ogr__geometry_8h-source.html

gdal库的学习文档

<a name="l00100"></a>00100     <span class="comment">// non-standard</span>
<a name="l00101"></a>00101     <span class="keyword">virtual</span> OGRwkbGeometryType getGeometryType() <span class="keyword">const </span>= 0;
<a name="l00102"></a>00102     <span class="keyword">virtual</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *getGeometryName() <span class="keyword">const </span>= 0;
<a name="l00103"></a>00103     <span class="keyword">virtual</span> <span class="keywordtype">void</span>   dumpReadable( FILE *, <span class="keyword">const</span> <span class="keywordtype">char</span> * = NULL ) <span class="keyword">const</span>;
<a name="l00104"></a>00104     <span class="keyword">virtual</span> <span class="keywordtype">void</span>   flattenTo2D() = 0;
<a name="l00105"></a>00105     <span class="keyword">virtual</span> <span class="keywordtype">char</span> * exportToGML() <span class="keyword">const</span>;
<a name="l00106"></a>00106     <span class="keyword">virtual</span> GEOSGeom exportToGEOS() <span class="keyword">const</span>;
<a name="l00107"></a>00107     <span class="keyword">virtual</span> <span class="keywordtype">void</span> closeRings();
<a name="l00108"></a>00108 
<a name="l00109"></a>00109     <span class="keyword">virtual</span> <span class="keywordtype">void</span> setCoordinateDimension( <span class="keywordtype">int</span> nDimension ); 
<a name="l00110"></a>00110 
<a name="l00111"></a>00111     <span class="keywordtype">void</span>    assignSpatialReference( <a class="code" href="classOGRSpatialReference.html">OGRSpatialReference</a> * poSR );
<a name="l00112"></a><a class="code" href="classOGRGeometry.html#66a53c103e37c6d1ead00d2d74586ddd">00112</a>     <a class="code" href="classOGRSpatialReference.html">OGRSpatialReference</a> *getSpatialReference( <span class="keywordtype">void</span> )<span class="keyword"> const </span>{ <span class="keywordflow">return</span> poSRS; }
<a name="l00113"></a>00113 
<a name="l00114"></a>00114     <span class="keyword">virtual</span> OGRErr  transform( <a class="code" href="classOGRCoordinateTransformation.html">OGRCoordinateTransformation</a> *poCT ) = 0;
<a name="l00115"></a>00115     OGRErr  transformTo( <a class="code" href="classOGRSpatialReference.html">OGRSpatialReference</a> *poSR );
<a name="l00116"></a>00116 
<a name="l00117"></a>00117     <span class="comment">// ISpatialRelation</span>
<a name="l00118"></a>00118     <span class="keyword">virtual</span> OGRBoolean  Intersects( <a class="code" href="classOGRGeometry.html">OGRGeometry</a> * ) <span class="keyword">const</span>;
<a name="l00119"></a>00119     <span class="keyword">virtual</span> OGRBoolean  Equals( <a class="code" href="classOGRGeometry.html">OGRGeometry</a> * ) <span class="keyword">const </span>= 0;
<a name="l00120"></a>00120     <span class="keyword">virtual</span> OGRBoolean  Disjoint( <span class="keyword">const</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> * ) <span class="keyword">const</span>;
<a name="l00121"></a>00121     <span class="keyword">virtual</span> OGRBoolean  Touches( <span class="keyword">const</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> * ) <span class="keyword">const</span>;
<a name="l00122"></a>00122     <span class="keyword">virtual</span> OGRBoolean  Crosses( <span class="keyword">const</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> * ) <span class="keyword">const</span>;
<a name="l00123"></a>00123     <span class="keyword">virtual</span> OGRBoolean  Within( <span class="keyword">const</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> * ) <span class="keyword">const</span>;
<a name="l00124"></a>00124     <span class="keyword">virtual</span> OGRBoolean  Contains( <span class="keyword">const</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> * ) <span class="keyword">const</span>;
<a name="l00125"></a>00125     <span class="keyword">virtual</span> OGRBoolean  Overlaps( <span class="keyword">const</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> * ) <span class="keyword">const</span>;
<a name="l00126"></a>00126 <span class="comment">//    virtual OGRBoolean  Relate( const OGRGeometry *, const char * ) const;</span>
<a name="l00127"></a>00127 
<a name="l00128"></a>00128     <span class="keyword">virtual</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> *getBoundary() <span class="keyword">const</span>;
<a name="l00129"></a>00129     <span class="keyword">virtual</span> <span class="keywordtype">double</span>  Distance( <span class="keyword">const</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> * ) <span class="keyword">const</span>;
<a name="l00130"></a>00130     <span class="keyword">virtual</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> *ConvexHull() <span class="keyword">const</span>;
