librtcore.h File Reference
This library is the generic raster handling section of PostGIS. More...
#include <stdio.h>#include <stdlib.h>#include <stdint.h>#include <string.h>#include <float.h>#include <limits.h>#include "liblwgeom.h"#include "gdal_alg.h"#include "gdal_frmts.h"#include "gdal.h"#include "gdalwarper.h"#include "cpl_vsi.h"#include "cpl_conv.h"#include "ogr_api.h"#include "ogr_srs_api.h"#include "../../postgis_config.h"#include "../raster_config.h"
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Data Structures | |
| struct | rt_envelope |
| struct | rt_raster_serialized_t |
| Struct definitions. More... | |
| struct | rt_raster_t |
| struct | rt_extband_t |
| struct | rt_band_t |
| struct | rt_pixel_t |
| struct | rt_mask_t |
| struct | rt_geomval_t |
| struct | rt_bandstats_t |
| struct | rt_histogram_t |
| struct | rt_quantile_t |
| struct | quantile_llist |
| struct | quantile_llist_element |
| struct | quantile_llist_index |
| struct | rt_valuecount_t |
| struct | rt_reclassexpr_t |
| struct | rt_reclassexpr_t::rt_reclassrange |
| struct | rt_iterator_t |
| struct | rt_iterator_arg_t |
| struct | rt_gdaldriver_t |
| struct | rt_colormap_entry_t |
| struct | rt_colormap_t |
Macros | |
| #define | __attribute__ (x) |
| #define | RASTER_DEBUG(level, msg) ((void) 0) |
| #define | RASTER_DEBUGF(level, msg, ...) ((void) 0) |
| #define | GDAL_ENABLE_ALL "ENABLE_ALL" |
| #define | GDAL_DISABLE_ALL "DISABLE_ALL" |
| #define | GDAL_VSICURL "VSICURL" |
| #define | POSTGIS_RASTER_WARN_ON_TRUNCATION 0 |
| #define | POSTGIS_RT_1BBMAX 1 |
| #define | POSTGIS_RT_2BUIMAX 3 |
| #define | POSTGIS_RT_4BUIMAX 15 |
| #define | FLT_NEQ(x, y) (fabs(x - y) > FLT_EPSILON) |
| #define | FLT_EQ(x, y) (!FLT_NEQ(x, y)) |
| #define | DBL_NEQ(x, y) (fabs(x - y) > DBL_EPSILON) |
| #define | DBL_EQ(x, y) (!DBL_NEQ(x, y)) |
| #define | ROUND(x, y) (((x > 0.0) ? floor((x * pow(10, y) + 0.5)) : ceil((x * pow(10, y) - 0.5))) / pow(10, y)) |
Typedefs | |
| typedef struct rt_raster_t * | rt_raster |
| Types definitions. More... | |
| typedef struct rt_band_t * | rt_band |
| typedef struct rt_pixel_t * | rt_pixel |
| typedef struct rt_mask_t * | rt_mask |
| typedef struct rt_geomval_t * | rt_geomval |
| typedef struct rt_bandstats_t * | rt_bandstats |
| typedef struct rt_histogram_t * | rt_histogram |
| typedef struct rt_quantile_t * | rt_quantile |
| typedef struct rt_valuecount_t * | rt_valuecount |
| typedef struct rt_gdaldriver_t * | rt_gdaldriver |
| typedef struct rt_reclassexpr_t * | rt_reclassexpr |
| typedef struct rt_iterator_t * | rt_iterator |
| typedef struct rt_iterator_arg_t * | rt_iterator_arg |
| typedef struct rt_colormap_entry_t * | rt_colormap_entry |
| typedef struct rt_colormap_t * | rt_colormap |
| typedef void *(* | rt_allocator) (size_t size) |
| Global functions for memory/logging handlers. More... | |
| typedef void *(* | rt_reallocator) (void *mem, size_t size) |
| typedef void(* | rt_deallocator) (void *mem) |
| typedef void(* | rt_message_handler) (const char *string, va_list ap) __attribute__((format(printf |
| typedef void(*) voi | rt_install_default_allocators) (void) |
| Apply the default memory management (malloc() and free()) and error handlers. More... | |
Enumerations | |
| enum | rt_errorstate { ES_NONE = 0, ES_ERROR = 1 } |
| Enum definitions. More... | |
| enum | rt_pixtype { PT_1BB =0, PT_2BUI =1, PT_4BUI =2, PT_8BSI =3, PT_8BUI =4, PT_16BSI =5, PT_16BUI =6, PT_32BSI =7, PT_32BUI =8, PT_32BF =10, PT_64BF =11, PT_END =13 } |
