= Geometry templates – worked example =
ISO 15926 part 3 can be found here:
It is an Express model with no connections to ISO 15926 part 2.
The translation to ISO 15926 part 4 is done in this spreadsheet which content is loaded into the Core Library.
The chosen example to work is the SOLID SPHERE
== The ISO 15926 part 3 model ==
Link: [https://trac.posccaesar.org/export/611/projects/IDS-ADI/Part3/iso_ts_15926-3/document_files/cover.htm ISO 15926 part 3 in TRAC]
The worked example in Part 3 tems:
Figure 1 – ISO 15926 part 3 representation of a SOLID SPHERE worked example
Look in the spreadsheet and find the SOLID SHERE under tab OBJECTS:
SOLID SPHERE CLASS_OF_ABSTRACT_OBJECT
Look under tab RELATIONSHIP for its position in the taxonomy and its property relations:
||AXISYMMETRIC SOLID||SUBCLASS||SOLID SPHERE||
||OBJECT WITH RADIUS||SUBCLASS||SOLID SPHERE||
||OBJECT WITH REFERENCE POINT||SUBCLASS||SOLID SPHERE||
||SOLID ELLIPSOID||SUBCLASS||SOLID SPHERE||
||GEOMETRY RADIUS||OTHER_RELATIONSHIP||END_1||OBJECT WITH RADIUS||END_2||METRIC SPACE LENGTH||
||REFERENCE POINT||OTHER_RELATIONSHIP||END_1||OBJECT WITH REFERENCE POINT||END_2||METRIC SPACE POINT||
Modeled in Part 2 methods a functional physical object (a specific object in a 3D model that isn’t some plant item but part in an assembly representing it) classified as a solid sphere would be this:
Figure 2 – ISO 15926 part 2 representation of a SOLID SPHERE worked example.
Description:
The object (#Sph) is classified as (solid sphere).
This is a whole-life classification. The whole-life object (#Sph) has a whole-life start time but that hasn’t been worked-out.
Because the (solid sphere) class is subclass of (object with radius) and (object with reference point) it inherits those (other relationships), which are worked as example.
Object (#Sph) has a temporal part (#Sph-20080922T10:00) which has an information start time. The (other relationship) links it to the (radius) class. An instance of (property) is classified by (radius). The rest is a standard network of representing the property with a number and unit of measurement. This requires a (number space) for the (real number), which is set to (0, infinity).
Object (#Sph) has another temporal part (#Sph-20080922T10:01) which has an information start time. The metric space point is translated to a (multidimensional number) classified by a (multidimensional number space), which is the Part 2 method of making a point in a coordinate system. The multidimensional number has 3 elements, the X, Y and Z coordinate. The rest is a standard network of representing the property with a number and unit of measurement.
The worked example looks like this in shorthand template instances:
Figure 3 – ISO 15926 part 7 representation of a SOLID SPHERE worked example.