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<a href="index.html" class="qtref"><span>QtMobility Reference Documentation</span></a>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#public-types">Public Types</a></li>
<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#related-non-members">Related Non-Members</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QGeoPositionInfo Class Reference</h1>
<!-- $$$QGeoPositionInfo-brief -->
<p>The QGeoPositionInfo class contains information gathered on a global position, direction and velocity at a particular point in time. <a href="#details">More...</a></p>
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<pre class="cpp"> <span class="preprocessor">#include <QGeoPositionInfo></span></pre><p>This class was introduced in Qt Mobility 1.0.</p>
<ul>
<li><a href="qgeopositioninfo-members.html">List of all members, including inherited members</a></li>
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<a name="public-types"></a>
<h2>Public Types</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#Attribute-enum">Attribute</a></b> { Direction, GroundSpeed, VerticalSpeed, MagneticVariation, HorizontalAccuracy, VerticalAccuracy }</td></tr>
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<a name="public-functions"></a>
<h2>Public Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#QGeoPositionInfo">QGeoPositionInfo</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#QGeoPositionInfo-2">QGeoPositionInfo</a></b> ( const QGeoCoordinate & <i>coordinate</i>, const QDateTime & <i>timestamp</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#QGeoPositionInfo-3">QGeoPositionInfo</a></b> ( const QGeoPositionInfo & <i>other</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#dtor.QGeoPositionInfo">~QGeoPositionInfo</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#attribute">attribute</a></b> ( Attribute <i>attribute</i> ) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QGeoCoordinate </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#coordinate">coordinate</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#hasAttribute">hasAttribute</a></b> ( Attribute <i>attribute</i> ) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#isValid">isValid</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#removeAttribute">removeAttribute</a></b> ( Attribute <i>attribute</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#setAttribute">setAttribute</a></b> ( Attribute <i>attribute</i>, qreal <i>value</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#setCoordinate">setCoordinate</a></b> ( const QGeoCoordinate & <i>coordinate</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#setTimestamp">setTimestamp</a></b> ( const QDateTime & <i>timestamp</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QDateTime </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#timestamp">timestamp</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#operator-not-eq">operator!=</a></b> ( const QGeoPositionInfo & <i>other</i> ) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QGeoPositionInfo & </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#operator-eq">operator=</a></b> ( const QGeoPositionInfo & <i>other</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#operator-eq-eq">operator==</a></b> ( const QGeoPositionInfo & <i>other</i> ) const</td></tr>
</table>
<a name="related-non-members"></a>
<h2>Related Non-Members</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> QDataStream & </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#operator-lt-lt-99">operator<<</a></b> ( QDataStream & <i>stream</i>, const QGeoPositionInfo & <i>info</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QDataStream & </td><td class="memItemRight bottomAlign"><b><a href="qgeopositioninfo.html#operator-gt-gt-84">operator>></a></b> ( QDataStream & <i>stream</i>, QGeoPositionInfo & <i>info</i> )</td></tr>
</table>
<a name="details"></a>
<!-- $$$QGeoPositionInfo-description -->
<div class="descr">
<h2>Detailed Description</h2>