| enum | rt_extenttype { ET_INTERSECTION = 0, ET_UNION, ET_FIRST, ET_SECOND, ET_LAST, ET_CUSTOM } |
| enum | rt_geos_spatial_test { GSR_OVERLAPS = 0, GSR_TOUCHES, GSR_CONTAINS, GSR_CONTAINSPROPERLY, GSR_COVERS, GSR_COVEREDBY } |
| GEOS spatial relationship tests available. More... | |
Functions | |
| void * | rtalloc (size_t size) |
| Wrappers used for managing memory. More... | |
| void * | rtrealloc (void *mem, size_t size) |
| void | rtdealloc (void *mem) |
| void | rterror (const char *fmt,...) |
| Wrappers used for reporting errors and info. More... | |
| void | rtinfo (const char *fmt,...) |
| void | rtwarn (const char *fmt,...) |
| void * | default_rt_allocator (size_t size) |
| The default memory/logging handlers installed by lwgeom_install_default_allocators() More... | |
| void * | default_rt_reallocator (void *mem, size_t size) |
| void | default_rt_deallocator (void *mem) |
| void | default_rt_error_handler (const char *fmt, va_list ap) |
| void | default_rt_warning_handler (const char *fmt, va_list ap) |
| void | default_rt_info_handler (const char *fmt, va_list ap) |
| void | rt_set_handlers (rt_allocator allocator, rt_reallocator reallocator, rt_deallocator deallocator, rt_message_handler error_handler, rt_message_handler info_handler, rt_message_handler warning_handler) |
| This function is called when the PostgreSQL backend is taking care of the memory and we want to use palloc family. More... | |
| int | rt_pixtype_size (rt_pixtype pixtype) |
| Return size in bytes of a value in the given pixtype. More... | |
| int | rt_pixtype_alignment (rt_pixtype pixtype) |
| Return alignment requirements for data in the given pixel type. More... | |
| const char * | rt_pixtype_name (rt_pixtype pixtype) |
| rt_pixtype | rt_pixtype_index_from_name (const char *pixname) |
| double | rt_pixtype_get_min_value (rt_pixtype pixtype) |
| Return minimum value possible for pixel type. More... | |
| rt_errorstate | rt_pixtype_compare_clamped_values (rt_pixtype pixtype, double val, double refval, int *isequal) |
| Test to see if two values are equal when clamped. More... | |
| rt_errorstate | rt_pixel_set_to_array (rt_pixel npixel, int count, rt_mask mask, int x, int y, uint16_t distancex, uint16_t distancey, double ***value, int ***nodata, int *dimx, int *dimy) |
| rt_band | rt_band_new_inline (uint16_t width, uint16_t height, rt_pixtype pixtype, uint32_t hasnodata, double nodataval, uint8_t *data) |
| Create an in-db rt_band with no data. More... | |
| rt_band | rt_band_new_offline (uint16_t width, uint16_t height, rt_pixtype pixtype, uint32_t hasnodata, double nodataval, uint8_t bandNum, const char *path) |
| Create an out-db rt_band. More... | |
| rt_band | rt_band_duplicate (rt_band band) |
| Create a new band duplicated from source band. More... | |
| int | rt_band_is_offline (rt_band band) |
| Return non-zero if the given band data is on the filesystem. More... | |
| const char * | rt_band_get_ext_path (rt_band band) |
| Return band's external path (only valid when rt_band_is_offline returns non-zero). More... | |
| rt_errorstate | rt_band_get_ext_band_num (rt_band band, uint8_t *bandnum) |
| Return bands' external band number (only valid when rt_band_is_offline returns non-zero). More... | |
| rt_pixtype | rt_band_get_pixtype (rt_band band) |
| Return pixeltype of this band. More... | |
| uint16_t | rt_band_get_width (rt_band band) |
| Return width of this band. More... | |
| uint16_t | rt_band_get_height (rt_band band) |
| Return height of this band. More... | |
