[osg-users] obj file coordinate is different from what osgearth display

OpenSceneGraph Users osg-users at lists.openscenegraph.org
Tue Apr 28 20:49:35 PDT 2020


Can you provide some ideas? I am a novice for osgearth. I use readNodeFile 
fnction to read obj  file and display (wgs84), then use writeNodeFile to 
write obj file then display in cesiumlab.

On Tuesday, April 28, 2020 at 7:02:27 PM UTC+8, Boitumelo Ruf wrote:
>
> Yes, but internally it will transform the wgs84 coordinates to ECEF in 
> order to place them inside the eucledian coordinate system of osg. Look at: 
> http://forum.osgearth.org/LIDAR-data-visualization-td7592224.html
>
> Am Dienstag, 28. April 2020 12:29:01 UTC+2 schrieb wu:
>>
>> my osgearth coordinate system use the wgs84 not ECEF
>>
>> On Tuesday, April 28, 2020 at 5:12:29 PM UTC+8, Boitumelo Ruf wrote:
>>>
>>> Have you checked the osgEarth forum: http://forum.osgearth.org/
>>>
>>> osgEarth uses an Earth-Centered-Earth-Fixed (ECEF) eucledian coordinate 
>>> system. Maybe you would need to transform the coordinates inside your .obj 
>>> file first.
>>>
>>> Am Dienstag, 28. April 2020 11:03:38 UTC+2 schrieb wu:
>>>>
>>>> obj file coordinate is different from what osgearth display!
>>>> i use osgearth  display my pipe (wgs84)
>>>> pipe display correct,but  obj Exported is Incorrect。I checked some 
>>>> information but found no reason!
>>>>
>>>>

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