vrtdataset_8h-source.html

gdal库的学习文档

<a name="l00214"></a>00214     <span class="keyword">virtual</span> CPLErr <a class="code" href="classGDALMajorObject.html#61ab7226d95b20e3e1f42461a1f62906">SetMetadata</a>( <span class="keywordtype">char</span> **papszMD, <span class="keyword">const</span> <span class="keywordtype">char</span> *pszDomain = <span class="stringliteral">""</span> );
<a name="l00215"></a>00215     <span class="keyword">virtual</span> CPLErr <a class="code" href="classGDALMajorObject.html#3e157735f6ff6e11935c2a2dbcc24c92">SetMetadataItem</a>( <span class="keyword">const</span> <span class="keywordtype">char</span> *pszName, <span class="keyword">const</span> <span class="keywordtype">char</span> *pszValue,
<a name="l00216"></a>00216                                     <span class="keyword">const</span> <span class="keywordtype">char</span> *pszDomain = <span class="stringliteral">""</span> );
<a name="l00217"></a>00217 
<a name="l00218"></a>00218     <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="classGDALRasterBand.html#b62e0761dde3e3b76f83155920275e4f">GetOffset</a>( <span class="keywordtype">int</span> *pbSuccess = NULL );
<a name="l00219"></a>00219     CPLErr <a class="code" href="classGDALRasterBand.html#44e23beb3418c44a89d25ea708207fe1">SetOffset</a>( <span class="keywordtype">double</span> );
<a name="l00220"></a>00220     <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="classGDALRasterBand.html#94f689e571b963cf8d35989b60269d1e">GetScale</a>( <span class="keywordtype">int</span> *pbSuccess = NULL );
<a name="l00221"></a>00221     CPLErr <a class="code" href="classGDALRasterBand.html#0b04ff1f0130dd7634cd01f6c1780835">SetScale</a>( <span class="keywordtype">double</span> );
<a name="l00222"></a>00222     
<a name="l00223"></a>00223     <span class="keyword">virtual</span> CPLErr  <a class="code" href="classGDALRasterBand.html#3f8889607d3b2294f7e0f11181c201c8">GetHistogram</a>( <span class="keywordtype">double</span> dfMin, <span class="keywordtype">double</span> dfMax,
<a name="l00224"></a>00224                           <span class="keywordtype">int</span> nBuckets, <span class="keywordtype">int</span> * panHistogram,
<a name="l00225"></a>00225                           <span class="keywordtype">int</span> bIncludeOutOfRange, <span class="keywordtype">int</span> bApproxOK,
<a name="l00226"></a>00226                           GDALProgressFunc, <span class="keywordtype">void</span> *pProgressData );
<a name="l00227"></a>00227 
<a name="l00228"></a>00228     <span class="keyword">virtual</span> CPLErr <a class="code" href="classGDALRasterBand.html#feffe2ed8bfdc3d84200a57068ad0945">GetDefaultHistogram</a>( <span class="keywordtype">double</span> *pdfMin, <span class="keywordtype">double</span> *pdfMax,
<a name="l00229"></a>00229                                         <span class="keywordtype">int</span> *pnBuckets, <span class="keywordtype">int</span> ** ppanHistogram,
<a name="l00230"></a>00230                                         <span class="keywordtype">int</span> bForce,
<a name="l00231"></a>00231                                         GDALProgressFunc, <span class="keywordtype">void</span> *pProgressData);
<a name="l00232"></a>00232 
<a name="l00233"></a>00233     <span class="keyword">virtual</span> CPLErr SetDefaultHistogram( <span class="keywordtype">double</span> dfMin, <span class="keywordtype">double</span> dfMax,
<a name="l00234"></a>00234                                         <span class="keywordtype">int</span> nBuckets, <span class="keywordtype">int</span> *panHistogram );
<a name="l00235"></a>00235 
<a name="l00236"></a>00236     CPLErr         CopyCommonInfoFrom( <a class="code" href="classGDALRasterBand.html">GDALRasterBand</a> * );
<a name="l00237"></a>00237 };
<a name="l00238"></a>00238 
<a name="l00239"></a>00239 <span class="comment">/************************************************************************/</span>
<a name="l00240"></a>00240 <span class="comment">/*                         VRTSourcedRasterBand                         */</span>
<a name="l00241"></a>00241 <span class="comment">/************************************************************************/</span>
<a name="l00242"></a>00242 
<a name="l00243"></a>00243 <span class="keyword">class </span>CPL_DLL VRTSourcedRasterBand : <span class="keyword">public</span> VRTRasterBand
<a name="l00244"></a>00244 {
<a name="l00245"></a>00245 
<a name="l00246"></a>00246     <span class="keywordtype">void</span>           Initialize( <span class="keywordtype">int</span> nXSize, <span class="keywordtype">int</span> nYSize );
<a name="l00247"></a>00247 
<a name="l00248"></a>00248   <span class="keyword">public</span>:
<a name="l00249"></a>00249     <span class="keywordtype">int</span>            nSources;
<a name="l00250"></a>00250     VRTSource    **papoSources;
