OGC ARML 2.0 Candidate Standard

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1 Hosted and Sponsored by Minister of Land, Transport and Maritime Affairs (MLTM) OGC ARML 2.0 Candidate Standard AR Standards Community Meeting, Barcelona Martin Lechner, Chair ARML 2.0 SWG March 1 st, 2013

2 OGC ARML 2.0 SWG Scope mobile visual AR descriptive format scripting components

3 OGC ARML 2.0 Facts 53 participants as of today Started at OGC meeting in Boulder in September 2011 Approved OGC Candidate Standard Public comments incorporated in current version (v1.0.2) Submitting organizations: Wikitude GmbH. Georgia Tech CACI International Inc. University of Alabama Huntsville - Information Technology & Systems Center

4 ARML Summary Eiffel Tower A Feature as an abstraction of a real world phenomenon... has Anchors... which have Assets in the Real World representing the Feature in the Virtual World

5 Anchors... Spatial (0D, 1D, 2D) Trackables (0D) RelativeTo (0D, 1D, 2D) On screen

6 Trackable and Tracker Tracking must be generic Marker Tracking Natural Feature Tracking 3D Tracking Face Tracking Sound Tracking Infrared Tracking etc. Tracker Trackable

7 Visual Assets 3D Model Image Fill <html>... </html> Label Eiffel Tower Text

8 Visual Assets cont d Automatic orientation (user or absolute) Manual orientation (roll, tilt, heading) Custom drawing order (zorder) Scaling (natural or custom) Conditions for visibility (distance, selected items)

9 Basic Document Outline <arml> <ARElements>... </ARElements> <script type= "text/javascript">.. dynamic parts, event handling etc. </script> <style type= "text/css">.. CSS styling of VisualAssets. </style> </arml>

10 Example 3D Model on Trackable <arml> <ARElements>  <Tracker id="defaultimagetracker"> <uri> </Tracker>  <Trackable> <assets>  <Model> <href> </Model> </assets> <tracker>#defaultimagetracker</tracker> <src> <size>0.20</size> </Trackable> </ARElements> </arml>

11 Example Color Outline of Trackable <arml> <ARElements>  <Fill id="myredfill"> <! Outline drawn 1 cm thick --> <height>0.01</height> <style>color:#ff0000;</style> </Fill> <Tracker id="defaultimagetracker"> <uri> genericimagetracker</uri> </Tracker> <Trackable id="mytrackable"> <tracker>#defaultimagetracker</tracker> <src> <size>0.20</size> </Trackable> <RelativeTo id="markeroutline"> <assets> <assetref>#myredfill</assetref> </assets> <ref>#mytrackable</ref> <LineString> <poslist> </poslist> </LineString> </RelativeTo> </ARElements> </arml>

12 Example Geo AR Browser <arml> <ARElements> <Image id="placemarkmarker"> <ScalingMode type="custom"> <minscalingdistance>50</minscalingdistance> <maxscalingdistance>100</maxscalingdistance> </ScalingMode> <width>20</width> <href> </Image> <Label id="infowindowlabel"> <conditions> <SelectedCondition> <listener>feature</listener> <selected>true</selected> </SelectedCondition> </conditions> <src><b>$[name]</b><br />$[description]</src> </Label> <Feature id="goldengatebridge"> <name>golden Gate Bridge</name> <description>the Golden Gate Bridge is...</description> <anchors> <anchorref>#infowindow</anchorref> <Geometry> <assets> <assetref>#placemarkmarker</assetref> </assets> <Point> <pos> </pos> </Point> </Geometry> </anchors> </Feature>  </ARElements> </arml> <ScreenAnchor id="infowindow"> <style>left: 0; width: 100%; bottom: 0; height: 25%</style> <assets> <assetref>#infowindowlabel</assetref> </assets> </ScreenAnchor>

13 Events and Animations ECMAScript Object arml void addeventlistener(string type, EventListener listener); void removeeventlistener(string type, EventListener listener); Events arml locationchanged VisualAsset enterfieldofvision exitfieldofvision Click ARAnchor enterfieldofvision exitfieldofvision Trackable tracked trackinglost Animation start finish Animation.start(int loopcount, int delay); Animation.stop(); Animation.isRunning(); var anim = new NumberAnimation( targetobject, animatedproperty, startvalue, endvalue, duration); anim.start(1, 0); var groupanim = new GroupAnimation( parallel, [anim1, anim2] ); access/modify any declared object and property start/stop animations declared in 3D model file

14 Thank you!

OGC ARML 2.0 Candidate Standard - Comparison with Existing Formats

Hosted and Sponsored by Minister of Land, Transport and Maritime Affairs (MLTM) OGC ARML 2.0 Candidate Standard - Comparison with Existing Formats AR Standards Community Meeting, Atlanta Martin Lechner,