The SoVRMLGeoTouchSensor node tracks the location and state of a pointing device and detects when the user points at geometry contained by the parent group of the GeoTouchSensor. This node provides the same functionality as a TouchSensor but also provides the ability to return the geographic coordinate under the pointing device.

VRML X3D SPECIFICATION

This section describes the expected behavior of the node in a conforming X3D / VRML97 browser application. In some cases, the application is responsible for implementing portions of the expected behavior. Open Inventor viewer classes and IVF classes implement some of the application behaviors.

This section may reference portions of the X3D specification that are not present in this help file. The complete X3D spec is available at http://www.web3d.org.

The SoVRMLGeoTouchSensor node tracks the location and state of a pointing device and detects when the user points at geometry contained by the parent group of the GeoTouchSensor. This node provides the same functionality as a TouchSensor but also provides the ability to return the geographic coordinate under the pointing device. The description field in the GeoTouchSensor node specifies a textual description of the GeoTouchSensor node. This may be used by browser-specific user interfaces that wish to present users with more detailed information about the GeoTouchSensor. A SoVRMLGeoTouchSensor can be enabled or disabled by sending an event of value true or false to the enabled field. A disabled GeoTouchSensor does not track user input or send events. The geoOrigin field is used to specify a local coordinate frame for extended precision as described in 25.2.5 Dealing with high-precision coordinates. The geoSystem field is used to define the spatial reference frame and is described in 25.2.3 Specifying a spatial reference frame. The fields hitNormal_changed, hitPoint_changed, hitTexCoord_changed, isActive, isOver, and touchTime all have the same meaning as in the TouchSensor node. The hitGeoCoord_changed field is generated while the pointing device is pointing towards the SoVRMLGeoTouchSensor's geometry (i.e., when isOver is true). It is a field containing the geospatial coordinate for the point of intersection between the pointing device's location and the underlying geometry. The value of the geoSystem string defines the spatial reference frame of the geospatial coordinate. For example, given the default geoSystem value of "GD", the hitGeoCoord_changed field will be in the format

<latitude> <longitude> <elevation>

FILE FORMAT/DEFAULT

VRMLGeoTouchSensor {

enabled	true
description	""
metadata	NULL
geoOrigin	NULL
geoSystem	["GD","WE"]

}

EVENTS

eventIn

SoSFBool	set_enabled
SoSFBool	set_description
SoSFNode	set_metadata

eventOut

SoSFString	description_changed
SoSFBool	enabled_changed
SoSFVec3f	hitNormal_changed
SoSFVec3f	hitPoint_changed
SoSFVec2f	hitTexCoord_changed
SoSFVec2f	hitGeoCoord_changed
SoMFString	hitGeoCoordString_changed
SoSFBool	isActive
SoSFBool	isOver (Note: Not implemented)
SoSFTime	touchTime
SoSFNode	metadata_changed

Obsoletesince Open Inventor 9500 The VRML API is no longer supported. See section http://oivdoc95.vsg3d.com/content/compatibility-notes-4#Deprecation of the Reference Manual.

Reference