| int | rt_band_get_ownsdata_flag (rt_band band) |
| Return 0 (FALSE) or non-zero (TRUE) indicating if rt_band is responsible for managing the memory for band data. More... | |
| void | rt_band_set_ownsdata_flag (rt_band band, int flag) |
| void * | rt_band_get_data (rt_band band) |
| Get pointer to raster band data. More... | |
| rt_errorstate | rt_band_load_offline_data (rt_band band) |
| Load offline band's data. More... | |
| void | rt_band_destroy (rt_band band) |
| Destroy a raster band. More... | |
| int | rt_band_get_hasnodata_flag (rt_band band) |
| Get hasnodata flag value. More... | |
| void | rt_band_set_hasnodata_flag (rt_band band, int flag) |
| Set hasnodata flag value. More... | |
| rt_errorstate | rt_band_set_isnodata_flag (rt_band band, int flag) |
| Set isnodata flag value. More... | |
| int | rt_band_get_isnodata_flag (rt_band band) |
| Get isnodata flag value. More... | |
| rt_errorstate | rt_band_set_nodata (rt_band band, double val, int *converted) |
| Set nodata value. More... | |
| rt_errorstate | rt_band_get_nodata (rt_band band, double *nodata) |
| Get NODATA value. More... | |
| rt_errorstate | rt_band_set_pixel_line (rt_band band, int x, int y, void *vals, uint32_t len) |
| Set values of multiple pixels. More... | |
| rt_errorstate | rt_band_set_pixel (rt_band band, int x, int y, double val, int *converted) |
| Set single pixel's value. More... | |
| rt_errorstate | rt_band_get_pixel_line (rt_band band, int x, int y, uint16_t len, void **vals, uint16_t *nvals) |
| Get values of multiple pixels. More... | |
| rt_errorstate | rt_band_get_pixel (rt_band band, int x, int y, double *value, int *nodata) |
| Get pixel value. More... | |
| int | rt_band_get_nearest_pixel (rt_band band, int x, int y, uint16_t distancex, uint16_t distancey, int exclude_nodata_value, rt_pixel *npixels) |
| Get nearest pixel(s) with value (not NODATA) to specified pixel. More... | |
| int | rt_band_get_pixel_of_value (rt_band band, int exclude_nodata_value, double *searchset, int searchcount, rt_pixel *pixels) |
| Search band for pixel(s) with search values. More... | |
| double | rt_band_get_min_value (rt_band band) |
| Returns the minimal possible value for the band according to the pixel type. More... | |
| int | rt_band_check_is_nodata (rt_band band) |
| Returns TRUE if the band is only nodata values. More... | |
| int | rt_band_clamped_value_is_nodata (rt_band band, double val) |
| Compare clamped value to band's clamped NODATA value. More... | |
| rt_errorstate | rt_band_corrected_clamped_value (rt_band band, double val, double *newval, int *corrected) |
| Correct value when clamped value is equal to clamped NODATA value. More... | |
| rt_bandstats | rt_band_get_summary_stats (rt_band band, int exclude_nodata_value, double sample, int inc_vals, uint64_t *cK, double *cM, double *cQ) |
| Compute summary statistics for a band. More... | |
| rt_histogram | rt_band_get_histogram (rt_bandstats stats, int bin_count, double *bin_widths, int bin_widths_count, int right, double min, double max, uint32_t *rtn_count) |
| Count the distribution of data. More... | |
| rt_quantile | rt_band_get_quantiles (rt_bandstats stats, double *quantiles, int quantiles_count, uint32_t *rtn_count) |
| Compute the default set of or requested quantiles for a set of data the quantile formula used is same as Excel and R default method. More... | |
| int | quantile_llist_destroy (struct quantile_llist **list, uint32_t list_count) |