<a name="l00131"></a>00131     <span class="keyword">virtual</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> *Buffer( <span class="keywordtype">double</span> dfDist, <span class="keywordtype">int</span> nQuadSegs = 30 ) <span class="keyword">const</span>;
<a name="l00132"></a>00132     <span class="keyword">virtual</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> *Intersection( <span class="keyword">const</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> *) <span class="keyword">const</span>;
<a name="l00133"></a>00133     <span class="keyword">virtual</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> *Union( <span class="keyword">const</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> * ) <span class="keyword">const</span>;
<a name="l00134"></a>00134     <span class="keyword">virtual</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> *Difference( <span class="keyword">const</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> * ) <span class="keyword">const</span>;
<a name="l00135"></a>00135     <span class="keyword">virtual</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> *SymmetricDifference( <span class="keyword">const</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> * ) <span class="keyword">const</span>;
<a name="l00136"></a>00136 
<a name="l00137"></a>00137     <span class="comment">// backward compatibility methods. </span>
<a name="l00138"></a>00138     OGRBoolean  Intersect( <a class="code" href="classOGRGeometry.html">OGRGeometry</a> * ) <span class="keyword">const</span>;
<a name="l00139"></a>00139     OGRBoolean  Equal( <a class="code" href="classOGRGeometry.html">OGRGeometry</a> * ) <span class="keyword">const</span>;
<a name="l00140"></a>00140 
<a name="l00141"></a>00141     <span class="comment">// Special HACK for DB2 7.2 support</span>
<a name="l00142"></a>00142     <span class="keyword">static</span> <span class="keywordtype">int</span> bGenerate_DB2_V72_BYTE_ORDER;
<a name="l00143"></a>00143 };
<a name="l00144"></a>00144 
<a name="l00145"></a>00145 <span class="comment">/************************************************************************/</span>
<a name="l00146"></a>00146 <span class="comment">/*                               OGRPoint                               */</span>
<a name="l00147"></a>00147 <span class="comment">/************************************************************************/</span>
<a name="l00148"></a>00148 
<a name="l00155"></a><a class="code" href="classOGRPoint.html">00155</a> <span class="keyword">class </span>CPL_DLL OGRPoint : <span class="keyword">public</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a>
<a name="l00156"></a>00156 {
<a name="l00157"></a>00157     <span class="keywordtype">double</span>      x;
<a name="l00158"></a>00158     <span class="keywordtype">double</span>      y;
<a name="l00159"></a>00159     <span class="keywordtype">double</span>      z;
<a name="l00160"></a>00160 
<a name="l00161"></a>00161   <span class="keyword">public</span>:
<a name="l00162"></a>00162                 OGRPoint();
<a name="l00163"></a>00163                 OGRPoint( <span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y );
<a name="l00164"></a>00164                 OGRPoint( <span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, <span class="keywordtype">double</span> z );
<a name="l00165"></a>00165     <span class="keyword">virtual</span>     ~OGRPoint();
<a name="l00166"></a>00166 
<a name="l00167"></a>00167     <span class="comment">// IWks Interface</span>
<a name="l00168"></a>00168     <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classOGRGeometry.html#68215bd90d675b7627a798b162c54ab1">WkbSize</a>() <span class="keyword">const</span>;
<a name="l00169"></a>00169     <span class="keyword">virtual</span> OGRErr <a class="code" href="classOGRGeometry.html#b2c6583c2b7c3e526dcfe54a61470c1f">importFromWkb</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *, <span class="keywordtype">int</span>=-1 );
<a name="l00170"></a>00170     <span class="keyword">virtual</span> OGRErr <a class="code" href="classOGRGeometry.html#6fe8947602669a35136e107cd45b084d">exportToWkb</a>( OGRwkbByteOrder, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> * ) <span class="keyword">const</span>;
<a name="l00171"></a>00171     <span class="keyword">virtual</span> OGRErr <a class="code" href="classOGRGeometry.html#30561a301d44b1f90393ea4a78a5b0a5">importFromWkt</a>( <span class="keywordtype">char</span> ** );
<a name="l00172"></a>00172     <span class="keyword">virtual</span> OGRErr <a class="code" href="classOGRGeometry.html#71184265101d21cffa5c50ee79afdd61">exportToWkt</a>( <span class="keywordtype">char</span> ** ppszDstText ) <span class="keyword">const</span>;
<a name="l00173"></a>00173     
