ogr__feature_8h-source.html

gdal库的学习文档

<a name="l00112"></a><a class="code" href="classOGRFeatureDefn.html">00112</a> <span class="keyword">class </span>CPL_DLL OGRFeatureDefn
<a name="l00113"></a>00113 {
<a name="l00114"></a>00114   <span class="keyword">private</span>:
<a name="l00115"></a>00115     <span class="keywordtype">int</span>         nRefCount;
<a name="l00116"></a>00116     
<a name="l00117"></a>00117     <span class="keywordtype">int</span>         nFieldCount;
<a name="l00118"></a>00118     <a class="code" href="classOGRFieldDefn.html">OGRFieldDefn</a> **papoFieldDefn;
<a name="l00119"></a>00119 
<a name="l00120"></a>00120     OGRwkbGeometryType eGeomType;
<a name="l00121"></a>00121 
<a name="l00122"></a>00122     <span class="keywordtype">char</span>        *pszFeatureClassName;
<a name="l00123"></a>00123     
<a name="l00124"></a>00124   <span class="keyword">public</span>:
<a name="l00125"></a>00125                 OGRFeatureDefn( <span class="keyword">const</span> <span class="keywordtype">char</span> * pszName = NULL );
<a name="l00126"></a>00126     <span class="keyword">virtual</span>    ~OGRFeatureDefn();
<a name="l00127"></a>00127 
<a name="l00128"></a><a class="code" href="classOGRFeatureDefn.html#1efe6db724bb1c5fde13e5f3896e4a01">00128</a>     <span class="keyword">const</span> <span class="keywordtype">char</span>  *GetName() { <span class="keywordflow">return</span> pszFeatureClassName; }
<a name="l00129"></a>00129 
<a name="l00130"></a><a class="code" href="classOGRFeatureDefn.html#b400f9106e7544ebafa30b1fe59869b1">00130</a>     <span class="keywordtype">int</span>         GetFieldCount() { <span class="keywordflow">return</span> nFieldCount; }
<a name="l00131"></a>00131     <a class="code" href="classOGRFieldDefn.html">OGRFieldDefn</a> *GetFieldDefn( <span class="keywordtype">int</span> i );
<a name="l00132"></a>00132     <span class="keywordtype">int</span>         GetFieldIndex( <span class="keyword">const</span> <span class="keywordtype">char</span> * );
<a name="l00133"></a>00133 
<a name="l00134"></a>00134     <span class="keywordtype">void</span>        AddFieldDefn( <a class="code" href="classOGRFieldDefn.html">OGRFieldDefn</a> * );
<a name="l00135"></a>00135 
<a name="l00136"></a><a class="code" href="classOGRFeatureDefn.html#81a7dc7ed24fe9f2634bf447d1799e84">00136</a>     OGRwkbGeometryType GetGeomType() { <span class="keywordflow">return</span> eGeomType; }
<a name="l00137"></a>00137     <span class="keywordtype">void</span>        SetGeomType( OGRwkbGeometryType );
<a name="l00138"></a>00138 
<a name="l00139"></a>00139     OGRFeatureDefn *Clone();
<a name="l00140"></a>00140 
<a name="l00141"></a><a class="code" href="classOGRFeatureDefn.html#2c58c6238242dff3d472faf5e3803922">00141</a>     <span class="keywordtype">int</span>         Reference() { <span class="keywordflow">return</span> ++nRefCount; }
<a name="l00142"></a><a class="code" href="classOGRFeatureDefn.html#87a280dd42634206dfbcfc47b1ecfea4">00142</a>     <span class="keywordtype">int</span>         Dereference() { <span class="keywordflow">return</span> --nRefCount; }
<a name="l00143"></a><a class="code" href="classOGRFeatureDefn.html#f28dd34d8e3ceee1cb1ba6798711b4e1">00143</a>     <span class="keywordtype">int</span>         GetReferenceCount() { <span class="keywordflow">return</span> nRefCount; }
<a name="l00144"></a>00144     <span class="keywordtype">void</span>        Release();
<a name="l00145"></a>00145 
<a name="l00146"></a>00146     <span class="keyword">static</span> OGRFeatureDefn  *CreateFeatureDefn( <span class="keyword">const</span> <span class="keywordtype">char</span> *pszName = NULL );
<a name="l00147"></a>00147     <span class="keyword">static</span> <span class="keywordtype">void</span>         DestroyFeatureDefn( OGRFeatureDefn * );
<a name="l00148"></a>00148 };
<a name="l00149"></a>00149 
<a name="l00150"></a>00150 <span class="comment">/************************************************************************/</span>
