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Saturday, November 26, 2011

Fwd: Polygonica to support AMF format.

---------- Forwarded message ----------
From: "Nigel Starling" <>
Date: Nov 24, 2011 8:21 AM
Subject: Polygonica to support AMF format.
To: <>

Professor Lipson invited me to the group to announce our latest software release, so apologies for the advert.

Polygonica, the Polygon SolidModeling toolkit from MachineWorks,
is a software toolkit for carrying out a wide range of geometric operations on 3-d models such as automatic solid healing, fixing self-intersections, slicing and other Boolean operations. See and
To support customers in Additive Manufacturing we have extended the existing input and output file formats to include AMF.
As a developer I was impressed with the clarity of the specification and we were able to quickly develop the XML parser and encoder for the 3-d geometry.
Coming late to this group a couple of features of the specification seemed curious. Maybe someone can assist with a brief history lesson ?
1.  Compressed format.
A compressed data file may take less file-space but takes longer to parse. Why was this option chosen rather than a binary format ?
Is there a reliable way to spot a zipped file when opened ?
2.  Restrictions on geometry. 
The specification suggests that objects not of type "support" must comply with all the restrictions on geometry.
Should it fail to parse, or just warn users ? Must any AMF parser contain the functionality to validate the geometry ?
Polygonica provides all the functionality to validate the geometry and automatically repair any problems found.
Nigel Starling 
Senior Software Engineer
MachineWorks Ltd.

Nigel Starling
Senior Software Engineer

November 29 - December 2, 2011
Frankfurt, Germany
Hall 8 Stand: A123

MachineWorks Ltd
Rutledge House, 78 Clarkehouse Rd
Sheffield, S10 2LJ, United Kingdom
Registered in England, No 4561671

Tel: +44 114 2231370
Fax: +44 114 2231371

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