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# gdal_rat.h

    00001 /******************************************************************************
    00002  * $Id: gdal_rat.h 10645 2007-01-18 02:22:39Z warmerdam $
    00003  *
    00004  * Project:  GDAL Core
    00005  * Purpose:  GDALRasterAttributeTable class declarations.
    00006  * Author:   Frank Warmerdam, warmerdam@pobox.com
    00007  *
    00008  ******************************************************************************
    00009  * Copyright (c) 2005, Frank Warmerdam <warmerdam@pobox.com>
    00010  *
    00011  * Permission is hereby granted, free of charge, to any person obtaining a
    00012  * copy of this software and associated documentation files (the "Software"),
    00013  * to deal in the Software without restriction, including without limitation
    00014  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
    00015  * and/or sell copies of the Software, and to permit persons to whom the
    00016  * Software is furnished to do so, subject to the following conditions:
    00017  *
    00018  * The above copyright notice and this permission notice shall be included
    00019  * in all copies or substantial portions of the Software.
    00020  *
    00021  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
    00022  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    00023  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
    00024  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    00025  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
    00026  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
    00027  * DEALINGS IN THE SOFTWARE.
    00028  ****************************************************************************/
    00029
    00030 #ifndef GDAL_RAT_H_INCLUDED
    00031 #define GDAL_RAT_H_INCLUDED
    00032
    00033 #include "cpl_minixml.h"
    00034
    00035 /************************************************************************/
    00036 /*                       GDALRasterAttributeField                       */
    00037 /*                                                                      */
    00038 /*      (private)                                                       */
    00039 /************************************************************************/
    00040
    00041 class GDALRasterAttributeField
    00042 {
    00043 public:
    00044     CPLString         sName;
    00045
    00046     GDALRATFieldType  eType;
    00047
    00048     GDALRATFieldUsage eUsage;
    00049
    00050     std::vector<GInt32> anValues;
    00051     std::vector<double> adfValues;
    00052     std::vector<CPLString> aosValues;
    00053 };
    00054
    00055 /************************************************************************/
    00056 /*                       GDALRasterAttributeTable                       */
    00057 /************************************************************************/
    00058
    00060
    00061 class CPL_DLL GDALRasterAttributeTable
    00062 {
    00063     friend const char * CPL_STDCALL GDALRATGetNameOfCol( GDALRasterAttributeTableH, int );
    00064     friend const char * CPL_STDCALL GDALRATGetValueAsString( GDALRasterAttributeTableH, int, int );
    00065
    00066 private:
    00067     std::vector<GDALRasterAttributeField> aoFields;
    00068
    00069     int bLinearBinning;
    00070     double dfRow0Min;
    00071     double dfBinSize;
    00072
    00073     void  AnalyseColumns();
    00074     int   bColumnsAnalysed;
    00075     int   nMinCol;
    00076     int   nMaxCol;
    00077
    00078     int   nRowCount;
    00079
    00080     CPLString     osWorkingResult;
    00081
    00082 public:
    00083     GDALRasterAttributeTable();
    00084     GDALRasterAttributeTable(const GDALRasterAttributeTable&);
    00085     ~GDALRasterAttributeTable();
    00086
    00087     GDALRasterAttributeTable *Clone() const;
    00088
    00089     int           GetColumnCount() const;
    00090
    00091     const char   *GetNameOfCol( int ) const;
    00092     GDALRATFieldUsage GetUsageOfCol( int ) const;
    00093     GDALRATFieldType GetTypeOfCol( int ) const;
    00094
    00095     int           GetColOfUsage( GDALRATFieldUsage ) const;
    00096
    00097     int           GetRowCount() const;
    00098
    00099     const char   *GetValueAsString( int iRow, int iField ) const;
    00100     int           GetValueAsInt( int iRow, int iField ) const;
    00101     double        GetValueAsDouble( int iRow, int iField ) const;
    00102
    00103     void          SetValue( int iRow, int iField, const char *pszValue );
    00104     void          SetValue( int iRow, int iField, double dfValue);
    00105     void          SetValue( int iRow, int iField, int nValue );
    00106     void          SetRowCount( int iCount );
    00107
    00108     int           GetRowOfValue( double dfValue ) const;
    00109     int           GetRowOfValue( int nValue ) const;
    00110     int           GetColorOfValue( double dfValue, GDALColorEntry *psEntry ) const;
    00111
    00112     double        GetRowMin( int iRow ) const;
    00113     double        GetRowMax( int iRow ) const;
    00114
    00115     CPLErr        CreateColumn( const char *pszFieldName,
    00116                                 GDALRATFieldType eFieldType,
    00117                                 GDALRATFieldUsage eFieldUsage );
    00118     CPLErr        SetLinearBinning( double dfRow0Min, double dfBinSize );
    00119     int           GetLinearBinning( double *pdfRow0Min, double *pdfBinSize ) const;
    00120
    00121     CPLXMLNode   *Serialize() const;
    00122     CPLErr        XMLInit( CPLXMLNode *, const char * );
    00123
    00124     CPLErr        InitializeFromColorTable( const GDALColorTable * );
    00125     GDALColorTable *TranslateToColorTable( int nEntryCount = -1 );
    00126
    00127     void          DumpReadable( FILE * = NULL );
    00128 };
    00129
    00130 #endif /* ndef GDAL_RAT_H_INCLUDED */

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