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Old 02-14-2011, 12:42 PM   #1
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Pete Chapman
Manchester, United Kingdom
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Question Finding the length of the contents of a group

I'm trying to work out if there is a better way to get the dimentions of the contents of a group.

At the moment I can select the two objects at the extremities, and then assign locators and create a distance dimension node, what I want to be able to do is select the group and return a float value of the total length in the X and Y axis.

Kind regards,

Old 02-14-2011, 02:16 PM   #2
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André Hitsoy
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Try this. Should work on meshes, groups, anything, really, including multiple selections:
string $sel[] = `ls -sl`; string $evalItems[] = {}; for ($each in $sel){ string $transforms[] = `listRelatives -c -ad -typ "transform" $each `; if (`nodeType $each` == "transform"){ $transforms[size($transforms)] = $each; } for ($transform in $transforms){ string $shapes[] = `listRelatives -s $transform`; if (`size($shapes)`!= 0){ $evalItems[size($evalItems)] = $transform; } } } // print($evalItems) float $bBminX[] = {}; float $bBmaxX[] = {}; float $bBmaxY[] = {}; float $bBminY[] = {}; float $bBmaxZ[] = {}; float $bBminZ[] = {}; for ($each in $evalItems){ float $bB[] = `polyEvaluate -b $each`; $bBminX[size($bBminX)] = $bB[0]; $bBmaxX[size($bBmaxX)] = $bB[1]; $bBminY[size($bBminY)] = $bB[2]; $bBmaxY[size($bBmaxY)] = $bB[3]; $bBminZ[size($bBminZ)] = $bB[4]; $bBmaxZ[size($bBmaxZ)] = $bB[5]; } float $bBminXSorted[] = `sort $bBminX`; float $bBmaxXSorted[] = `sort $bBmaxX`; float $bBminYSorted[] = `sort $bBminY`; float $bBmaxYSorted[] = `sort $bBmaxY`; float $bBminZSorted[] = `sort $bBminZ`; float $bBmaxZSorted[] = `sort $bBmaxZ`; float $totalMinX = $bBminXSorted[0]; float $totalMaxX = $bBmaxXSorted[size($bBmaxXSorted)-1]; float $totalMinY = $bBminYSorted[0]; float $totalMaxY = $bBmaxYSorted[size($bBmaxYSorted)-1]; float $totalMinZ = $bBminZSorted[0]; float $totalMaxZ = $bBmaxZSorted[size($bBmaxZSorted)-1]; float $width = abs($totalMaxX - $totalMinX); float $height = abs($totalMaxY - $totalMinY); float $length = abs($totalMaxZ - $totalMinZ); float $diagonalMinMaxXY = sqrt(pow($width,2) + pow($height,2)); float $diagonalMinMaxXYZ = sqrt(pow($diagonalMinMaxXY,2) + pow($length,2)); print ("Width (X) is " + $width + ".\n"); print ("Height (Y) is " + $height + ".\n"); print ("Length (Z) is " + $length + ".\n"); print ("The 2d distance from minX,minY to maxX,maxY is " + $diagonalMinMaxXY + ".\n"); print ("The 3d distance from minX,minY,minZ to maxX,maxY,maxZ is " + $diagonalMinMaxXYZ + ".\n");
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Old 02-14-2011, 02:16 PM   #3
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