<p>The QGeoPositionInfo class contains information gathered on a global position, direction and velocity at a particular point in time.</p>
<p>A QGeoPositionInfo contains, at a minimum, a geographical coordinate and a timestamp. It may also have heading and speed measurements as well as estimates of the accuracy of the provided data.</p>
</div>
<p><b>See also </b><a href="qgeopositioninfosource.html">QGeoPositionInfoSource</a>.</p>
<!-- @@@QGeoPositionInfo -->
<div class="types">
<h2>Member Type Documentation</h2>
<!-- $$$Attribute$$$Direction$$$GroundSpeed$$$VerticalSpeed$$$MagneticVariation$$$HorizontalAccuracy$$$VerticalAccuracy -->
<h3 class="fn"><a name="Attribute-enum"></a>enum QGeoPositionInfo::<span class="name">Attribute</span></h3>
<p>Defines the attributes for positional information.</p>
<table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tblval">Value</th><th class="tbldscr">Description</th></tr>
<tr><td class="topAlign"><tt>QGeoPositionInfo::Direction</tt></td><td class="topAlign"><tt>0</tt></td><td class="topAlign">The bearing to true north from the direction of travel, in degrees.</td></tr>
<tr><td class="topAlign"><tt>QGeoPositionInfo::GroundSpeed</tt></td><td class="topAlign"><tt>1</tt></td><td class="topAlign">The ground speed, in metres/sec.</td></tr>
<tr><td class="topAlign"><tt>QGeoPositionInfo::VerticalSpeed</tt></td><td class="topAlign"><tt>2</tt></td><td class="topAlign">The vertical speed, in metres/sec.</td></tr>
<tr><td class="topAlign"><tt>QGeoPositionInfo::MagneticVariation</tt></td><td class="topAlign"><tt>3</tt></td><td class="topAlign">The angle between the horizontal component of the magnetic field and true north, in degrees. Also known as magnetic declination. A positive value indicates a clockwise direction from true north and a negative value indicates a counter-clockwise direction.</td></tr>
<tr><td class="topAlign"><tt>QGeoPositionInfo::HorizontalAccuracy</tt></td><td class="topAlign"><tt>4</tt></td><td class="topAlign">The accuracy of the provided latitude-longitude value, in metres.</td></tr>
<tr><td class="topAlign"><tt>QGeoPositionInfo::VerticalAccuracy</tt></td><td class="topAlign"><tt>5</tt></td><td class="topAlign">The accuracy of the provided altitude value, in metres.</td></tr>
</table>
<!-- @@@Attribute -->
</div>
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QGeoPositionInfo[overload1]$$$QGeoPositionInfo -->
<h3 class="fn"><a name="QGeoPositionInfo"></a>QGeoPositionInfo::<span class="name">QGeoPositionInfo</span> ()</h3>
<p>Creates an invalid <a href="qgeopositioninfo.html">QGeoPositionInfo</a> object.</p>
<p><b>See also </b><a href="qgeopositioninfo.html#isValid">isValid</a>().</p>
<!-- @@@QGeoPositionInfo -->
<!-- $$$QGeoPositionInfo$$$QGeoPositionInfoconstQGeoCoordinate&constQDateTime& -->
<h3 class="fn"><a name="QGeoPositionInfo-2"></a>QGeoPositionInfo::<span class="name">QGeoPositionInfo</span> ( const <span class="type"><a href="qgeocoordinate.html">QGeoCoordinate</a></span> & <i>coordinate</i>, const <span class="type"><a href="http://qt.nokia.com/doc/4.7/qdatetime.html">QDateTime</a></span> & <i>timestamp</i> )</h3>
<p>Creates a <a href="qgeopositioninfo.html">QGeoPositionInfo</a> for the given <i>coordinate</i> and <i>timestamp</i>.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@QGeoPositionInfo -->
<!-- $$$QGeoPositionInfo$$$QGeoPositionInfoconstQGeoPositionInfo& -->
<h3 class="fn"><a name="QGeoPositionInfo-3"></a>QGeoPositionInfo::<span class="name">QGeoPositionInfo</span> ( const <span class="type">QGeoPositionInfo</span> & <i>other</i> )</h3>
<p>Creates a <a href="qgeopositioninfo.html">QGeoPositionInfo</a> with the values of <i>other</i>.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@QGeoPositionInfo -->
<!-- $$$~QGeoPositionInfo[overload1]$$$~QGeoPositionInfo -->
<h3 class="fn"><a name="dtor.QGeoPositionInfo"></a>QGeoPositionInfo::<span class="name">~QGeoPositionInfo</span> ()</h3>
<p>Destroys a <a href="qgeopositioninfo.html">QGeoPositionInfo</a> object.</p>
<!-- @@@~QGeoPositionInfo -->
<!-- $$$attribute[overload1]$$$attributeAttribute -->
