Equipment
User Guide
Equipment
: Import-STL
Import-STL
STL format provides an approximation of a curved surface model, with accuracy and level of detail controlled through a tolerance setting. Import-STL maps this format onto AVEVA 3D primitives. Hence a 100% accurate translation of the source model into AVEVA E3D™ geometry cannot be guaranteed.
Import-STL is for translating stereolithography (STL) files, that have been generated from non-AVEVA Mechanical CAD systems, into macro files that can be input to AVEVA E3D™.
The input to Import-STL consists of STL files generated from/by non-AVEVA Mechanical CAD systems. Some non-AVEVA Mechanical CAD systems have an inbuilt facility for generating STL files, others do not, and the generation of STL files from these systems involves the use of a separate translator program, such as CADfix® from ITI TranscenData (http://www.transcendata.com).
The STL files normally have the extension .stl and can be either ASCII or binary in format. Import-STL reads both ASCII and binary STL files.
The Import-STL program works in read-only mode and the original STL files are not changed in any way.
The output from Import-STL consists of a macro file that is suitable for input to the MODEL module of AVEVA E3D™.
Solid Polyhedron
The definition of the Solid Polyhedron is a set of faces that have to make a complete solid, for example, all edges of the faces have to have corresponding edges from other faces. The Solid Polyhedron has the following characteristics:
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It is more economical to store in DESIGN databases than a corresponding POHE/POGO arrangement.
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It is faster to manipulate in the MODEL module.
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The clash detection is better than POHE/POGO because it can detect parts that are completely inside the polyhedron.
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It allows the use of invisible edges which is a facility that:
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Edges are not displayed in wireline mode in MODEL.
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In colour-shaded mode in MODEL the parts are displayed with smooth shading between faces that share invisible edges.
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Drawings produced using DRAW show the visible edges and any silhouette edges only.
By default Solid Polyhedron generation is switched on.
1974 to current year.
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