我在测量过程中经常需构造一理论平面,按照说明书所说对一平面进行偏置,最终的结果都得到两字--"失败",请教各位大侠,如何偏置一平面?请详细说明.谢谢.

pcdmis中不能直接offset平面,以前已討論過這個問題,你用右上角"檢索"功能尋找"平面偏置"仔細看看以前的貼子.

要对平面进行偏置,所用的命令不是"OFFSET"而是"PARALLEL",我作了一个简单的例子: PLN1 =FEAT/PLANE,RECT THEO/20,10,5,0,0,1 ACTL/20,10,5,0,0,1 MEAS/PLANE,4 HIT/BASIC,20,10,5,0,0,1,0,0,0,USE THEO = YES HIT/BASIC,20,10,5,0,0,1,0,0,0,USE THEO = YES HIT/BASIC,20,10,5,0,0,1,0,0,0,USE THEO = YES HIT/BASIC,20,10,5,0,0,1,0,0,0,USE THEO = YES ENDMEAS/ PT1 =GENERIC/POINT,DEPENDENT,RECT,$ NOM/XYZ,41,0,0,$ MEAS/XYZ,41,0,0,$ NOM/IJK,0,0,1,$ MEAS/IJK,0,0,1 PLN3 =FEAT/PLANE,RECT THEO/41,0,0,0,0,1 ACTL/41,0,0,0,0,1 CONSTR/PLANE,PLTO,PLN1,PT1 首先你要有个起始面PLN1,然后很重要的是要在偏置的地方造一个点PT1,接着到CONSTRUCT里面先选面再选点就做成了. 再看看OFFSET是怎么用的: PNT1 =AUTO/VECTOR POINT, SHOWALLPARAMS=YES THEO/12,12,-5,0.000382,0.9997602,-0.021896 ACTL/12,12,-5,0.000382,0.9997602,-0.021896 TARG/12,12,-5,0.000382,0.9997602,-0.021896 THEO_THICKNESS = 0, RECT, SNAP = NO ,$ AUTO MOVE = NO, DISTANCE = 0 PNT2 =AUTO/VECTOR POINT, SHOWALLPARAMS=YES THEO/31,-1,-5,0.000382,0.9997602,-0.021896 ACTL/31,-1,-5,0.000382,0.9997602,-0.021896 TARG/31,-1,-5,0.000382,0.9997602,-0.021896 THEO_THICKNESS = 0, RECT, SNAP = NO ,$ AUTO MOVE = NO, DISTANCE = 0 PNT3 =AUTO/VECTOR POINT, SHOWALLPARAMS=YES THEO/-6,-11,-5,0.000382,0.9997602,-0.021896 ACTL/-6,-11,-5,0.000382,0.9997602,-0.021896 TARG/-6,-11,-5,0.000382,0.9997602,-0.021896 THEO_THICKNESS = 0, RECT, SNAP = NO ,$ AUTO MOVE = NO, DISTANCE = 0 PLN4 =FEAT/PLANE,RECT THEO/12.351,0.334,-8.986,0.0044709,0.0834575,-0.9965013 ACTL/12.351,0.334,-8.986,0.0044709,0.0834575,-0.9965013 CONSTR/PLANE,OFFSET ID = PNT1,PNT2,PNT3,, OFFSET = 3,4,5 DIM DIST1= 3D DISTANCE FROM POINT PNT1 TO PLANE PLN4, NO_RADIUS UNITS=MM ,$ GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH AX NOMINAL +TOL -TOL MEAS MAX MIN DEV OUTTOL M 3.000 0.010 0.010 3.000 3.000 3.000 0.000 0.000 ----#---- DIM DIST2= 3D DISTANCE FROM POINT PNT2 TO PLANE PLN4, NO_RADIUS UNITS=MM ,$PART NUMBER=test2 DATE=9/3/2004 TIME=9:16:00 AM PAGE#=2 GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH AX NOMINAL +TOL -TOL MEAS MAX MIN DEV OUTTOL M 4.000 0.010 0.010 4.000 4.000 4.000 0.000 0.000 ----#---- DIM DIST3= 3D DISTANCE FROM POINT PNT3 TO PLANE PLN4, NO_RADIUS UNITS=MM ,$ GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH AX NOMINAL +TOL -TOL MEAS MAX MIN DEV OUTTOL M 5.000 0.010 0.010 5.000 5.000 5.000 0.000 0.000 ----#---- 用OFFSET做面是对点进行OFFSET,所以先要有点PNT1,2,3 和各点的偏置值,然后到CONSTRUCT里面选OFFSET并把所有INFO输进就成啦. 希望对你有帮助.

谢谢指教,太感谢了.