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Question Boolean Volumes G4Union 

Keywords: G4union boolean
Forum: Geometry
Date: 31 Oct, 2006
From: Jean-stephane Ricol <ricol@cenbg.in2p3.fr>

Hi, By having a look on the previous posts concerning my topic, it looks like there has been several bugs about boolean volumes. Im using v7.1 and in my case also it seems there is a strange problem : I want to create a grill. The easiest way that came in my mind was to define the grill as an UNION of rows and lines. Unfortunately when processing the code it happens that some lines/rows appear and some do not. And I get this message :

BooleanProcessor::triangulateContour : could not generate a triangle (infinite loop)

BooleanProcessor: boolean operation failed
BooleanProcessor::assembleFace(326) : could not find next edge of the contour
BooleanProcessor: boolean operation failed
BooleanProcessor::assembleFace(331) : could not find next edge of the contour
BooleanProcessor: boolean operation failed
BooleanProcessor::triangulateContour : could not generate a triangle (infinite loop)
BooleanProcessor: boolean operation failed
BooleanProcessor::triangulateContour : could not generate a triangle (infinite loop)
BooleanProcessor: boolean operation failed

Does anybody understand the problem ? Why some row/line are ok and not the other ones ? Is my method the proper one to construct a grill or should I try something else ?

Thank you

Jean-stephane

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1 None: Re: Boolean Volumes G4Union   (John Allison - 31 Oct, 2006)
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