<h3 class="fn"><a name="attribute"></a><span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#qreal-typedef">qreal</a></span> QGeoPositionInfo::<span class="name">attribute</span> ( <span class="type"><a href="qgeopositioninfo.html#Attribute-enum">Attribute</a></span> <i>attribute</i> ) const</h3>
<p>Returns the value of the specified <i>attribute</i> as a qreal value.</p>
<p>Returns -1 if the value has not been set, although this may also be a legitimate value for some attributes.</p>
<p>The function <a href="qgeopositioninfo.html#hasAttribute">hasAttribute</a>() should be used to determine whether or not a value has been set for an attribute.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<p><b>See also </b><a href="qgeopositioninfo.html#hasAttribute">hasAttribute</a>() and <a href="qgeopositioninfo.html#setAttribute">setAttribute</a>().</p>
<!-- @@@attribute -->
<!-- $$$coordinate[overload1]$$$coordinate -->
<h3 class="fn"><a name="coordinate"></a><span class="type"><a href="qgeocoordinate.html">QGeoCoordinate</a></span> QGeoPositionInfo::<span class="name">coordinate</span> () const</h3>
<p>Returns the coordinate for this position.</p>
<p>Returns an invalid coordinate if no coordinate has been set.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<p><b>See also </b><a href="qgeopositioninfo.html#setCoordinate">setCoordinate</a>().</p>
<!-- @@@coordinate -->
<!-- $$$hasAttribute[overload1]$$$hasAttributeAttribute -->
<h3 class="fn"><a name="hasAttribute"></a><span class="type">bool</span> QGeoPositionInfo::<span class="name">hasAttribute</span> ( <span class="type"><a href="qgeopositioninfo.html#Attribute-enum">Attribute</a></span> <i>attribute</i> ) const</h3>
<p>Returns true if the specified <i>attribute</i> is present for this <a href="qgeopositioninfo.html">QGeoPositionInfo</a> object.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@hasAttribute -->
<!-- $$$isValid[overload1]$$$isValid -->
<h3 class="fn"><a name="isValid"></a><span class="type">bool</span> QGeoPositionInfo::<span class="name">isValid</span> () const</h3>
<p>Returns true if the <a href="qgeopositioninfo.html#timestamp">timestamp</a>() and <a href="qgeopositioninfo.html#coordinate">coordinate</a>() values are both valid.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<p><b>See also </b><a href="qgeocoordinate.html#isValid">QGeoCoordinate::isValid</a>() and <a href="http://qt.nokia.com/doc/4.7/qdatetime.html#isValid">QDateTime::isValid</a>().</p>
<!-- @@@isValid -->
<!-- $$$removeAttribute[overload1]$$$removeAttributeAttribute -->
<h3 class="fn"><a name="removeAttribute"></a><span class="type">void</span> QGeoPositionInfo::<span class="name">removeAttribute</span> ( <span class="type"><a href="qgeopositioninfo.html#Attribute-enum">Attribute</a></span> <i>attribute</i> )</h3>
<p>Removes the specified <i>attribute</i> and its value.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@removeAttribute -->
<!-- $$$setAttribute[overload1]$$$setAttributeAttributeqreal -->
<h3 class="fn"><a name="setAttribute"></a><span class="type">void</span> QGeoPositionInfo::<span class="name">setAttribute</span> ( <span class="type"><a href="qgeopositioninfo.html#Attribute-enum">Attribute</a></span> <i>attribute</i>, <span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#qreal-typedef">qreal</a></span> <i>value</i> )</h3>
<p>Sets the value for <i>attribute</i> to <i>value</i>.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<p><b>See also </b><a href="qgeopositioninfo.html#attribute">attribute</a>().</p>
<!-- @@@setAttribute -->
<!-- $$$setCoordinate[overload1]$$$setCoordinateconstQGeoCoordinate& -->
<h3 class="fn"><a name="setCoordinate"></a><span class="type">void</span> QGeoPositionInfo::<span class="name">setCoordinate</span> ( const <span class="type"><a href="qgeocoordinate.html">QGeoCoordinate</a></span> & <i>coordinate</i> )</h3>
<p>Sets the coordinate for this position to <i>coordinate</i>.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<p><b>See also </b><a href="qgeopositioninfo.html#coordinate">coordinate</a>().</p>
