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Construct Plane: using 2 surfaces what is the best approach?

BIGWIG7
I have a datum that is 2 separate plane surfaces with opposing vectors but on the same center line.

What is the best approach: creating a few independent points on both surfaces and combining them into one plane OR creating 2 separate planes and then Constructing a plane from them?

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  • Construct a plane out of the two planes. Not sure if this would work being two separate vectors.

    One thought: 

    PLN1 =FEAT/CONTACT/PLANE/DEFAULT,CARTESIAN,TRIANGLE,LEAST_SQR
THEO/<25,0,0>,<0,0,1>
ACTL/<25,0,0>,<0,0,1>
TARG/<25,0,0>,<0,0,1>
ANGLE VEC=<1,0,0>,RADIAL
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=5,NUMROWS=1
SPACER=6
AVOIDANCE MOVE=NO
SHOW HITS=NO
PLN2 =FEAT/CONTACT/PLANE/DEFAULT,CARTESIAN,TRIANGLE,LEAST_SQR
THEO/<-25,0,0>,<0,0,-1>
ACTL/<-25,0,0>,<0,0,-1>
TARG/<-25,0,0>,<0,0,-1>
ANGLE VEC=<1,0,0>,RADIAL
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=5,NUMROWS=1
SPACER=6
AVOIDANCE MOVE=NO
SHOW HITS=NO
PLN3 =FEAT/PLANE,CARTESIAN,TRIANGLE,NO
THEO/<-25,0,0>,<0,0,1>
ACTL/<-25,0,0>,<0,0,1>
CONSTR/PLANE,REV,PLN2
PLN4 =FEAT/PLANE,CARTESIAN,TRIANGLE,NO,LEAST_SQR
THEO/<0,0,0>,<0,0,1>
ACTL/<0,0,0>,<0,0,1>
CONSTR/PLANE,BF,PLN1.HIT[1..PLN1.NUMHITS,PLN3.HIT[1..PLN3.NUMHITS],,
OUTLIER_REMOVAL/OFF,3
FILTER/OFF,WAVELENGTH=0​


    Then you could play around with primary datum fitting algorithms.
Reply
  • Construct a plane out of the two planes. Not sure if this would work being two separate vectors.

    One thought: 

    PLN1 =FEAT/CONTACT/PLANE/DEFAULT,CARTESIAN,TRIANGLE,LEAST_SQR
THEO/<25,0,0>,<0,0,1>
ACTL/<25,0,0>,<0,0,1>
TARG/<25,0,0>,<0,0,1>
ANGLE VEC=<1,0,0>,RADIAL
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=5,NUMROWS=1
SPACER=6
AVOIDANCE MOVE=NO
SHOW HITS=NO
PLN2 =FEAT/CONTACT/PLANE/DEFAULT,CARTESIAN,TRIANGLE,LEAST_SQR
THEO/<-25,0,0>,<0,0,-1>
ACTL/<-25,0,0>,<0,0,-1>
TARG/<-25,0,0>,<0,0,-1>
ANGLE VEC=<1,0,0>,RADIAL
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=5,NUMROWS=1
SPACER=6
AVOIDANCE MOVE=NO
SHOW HITS=NO
PLN3 =FEAT/PLANE,CARTESIAN,TRIANGLE,NO
THEO/<-25,0,0>,<0,0,1>
ACTL/<-25,0,0>,<0,0,1>
CONSTR/PLANE,REV,PLN2
PLN4 =FEAT/PLANE,CARTESIAN,TRIANGLE,NO,LEAST_SQR
THEO/<0,0,0>,<0,0,1>
ACTL/<0,0,0>,<0,0,1>
CONSTR/PLANE,BF,PLN1.HIT[1..PLN1.NUMHITS,PLN3.HIT[1..PLN3.NUMHITS],,
OUTLIER_REMOVAL/OFF,3
FILTER/OFF,WAVELENGTH=0​


    Then you could play around with primary datum fitting algorithms.
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