<a name="l00251"></a>00251     <span class="keywordtype">int</span>            bEqualAreas;
<a name="l00252"></a>00252 
<a name="l00253"></a>00253                    VRTSourcedRasterBand( <a class="code" href="classGDALDataset.html">GDALDataset</a> *poDS, <span class="keywordtype">int</span> nBand );
<a name="l00254"></a>00254                    VRTSourcedRasterBand( <a class="code" href="gdal_8h.html#22e22ce0a55036a96f652765793fb7a4">GDALDataType</a> eType, 
<a name="l00255"></a>00255                                          <span class="keywordtype">int</span> nXSize, <span class="keywordtype">int</span> nYSize );
<a name="l00256"></a>00256                    VRTSourcedRasterBand( <a class="code" href="classGDALDataset.html">GDALDataset</a> *poDS, <span class="keywordtype">int</span> nBand, 
<a name="l00257"></a>00257                                          <a class="code" href="gdal_8h.html#22e22ce0a55036a96f652765793fb7a4">GDALDataType</a> eType, 
<a name="l00258"></a>00258                                          <span class="keywordtype">int</span> nXSize, <span class="keywordtype">int</span> nYSize );
<a name="l00259"></a>00259     <span class="keyword">virtual</span>        ~VRTSourcedRasterBand();
<a name="l00260"></a>00260 
<a name="l00261"></a>00261     <span class="keyword">virtual</span> CPLErr IRasterIO( <a class="code" href="gdal_8h.html#e602fdf251b6b0210a5af5a7cf7623b3">GDALRWFlag</a>, <span class="keywordtype">int</span>, <span class="keywordtype">int</span>, <span class="keywordtype">int</span>, <span class="keywordtype">int</span>,
<a name="l00262"></a>00262                               <span class="keywordtype">void</span> *, <span class="keywordtype">int</span>, <span class="keywordtype">int</span>, <a class="code" href="gdal_8h.html#22e22ce0a55036a96f652765793fb7a4">GDALDataType</a>,
<a name="l00263"></a>00263                               <span class="keywordtype">int</span>, <span class="keywordtype">int</span> );
<a name="l00264"></a>00264 
<a name="l00265"></a>00265     <span class="keyword">virtual</span> <span class="keywordtype">char</span>      **GetMetadata( <span class="keyword">const</span> <span class="keywordtype">char</span> * pszDomain = <span class="stringliteral">""</span> );
<a name="l00266"></a>00266     <span class="keyword">virtual</span> CPLErr      SetMetadata( <span class="keywordtype">char</span> ** papszMetadata,
<a name="l00267"></a>00267                                      <span class="keyword">const</span> <span class="keywordtype">char</span> * pszDomain = <span class="stringliteral">""</span> );
<a name="l00268"></a>00268     <span class="keyword">virtual</span> CPLErr      SetMetadataItem( <span class="keyword">const</span> <span class="keywordtype">char</span> * pszName,
<a name="l00269"></a>00269                                          <span class="keyword">const</span> <span class="keywordtype">char</span> * pszValue,
<a name="l00270"></a>00270                                          <span class="keyword">const</span> <span class="keywordtype">char</span> * pszDomain = <span class="stringliteral">""</span> );
<a name="l00271"></a>00271 
<a name="l00272"></a>00272     <span class="keyword">virtual</span> CPLErr         XMLInit( <a class="code" href="struct__CPLXMLNode.html">CPLXMLNode</a> *, <span class="keyword">const</span> <span class="keywordtype">char</span> * );
<a name="l00273"></a>00273     <span class="keyword">virtual</span> <a class="code" href="struct__CPLXMLNode.html">CPLXMLNode</a> *   SerializeToXML( <span class="keyword">const</span> <span class="keywordtype">char</span> *pszVRTPath );
<a name="l00274"></a>00274 
<a name="l00275"></a>00275     CPLErr         AddSource( VRTSource * );
<a name="l00276"></a>00276     CPLErr         AddSimpleSource( <a class="code" href="classGDALRasterBand.html">GDALRasterBand</a> *poSrcBand, 
<a name="l00277"></a>00277                                     <span class="keywordtype">int</span> nSrcXOff=-1, <span class="keywordtype">int</span> nSrcYOff=-1, 
<a name="l00278"></a>00278                                     <span class="keywordtype">int</span> nSrcXSize=-1, <span class="keywordtype">int</span> nSrcYSize=-1, 
<a name="l00279"></a>00279                                     <span class="keywordtype">int</span> nDstXOff=-1, <span class="keywordtype">int</span> nDstYOff=-1, 
<a name="l00280"></a>00280                                     <span class="keywordtype">int</span> nDstXSize=-1, <span class="keywordtype">int</span> nDstYSize=-1,
<a name="l00281"></a>00281                                     <span class="keyword">const</span> <span class="keywordtype">char</span> *pszResampling = <span class="stringliteral">"near"</span>,
<a name="l00282"></a>00282                                     <span class="keywordtype">double</span> dfNoDataValue = VRT_NODATA_UNSET);
<a name="l00283"></a>00283     CPLErr         AddComplexSource( <a class="code" href="classGDALRasterBand.html">GDALRasterBand</a> *poSrcBand, 