| rt_quantile | rt_band_get_quantiles_stream (rt_band band, int exclude_nodata_value, double sample, uint64_t cov_count, struct quantile_llist **qlls, uint32_t *qlls_count, double *quantiles, int quantiles_count, uint32_t *rtn_count) |
| Compute the default set of or requested quantiles for a coverage. More... | |
| rt_valuecount | rt_band_get_value_count (rt_band band, int exclude_nodata_value, double *search_values, uint32_t search_values_count, double roundto, uint32_t *rtn_total, uint32_t *rtn_count) |
| Count the number of times provided value(s) occur in the band. More... | |
| rt_band | rt_band_reclass (rt_band srcband, rt_pixtype pixtype, uint32_t hasnodata, double nodataval, rt_reclassexpr *exprset, int exprcount) |
| Returns new band with values reclassified. More... | |
| rt_raster | rt_raster_new (uint32_t width, uint32_t height) |
| Construct a raster with given dimensions. More... | |
| rt_raster | rt_raster_from_wkb (const uint8_t *wkb, uint32_t wkbsize) |
| Construct an rt_raster from a binary WKB representation. More... | |
| rt_raster | rt_raster_from_hexwkb (const char *hexwkb, uint32_t hexwkbsize) |
| Construct an rt_raster from a text HEXWKB representation. More... | |
| uint8_t * | rt_raster_to_wkb (rt_raster raster, int outasin, uint32_t *wkbsize) |
| Return this raster in WKB form. More... | |
| char * | rt_raster_to_hexwkb (rt_raster raster, int outasin, uint32_t *hexwkbsize) |
| Return this raster in HEXWKB form (null-terminated hex) More... | |
| void | rt_raster_destroy (rt_raster raster) |
| Release memory associated to a raster. More... | |
| int | rt_raster_get_num_bands (rt_raster raster) |
| rt_band | rt_raster_get_band (rt_raster raster, int bandNum) |
| Return Nth band, or NULL if unavailable. More... | |
| uint16_t | rt_raster_get_width (rt_raster raster) |
| uint16_t | rt_raster_get_height (rt_raster raster) |
| int | rt_raster_add_band (rt_raster raster, rt_band band, int index) |
| Add band data to a raster. More... | |
| int | rt_raster_generate_new_band (rt_raster raster, rt_pixtype pixtype, double initialvalue, uint32_t hasnodata, double nodatavalue, int index) |
| Generate a new inline band and add it to a raster. More... | |
| void | rt_raster_set_scale (rt_raster raster, double scaleX, double scaleY) |
| Set scale in projection units. More... | |
| double | rt_raster_get_x_scale (rt_raster raster) |
| Get scale X in projection units. More... | |
| double | rt_raster_get_y_scale (rt_raster raster) |
| Get scale Y in projection units. More... | |
| void | rt_raster_set_offsets (rt_raster raster, double x, double y) |
| Set insertion points in projection units. More... | |
| double | rt_raster_get_x_offset (rt_raster raster) |
| Get raster x offset, in projection units. More... | |
| double | rt_raster_get_y_offset (rt_raster raster) |
| Get raster y offset, in projection units. More... | |
| void | rt_raster_set_skews (rt_raster raster, double skewX, double skewY) |
| Set skews about the X and Y axis. More... | |
| double | rt_raster_get_x_skew (rt_raster raster) |
| Get skew about the X axis. More... | |
| double | rt_raster_get_y_skew (rt_raster raster) |
| Get skew about the Y axis. More... | |
| void | rt_raster_get_phys_params (rt_raster rast, double *i_mag, double *j_mag, double *theta_i, double *theta_ij) |
| Calculates and returns the physically significant descriptors embodied in the geotransform attached to the provided raster. More... | |
| void | rt_raster_set_phys_params (rt_raster rast, double i_mag, double j_mag, double theta_i, double theta_ij) |
