[x3d-public] Base of X3DViewpointNode for GeoViewpoint

[Brutzman, Donald (Don) (CIV)]

Thanks for excellent comment Holger.  Apologies for delayed response on my
part.

 

I agree that consistent interface hierarchies are essential and required.

 

Next, please note updated url.  You provided a link to the earlier Committee
Draft (CD) version.

*	X3D4 Architecture, CD, 25.3.11 GeoViewpoint
*
https://www.web3d.org/documents/specifications/19775-1/V4.0/Part01/component
s/geospatial.html#GeoViewpoint

 

That document was updated as follows. This Draft International Specification
(DIS) passed ISO international balloting, Dick and I will be applying final
comments by Web3D Consortium and various national bodies to further improve
the document in coming weeks.

*	X3D4 Architecture, DIS, 25.3.11 GeoViewpoint
*
https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-DIS/Part01/
components/geospatial.html#GeoViewpoint
*	SFNode     [in,out] navigationInfo    NULL
[NavigationInfo]

 

So it looks like this early omission was noted and handled in a previous
review.  Nevertheless your diligence is appreciated since the window for
error corrections is about to close.

 

Here are some additional checks that I performed, ensuring that this
important connection is included in our documentation, validation and code
libraries.

 

*	X3D Tooltips, GeoViewpoint NavigationInfo
*
https://www.web3d.org/x3d/content/X3dTooltips.html#GeoViewpoint.navigationIn
fo

 

*	X3D Unified Object Model (X3DUOM), derived from X3D XML Schema,
includes it:

 

      <ConcreteNode name="GeoViewpoint">

         <InterfaceDefinition 

 
specificationUrl=https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC1977
5-1v4-DIS/Part01/components/geospatial.html#GeoViewpoint

                               appinfo="GeoViewpoint specifies viewpoints
using geographic coordinates.">

            <componentInfo name="Geospatial" level="1"/>

            <Inheritance baseType="X3DViewpointNode"/>\

            <field name="navigationInfo"

                    type="SFNode"

                    accessType="inputOutput"

                    default="NULL"

                    acceptableNodeTypes="NavigationInfo"

                    inheritedFrom="X3DViewpointNode"

                    description="The navigationInfo field defines a
dedicated NavigationInfo node for this X3DViewpointNode."/>

 

X3DJSAIL, X3D Java Scene Access Interface Library  includes it

*	Package org.web3d.x3d.sai.Navigation, Interface X3DViewpointNode
*
https://www.web3d.org/specifications/java/javadoc/org/web3d/x3d/sai/Navigati
on/X3DViewpointNode.html
*	All Known Implementing Classes: GeoViewpoint, OrthoViewpoint,
Viewpoint

 

x3d.py python includes it:

 

class GeoViewpoint(_X3DViewpointNode):

    """

    GeoViewpoint specifies viewpoints using geographic coordinates.

    """

 

    @property # getter - - - - - - - - - -

    def navigationInfo(self):

        """[NavigationInfo] The navigationInfo field defines a dedicated
NavigationInfo node for this X3DViewpointNode."""

        return self.__navigationInfo

    @navigationInfo.setter

    def navigationInfo(self, navigationInfo):

        if  navigationInfo is None:

            navigationInfo = None # default

        assertValidSFNode(navigationInfo)

        if not navigationInfo is None and not
isinstance(navigationInfo,(NavigationInfo,ProtoInstance)):

            # print(flush=True)

            raise X3DTypeError(str(navigationInfo) + ' does not match
required node type (NavigationInfo,ProtoInstance) and is invalid')

        self.__navigationInfo = NavigationInfo

 

So looks like we are set.  Thanks again.

 

all the best, Don

-- 

Don Brutzman  Naval Postgraduate School, Code USW/Br        brutzman at nps.edu

Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA    +1.831.656.2149

X3D graphics, virtual worlds, Navy robotics https://
faculty.nps.edu/brutzman

 

From: x3d-public <x3d-public-bounces at web3d.org> On Behalf Of Holger Seelig
Sent: Saturday, December 10, 2022 12:57 PM
To: X3D <x3d-public at web3d.org>
Subject: [x3d-public] Base of X3DViewpointNode

 

X3DViewpointNode is base of Viewpoint, OrthoViewpoint, and GeoViewpoint.
Base means the parent classes inherit ALL fields of the base node. 

 

This is not the case with GeoViewpoint, which misses new v4.0 field
navigationInfo, I don't see why this should be.

 

See:



 
<https://www.web3d.org/documents/specifications/19775-1/V4.0/Part01/componen
ts/geospatial.html#GeoViewpoint> Extensible 3D (X3D), ISO/IEC 19775-1:202x,
25 Geospatial Component

 
<https://www.web3d.org/documents/specifications/19775-1/V4.0/Part01/componen
ts/geospatial.html#GeoViewpoint> web3d.org

 
<https://www.web3d.org/documents/specifications/19775-1/V4.0/Part01/componen
ts/geospatial.html#GeoViewpoint> 

 

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