CAD Working Group Strategy - Revision history

Adpc92: /* Next steps for activity */

2015-01-29T07:00:27Z

‎Next steps for activity

Adpc92: /* Next steps for activity */

2015-01-29T06:59:45Z

‎Next steps for activity

Adpc92: /* Next steps for activity */

2015-01-29T06:58:25Z

‎Next steps for activity

Adpc92: /* CAD Working Group Strategy (27 January 2015) */

2015-01-29T06:49:40Z

‎CAD Working Group Strategy (27 January 2015)

Adpc92: /* CAD Working Group Strategy (27 January 2015) */

2015-01-27T06:51:59Z

‎CAD Working Group Strategy (27 January 2015)

Adpc92 at 04:46, 27 January 2015

2015-01-27T04:46:51Z

Flux: correct grammar: practises are, practice is

2012-04-22T18:09:09Z

correct grammar: practises are, practice is

Flux: you forgot to refactor last section

2011-12-18T17:47:40Z

you forgot to refactor last section

Adpc9 at 04:51, 15 December 2011

2011-12-15T04:51:06Z

Adpc9: New page: a. Build examples of X3D CAD models to provide use cases and use case and best practices. Preserve product structure in CAD node name fields and metadata. b. Resist the urge to refacto...

2011-12-15T03:06:33Z

New page: a. Build examples of X3D CAD models to provide use cases and use case and best practices. Preserve product structure in CAD node name fields and metadata. b. Resist the urge to refacto...

New page

a. Build examples of X3D CAD models to provide use cases and
use case and best practices.

Preserve product structure in CAD node name fields and metadata.

b. Resist the urge to refactor CAD product nodes, unless a clear
improvement in CAD consistency is shown. Preferred is good practices
rather than restrictions that are difficult to enforce.

c. Goals
- Primary goal. CAD definitions converted to X3D geometry, preferring
parametric representations for brevity and precision.
- Secondary goal. Option to save CAD product structure in the use of
named X3D CAD product structure nodes, with addition of embedded
typed metadata nodes.
- Third goal. Define, implement, demonstrate and distribute the workflow
for converting CAD models to X3D.

d. Next steps for activity.
- Compare vocabularies for ISO STEP, Macro Parametric Approach, B-REPS
(general definitions) and B-REPS (proposed X3D nodes).
- For each table row, define corresponding mappings to existing parametric
X3D nodes (e.g. NURBS, extrusion, primitives).
- Consider implementing these BREPS nodes as NURBS-based X3D prototypes
- These prototypes are an independent implementation that make it easy
for either authors or browser to use such BREPS nodes
- Can also update the support for these nodes in Xj3D open source
- List all pros/cons of BREPS nodes as first-class X3D v3.4 nodes
- At this point it is much easier to decide whether to add BREPS to X3D

e. Constructive Solid Geometry (CSG) is best considered part of model
definition, something that helps to produce BREPS and surfaces, and not
something that needs to be supported in browsers and content. CSG is
computationally heavyweight, and does not belong in a lightweight
portrayal format like X3D. If browsers are heavy, no one uses them.
"Lighter, stronger, simpler" is what Hyo hears from his customers.

@@ Line 47: / Line 47: @@
 * CAD-to-X3D conversion proposal for ISO/IEC JTC 1/SC 24 Technical Report draft distribution (~2015. Jan)
-* Complement for PMI and 3D printing (~2015. Jan~Feb)
+* Complement for PMI and 3D printing (~2015. Feb)
 ** Initial assessment of PMI metadata capture
 ** Initial assessment of 3D Printing model format for Additive Manufacturing (AM)
 * Discussion on draft and revision (2015. Feb~Mar)

@@ Line 46: / Line 46: @@
 == Next steps for activity ==
-* TR draft distribution (~2015. Jan)
+* CAD-to-X3D conversion proposal for ISO/IEC JTC 1/SC 24 Technical Report draft distribution (~2015. Jan)
 * Complement for PMI and 3D printing (~2015. Jan~Feb)
 ** Initial assessment of PMI metadata capture
 ** Initial assessment of 3D Printing model format for Additive Manufacturing (AM)
 * Discussion on draft and revision (2015. Feb~Mar)