| Calculates the geotransform coefficients and applies them to the supplied raster. More... | |
| void | rt_raster_calc_phys_params (double xscale, double xskew, double yskew, double yscale, double *i_mag, double *j_mag, double *theta_i, double *theta_ij) |
| Calculates the physically significant descriptors embodied in an arbitrary geotransform. More... | |
| int | rt_raster_calc_gt_coeff (double i_mag, double j_mag, double theta_i, double theta_ij, double *xscale, double *xskew, double *yskew, double *yscale) |
| Calculates the coefficients of a geotransform given the physically significant parameters describing the transform. More... | |
| void | rt_raster_set_srid (rt_raster raster, int32_t srid) |
| Set raster's SRID. More... | |
| int32_t | rt_raster_get_srid (rt_raster raster) |
| Get raster's SRID. More... | |
| rt_errorstate | rt_raster_get_inverse_geotransform_matrix (rt_raster raster, double *gt, double *igt) |
| Get 6-element array of raster inverse geotransform matrix. More... | |
| void | rt_raster_get_geotransform_matrix (rt_raster raster, double *gt) |
| Get 6-element array of raster geotransform matrix. More... | |
| void | rt_raster_set_geotransform_matrix (rt_raster raster, double *gt) |
| Set raster's geotransform using 6-element array. More... | |
| rt_errorstate | rt_raster_cell_to_geopoint (rt_raster raster, double xr, double yr, double *xw, double *yw, double *gt) |
| Convert an xr, yr raster point to an xw, yw point on map. More... | |
| rt_errorstate | rt_raster_geopoint_to_cell (rt_raster raster, double xw, double yw, double *xr, double *yr, double *igt) |
| Convert an xw, yw map point to a xr, yr raster point. More... | |
| rt_errorstate | rt_raster_get_convex_hull (rt_raster raster, LWGEOM **hull) |
| Get raster's convex hull. More... | |
| rt_errorstate | rt_raster_get_envelope (rt_raster raster, rt_envelope *env) |
| Get raster's envelope. More... | |
| rt_errorstate | rt_raster_get_envelope_geom (rt_raster raster, LWGEOM **env) |
| Get raster's envelope as a geometry. More... | |
| rt_errorstate | rt_raster_get_perimeter (rt_raster raster, int nband, LWGEOM **perimeter) |
| Get raster perimeter. More... | |
| rt_raster | rt_raster_compute_skewed_raster (rt_envelope extent, double *skew, double *scale, double tolerance) |
| LWPOLY * | rt_raster_pixel_as_polygon (rt_raster raster, int x, int y) |
| Get a raster pixel as a polygon. More... | |
| rt_errorstate | rt_raster_surface (rt_raster raster, int nband, LWMPOLY **surface) |
| Get a raster as a surface (multipolygon). More... | |
| rt_geomval | rt_raster_gdal_polygonize (rt_raster raster, int nband, int exclude_nodata_value, int *pnElements) |
| Returns a set of "geomval" value, one for each group of pixel sharing the same value for the provided band. More... | |
| void * | rt_raster_serialize (rt_raster raster) |
| Return this raster in serialized form. More... | |
| rt_raster | rt_raster_deserialize (void *serialized, int header_only) |
| Return a raster from a serialized form. More... | |
| int | rt_raster_is_empty (rt_raster raster) |
| Return TRUE if the raster is empty. More... | |
| int | rt_raster_has_band (rt_raster raster, int nband) |
| Return TRUE if the raster has a band of this number. More... | |
| int | rt_raster_copy_band (rt_raster torast, rt_raster fromrast, int fromindex, int toindex) |
| Copy one band from one raster to another. More... | |
| rt_raster | rt_raster_from_band (rt_raster raster, uint32_t *bandNums, int count) |
