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/******************************************************************************
*
* Project: GDAL DEM Utilities
* Purpose:
* Authors: Even Rouault, <even dot rouault at spatialys dot com>
*
******************************************************************************
* Copyright (c) 2015, Even Rouault <even dot rouault at spatialys dot com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#include "cpl_vsi.h"
#include <stdlib.h>
#include <math.h>
#include "cpl_conv.h"
#include "cpl_string.h"
#include "gdal_version.h"
#include "gdal_utils_priv.h"
#include "gdal_priv.h"
#include "commonutils.h"
/************************************************************************/
/* Usage() */
/************************************************************************/
static void Usage(const char *pszErrorMsg = nullptr)
{
printf(
" Usage: \n"
" - To generate a shaded relief map from any GDAL-supported elevation "
"raster : \n\n"
" gdaldem hillshade input_dem output_hillshade \n"
" [-z ZFactor (default=1)] [-s scale* (default=1)] \n"
" [-az Azimuth (default=315)] [-alt Altitude "
"(default=45)]\n"
" [-alg ZevenbergenThorne] [-combined | "
"-multidirectional | -igor]\n"
" [-compute_edges] [-b Band (default=1)] [-of format] "
"[-co \"NAME=VALUE\"]* [-q]\n"
"\n"
" - To generates a slope map from any GDAL-supported elevation raster "
":\n\n"
" gdaldem slope input_dem output_slope_map \n"
" [-p use percent slope (default=degrees)] [-s scale* "
"(default=1)]\n"
" [-alg ZevenbergenThorne]\n"
" [-compute_edges] [-b Band (default=1)] [-of format] "
"[-co \"NAME=VALUE\"]* [-q]\n"
"\n"
" - To generate an aspect map from any GDAL-supported elevation "
"raster\n"
" Outputs a 32-bit float tiff with pixel values from 0-360 "
"indicating azimuth :\n\n"
" gdaldem aspect input_dem output_aspect_map \n"
" [-trigonometric] [-zero_for_flat]\n"
" [-alg ZevenbergenThorne]\n"
" [-compute_edges] [-b Band (default=1)] [-of format] "
"[-co \"NAME=VALUE\"]* [-q]\n"
"\n"
" - To generate a color relief map from any GDAL-supported elevation "
"raster\n"
" gdaldem color-relief input_dem color_text_file "
"output_color_relief_map\n"
" [-alpha] [-exact_color_entry | "
"-nearest_color_entry]\n"
" [-b Band (default=1)] [-of format] [-co "
"\"NAME=VALUE\"]* [-q]\n"
" where color_text_file contains lines of the format "
"\"elevation_value red green blue\"\n"
"\n"
" - To generate a Terrain Ruggedness Index (TRI) map from any "
"GDAL-supported elevation raster\n"
" gdaldem TRI input_dem output_TRI_map\n"
" [-alg Wilson|Riley]\n"
" [-compute_edges] [-b Band (default=1)] [-of format] "
"[-co \"NAME=VALUE\"]* [-q]\n"
"\n"
" - To generate a Topographic Position Index (TPI) map from any "
"GDAL-supported elevation raster\n"
" gdaldem TPI input_dem output_TPI_map\n"
" [-compute_edges] [-b Band (default=1)] [-of format] "
"[-co \"NAME=VALUE\"]* [-q]\n"
"\n"
" - To generate a roughness map from any GDAL-supported elevation "
"raster\n"
" gdaldem roughness input_dem output_roughness_map\n"
" [-compute_edges] [-b Band (default=1)] [-of format] "
"[-co \"NAME=VALUE\"]* [-q]\n"
"\n"
" Notes : \n"
" Scale is the ratio of vertical units to horizontal\n"
" for Feet:Latlong use scale=370400, for Meters:LatLong use "
"scale=111120 \n\n");
if (pszErrorMsg != nullptr)
fprintf(stderr, "\nFAILURE: %s\n", pszErrorMsg);
exit(1);
}
/************************************************************************/
