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23 lines
542 B
Plaintext
23 lines
542 B
Plaintext
fn CalculateVolumeAndCentreOfMass obj =
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(
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local Volume= 0.0
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local Centre= [0.0, 0.0, 0.0]
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local theMesh = snapshotasmesh obj
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local numFaces = theMesh.numfaces
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for i = 1 to numFaces do
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(
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local Face= getFace theMesh i
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local vert2 = getVert theMesh Face.z
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local vert1 = getVert theMesh Face.y
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local vert0 = getVert theMesh Face.x
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local dV = Dot (Cross (vert1 - vert0) (vert2 - vert0)) vert0
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Volume+= dV
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Centre+= (vert0 + vert1 + vert2) * dV
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)
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delete theMesh
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Volume /= 6
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Centre /= 24
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Centre /= Volume
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#(Volume,Centre)
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)
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