QGIS/external/mdal/mdal_utils.hpp
2019-01-24 16:24:46 +01:00

115 lines
3.8 KiB
C++

/*
MDAL - Mesh Data Abstraction Library (MIT License)
Copyright (C) 2018 Peter Petrik (zilolv at gmail dot com)
*/
#ifndef MDAL_UTILS_HPP
#define MDAL_UTILS_HPP
// Macro for exporting symbols
// for unit tests (on windows)
#define MDAL_TEST_EXPORT MDAL_EXPORT
#include <string>
#include <vector>
#include <stddef.h>
#include <limits>
#include "mdal_data_model.hpp"
#include "mdal_memory_data_model.hpp"
// avoid unused variable warnings
#define MDAL_UNUSED(x) (void)x;
#define MDAL_NAN std::numeric_limits<double>::quiet_NaN()
namespace MDAL
{
// numbers
bool equals( double val1, double val2, double eps = std::numeric_limits<double>::epsilon() );
//! returns quiet_NaN if value equals nodata value, otherwise returns val itself
double safeValue( double val, double nodata, double eps = std::numeric_limits<double>::epsilon() );
// debugging
void debug( const std::string &message );
/** Return whether file exists */
bool fileExists( const std::string &filename );
std::string baseName( const std::string &filename );
std::string dirName( const std::string &filename );
std::string pathJoin( const std::string &path1, const std::string &path2 );
// strings
enum ContainsBehaviour
{
CaseSensitive,
CaseInsensitive
};
bool startsWith( const std::string &str, const std::string &substr, ContainsBehaviour behaviour = CaseSensitive );
bool endsWith( const std::string &str, const std::string &substr, ContainsBehaviour behaviour = CaseSensitive );
bool contains( const std::string &str, const std::string &substr, ContainsBehaviour behaviour = CaseSensitive );
bool contains( const std::vector<std::string> &list, const std::string &str );
std::string replace( const std::string &str, const std::string &substr, const std::string &replacestr, ContainsBehaviour behaviour = CaseSensitive );
//! left justify and truncate, resulting string will always have width chars
std::string leftJustified( const std::string &str, size_t width, char fill = ' ' );
std::string toLower( const std::string &std );
/** Return 0 if not possible to convert */
size_t toSizeT( const std::string &str );
int toInt( const std::string &str );
double toDouble( const std::string &str );
bool toBool( const std::string &str );
bool isNumber( const std::string &str );
/**
* Splits by deliminer and skips empty parts.
* Faster than version with std::string
*/
MDAL_TEST_EXPORT std::vector<std::string> split( const std::string &str, const char delimiter );
//! Splits by deliminer and skips empty parts
MDAL_TEST_EXPORT std::vector<std::string> split( const std::string &str, const std::string &delimiter );
std::string join( const std::vector<std::string> parts, const std::string &delimiter );
//! Right trim
std::string rtrim(
const std::string &s,
const std::string &delimiters = " \f\n\r\t\v" );
//! Left trim
std::string ltrim(
const std::string &s,
const std::string &delimiters = " \f\n\r\t\v" );
//! Right and left trim
std::string trim(
const std::string &s,
const std::string &delimiters = " \f\n\r\t\v" );
// extent
BBox computeExtent( const Vertices &vertices );
// time
//! Returns a delimiter to get time in hours
MDAL_TEST_EXPORT double parseTimeUnits( const std::string &units );
// statistics
void combineStatistics( Statistics &main, const Statistics &other );
//! Calculates statistics for dataset group
Statistics calculateStatistics( std::shared_ptr<DatasetGroup> grp );
Statistics calculateStatistics( DatasetGroup *grp );
//! Calculates statistics for dataset
Statistics calculateStatistics( std::shared_ptr<Dataset> dataset );
// mesh & datasets
//! Add bed elevatiom dataset group to mesh
void addBedElevationDatasetGroup( MDAL::Mesh *mesh, const Vertices &vertices );
} // namespace MDAL
#endif //MDAL_UTILS_HPP