<a name="l00151"></a>00151 <span class="comment">/*                              OGRFeature                              */</span>
<a name="l00152"></a>00152 <span class="comment">/************************************************************************/</span>
<a name="l00153"></a>00153 
<a name="l00158"></a><a class="code" href="classOGRFeature.html">00158</a> <span class="keyword">class </span>CPL_DLL OGRFeature
<a name="l00159"></a>00159 {
<a name="l00160"></a>00160   <span class="keyword">private</span>:
<a name="l00161"></a>00161 
<a name="l00162"></a>00162     <span class="keywordtype">long</span>                nFID;
<a name="l00163"></a>00163     OGRFeatureDefn      *poDefn;
<a name="l00164"></a>00164     <a class="code" href="classOGRGeometry.html">OGRGeometry</a>         *poGeometry;
<a name="l00165"></a>00165     <a class="code" href="unionOGRField.html">OGRField</a>            *pauFields;
<a name="l00166"></a>00166 
<a name="l00167"></a>00167   <span class="keyword">protected</span>: 
<a name="l00168"></a>00168     <span class="keywordtype">char</span> *              m_pszStyleString;
<a name="l00169"></a>00169     OGRStyleTable       *m_poStyleTable;
<a name="l00170"></a>00170     <span class="keywordtype">char</span> *              m_pszTmpFieldValue;
<a name="l00171"></a>00171     
<a name="l00172"></a>00172   <span class="keyword">public</span>:
<a name="l00173"></a>00173                         OGRFeature( OGRFeatureDefn * );
<a name="l00174"></a>00174     <span class="keyword">virtual</span>            ~OGRFeature();                        
<a name="l00175"></a>00175 
<a name="l00176"></a><a class="code" href="classOGRFeature.html#01ef8d59265a7ab7a575387a8269bf92">00176</a>     OGRFeatureDefn     *GetDefnRef() { <span class="keywordflow">return</span> poDefn; }
<a name="l00177"></a>00177     
<a name="l00178"></a>00178     OGRErr              SetGeometryDirectly( <a class="code" href="classOGRGeometry.html">OGRGeometry</a> * );
<a name="l00179"></a>00179     OGRErr              SetGeometry( <a class="code" href="classOGRGeometry.html">OGRGeometry</a> * );
<a name="l00180"></a><a class="code" href="classOGRFeature.html#cc966ce8c10ae3ddf9f14c2736fdce9a">00180</a>     <a class="code" href="classOGRGeometry.html">OGRGeometry</a>        *GetGeometryRef() { <span class="keywordflow">return</span> poGeometry; }
<a name="l00181"></a>00181     <a class="code" href="classOGRGeometry.html">OGRGeometry</a>        *StealGeometry();
<a name="l00182"></a>00182 
<a name="l00183"></a>00183     OGRFeature         *Clone();
<a name="l00184"></a>00184     <span class="keyword">virtual</span> OGRBoolean  Equal( OGRFeature * poFeature );
<a name="l00185"></a>00185 
<a name="l00186"></a><a class="code" href="classOGRFeature.html#b7f4eb0c098a9456d4005828127cdde0">00186</a>     <span class="keywordtype">int</span>                 GetFieldCount() { <span class="keywordflow">return</span> poDefn-&gt;GetFieldCount(); }
<a name="l00187"></a><a class="code" href="classOGRFeature.html#35aba5a674e9901eccf1e7d90d97d773">00187</a>     <a class="code" href="classOGRFieldDefn.html">OGRFieldDefn</a>       *GetFieldDefnRef( <span class="keywordtype">int</span> iField )
<a name="l00188"></a>00188                                       { <span class="keywordflow">return</span> poDefn-&gt;GetFieldDefn(iField); }
<a name="l00189"></a><a class="code" href="classOGRFeature.html#b49421f777e56b7cb41169f1301a7b21">00189</a>     <span class="keywordtype">int</span>                 GetFieldIndex( <span class="keyword">const</span> <span class="keywordtype">char</span> * pszName)
<a name="l00190"></a>00190                                       { <span class="keywordflow">return</span> poDefn-&gt;GetFieldIndex(pszName);}
<a name="l00191"></a>00191 
<a name="l00192"></a>00192     <span class="keywordtype">int</span>                 IsFieldSet( <span class="keywordtype">int</span> iField )<span class="keyword"> const</span>
<a name="l00193"></a>00193 <span class="keyword">                        </span>{ <span class="keywordflow">return</span>
