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xsd:complexContent xsd:complexType
xsd:element name=Condition type=ConditionType abstract=true substitutionGroup=ARElement
7.5.4.1 class DistanceCondition XSD:
xsd:complexType name=DistanceConditionType xsd:complexContent
xsd:extension base=ConditionType xsd:sequence
xsd:element name=max type=xsd:double maxOccurs=1 minOccurs=0
xsd:element name=min type=xsd:double maxOccurs=1 minOccurs=0
xsd:sequence xsd:extension
xsd:complexContent xsd:complexType
xsd:element name=DistanceCondition type=DistanceConditionType substitutionGroup=Condition
Example:
Model id=myModel ... -- representation of the mountain hut as a 3D model
conditions DistanceCondition
min200min -- only visible when distance is more than 200 meters --
DistanceCondition conditions
Model Label id=myLabel
... -- representation of the mountain hut as a Label conditions
DistanceCondition max500max
min200min -- only visible when distance more than 200 meters, but less than 500 meters --
DistanceCondition conditions
Label
7.5.4.2 class SelectedCondition XSD:
xsd:complexType name=SelectedConditionType xsd:complexContent
xsd:extension base=ConditionType
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xsd:sequence xsd:element name=listener maxOccurs=1 minOccurs=0
xsd:simpleType xsd:restriction base=xsd:string
xsd:enumeration value=feature xsd:enumeration value=anchor
xsd:restriction xsd:simpleType
xsd:element xsd:element name=selected type=xsd:boolean maxOccurs=1
minOccurs=1 xsd:sequence
xsd:extension xsd:complexContent
xsd:complexType xsd:element name=SelectedCondition type=SelectedConditionType
substitutionGroup=Condition
Example:
Model id=myModel conditions
SelectedCondition listenerfeaturelistener
selectedtrueselected -- only visible when the Feature the VisualAsset is attached to is selected --
SelectedCondition conditions
href xlink:href=http:myserver.commyModel.dae Model
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8 ECMAScript Bindings normative
Requirements Class
http:www.opengis.netspecarml2.0reqscripting
Target Type Software Implementation
The following section describes the scripting part of ARML 2.0. Throughout this section, an WebIDL translation of the object model is introduced to define ECMAScript bindings and a JSON serialization
of the ARML 2.0 object model.
ARML provides ECMAScript the standardized version of JavaScript bindings to allow the dynamic access and modification of objects in the AR scene, as well as event handlers to react on user input.
In addition to the XML serialization, each class defined in ARML also has a JSON serialization, which is used to access and modify the properties of the objects in the scene.
Implementations are encouraged to support ARMLs ECMAScript bindings to allow the developer dynamic access to the scene. However, if ECMAScript bindings cannot be provided for whatever
reason, the implementation must clearly state that only the descriptive ARML specification is supported.
8.1 Accessing ARElements and Modifying the Scene
Implementations must ensure that an arml object is injected into the ECMAScript runtime context on startup. This object is the root node for any scripting operations on the AR scene and serves as the
namespace for the objects defined in ARML 2.0.
Requirement
http:www.opengis.netspecarml2.0reqscriptinggeneralarml_injection On startup, the arml object shall be injected into the ECMAScript runtime.
In addition to serving as the namespace, arml has the following properties and methods:
module arml { readonly attribute ARElement[] arElements;
ARElement getARElementByIdString id; void addToSceneARElement element;
void removeFromSceneARElement element; void addEventListenerString type, EventListener listener;
void removeEventListenerString type, EventListener listener; ... all interface objects from below
}
getARElementByIdString id returns the object having its id property set to the passed String. In case no such object exists, or id is
empty, the call returns null.
addToSceneARElement element adds the given element to the AR scene