/* GDALDEMProcessingOptionsForBinaryNew() */
/************************************************************************/
static GDALDEMProcessingOptionsForBinary *
GDALDEMProcessingOptionsForBinaryNew(void)
{
return static_cast<GDALDEMProcessingOptionsForBinary *>(
CPLCalloc(1, sizeof(GDALDEMProcessingOptionsForBinary)));
}
/************************************************************************/
/* GDALDEMProcessingOptionsForBinaryFree() */
/************************************************************************/
static void GDALDEMProcessingOptionsForBinaryFree(
GDALDEMProcessingOptionsForBinary *psOptionsForBinary)
{
if (psOptionsForBinary)
{
CPLFree(psOptionsForBinary->pszProcessing);
CPLFree(psOptionsForBinary->pszSrcFilename);
CPLFree(psOptionsForBinary->pszColorFilename);
CPLFree(psOptionsForBinary->pszDstFilename);
CPLFree(psOptionsForBinary);
}
}
/************************************************************************/
/* main() */
/************************************************************************/
MAIN_START(argc, argv)
{
/* Check strict compilation and runtime library version as we use C++ API */
if (!GDAL_CHECK_VERSION(argv[0]))
exit(1);
EarlySetConfigOptions(argc, argv);
/* -------------------------------------------------------------------- */
/* Register standard GDAL drivers, and process generic GDAL */
/* command options. */
/* -------------------------------------------------------------------- */
GDALAllRegister();
argc = GDALGeneralCmdLineProcessor(argc, &argv, 0);
if (argc < 2)
{
Usage("Not enough arguments.");
}
if (EQUAL(argv[1], "--utility_version") ||
EQUAL(argv[1], "--utility-version"))
{
printf(
"%s was compiled against GDAL %s and is running against GDAL %s\n",
argv[0], GDAL_RELEASE_NAME, GDALVersionInfo("RELEASE_NAME"));
CSLDestroy(argv);
return 0;
}
else if (EQUAL(argv[1], "--help"))
Usage();
GDALDEMProcessingOptionsForBinary *psOptionsForBinary =
GDALDEMProcessingOptionsForBinaryNew();
// coverity[tainted_data]
GDALDEMProcessingOptions *psOptions =
GDALDEMProcessingOptionsNew(argv + 1, psOptionsForBinary);
CSLDestroy(argv);
if (psOptions == nullptr)
{
Usage();
}
if (!(psOptionsForBinary->bQuiet))
{
GDALDEMProcessingOptionsSetProgress(psOptions, GDALTermProgress,
nullptr);
}
if (psOptionsForBinary->pszSrcFilename == nullptr)
{
Usage("Missing source.");
}
if (EQUAL(psOptionsForBinary->pszProcessing, "color-relief") &&
psOptionsForBinary->pszColorFilename == nullptr)
{
Usage("Missing color file.");
}
if (psOptionsForBinary->pszDstFilename == nullptr)
{
Usage("Missing destination.");
}
// Open Dataset and get raster band.
GDALDatasetH hSrcDataset =
GDALOpen(psOptionsForBinary->pszSrcFilename, GA_ReadOnly);
if (hSrcDataset == nullptr)
{
fprintf(stderr, "GDALOpen failed - %d\n%s\n", CPLGetLastErrorNo(),
CPLGetLastErrorMsg());
GDALDestroyDriverManager();
exit(1);
}
int bUsageError = FALSE;
GDALDatasetH hOutDS = GDALDEMProcessing(
psOptionsForBinary->pszDstFilename, hSrcDataset,
psOptionsForBinary->pszProcessing, psOptionsForBinary->pszColorFilename,
psOptions, &bUsageError);
if (bUsageError)
Usage();
const int nRetCode = hOutDS ? 0 : 1;
GDALClose(hSrcDataset);
GDALClose(hOutDS);
GDALDEMProcessingOptionsFree(psOptions);
GDALDEMProcessingOptionsForBinaryFree(psOptionsForBinary);
GDALDestroyDriverManager();
return nRetCode;
}
MAIN_END
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