manipulating arrays question

Hope this helps.


Back to work after a few days off.
The CODE IN RED needs to be changed to the CODE IN BLUE.

the constructed feature set needs to input the number of hits.

Take the CODE IN RED out.



Proper syntax is of the utmost importance. Arrgghh!

Or change to:
ASSIGN/VAR1=DOT((SCN1.HIT[1..scn1.numhits].XYZ-SCN1.HIT[1..scn1.numhits].TXYZ),SCN1.HIT[1..scn1.numhits].TIJK)

I'm getting a whole lot of pretty red text. I guess I don't understand what you are doing exactly with these parts: DOT(--FIRST PART--),SCN1.HIT[1..numhits].TIJK) is that a second parameter?? I don't know the DOT() command ????

The parts I can get to "work" (color blue) return zero.
I don't understand this stuff.





DIM LOC1= LOCATION OF POINT P1
AX MEAS
T -0.0046
END OF DIMENSION LOC1
DIMINFO/LOC1;ICON,DIMID,FEATID,VERT,HORIZ, ,$
HEADINGS,GRAPH AXIS;TOL, , , , , , , , ,$
T, , , , , , , , , , , , , , , ,
DIM LOC2= LOCATION OF POINT P2
AX MEAS
T -0.0047
END OF DIMENSION LOC2
DIMINFO/LOC2;ICON,DIMID,FEATID,VERT,HORIZ, ,$
HEADINGS,GRAPH AXIS;TOL, , , , , , , , ,$
T, , , , , , , , , , , , , , , ,
DIM LOC3= LOCATION OF POINT P3
AX MEAS
T -0.0050
END OF DIMENSION LOC3
DIMINFO/LOC3;ICON,DIMID,FEATID,VERT,HORIZ, ,$
HEADINGS,GRAPH AXIS;TOL, , , , , , , , ,$
T, , , , , , , , , , , , , , , ,






ASSIGN/ARY1=ARRAY( LOC1.T.MEAS,LOC2.T.MEAS,LOC3.T.MEAS) ASSIGN/R1=SORTUP(ARY1)






ASSIGN/MAX_R1=MAX(R1)
ASSIGN/MIN_R1=MIN(R1)
COMMENT/REPT,
"max is "+MAX_R1
"min is "+MIN_R1




DIM LOC1= LOCATION OF POINT P1
AX MEAS
T -0.0046
DIM LOC2= LOCATION OF POINT P2
AX MEAS
T -0.0047
DIM LOC3= LOCATION OF POINT P3
AX MEAS
T -0.0050
max is -0.0046
min is -0.005



the bold part is what i want to know how to get around (cuz i can't c+P). maybe i wasnt cleatr enough in my question

The DOT command is the dot product math function. The formula will create an array of all the t-values.

i got the formula to work (turn blue at least), and I think I understand what is going on there... but still reporting zeros.


T value for all 17 hits in scan one are dimensioned up here

SCN1 =FEAT/SET,CARTESIAN
THEO/<-0.0034,-0.0671,1.4152>,<0,0,1>
ACTL/<-0.0042,-0.0575,1.415>,<0,0,1>
CONSTR/SET,BASIC,P1,P2,P3,P4,P5,P6,P7,P8,P9,P10,P11,P12,P13,P14,P15,P16,P17,,

ASSIGN/VAR1=DOT((SCN1.HIT[1..SCN1.NUMHITS].XYZ-SCN1.HIT[1..NUMHITS].TXYZ),SCN1.HIT[1..NUMHITS].TIJK)
ASSIGN/MAX_VAR1=MAX(VAR1)
ASSIGN/MIN_VAR1=MIN(VAR1)
COMMENT/REPT,
"ORBIT RANGE IS "+MIN_VAR1+" TO "+MAX_VAR1

report reads : "orbit range is 0 to 0"


this line will not work: ASSIGN/PROF_VAR2=FORMAT("%.4f",VAR2)

Is this your actual code?

You have P 13


You should have P13. No space

No, there is no space there in the code. I've moved on to a different program now, tried the formula and other code again, and as before it 'works' but still reports zeroes.

Maybe have to change numhits to 17. Numhits works for a scanned feature, or measured feature. Maybe not a constructed feature set.sorry.

that reports values, but not anything i can use.
"range is -0.531 to 0.3018"
the answer in this case should be -0.0091 to -0.0102

Is this a code method you use yourself, am i missing something, or is maybe this dot product approach not going to work out for what I want to use it for?

Maybe you could try to do it with points only, in a loop. DPH51 uses this formula from a long time and it works fine !
If you try something like :
ASSIGN/VAR2=""
ASSIGN/ I=1
LOOP from 1 to 17
ASSIGN/VAR1="P"+I
ASSIGN/VAR2=VAR2+","+DOT(VAR1.XYZ-VAR1.TXYZ,VAR1.TIJK)
ASSIGN/I=I+1
End loop
Then you calculate min and max of Var2.

I'm not sure of the syntax, I'm not at the CMM now, but I think it should work.

Why not just turn on MAX and MIN reporting for the profile tolerance using the dimension format command? (F10 / dimension tab)