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Diffstat (limited to 'docs/source/usage/operations/conversions')
6 files changed, 0 insertions, 205 deletions
diff --git a/docs/source/usage/operations/conversions/axisswap.rst b/docs/source/usage/operations/conversions/axisswap.rst deleted file mode 100644 index ddaad075..00000000 --- a/docs/source/usage/operations/conversions/axisswap.rst +++ /dev/null @@ -1,39 +0,0 @@ -.. _axisswap: - -================================================================================ -Axis swap -================================================================================ - -Change the order and sign of 2,3 or 4 axes. - -+--------------+---------------------------------------------------------------+ -| **Options** | -+--------------+---------------------------------------------------------------+ -| `+order` | Ordered comma-separated list of axis, e.g. `+order=2,1,3,4` | -+--------------+---------------------------------------------------------------+ - - -Each of the possible four axes are numbered with 1-4, such that the first input axis -is 1, the second is 2 and so on. The output ordering is controlled by a list of the -input axes re-ordered to the new mapping. - -Examples -################################################################################ - -Reversing the order of the axes:: - - +proj=axisswap +order=4,3,2,1 - -Swapping the first two axes (x and y):: - - +proj=axisswap +order=2,1,3,4 - -The direction, or sign, of an axis can be changed by adding a minus in -front of the axis-number:: - - +proj=axisswap +order=1,-2,3,4 - -It is only necessary to specify the axes that are affected by the swap -operation:: - - +proj=axisswap +order=2,1 diff --git a/docs/source/usage/operations/conversions/cart.rst b/docs/source/usage/operations/conversions/cart.rst deleted file mode 100644 index 0c3c7c23..00000000 --- a/docs/source/usage/operations/conversions/cart.rst +++ /dev/null @@ -1,24 +0,0 @@ -.. _cart: - -================================================================================ -Cartesian to geodetic conversion -================================================================================ - -Convert geodetic coordinates to cartesian coordinates. - -+--------------+--------------------------------------------------------------------+ -| **Options** | -+--------------+--------------------------------------------------------------------+ -| `+ellps` | Ellipsoid of the input coordinates. If used together with the | -| | ellipsoid parameters below, ``+ellps`` is overwritten. | -+--------------+--------------------------------------------------------------------+ -| `+a` | Semi-major radius of ellipsoid axis. | -+--------------+--------------------------------------------------------------------+ -| `+b` | Semi-minor radius of ellipsoid axis. | -+--------------+--------------------------------------------------------------------+ -| `+es` | Eccentricity of ellipsoid. | -+--------------+--------------------------------------------------------------------+ -| `+f` | Flattening of ellipsoid. | -+--------------+--------------------------------------------------------------------+ - - diff --git a/docs/source/usage/operations/conversions/index.rst b/docs/source/usage/operations/conversions/index.rst deleted file mode 100644 index af27e2fd..00000000 --- a/docs/source/usage/operations/conversions/index.rst +++ /dev/null @@ -1,18 +0,0 @@ -.. _conversions_list: - -================================================================================ -Conversions -================================================================================ - -Conversions are coordinate operations in which both coordinate reference systems -are based on the same datum. In PROJ projections are differentiated from -conversions. - -.. toctree:: - :maxdepth: 1 - - axisswap - cart - lonlat - latlon - unitconvert diff --git a/docs/source/usage/operations/conversions/latlon.rst b/docs/source/usage/operations/conversions/latlon.rst deleted file mode 100644 index 6712fa7b..00000000 --- a/docs/source/usage/operations/conversions/latlon.rst +++ /dev/null @@ -1,6 +0,0 @@ -.. _latlon: - -******************************************************************************** -Lat/long (Geodetic alias) -******************************************************************************** - diff --git a/docs/source/usage/operations/conversions/lonlat.rst b/docs/source/usage/operations/conversions/lonlat.rst deleted file mode 100644 index 589cc813..00000000 --- a/docs/source/usage/operations/conversions/lonlat.rst +++ /dev/null @@ -1,6 +0,0 @@ -.. _lonlat: - -******************************************************************************** -Lat/long (Geodetic) -******************************************************************************** - diff --git a/docs/source/usage/operations/conversions/unitconvert.rst