GDAL

gdal_rat.h
1/******************************************************************************
2 * $Id$
3 *
4 * Project: GDAL Core
5 * Purpose: GDALRasterAttributeTable class declarations.
6 * Author: Frank Warmerdam, warmerdam@pobox.com
7 *
8 ******************************************************************************
9 * Copyright (c) 2005, Frank Warmerdam <warmerdam@pobox.com>
10 *
11 * Permission is hereby granted, free of charge, to any person obtaining a
12 * copy of this software and associated documentation files (the "Software"),
13 * to deal in the Software without restriction, including without limitation
14 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15 * and/or sell copies of the Software, and to permit persons to whom the
16 * Software is furnished to do so, subject to the following conditions:
17 *
18 * The above copyright notice and this permission notice shall be included
19 * in all copies or substantial portions of the Software.
20 *
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
24 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
26 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
27 * DEALINGS IN THE SOFTWARE.
28 ****************************************************************************/
29
30#ifndef GDAL_RAT_H_INCLUDED
31#define GDAL_RAT_H_INCLUDED
32
33#include "cpl_minixml.h"
34#include "gdal_priv.h"
35
36// Clone and Serialize are allowed to fail if GetRowCount()*GetColCount()
37// greater than this number
38#define RAT_MAX_ELEM_FOR_CLONE 1000000
39
40/************************************************************************/
41/* GDALRasterAttributeTable */
42/************************************************************************/
43
45 class GDALDefaultRasterAttributeTable;
46
47 class CPL_DLL GDALRasterAttributeTable
48{
49 public:
50 virtual ~GDALRasterAttributeTable();
63 virtual GDALRasterAttributeTable *Clone() const = 0;
64
72 virtual int GetColumnCount() const = 0;
73
83 virtual const char *GetNameOfCol(int iCol) const = 0;
84
94 virtual GDALRATFieldUsage GetUsageOfCol(int iCol) const = 0;
95
105 virtual GDALRATFieldType GetTypeOfCol(int iCol) const = 0;
106
119 virtual int GetColOfUsage(GDALRATFieldUsage eUsage) const = 0;
120
128 virtual int GetRowCount() const = 0;
129
147 virtual const char *GetValueAsString(int iRow, int iField) const = 0;
148
163 virtual int GetValueAsInt(int iRow, int iField) const = 0;
164
179 virtual double GetValueAsDouble(int iRow, int iField) const = 0;
180
194 virtual void SetValue(int iRow, int iField, const char *pszValue) = 0;
195
209 virtual void SetValue(int iRow, int iField, int nValue) = 0;
210
224 virtual void SetValue(int iRow, int iField, double dfValue) = 0;
225
238 virtual int ChangesAreWrittenToFile() = 0;
239
247 virtual CPLErr SetTableType(const GDALRATTableType eInTableType) = 0;
248
257 virtual GDALRATTableType GetTableType() const = 0;
258
259 virtual CPLErr ValuesIO(GDALRWFlag eRWFlag, int iField, int iStartRow,
260 int iLength, double *pdfData);
261 virtual CPLErr ValuesIO(GDALRWFlag eRWFlag, int iField, int iStartRow,
262 int iLength, int *pnData);
263 virtual CPLErr ValuesIO(GDALRWFlag eRWFlag, int iField, int iStartRow,
264 int iLength, char **papszStrList);
265
266 virtual void SetRowCount(int iCount);
267 virtual int GetRowOfValue(double dfValue) const;
268 virtual int GetRowOfValue(int nValue) const;
269
270 virtual CPLErr CreateColumn(const char *pszFieldName,
271 GDALRATFieldType eFieldType,
272 GDALRATFieldUsage eFieldUsage);
273 virtual CPLErr SetLinearBinning(double dfRow0Min, double dfBinSize);
274 virtual int GetLinearBinning(double *pdfRow0Min, double *pdfBinSize) const;
275
282 virtual CPLXMLNode *Serialize() const;
283 virtual void *SerializeJSON() const;
284 virtual CPLErr XMLInit(const CPLXMLNode *, const char *);