@@ Line 46: / Line 46: @@
 == Next steps for activity ==
-* Compare vocabularies for ISO STEP and define corresponding mappings to existing parametric X3D nodes (e.g. NURBS, extrusion, primitives).
+* TR draft distribution (~2015. Jan)
-* Consider implementing BREPS nodes as NURBS-based X3D prototypes
+* Complement for PMI and 3D printing (~2015. Jan~Feb)
-** These prototypes are an independent implementation that make it easy for either authors or browser to use such BREPS nodes
+** Initial assessment of PMI metadata capture
-** Can also update the support for these nodes in Xj3D open source
+** Initial assessment of 3D Printing model format for Additive Manufacturing (AM)
-** List all pros/cons of BREPS nodes as first-class X3D v3.4 nodes
+* Discussion on draft and revision (2015. Feb~Mar)
-** At this point it is much easier to decide whether to add BREPS to X3D

@@ Line 26: / Line 26: @@
 * Exporting CAD models into X3D
-** Preserve product structure in CAD node name fields and metadata.
+** ISO STEP-based approach for CAD-to-X3D conversion
-** Resist the urge to refactor CAD product nodes, unless a clear improvement in CAD consistency is shown. Preferred are good practices rather than restrictions that are difficult to enforce.
+** Goals of conversion
-** Goals
+*** 1. Save Product Structure(PS) in the use of named X3D CAD product structure nodes, with addition of embedded typed metadata nodes.
-*** Primary goal. CAD definitions converted to X3D geometry, preferring parametric representations for brevity and precision.
+*** 2. STEP vocabulary converted to X3D geometry, preferring parametric representations for brevity and precision.
-*** Secondary goal. Option to save CAD product structure in the use of named X3D CAD product structure nodes, with addition of embedded typed metadata nodes.
+*** 3. STEP Product Manufacturing Information(PMI) exported and captured with X3D metadata
-*** Third goal. Define, implement, demonstrate and distribute the workflow for converting CAD models to X3D.
+** Incorporation of BIM(Building Information Modeling) models
-** PMI (Product Manufacturing Information)
 ** BIM (Building Information Modeling)
 * Exporting CAE data into X3D.
 * Exporting workflow/process data into X3D.
-** H-Anim
+** Workflow/process data for manufacturing or operation exported and converted to X3D animation nodes
-* 3D Additive Manufacturing
+* Application for 3D printing
 == Next steps for activity ==

@@ Line 32: / Line 32: @@
 *** Secondary goal. Option to save CAD product structure in the use of named X3D CAD product structure nodes, with addition of embedded typed metadata nodes.
 *** Third goal. Define, implement, demonstrate and distribute the workflow for converting CAD models to X3D.
-** BIM
+** PMI (Product Manufacturing Information)
 * Exporting CAE data into X3D.

← Older revision		Revision as of 04:46, 27 January 2015
Line 20:		Line 20:
	** If browsers are heavy, no one uses them.		** If browsers are heavy, no one uses them.
	** "Lighter, stronger, simpler" is what Hyo hears from his customers.		** "Lighter, stronger, simpler" is what Hyo hears from his customers.
		+
		+	== CAD Working Group Strategy (27 January 2015) ==
		+
		+	''Develops and demonstrates best practices for exporting CAx data into X3D to support Web applications.''
		+
		+	* Exporting CAD models into X3D
		+	** Preserve product structure in CAD node name fields and metadata.
		+	** Resist the urge to refactor CAD product nodes, unless a clear improvement in CAD consistency is shown. Preferred are good practices rather than restrictions that are difficult to enforce.
		+	** Goals
		+	*** Primary goal. CAD definitions converted to X3D geometry, preferring parametric representations for brevity and precision.
		+	*** Secondary goal. Option to save CAD product structure in the use of named X3D CAD product structure nodes, with addition of embedded typed metadata nodes.
		+	*** Third goal. Define, implement, demonstrate and distribute the workflow for converting CAD models to X3D.
		+	** BIM
		+
		+	* Exporting CAE data into X3D.
		+
		+	* Exporting workflow/process data into X3D.
		+	** H-Anim
		+
		+	* 3D Additive Manufacturing
		+
		+	== Next steps for activity ==
		+
		+	* Compare vocabularies for ISO STEP and define corresponding mappings to existing parametric X3D nodes (e.g. NURBS, extrusion, primitives).
		+	* Consider implementing BREPS nodes as NURBS-based X3D prototypes
		+	** These prototypes are an independent implementation that make it easy for either authors or browser to use such BREPS nodes
		+	** Can also update the support for these nodes in Xj3D open source
		+	** List all pros/cons of BREPS nodes as first-class X3D v3.4 nodes
		+	** At this point it is much easier to decide whether to add BREPS to X3D