<a name="l00194"></a>00194                               pauFields[iField].Set.nMarker1 != OGRUnsetMarker
<a name="l00195"></a>00195                            || pauFields[iField].Set.nMarker2 != OGRUnsetMarker;
<a name="l00196"></a>00196                               }
<a name="l00197"></a>00197     
<a name="l00198"></a>00198     <span class="keywordtype">void</span>                UnsetField( <span class="keywordtype">int</span> iField );
<a name="l00199"></a>00199     
<a name="l00200"></a><a class="code" href="classOGRFeature.html#e7f676d5a8e1f62d80b438c13b159ee0">00200</a>     <a class="code" href="unionOGRField.html">OGRField</a>           *GetRawFieldRef( <span class="keywordtype">int</span> i ) { <span class="keywordflow">return</span> pauFields + i; }
<a name="l00201"></a>00201 
<a name="l00202"></a>00202     <span class="keywordtype">int</span>                 GetFieldAsInteger( <span class="keywordtype">int</span> i );
<a name="l00203"></a>00203     <span class="keywordtype">double</span>              GetFieldAsDouble( <span class="keywordtype">int</span> i );
<a name="l00204"></a>00204     <span class="keyword">const</span> <span class="keywordtype">char</span>         *GetFieldAsString( <span class="keywordtype">int</span> i );
<a name="l00205"></a>00205     <span class="keyword">const</span> <span class="keywordtype">int</span>          *GetFieldAsIntegerList( <span class="keywordtype">int</span> i, <span class="keywordtype">int</span> *pnCount );
<a name="l00206"></a>00206     <span class="keyword">const</span> <span class="keywordtype">double</span>       *GetFieldAsDoubleList( <span class="keywordtype">int</span> i, <span class="keywordtype">int</span> *pnCount );
<a name="l00207"></a>00207     <span class="keywordtype">char</span>              **GetFieldAsStringList( <span class="keywordtype">int</span> i ) <span class="keyword">const</span>;
<a name="l00208"></a>00208     GByte              *GetFieldAsBinary( <span class="keywordtype">int</span> i, <span class="keywordtype">int</span> *pnCount );
<a name="l00209"></a>00209     <span class="keywordtype">int</span>                 GetFieldAsDateTime( <span class="keywordtype">int</span> i, 
<a name="l00210"></a>00210                                      <span class="keywordtype">int</span> *pnYear, <span class="keywordtype">int</span> *pnMonth, <span class="keywordtype">int</span> *pnDay,
<a name="l00211"></a>00211                                      <span class="keywordtype">int</span> *pnHour, <span class="keywordtype">int</span> *pnMinute, <span class="keywordtype">int</span> *pnSecond, 
<a name="l00212"></a>00212                                      <span class="keywordtype">int</span> *pnTZFlag );
<a name="l00213"></a>00213 
<a name="l00214"></a>00214     <span class="keywordtype">int</span>                 GetFieldAsInteger( <span class="keyword">const</span> <span class="keywordtype">char</span> *pszFName )
<a name="l00215"></a>00215                       { <span class="keywordflow">return</span> GetFieldAsInteger( GetFieldIndex(pszFName) ); }
<a name="l00216"></a>00216     <span class="keywordtype">double</span>              GetFieldAsDouble( <span class="keyword">const</span> <span class="keywordtype">char</span> *pszFName )
<a name="l00217"></a>00217                       { <span class="keywordflow">return</span> GetFieldAsDouble( GetFieldIndex(pszFName) ); }
<a name="l00218"></a>00218     <span class="keyword">const</span> <span class="keywordtype">char</span>         *GetFieldAsString( <span class="keyword">const</span> <span class="keywordtype">char</span> *pszFName )
<a name="l00219"></a>00219                       { <span class="keywordflow">return</span> GetFieldAsString( GetFieldIndex(pszFName) ); }
<a name="l00220"></a>00220     <span class="keyword">const</span> <span class="keywordtype">int</span>          *GetFieldAsIntegerList( <span class="keyword">const</span> <span class="keywordtype">char</span> *pszFName,