diff options
Diffstat (limited to 'docs/source/usage/operations')
7 files changed, 9 insertions, 9 deletions
diff --git a/docs/source/usage/operations/conversions/index.rst b/docs/source/usage/operations/conversions/index.rst index 54324ec4..af27e2fd 100644 --- a/docs/source/usage/operations/conversions/index.rst +++ b/docs/source/usage/operations/conversions/index.rst @@ -5,7 +5,7 @@ Conversions ================================================================================ Conversions are coordinate operations in which both coordinate reference systems -are based on the same datum. In PROJ.4 projections are differentiated from +are based on the same datum. In PROJ projections are differentiated from conversions. .. toctree:: diff --git a/docs/source/usage/operations/conversions/unitconvert.rst b/docs/source/usage/operations/conversions/unitconvert.rst index ad848207..73e517bd 100644 --- a/docs/source/usage/operations/conversions/unitconvert.rst +++ b/docs/source/usage/operations/conversions/unitconvert.rst @@ -46,7 +46,7 @@ expected to be in units of decimalyears. This can be fixed with `unitconvert`:: Distance units ############################################################################### -In the table below all distance units supported by PROJ.4 is listed. +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. @@ -100,7 +100,7 @@ by adding the `-lu` flag when calling the utility. Time units ############################################################################### -In the table below all time units supported by PROJ.4 is listed. +In the table below all time units supported by PROJ is listed. +--------------+-----------------------------+ | mjd | Modfied Julian date | diff --git a/docs/source/usage/operations/index.rst b/docs/source/usage/operations/index.rst index d78f8947..87bfdc40 100644 --- a/docs/source/usage/operations/index.rst +++ b/docs/source/usage/operations/index.rst @@ -4,11 +4,11 @@ Coordinate operations ================================================================================ -Coordinate operations in PROJ.4 are divided into three groups: +Coordinate operations in PROJ are divided into three groups: Projections, conversions and transformations. Projections are purely cartographic mappings of the sphere onto the plane. Technically projections are conversions (according to ISO standards), though in -PROJ.4 projections are distinguished from conversions. Conversions are coordinate +PROJ projections are distinguished from conversions. Conversions are coordinate operations that do not exert a change in reference frame. Operations that do exert a change in reference frame are called transformations. diff --git a/docs/source/usage/operations/projections/geos.rst b/docs/source/usage/operations/projections/geos.rst index 3b24e1f7..28b96736 100644 --- a/docs/source/usage/operations/projections/geos.rst +++ b/docs/source/usage/operations/projections/geos.rst @@ -66,7 +66,7 @@ This example represents the scanning geometry of the Meteosat series satellite. However, the GOES satellite series use the opposite scanning geometry, with the E/W axis (``x``) as the sweep-angle axis, and the N/S (``y``) as the fixed-angle axis. -The sweep argument is used to tell PROJ.4 which on which axis the outer-gimbal +The sweep argument is used to tell PROJ which on which axis the outer-gimbal is rotating. The possible values are x or y, y being the default. Thus, the scanning geometry of the Meteosat series satellite should take sweep as x, and GOES should take sweep as y. diff --git a/docs/source/usage/operations/projections/index.rst b/docs/source/usage/operations/projections/index.rst index f7eb0c67..904dc9e6 100644 --- a/docs/source/usage/operations/projections/index.rst +++ b/docs/source/usage/operations/projections/index.rst @@ -5,7 +5,7 @@ Projections ================================================================================ Projections are coordinate operations that are technically conversions but since -projections are so fundamental to PROJ.4 we differentiate them from conversions. +projections are so fundamental to PROJ we differentiate them from conversions. Projections map the spherical 3D space to a flat 2D space. diff --git a/docs/source/usage/operations/transformations/hgridshift.rst b/docs/source/usage/operations/transformations/hgridshift.rst index a9690260..7f3c9895 100644 --- a/docs/source/usage/operations/transformations/hgridshift.rst +++ b/docs/source/usage/operations/transformations/hgridshift.rst @@ -30,7 +30,7 @@ of the continental US, Alaska and Canada is loaded at the same time:: +hgridshift +grids=@conus,@alaska,@ntv2_0.gsb,@ntv_can.dat The ``@`` in the above example states that the grid is optional, in case the grid -is not found in the PROJ.4 search path. The list of grids is prioritized so that +is not found in the PROJ search path. The list of grids is prioritized so that grids in the start of the list takes presedence over the grids in the back of the list. diff --git a/docs/source/usage/operations/transformations/vgridshift.rst b/docs/source/usage/operations/transformations/vgridshift.rst index 31b3e56e..e9f78310 100644 --- a/docs/source/usage/operations/transformations/vgridshift.rst +++ b/docs/source/usage/operations/transformations/vgridshift.rst @@ -32,7 +32,7 @@ the global model:: +vgridshift +grids=@dvr90.gtx,egm96_16.gtx The ``@`` in the above example states that the grid is optional, in case the grid -is not found in the PROJ.4 search path. The list of grids is prioritized so that +is not found in the PROJ search path. The list of grids is prioritized so that grids in the start of the list takes presedence over the grids in the back of the list. |