Zen

Source string Source string

176/10000 · 176

The string is read only.

English Actions
Returns a list of raster formats supported by PostGIS through GDAL. Only those formats with can_write=True can be used by ST_AsGDALRaster
Returns a list of raster formats short_name,long_name and creator options of each format supported by GDAL. Use the short_name as input in the <varname>format</varname> parameter of <xref linkend="RT_ST_AsGDALRaster"/>. Options vary depending on what drivers your libgdal was compiled with. <varname>create_options</varname> returns an xml formatted set of CreationOptionList/Option consisting of name and optional <varname>type</varname>, <varname>description</varname> and set of <varname>VALUE</varname> for each creator option for the specific driver.
Changed: 2.5.0 - add can_read and can_write columns.
Changed: 2.0.6, 2.1.3 - by default no drivers are enabled, unless GUC or Environment variable gdal_enabled_drivers is set.
Availability: 2.0.0 - requires GDAL &gt;= 1.6.0.
Examples: List of Drivers
Example: List of options for each driver
, <xref linkend="ST_SRID"/>, <xref linkend="postgis_gdal_enabled_drivers"/>
<refpurpose>Generates a set of vector contours from the provided raster band, using the <link xlink:href="https://gdal.org/api/gdal_alg.html?highlight=contour#_CPPv421GDALContourGenerateEx15GDALRasterBandHPv12CSLConstList16GDALProgressFuncPv">GDAL contouring algorithm</link>.</refpurpose>
<para>Generates a set of vector contours from the provided raster band, using the <link xlink:href="https://gdal.org/api/gdal_alg.html?highlight=contour#_CPPv421GDALContourGenerateEx15GDALRasterBandHPv12CSLConstList16GDALProgressFuncPv">GDAL contouring algorithm</link>.</para>
When the <varname>fixed_levels</varname> parameter is a non-empty array, the <varname>level_interval</varname> and <varname>level_base</varname> parameters are ignored.
Input parameters are:
The raster to generate the contour of
The band to generate the contour of
The elevation interval between contours generated
The "base" relative to which contour intervals are applied, this is normally zero, but could be different. To generate 10m contours at 5, 15, 25, ... the LEVEL_BASE would be 5.
If <literal>true</literal>, contour polygons will be created, rather than polygon lines.
Return values are a set of records with the following attributes:
The geometry of the contour line.
A unique identifier given to the contour line by GDAL.
The raster value the line represents. For an elevation DEM input, this would be the elevation of the output contour.
Interpolates a gridded surface based on an input set of 3-d points, using the X- and Y-values to position the points on the grid and the Z-value of the points as the surface elevation.
Interpolates a gridded surface based on an input set of 3-d points, using the X- and Y-values to position the points on the grid and the Z-value of the points as the surface elevation. There are five interpolation algorithms available: inverse distance, inverse distance nearest-neighbor, moving average, nearest neighbor, and linear interpolation. See the <link xlink:href="https://gdal.org/programs/gdal_grid.html#interpolation-algorithms">gdal_grid documentation</link> for more details on the algorithms and their parameters. For more information on how interpolations are calculated, see the <link xlink:href="https://gdal.org/tutorials/gdal_grid_tut.html">GDAL grid tutorial</link>.
The points to drive the interpolation. Any geometry with Z-values is acceptable, all points in the input will be used.
A string defining the algorithm and algorithm options, in the format used by <link xlink:href="https://gdal.org/programs/gdal_grid.html#interpolation-algorithms">gdal_grid</link>. For example, for an inverse-distance interpolation with a smoothing of 2, you would use "invdist:smoothing=2.0"
A raster template to drive the geometry of the output raster. The width, height, pixel size, spatial extent and pixel type will be read from this template.
By default the first band in the template raster is used to drive the output raster, but that can be adjusted with this parameter.
Change the SRID of all rasters in the user-specified column and table.
Change the SRID of all rasters in the user-specified column and table. The function will drop all appropriate column constraints (extent, alignment and SRID) before changing the SRID of the specified column's rasters.
The data (band pixel values) of the rasters are not touched by this function. Only the raster's metadata is changed.
Create an reduced resolution version of a given raster coverage.

Loading…

User avatar None

String updated in the repository

  1. postgis
  2. PostGIS Manual
  3. English
The "base" relative to which contour intervals are applied, this is normally zero, but could be different. To generate 10m contours at 5, 15, 25, ... the LEVEL_BASE would be 5.
The "base" relative to which contour intervals are applied, this is normally zero, but could be different. To generate 10m contours at 5, 15, 25, ... the LEVEL_BASE would be 5.
a year ago
Browse all string changes

Things to check

Ellipsis

The string uses three dots (...) instead of an ellipsis character (…)

Reset

Glossary

English English
No related strings found in the glossary.

String information

Source string description
Tag: para
Flags
no-c-format, read-only
String age
a year ago
Last updated
a year ago
Source string age
a year ago
Translation file
doc/po/templates/postgis-manual.pot, string 3485