<a name="l00284"></a>00284                                      <span class="keywordtype">int</span> nSrcXOff=-1, <span class="keywordtype">int</span> nSrcYOff=-1, 
<a name="l00285"></a>00285                                      <span class="keywordtype">int</span> nSrcXSize=-1, <span class="keywordtype">int</span> nSrcYSize=-1, 
<a name="l00286"></a>00286                                      <span class="keywordtype">int</span> nDstXOff=-1, <span class="keywordtype">int</span> nDstYOff=-1, 
<a name="l00287"></a>00287                                      <span class="keywordtype">int</span> nDstXSize=-1, <span class="keywordtype">int</span> nDstYSize=-1,
<a name="l00288"></a>00288                                      <span class="keywordtype">double</span> dfScaleOff=0.0, 
<a name="l00289"></a>00289                                      <span class="keywordtype">double</span> dfScaleRatio=1.0,
<a name="l00290"></a>00290                                      <span class="keywordtype">double</span> dfNoDataValue = VRT_NODATA_UNSET);
<a name="l00291"></a>00291 
<a name="l00292"></a>00292     CPLErr         AddFuncSource( VRTImageReadFunc pfnReadFunc, <span class="keywordtype">void</span> *hCBData,
<a name="l00293"></a>00293                                   <span class="keywordtype">double</span> dfNoDataValue = VRT_NODATA_UNSET );
<a name="l00294"></a>00294 
<a name="l00295"></a>00295 
<a name="l00296"></a>00296     <span class="keyword">virtual</span> CPLErr IReadBlock( <span class="keywordtype">int</span>, <span class="keywordtype">int</span>, <span class="keywordtype">void</span> * );
<a name="l00297"></a>00297 };
<a name="l00298"></a>00298 
<a name="l00299"></a>00299 <span class="comment">/************************************************************************/</span>
<a name="l00300"></a>00300 <span class="comment">/*                         VRTWarpedRasterBand                          */</span>
<a name="l00301"></a>00301 <span class="comment">/************************************************************************/</span>
<a name="l00302"></a>00302 
<a name="l00303"></a>00303 <span class="keyword">class </span>CPL_DLL VRTWarpedRasterBand : <span class="keyword">public</span> VRTRasterBand
<a name="l00304"></a>00304 {
<a name="l00305"></a>00305   <span class="keyword">public</span>:
<a name="l00306"></a>00306                    VRTWarpedRasterBand( <a class="code" href="classGDALDataset.html">GDALDataset</a> *poDS, <span class="keywordtype">int</span> nBand,
<a name="l00307"></a>00307                                      <a class="code" href="gdal_8h.html#22e22ce0a55036a96f652765793fb7a4">GDALDataType</a> eType = GDT_Unknown );
<a name="l00308"></a>00308     <span class="keyword">virtual</span>        ~VRTWarpedRasterBand();
<a name="l00309"></a>00309 
<a name="l00310"></a>00310     <span class="keyword">virtual</span> CPLErr         XMLInit( <a class="code" href="struct__CPLXMLNode.html">CPLXMLNode</a> *, <span class="keyword">const</span> <span class="keywordtype">char</span> * );
<a name="l00311"></a>00311     <span class="keyword">virtual</span> <a class="code" href="struct__CPLXMLNode.html">CPLXMLNode</a> *   SerializeToXML( <span class="keyword">const</span> <span class="keywordtype">char</span> *pszVRTPath );
<a name="l00312"></a>00312 
<a name="l00313"></a>00313     <span class="keyword">virtual</span> CPLErr IReadBlock( <span class="keywordtype">int</span>, <span class="keywordtype">int</span>, <span class="keywordtype">void</span> * );
<a name="l00314"></a>00314 
<a name="l00315"></a>00315     <span class="keyword">virtual</span> <span class="keywordtype">int</span> GetOverviewCount();
<a name="l00316"></a>00316     <span class="keyword">virtual</span> <a class="code" href="classGDALRasterBand.html">GDALRasterBand</a> *GetOverview(<span class="keywordtype">int</span>);
<a name="l00317"></a>00317 };
<a name="l00318"></a>00318 
<a name="l00319"></a>00319 <span class="comment">/************************************************************************/</span>
<a name="l00320"></a>00320 <span class="comment">/*                         VRTDerivedRasterBand                         */</span>
<a name="l00321"></a>00321 <span class="comment">/************************************************************************/</span>
<a name="l00322"></a>00322 
<a name="l00323"></a>00323 <span class="keyword">class </span>CPL_DLL VRTDerivedRasterBand : <span class="keyword">public</span> VRTSourcedRasterBand
<a name="l00324"></a>00324 {
<a name="l00325"></a>00325 
<a name="l00326"></a>00326  <span class="keyword">public</span>:
<a name="l00327"></a>00327     <span class="keywordtype">char</span> *pszFuncName;
<a name="l00328"></a>00328     <a class="code" href="gdal_8h.html#22e22ce0a55036a96f652765793fb7a4">GDALDataType</a> eSourceTransferType;
<a name="l00329"></a>00329