<!-- @@@setCoordinate -->
<!-- $$$setTimestamp[overload1]$$$setTimestampconstQDateTime& -->
<h3 class="fn"><a name="setTimestamp"></a><span class="type">void</span> QGeoPositionInfo::<span class="name">setTimestamp</span> ( const <span class="type"><a href="http://qt.nokia.com/doc/4.7/qdatetime.html">QDateTime</a></span> & <i>timestamp</i> )</h3>
<p>Sets the date and time at which this position was reported to <i>timestamp</i>.</p>
<p>The <i>timestamp</i> must be in UTC time.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<p><b>See also </b><a href="qgeopositioninfo.html#timestamp">timestamp</a>().</p>
<!-- @@@setTimestamp -->
<!-- $$$timestamp[overload1]$$$timestamp -->
<h3 class="fn"><a name="timestamp"></a><span class="type"><a href="http://qt.nokia.com/doc/4.7/qdatetime.html">QDateTime</a></span> QGeoPositionInfo::<span class="name">timestamp</span> () const</h3>
<p>Returns the date and time at which this position was reported, in UTC time.</p>
<p>Returns an invalid <a href="http://qt.nokia.com/doc/4.7/qdatetime.html">QDateTime</a> if no date/time value has been set.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<p><b>See also </b><a href="qgeopositioninfo.html#setTimestamp">setTimestamp</a>().</p>
<!-- @@@timestamp -->
<!-- $$$operator!=[overload1]$$$operator!=constQGeoPositionInfo& -->
<h3 class="fn"><a name="operator-not-eq"></a><span class="type">bool</span> QGeoPositionInfo::<span class="name">operator!=</span> ( const <span class="type">QGeoPositionInfo</span> & <i>other</i> ) const</h3>
<p>Returns true if any of this object's values are not the same as those of <i>other</i>.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@operator!= -->
<!-- $$$operator=[overload1]$$$operator=constQGeoPositionInfo& -->
<h3 class="fn"><a name="operator-eq"></a><span class="type">QGeoPositionInfo</span> & QGeoPositionInfo::<span class="name">operator=</span> ( const <span class="type">QGeoPositionInfo</span> & <i>other</i> )</h3>
<p>Assigns the values from <i>other</i> to this <a href="qgeopositioninfo.html">QGeoPositionInfo</a>.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@operator= -->
<!-- $$$operator==[overload1]$$$operator==constQGeoPositionInfo& -->
<h3 class="fn"><a name="operator-eq-eq"></a><span class="type">bool</span> QGeoPositionInfo::<span class="name">operator==</span> ( const <span class="type">QGeoPositionInfo</span> & <i>other</i> ) const</h3>
<p>Returns true if all of this object's values are the same as those of <i>other</i>.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<!-- @@@operator== -->
</div>
<div class="relnonmem">
<h2>Related Non-Members</h2>
<!-- $$$operator<<$$$operator<<QDataStream&constQGeoPositionInfo& -->
<h3 class="fn"><a name="operator-lt-lt-99"></a><span class="type"><a href="http://qt.nokia.com/doc/4.7/qdatastream.html">QDataStream</a></span> & <span class="name">operator<<</span> ( <span class="type"><a href="http://qt.nokia.com/doc/4.7/qdatastream.html">QDataStream</a></span> & <i>stream</i>, const <span class="type">QGeoPositionInfo</span> & <i>info</i> )</h3>
<p>Writes the given <i>info</i> to the specified <i>stream</i>.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<p><b>See also </b><a href="http://qt.nokia.com/doc/4.7/datastreamformat.html">Serializing Qt Data Types</a>.</p>
<!-- @@@operator<< -->
<!-- $$$operator>>$$$operator>>QDataStream&QGeoPositionInfo& -->
<h3 class="fn"><a name="operator-gt-gt-84"></a><span class="type"><a href="http://qt.nokia.com/doc/4.7/qdatastream.html">QDataStream</a></span> & <span class="name">operator>></span> ( <span class="type"><a href="http://qt.nokia.com/doc/4.7/qdatastream.html">QDataStream</a></span> & <i>stream</i>, <span class="type">QGeoPositionInfo</span> & <i>info</i> )</h3>
<p>Reads a coordinate from the specified <i>stream</i> into the given <i>info</i>.</p>
<p>This function was introduced in Qt Mobility 1.0.</p>
<p><b>See also </b><a href="http://qt.nokia.com/doc/4.7/datastreamformat.html">Serializing Qt Data Types</a>.</p>
<!-- @@@operator>> -->
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