| Construct a new rt_raster from an existing rt_raster and an array of band numbers. More... | |
| rt_band | rt_raster_replace_band (rt_raster raster, rt_band band, int index) |
| Replace band at provided index with new band. More... | |
| rt_raster | rt_raster_clone (rt_raster raster, uint8_t deep) |
| Clone an existing raster. More... | |
| uint8_t * | rt_raster_to_gdal (rt_raster raster, const char *srs, char *format, char **options, uint64_t *gdalsize) |
| Return formatted GDAL raster from raster. More... | |
| rt_gdaldriver | rt_raster_gdal_drivers (uint32_t *drv_count, uint8_t cancc) |
| Returns a set of available GDAL drivers. More... | |
| GDALDatasetH | rt_raster_to_gdal_mem (rt_raster raster, const char *srs, uint32_t *bandNums, int *excludeNodataValues, int count, GDALDriverH *rtn_drv, int *destroy_rtn_drv) |
| Return GDAL dataset using GDAL MEM driver from raster. More... | |
| rt_raster | rt_raster_from_gdal_dataset (GDALDatasetH ds) |
| Return a raster from a GDAL dataset. More... | |
| rt_raster | rt_raster_gdal_warp (rt_raster raster, const char *src_srs, const char *dst_srs, double *scale_x, double *scale_y, int *width, int *height, double *ul_xw, double *ul_yw, double *grid_xw, double *grid_yw, double *skew_x, double *skew_y, GDALResampleAlg resample_alg, double max_err) |
| Return a warped raster using GDAL Warp API. More... | |
| rt_raster | rt_raster_gdal_rasterize (const unsigned char *wkb, uint32_t wkb_len, const char *srs, uint32_t num_bands, rt_pixtype *pixtype, double *init, double *value, double *nodata, uint8_t *hasnodata, int *width, int *height, double *scale_x, double *scale_y, double *ul_xw, double *ul_yw, double *grid_xw, double *grid_yw, double *skew_x, double *skew_y, char **options) |
| Return a raster of the provided geometry. More... | |
| rt_errorstate | rt_raster_intersects (rt_raster rast1, int nband1, rt_raster rast2, int nband2, int *intersects) |
| Return ES_ERROR if error occurred in function. More... | |
| rt_errorstate | rt_raster_overlaps (rt_raster rast1, int nband1, rt_raster rast2, int nband2, int *overlaps) |
| Return ES_ERROR if error occurred in function. More... | |
| rt_errorstate | rt_raster_contains (rt_raster rast1, int nband1, rt_raster rast2, int nband2, int *contains) |
| Return ES_ERROR if error occurred in function. More... | |
| rt_errorstate | rt_raster_contains_properly (rt_raster rast1, int nband1, rt_raster rast2, int nband2, int *contains) |
| Return ES_ERROR if error occurred in function. More... | |
| rt_errorstate | rt_raster_touches (rt_raster rast1, int nband1, rt_raster rast2, int nband2, int *touches) |
| Return ES_ERROR if error occurred in function. More... | |
| rt_errorstate | rt_raster_covers (rt_raster rast1, int nband1, rt_raster rast2, int nband2, int *covers) |
| Return ES_ERROR if error occurred in function. More... | |
| rt_errorstate | rt_raster_coveredby (rt_raster rast1, int nband1, rt_raster rast2, int nband2, int *coveredby) |
| Return ES_ERROR if error occurred in function. More... | |
| rt_errorstate | rt_raster_within_distance (rt_raster rast1, int nband1, rt_raster rast2, int nband2, double distance, int *dwithin) |
| Return ES_ERROR if error occurred in function. More... | |
| rt_errorstate | rt_raster_fully_within_distance (rt_raster rast1, int nband1, rt_raster rast2, int nband2, double distance, int *dfwithin) |
| Return ES_ERROR if error occurred in function. More... | |
| rt_errorstate | rt_raster_same_alignment (rt_raster rast1, rt_raster rast2, int *aligned, char **reason) |