<a name="l00174"></a>00174     <span class="comment">// IGeometry</span>
<a name="l00175"></a>00175     <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classOGRGeometry.html#266c427f00ea35fdc503393c210a115d">getDimension</a>() <span class="keyword">const</span>;
<a name="l00176"></a>00176     <span class="keyword">virtual</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a> *<a class="code" href="classOGRGeometry.html#f2fe60f2bde104cb3eef16475f3f3cd8">clone</a>() <span class="keyword">const</span>;
<a name="l00177"></a>00177     <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classOGRGeometry.html#1702b5b8142abe761061a6cd44e50b05">empty</a>();
<a name="l00178"></a>00178     <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classOGRGeometry.html#a3d42b06ae6f7bbef6d1a2886da8d398">getEnvelope</a>( <a class="code" href="classOGREnvelope.html">OGREnvelope</a> * psEnvelope ) <span class="keyword">const</span>;
<a name="l00179"></a>00179 
<a name="l00180"></a>00180     <span class="comment">// IPoint</span>
<a name="l00181"></a><a class="code" href="classOGRPoint.html#5170ea70ce7458059e4395f852fce687">00181</a>     <span class="keywordtype">double</span>      getX()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> x; } 
<a name="l00182"></a><a class="code" href="classOGRPoint.html#dbb341223a71d4563315a587f0454f66">00182</a>     <span class="keywordtype">double</span>      getY()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> y; }
<a name="l00183"></a><a class="code" href="classOGRPoint.html#ccb9ac6df25779eb10381231cd411374">00183</a>     <span class="keywordtype">double</span>      getZ()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> z; }
<a name="l00184"></a>00184 
<a name="l00185"></a>00185     <span class="comment">// Non standard</span>
<a name="l00186"></a>00186     <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classOGRGeometry.html#79f84a2b948d511f28c47c47577dea49">setCoordinateDimension</a>( <span class="keywordtype">int</span> nDimension ); 
<a name="l00187"></a><a class="code" href="classOGRPoint.html#0eef5e2d9e0edeca0e0f06c7527facb4">00187</a>     <span class="keywordtype">void</span>        setX( <span class="keywordtype">double</span> xIn ) { x = xIn; }
<a name="l00188"></a><a class="code" href="classOGRPoint.html#b064eaaedb2140ed1410e7c2ce4ad1ca">00188</a>     <span class="keywordtype">void</span>        setY( <span class="keywordtype">double</span> yIn ) { y = yIn; }
<a name="l00189"></a><a class="code" href="classOGRPoint.html#4330c36258125d939a4ecbbc3bfe66ce">00189</a>     <span class="keywordtype">void</span>        setZ( <span class="keywordtype">double</span> zIn ) { z = zIn; nCoordDimension=3; }
<a name="l00190"></a>00190 
<a name="l00191"></a>00191     <span class="comment">// ISpatialRelation</span>
<a name="l00192"></a>00192     <span class="keyword">virtual</span> OGRBoolean  <a class="code" href="classOGRGeometry.html#e751513a46c7e7b154796bfe494faf16">Equals</a>( <a class="code" href="classOGRGeometry.html">OGRGeometry</a> * ) <span class="keyword">const</span>;
<a name="l00193"></a>00193     
<a name="l00194"></a>00194     <span class="comment">// Non standard from OGRGeometry</span>
<a name="l00195"></a>00195     <span class="keyword">virtual</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="classOGRGeometry.html#b9c97ddc4876f1aa563cc4c075bfb251">getGeometryName</a>() <span class="keyword">const</span>;
<a name="l00196"></a>00196     <span class="keyword">virtual</span> OGRwkbGeometryType <a class="code" href="classOGRGeometry.html#26fef0fc5e95c9e8e526922476c778bd">getGeometryType</a>() <span class="keyword">const</span>;
<a name="l00197"></a>00197     <span class="keyword">virtual</span> OGRErr  <a class="code" href="classOGRGeometry.html#a9e8bfb3c2129f25cf622660f734e1ba">transform</a>( <a class="code" href="classOGRCoordinateTransformation.html">OGRCoordinateTransformation</a> *poCT );
<a name="l00198"></a>00198     <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classOGRGeometry.html#aae1a2ced937a5900b2bfeb717bad6c9">flattenTo2D</a>();
<a name="l00199"></a>00199 
<a name="l00200"></a>00200 };
<a name="l00201"></a>00201 
<a name="l00202"></a>00202 <span class="comment">/************************************************************************/</span>
<a name="l00203"></a>00203 <span class="comment">/*                               OGRCurve                               */</span>
<a name="l00204"></a>00204 <span class="comment">/************************************************************************/</span>
<a name="l00205"></a>00205 
<a name="l00210"></a><a class="code" href="classOGRCurve.html">00210</a> <span class="keyword">class </span>CPL_DLL OGRCurve : <span class="keyword">public</span> <a class="code" href="classOGRGeometry.html">OGRGeometry</a>