285
286 virtual CPLErr InitializeFromColorTable(const GDALColorTable *);
287 virtual GDALColorTable *TranslateToColorTable(int nEntryCount = -1);
288
289 virtual void DumpReadable(FILE * = nullptr);
290
294 static inline GDALRasterAttributeTableH
295 ToHandle(GDALRasterAttributeTable *poRAT)
296 {
297 return static_cast<GDALRasterAttributeTableH>(poRAT);
298 }
299
303 static inline GDALRasterAttributeTable *
304 FromHandle(GDALRasterAttributeTableH hRAT)
305 {
306 return static_cast<GDALRasterAttributeTable *>(hRAT);
307 }
308
314 virtual void RemoveStatistics() = 0;
315};
316
317/************************************************************************/
318/* GDALRasterAttributeField */
319/* */
320/* (private) */
321/************************************************************************/
323 class GDALRasterAttributeField
324{
325 public:
326 CPLString sName{};
327
328 GDALRATFieldType eType = GFT_Integer;
329
330 GDALRATFieldUsage eUsage = GFU_Generic;
331
332 std::vector<GInt32> anValues{};
333 std::vector<double> adfValues{};
334 std::vector<CPLString> aosValues{};
335};
336
338
339/************************************************************************/
340/* GDALDefaultRasterAttributeTable */
341/************************************************************************/
342
344
345 class CPL_DLL GDALDefaultRasterAttributeTable : public GDALRasterAttributeTable
346{
347 private:
348 std::vector<GDALRasterAttributeField> aoFields{};
349
350 int bLinearBinning = false; // TODO(schwehr): Can this be a bool?
351 double dfRow0Min = -0.5;
352 double dfBinSize = 1.0;
353
354 GDALRATTableType eTableType;
355
356 void AnalyseColumns();
357 int bColumnsAnalysed = false; // TODO(schwehr): Can this be a bool?
358 int nMinCol = -1;
359 int nMaxCol = -1;
360
361 int nRowCount = 0;
362
363 CPLString osWorkingResult{};
364
365 public:
366 GDALDefaultRasterAttributeTable();
367 ~GDALDefaultRasterAttributeTable() override;
368
369 GDALDefaultRasterAttributeTable *Clone() const override;
370
371 int GetColumnCount() const override;
372
373 const char *GetNameOfCol(int) const override;
374 GDALRATFieldUsage GetUsageOfCol(int) const override;
375 GDALRATFieldType GetTypeOfCol(int) const override;
376
377 int GetColOfUsage(GDALRATFieldUsage) const override;
378
379 int GetRowCount() const override;
380
381 const char *GetValueAsString(int iRow, int iField) const override;
382 int GetValueAsInt(int iRow, int iField) const override;
383 double GetValueAsDouble(int iRow, int iField) const override;
384
385 void SetValue(int iRow, int iField, const char *pszValue) override;
386 void SetValue(int iRow, int iField, double dfValue) override;
387 void SetValue(int iRow, int iField, int nValue) override;
388
389 int ChangesAreWrittenToFile() override;
390 void SetRowCount(int iCount) override;
391
392 int GetRowOfValue(double dfValue) const override;
393 int GetRowOfValue(int nValue) const override;
394
395 CPLErr CreateColumn(const char *pszFieldName, GDALRATFieldType eFieldType,
396 GDALRATFieldUsage eFieldUsage) override;
397 CPLErr SetLinearBinning(double dfRow0Min, double dfBinSize) override;
398 int GetLinearBinning(double *pdfRow0Min, double *pdfBinSize) const override;
399
400 CPLErr SetTableType(const GDALRATTableType eInTableType) override;
401 GDALRATTableType GetTableType() const override;
402
403 void RemoveStatistics() override;
404};
405
406#endif /* ndef GDAL_RAT_H_INCLUDED */
CPLString
Convenient string class based on std::string.
Definition cpl_string.h:320
GDALColorTable
A color table / palette.
Definition gdal_priv.h:1312
GDALDefaultRasterAttributeTable
Raster Attribute Table container.
Definition gdal_rat.h:346
GDALRasterAttributeTable
The GDALRasterAttributeTable (or RAT) class is used to encapsulate a table used to provide attribute ...