| rt_errorstate | rt_raster_from_two_rasters (rt_raster rast1, rt_raster rast2, rt_extenttype extenttype, rt_raster *rtnraster, double *offset) |
| rt_errorstate | rt_raster_iterator (rt_iterator itrset, uint16_t itrcount, rt_extenttype extenttype, rt_raster customextent, rt_pixtype pixtype, uint8_t hasnodata, double nodataval, uint16_t distancex, uint16_t distancey, rt_mask mask, void *userarg, int(*callback)(rt_iterator_arg arg, void *userarg, double *value, int *nodata), rt_raster *rtnraster) |
| n-raster iterator. More... | |
| rt_raster | rt_raster_colormap (rt_raster raster, int nband, rt_colormap colormap) |
| Returns a new raster with up to four 8BUI bands (RGBA) from applying a colormap to the user-specified band of the input raster. More... | |
| uint8_t | rt_util_clamp_to_1BB (double value) |
| uint8_t | rt_util_clamp_to_2BUI (double value) |
| uint8_t | rt_util_clamp_to_4BUI (double value) |
| int8_t | rt_util_clamp_to_8BSI (double value) |
| uint8_t | rt_util_clamp_to_8BUI (double value) |
| int16_t | rt_util_clamp_to_16BSI (double value) |
| uint16_t | rt_util_clamp_to_16BUI (double value) |
| int32_t | rt_util_clamp_to_32BSI (double value) |
| uint32_t | rt_util_clamp_to_32BUI (double value) |
| float | rt_util_clamp_to_32F (double value) |
| int | rt_util_dbl_trunc_warning (double initialvalue, int32_t checkvalint, uint32_t checkvaluint, float checkvalfloat, double checkvaldouble, rt_pixtype pixtype) |
| GDALResampleAlg | rt_util_gdal_resample_alg (const char *algname) |
| Convert cstring name to GDAL Resample Algorithm. More... | |
| GDALDataType | rt_util_pixtype_to_gdal_datatype (rt_pixtype pt) |
| Convert rt_pixtype to GDALDataType. More... | |
| rt_pixtype | rt_util_gdal_datatype_to_pixtype (GDALDataType gdt) |
| Convert GDALDataType to rt_pixtype. More... | |
| const char * | rt_util_gdal_version (const char *request) |
| rt_extenttype | rt_util_extent_type (const char *name) |
| char * | rt_util_gdal_convert_sr (const char *srs, int proj4) |
| int | rt_util_gdal_supported_sr (const char *srs) |
| rt_errorstate | rt_util_gdal_sr_auth_info (GDALDatasetH hds, char **authname, char **authcode) |
| Get auth name and code. More... | |
| int | rt_util_gdal_configured (void) |
| int | rt_util_gdal_register_all (int force_register_all) |
| int | rt_util_gdal_driver_registered (const char *drv) |
| GDALDatasetH | rt_util_gdal_open (const char *fn, GDALAccess fn_access, int shared) |
| void | rt_util_from_ogr_envelope (OGREnvelope env, rt_envelope *ext) |
| void | rt_util_to_ogr_envelope (rt_envelope ext, OGREnvelope *env) |
| LWPOLY * | rt_util_envelope_to_lwpoly (rt_envelope ext) |
| int | rt_util_same_geotransform_matrix (double *gt1, double *gt2) |
| rt_errorstate | rt_util_rgb_to_hsv (double rgb[3], double hsv[3]) |
| rt_errorstate | rt_util_hsv_to_rgb (double hsv[3], double rgb[3]) |
Detailed Description
This library is the generic raster handling section of PostGIS.
The raster objects, constructors, destructors, and a set of spatial processing functions are implemented here.
The library is designed for use in non-PostGIS applications if necessary. The units tests at test/core (and the future loader/dumper programs) are examples of non-PostGIS applications using rt_core.
Programs using this library should set up the default memory managers and error handlers by calling rt_set_handlers() function, or rt_install_default_allocators() if you want no special handling for memory management and error reporting.
Definition in file librtcore.h.
