Conversion of wireframe to ACIS solid models for 21/2-D engineering components

Vosniakos, G

dc.contributor.author	Vosniakos, G	en
dc.date.accessioned	2014-03-01T01:13:39Z
dc.date.available	2014-03-01T01:13:39Z
dc.date.issued	1998	en
dc.identifier.issn	0268-3768	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12630
dc.subject	ACIS	en
dc.subject	CAD model conversion	en
dc.subject	IGES	en
dc.subject	Solid modelling	en
dc.subject	Wireframe modelling	en
dc.subject.classification	Automation & Control Systems	en
dc.subject.classification	Engineering, Manufacturing	en
dc.subject.other	Algorithms	en
dc.subject.other	C (programming language)	en
dc.subject.other	Computer simulation	en
dc.subject.other	Mobius rule	en
dc.subject.other	Ray casting algorithms	en
dc.subject.other	Wireframe models	en
dc.subject.other	Computer aided design	en
dc.title	Conversion of wireframe to ACIS solid models for 21/2-D engineering components	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/BF01188415	en
heal.identifier.secondary	http://dx.doi.org/10.1007/BF01188415	en
heal.language	English	en
heal.publicationDate	1998	en
heal.abstract	Wireframe models need to be converted to solid models as the latter tend to become more widespread, consistent and affordable. A conversion algorithm for manifold objects was defined to obtain ACIS, the de facto standard B-rep model from a neutral IGES wireframe model and was implemented in C++ in successive stages as follows. All potential surfaces are found first. The entities lying on the same surface are examined in order to form closed profile-loops. Loop nesting is examined according to a ray casting algorithm. Adjacency and nesting of loops is used in order to assign traversal directions to all edges according to the Möbius rule. Invalid profiles (those containing edges belonging to more than two loops) are searched for and successively removed. The final test is that of edge type. If the majority of edges turn out to be concave, the traversal sign of all edges is reversed, so that the body is solid in empty space and not the other way around. For engineering components the algorithm adequately resolves all singular cases.	en
heal.publisher	SPRINGER-VERLAG LONDON LTD	en
heal.journalName	International Journal of Advanced Manufacturing Technology	en
dc.identifier.doi	10.1007/BF01188415	en
dc.identifier.isi	ISI:000073727500006	en
dc.identifier.volume	14	en
dc.identifier.issue	3	en
dc.identifier.spage	199	en
dc.identifier.epage	209	en