b/docs/source/usage/operations/conversions/unitconvert.rst deleted file mode 100644 index 73e517bd..00000000 --- a/docs/source/usage/operations/conversions/unitconvert.rst +++ /dev/null @@ -1,112 +0,0 @@ -.. _unitconvert: - -================================================================================ -Unit conversion -================================================================================ - -Convert between various distance and time units. - -+--------------+--------------------------------------------------------------------+ -| **Options** | -+--------------+--------------------------------------------------------------------+ -| `+xy_in` | Input unit of the horizontal components. | -+--------------+--------------------------------------------------------------------+ -| `+xy_out` | Output unit of the horizontal components. | -+--------------+--------------------------------------------------------------------+ -| `+z_in` | Input unit of the vertical component. | -+--------------+--------------------------------------------------------------------+ -| `+z_out` | Output unit of the vertical component. | -+--------------+--------------------------------------------------------------------+ -| `+t_in` | Input unit of the time component. | -+--------------+--------------------------------------------------------------------+ -| `+t_out` | Output unit of the time component. | -+--------------+--------------------------------------------------------------------+ - -There are many examples of coordinate reference systems that are expressed in -other units than the meter. There are also many cases where temporal data -has to be translated to different units. The `unitconvert` operation takes care -of that. - -Many North American systems are defined with coordinates in feet. For example -in Vermont:: - - +proj=pipeline - +step +proj=tmerc +lat_0=42.5 +lon_0=-72.5 +k=0.999964286 +x_0=500000.00001016 +y_0=0 - +step +proj=unitconvert +xy_in=m +xy_out=us-ft - -Often when working with GNNS data the timestamps are presented in GPS-weeks, -but when the data transformed with the `helmert` operation timestamps are -expected to be in units of decimalyears. This can be fixed with `unitconvert`:: - - +proj=pipeline - +step +proj=unitconvert +t_in=gpsweek +t_out=decimalyear - +step +proj=helmert +epoch=2000.0 +t_obs=2017.5 ... - - -Distance units -############################################################################### - -In the table below all distance units supported by PROJ is listed. -The same list can also be produced on the command line with `proj` or `cs2cs`, -by adding the `-lu` flag when calling the utility. - -+----------+---------------------------------+ -| Label | Name | -+----------+---------------------------------+ -| km | Kilometer | -+----------+---------------------------------+ -| m | Meter | -+----------+---------------------------------+ -| dm | Decimeter | -+----------+---------------------------------+ -| cm | Centimeter | -+----------+---------------------------------+ -| mm | Millimeter | -+----------+---------------------------------+ -| kmi | International Nautical Mile | -+----------+---------------------------------+ -| in | International Inch | -+----------+---------------------------------+ -| ft | International Foot | -+----------+---------------------------------+ -| yd | International Yard | -+----------+---------------------------------+ -| mi | International Statute Mile | -+----------+---------------------------------+ -| fath | International Fathom | -+----------+---------------------------------+ -| ch | International Chain | -+----------+---------------------------------+ -| link | International Link | -+----------+---------------------------------+ -| us-in | U.S. Surveyor's Inch | -+----------+---------------------------------+ -| us-ft | U.S. Surveyor's Foot | -+----------+---------------------------------+ -| us-yd | U.S. Surveyor's Yard | -+----------+---------------------------------+ -| us-ch | U.S. Surveyor's Chain | -+----------+---------------------------------+ -| us-mi | U.S. Surveyor's Statute Mile | -+----------+---------------------------------+ -| ind-yd | Indian Yard | -+----------+---------------------------------+ -| ind-ft | Indian Foot | -+----------+---------------------------------+ -| ind-ch | Indian Chain | -+----------+---------------------------------+ - - -Time units -############################################################################### - -In the table below all time units supported by PROJ is listed. - -+--------------+-----------------------------+ -| mjd | Modfied Julian date | -+--------------+-----------------------------+ -| decimalyear | Decimal year | -+--------------+-----------------------------+ -| gps_week | GPS Week | -+--------------+-----------------------------+ - |