De viations in re commende d Ge tSce ne parame te rs

Copyright © 2012 Op en Geos pati al Consortium 55

9.3.1.1 De viations in re commende d Ge tSce ne parame te rs

The W3DS GetScene operation defines the following request parameters where the CityServer3D implementation deviates in interpretation or ignores the input Table 3 . Deliberately ignored items indicate conceptual issues seen by Fraunhofer IGD. Table 3: Implementa tion of the W3DS GetScene reques ts para meters in CityServ er3D. Names Definition Comment minHeig ht MinHei ght Vertical lower limit fo r boundingBo x selection criteria Igno red but ch ecked for errors maxHeight Max Heig ht Vertical upper limit fo r boundingBo x selection criteria Igno red but ch ecked for errors spatialS election SpatialSel ectio n Indicat es method o f selecting obj ects with BoundingBox Igno red form at Format Format en co ding o f the scen e Not 100 comp atible to [OGC 06 -121 r9] claus e 10.5 no suppo rt for p aram eterized mimes layers Lay ers List of l ayer to ret riev e the data from Interpreted as lay er n ames, not identi fiers. styles Styles List of s erv er styles to be applied to the lay ers Igno red lods LODs List of LODs req uest ed fo r the lay er Delib erately ign ored. In the view o f Fraunho fer IGD, the LoD problem is not ad equ atel y add ress ed by these two param eters. In parti cul ar, the binding to the layers param eter is question able. lodSelection LODS election Indicat es method for selecting LODs time Time Dat e and time Igno red o ffs et Offset Offset vecto r which shall be applied to the scene, i.e. subtract ed from the scen e Will be subtracted o r used as X3D 3.2 GeoOrigin dep en ding on fo rmat and custo m param eters 1 . background Back grou nd Identi fier o f the b ackgro und to be used Delib erately ign ored. Und erspeci fi ed light Light Add light source Delib erately ign ored Undersp eci fied viewp oints Viewpoints Add Vi ewpoi nts to choos e from ignored 1 The X3D 3.2 Geo extension cannot be used without an offset GeoOrigin in X3D 3.2, so there is an ambiguity resolved by this parameter. X3D 3.3 can only use the Geo extension without offset, so again there is an ambiguity. This is not an issue when not targeting X3D browsers with and without geo extension available. However, we view a simple decision by the requested X3D profile as insufficient for this use case because only the “Full” most advanced profile encompasses the geo extension.

9.3.1.2 Additional Ge tSce ne parame te rs in the C itySe rve r3D