - CCY) * CCJ + (CURZ - CCZ) * CCK IF/ TD .LT. CLRDIST TD = ASSIGN/(CLRDIST - TD) GOTO/CURX+CCI*TD, CURY+CCJ*TD, CURZ+CCK*TD ENDIF TD = ASSIGN/(TARX - CCX) * CCI + (TARY - CCY) * CCJ + (TARZ - CCZ) * CCK IF/ TD .LT. CLRDIST TD = ASSIGN/(CLRDIST - TD) GOTO/TARX+CCI*TD, TARY+CCJ*TD, TARZ+CCK*TD ENDIF ENDIF ENDMACSNSET/APPRCH, 2.0000SNSET/RETRCT, 2.0000SNSET/DEPTH, 0.0000SNSET/SEARCH, 10.0000SNSET/CLRSRF, FA(PLN1), 20.0000DECL/COMMON,REAL,PLN1_1_AXPLN1_1_AX = OBTAIN/FA(PLN1)[1],2DECL/COMMON,REAL,PLN1_1_AYPLN1_1_AY = OBTAIN/FA(PLN1)[1],3DECL/COMMON,REAL,PLN1_2_AXPLN1_2_AX = OBTAIN/FA(PLN1)[2],2DECL/COMMON,REAL,PLN1_2_AYPLN1_2_AY = OBTAIN/FA(PLN1)[2],3DECL/COMMON,REAL,PLN1_3_AXPLN1_3_AX = OBTAIN/FA(PLN1)[3],2DECL/COMMON,REAL,PLN1_3_AYPLN1_3_AY = OBTAIN/FA(PLN1)[3],3DECL/COMMON,REAL,PLN1_4_AXPLN1_4_AX = OBTAIN/FA(PLN1)[4],2DECL/COMMON,REAL,PLN1_4_AYPLN1_4_AY = OBTAIN/FA(PLN1)[4],3DECL/COMMON,REAL,PLN1_5_AXPLN1_5_AX = OBTAIN/FA(PLN1)[5],2DECL/COMMON,REAL,PLN1_5_AYPLN1_5_AY = OBTAIN/FA(PLN1)[5],3F(PLN2)=FEAT/PLANE,CART,0,0,0,0.0000,0.0000,1.0000$$ Measurement points are created through actual points$$ CALL/M(EASI_CLEARPLN_GOTO), 1, 0, 0, 4.0000MEAS/PLANE,F(PLN2),5,CLRSRF,FA(PLN1),20.0000,CLRSRF,FA(PLN1),20.0000 PTMEAS/CART, PLN1_1_AX , PLN1_1_AY, 0.0000, 0.0000, 0.0000, 1.0000 CALL/M(EASI_CLEARPLN_GOTO), 1, PLN1_1_AX, PLN1_1_AY, 4.0000 CALL/M(EASI_CLEARPLN_GOTO), 1, PLN1_2_AX, PLN1_2_AY, 4.0000 PTMEAS/CART, PLN1_2_AX , PLN1_2_AY, 0.0000, 0.0000, 0.0000, 1.0000 CALL/M(EASI_CLEARPLN_GOTO), 1, PLN1_2_AX, PLN1_2_AY, 4.0000 CALL/M(EASI_CLEARPLN_GOTO), 1, PLN1_3_AX, PLN1_3_AY, 4.0000 PTMEAS/CART, PLN1_3_AX , PLN1_3_AY, 0.0000, 0.0000, 0.0000, 1.0000 CALL/M(EASI_CLEARPLN_GOTO), 1, PLN1_3_AX, PLN1_3_AY, 4.0000 CALL/M(EASI_CLEARPLN_GOTO), 1, PLN1_4_AX, PLN1_4_AY, 4.0000 PTMEAS/CART, PLN1_4_AX , PLN1_4_AY, 0.0000, 0.0000, 0.0000, 1.0000 CALL/M(EASI_CLEARPLN_GOTO), 1, PLN1_4_AX, PLN1_4_AY, 4.0000 CALL/M(EASI_CLEARPLN_GOTO), 1, PLN1_5_AX, PLN1_5_AY, 4.0000 PTMEAS/CART, PLN1_5_AX , PLN1_5_AY, 0.0000, 0.0000, 0.0000, 1.0000ENDMESD(CRD3) = DATSET/FA(PLN2), ZDIRD(CRD3) = TRANS/ZORIG, FA(PLN2)DECL/COMMON,REAL,CIRA_ZCIRA_Z = OBTAIN/FA(CIRA),6DECL/COMMON,REAL,CIRA_DCIRA_D = OBTAIN/FA(CIRA),10DECL/COMMON,REAL,CIRB_XCIRB_X = OBTAIN/F(CIRB),4DECL/COMMON,REAL,CIRB_YCIRB_Y = OBTAIN/F(CIRB),5DECL/COMMON,REAL,CIRB_ZCIRB_Z = OBTAIN/FA(CIRB),6DECL/COMMON,REAL,CIRB_DCIRB_D = OBTAIN/FA(CIRB),10MODE/AUTO,PROG,MANF(CIRC) = FEAT/CIRCLE,INNER,CART, 0,0,CIRA_Z, 0,0,1, CIRA_D$$ Empty Meas BlockMEAS/CIRCLE, F(CIRC),8ENDMESF(CIRD) = FEAT/CIRCLE,INNER,CART, CIRB_X,CIRB_Y ,CIRB_Z, 0,0,1, CIRB_D$$ Empty Meas BlockMEAS/CIRCLE, F(CIRD), 8ENDMESCALL/M(EASI_2PT_TO_LINE),(CIRC),(CIRD),(LN_BF2), 0.0000, 0.0000, 1.0000CONST/LINE,F(LN_BF2),BF,FA(CIRC),FA(CIRD)D(CRD4) = DATSET/FA(PLN2), ZDIR, FA(LN_BF2), XDIR, FA(CIRC), XORIGD(CRD4) = TRANS/ZORIG, FA(PLN2), YORIG, FA(CIRC), XORIG, -0来源：山涧果子