Definition gdal_rat.h:48
GDALRasterAttributeTable::SetValue
virtual void SetValue(int iRow, int iField, const char *pszValue)=0
Set field value from string.
GDALRasterAttributeTable::GetValueAsString
virtual const char * GetValueAsString(int iRow, int iField) const =0
Fetch field value as a string.
GDALRasterAttributeTable::GetValueAsDouble
virtual double GetValueAsDouble(int iRow, int iField) const =0
Fetch field value as a double.
GDALRasterAttributeTable::ToHandle
static GDALRasterAttributeTableH ToHandle(GDALRasterAttributeTable *poRAT)
Convert a GDALRasterAttributeTable* to a GDALRasterAttributeTableH.
Definition gdal_rat.h:295
GDALRasterAttributeTable::RemoveStatistics
virtual void RemoveStatistics()=0
Remove statistics from the RAT.
GDALRasterAttributeTable::GetRowCount
virtual int GetRowCount() const =0
Fetch row count.
GDALRasterAttributeTable::ChangesAreWrittenToFile
virtual int ChangesAreWrittenToFile()=0
Determine whether changes made to this RAT are reflected directly in the dataset.
GDALRasterAttributeTable::SetTableType
virtual CPLErr SetTableType(const GDALRATTableType eInTableType)=0
Set the RAT table type.
GDALRasterAttributeTable::FromHandle
static GDALRasterAttributeTable * FromHandle(GDALRasterAttributeTableH hRAT)
Convert a GDALRasterAttributeTableH to a GDALRasterAttributeTable*.
Definition gdal_rat.h:304
GDALRasterAttributeTable::GetColumnCount
virtual int GetColumnCount() const =0
Fetch table column count.
GDALRasterAttributeTable::GetUsageOfCol
virtual GDALRATFieldUsage GetUsageOfCol(int iCol) const =0
Fetch column usage value.
GDALRasterAttributeTable::SetValue
virtual void SetValue(int iRow, int iField, int nValue)=0
Set field value from integer.
GDALRasterAttributeTable::Clone
virtual GDALRasterAttributeTable * Clone() const =0
Copy Raster Attribute Table.
GDALRasterAttributeTable::GetTableType
virtual GDALRATTableType GetTableType() const =0
Get the RAT table type.
GDALRasterAttributeTable::SetValue
virtual void SetValue(int iRow, int iField, double dfValue)=0
Set field value from double.
GDALRasterAttributeTable::GetNameOfCol
virtual const char * GetNameOfCol(int iCol) const =0
Fetch name of indicated column.
GDALRasterAttributeTable::GetValueAsInt
virtual int GetValueAsInt(int iRow, int iField) const =0
Fetch field value as a integer.
GDALRasterAttributeTable::GetColOfUsage
virtual int GetColOfUsage(GDALRATFieldUsage eUsage) const =0
Fetch column index for given usage.
GDALRasterAttributeTable::GetTypeOfCol
virtual GDALRATFieldType GetTypeOfCol(int iCol) const =0
Fetch column type.
CPLErr
CPLErr
Error category.
Definition cpl_error.h:53
cpl_minixml.h
Definitions for CPL mini XML Parser/Serializer.
GDALRATTableType
GDALRATTableType
RAT table type (thematic or athematic)
Definition gdal.h:2030
GDALRATFieldUsage
GDALRATFieldUsage
Field usage of raster attribute table.
Definition gdal.h:2004
GFU_Generic
@ GFU_Generic
Definition gdal.h:2005
GDALRATFieldType
GDALRATFieldType
Field type of raster attribute table.
Definition gdal.h:1996
GFT_Integer
@ GFT_Integer
Definition gdal.h:1997
GDALRasterAttributeTableH
void * GDALRasterAttributeTableH
Opaque type used for the C bindings of the C++ GDALRasterAttributeTable class.
Definition gdal.h:304
GDALRWFlag
GDALRWFlag
Definition gdal.h:132
gdal_priv.h
C++ GDAL entry points.
CPLXMLNode
Document node structure.
Definition cpl_minixml.h:71