[PROJ] PROJ Digest, Vol 18, Issue 30
David Gispert
davidgispert at gmail.com
Tue Apr 28 13:47:48 PDT 2020
Thank you Oscar
El lun., 27 abr. 2020 21:01, <proj-request at lists.osgeo.org> escribió:
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> Today's Topics:
>
> 1. PROJ 7.0.1RC1 & 6.3.2RC1 (Kristian Evers)
> 2. projection Gall-Bomford (Gall Modified) (David Gispert)
> 3. Re: projection Gall-Bomford (Gall Modified) (Oscar van Vlijmen)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 27 Apr 2020 11:22:45 +0200
> From: Kristian Evers <kristianevers at gmail.com>
> To: PROJ <proj at lists.osgeo.org>
> Subject: [PROJ] PROJ 7.0.1RC1 & 6.3.2RC1
> Message-ID: <E50977E3-EC8D-41B5-B7DA-2BCD4FCBA0AF at gmail.com>
> Content-Type: text/plain; charset=us-ascii
>
> All,
>
> With scheduled releases of PROJ 7.0.1 and 6.3.2. on May 1st it is time
> to put out release candidates. Both candidates includes a number of bug
> fixes since the previous release. 7.0.1 includes 39 bug fixes and 16 bugs
> has been fixed in 6.3.2. See the release notes below.
>
> Archives are available here:
>
> http://download.osgeo.org/proj/proj-7.0.1RC1.tar.gz
> http://download.osgeo.org/proj/proj-7.0.1RC1.zip
> http://download.osgeo.org/proj/proj-6.3.2RC1.tar.gz
> http://download.osgeo.org/proj/proj-6.3.2RC1.zip
>
>
> Please test the release candidates and report back any problems you
> may encounter.
>
> If no issues are found with the two release candidates the final releases
> will be announced on Friday May 1st.
>
> /Kristian
>
>
>
> 7.0.1 Release Notes
> -------------------
>
> Updates
> -------
>
> o Database: update to EPSG v9.8.9 #2141
>
> Bug fixes
> ---------
>
> o Make tests independent of proj-datumgrid (#1995)
>
> o Add missing projection property tables (#1996)
>
> o Avoid crash when running against SQLite3 binary built with
> -DSQLITE_OMIT_AUTOINIT (#1999)
>
> o createOperations(): fix wrong pipeline generation with CRS that has
> +nadgrids=
> and +pm= (#2002)
>
> o Fix bad copy&replace pattern on HEALPix and rHEALPix projection names
> (#2007)
>
> o createUnitOfMeasure(): use full double resolution for the conversion
> factor (#2014)
>
> o Update README with info on PROJ-data (#2015)
>
> o utm/ups: make sure to set errno to PJD_ERR_ELLIPSOID_USE_REQUIRED if
> es==0 (#2045)
>
> o data/Makefile.am: remove bashism (#2048)
>
> o ProjectedCRS::identify(): tune it to better work with ESRI WKT
> representation of EPSG:2193 (#2059)
>
> o Fix build with gcc 4.8.5 (#2066)
>
> o Autotools/pkg-conf: Define datarootdir (#2069)
>
> o cs2cs: don't require +to for '{source_crs} {target_crs} filename...'
> syntax (#2081)
>
> o CMake: fix bug with find_package(PROJ) with macOS (#2082)
>
> o ESRI WKT import / identification: special case for
> NAD_1983_HARN_StatePlane_Colorado_North_FIPS_0501 with Foot_US unit
> (#2088)
>
> o ESRI WKT import / identification: special case for
> NAD_1983_HARN_StatePlane_Colorado_North_FIPS_0501 with Foot_US unit
> (#2089)
>
> o EngineeringCRS: when exporting to WKT1_GDAL, output unit and axis
> (#2092)
>
> o Use jtsk03-jtsk horizontal grid from CDN (#2098)
>
> o CMake: prefer to use use PROJ_SOURCE_DIR and PROJ_BINARY_DIR (#2100)
>
> o Fix wrong grids file name in esri.sql (#2104)
>
> o Fix identification of projected CRS whose name is close but not strictly
> equal to a ESRI alias (#2106)
>
> o Fix working of Helmert transform between the horizontal part of
> 2 compoundCRS (#2111)
>
> o Database: fix registration of custom entries of
> grid_transformation_custom.sql
> for geoid grids (#2114)
>
> o ESRI_WKT ingestion: make sure to identify to non-deprecated EPSG entry
> when
> possible (#2119)
>
> o Make sure that importing a Projected 3D CRS from WKT:2019 keeps the base
> geographic CRS as 3D (#2125)
>
> o createOperations(): improve results of compoundCRS to compoundCRS case
> (#2131)
>
> o hgridshift/vgridshift: defer grid opening when grid has already
> been opened (#2132)
>
> o Resolve a few shadowed declaration warnings (#2142)
>
> o ProjectedCRS identification: deal with switched 1st/2nd std parallels
> for
> LCC_2SP(#2153)
>
> o Fix Robinson inverse projection (#2154)
>
> o createOperations(): do not remove ballpark transformation if there are
> only
> grid based operations, even if they cover the whole area of use (#2156)
>
> o createFromCoordinateReferenceSystemCodes(): 'optimization' to avoid
> using
> C++ exceptions (#2161)
>
> o Ingestion of WKT1_GDAL: correctly map 'Cylindrical_Equal_Area' (#2167)
>
> o Add limited support for non-conformant WKT1 LAS COMPD_CS[] (#2172)
>
> o PROJ4 string import: take into correctly non-metre unit when the string
> looks like the one for WGS 84 / Pseudo Mercator (#2177)
>
> o io.hpp: avoid dependency to proj_json_streaming_writer.hpp (#2184)
>
> o Fix support of WKT1_GDAL with netCDF rotated pole formulation (#2186)
>
>
>
> 6.3.2 Release Notes
> -------------------
>
> Bug fixes
> ---------
>
> o validateParameters(): fix false-positive warning on
> Equidistant Cylindrical (#1947)
>
> o proj_create_crs_to_crs(): avoid potential reprojection failures when
> reprojecting area of use to source and target CRS (#1993)
>
> o createOperations(): fix wrong pipeline generation with CRS that has
> +nadgrids=
> and +pm= (#2003)
>
> o Fix bad copy&replace pattern on HEALPix and rHEALPix projection names
> (#2006)
>
> o createUnitOfMeasure(): use full double resolution for the conversion
> factor (#2013)
>
> o data/Makefile.am: remove bashism (#2047)
>
> o ProjectedCRS::identify(): tune it to better work with ESRI WKT
> representation
> of EPSG:2193 (#2058)
>
> o EngineeringCRS: when exporting to WKT1_GDAL, output unit and axis
> (#2091)
>
> o Add missing entries in grid_alternatives for Portugal grids coming from
> ESRI entries (#2103)
>
> o Fix working of Helmert transform between the horizontal part of 2
> compoundCRS (#2110)
>
> o ESRI_WKT ingestion: make sure to identify to non-deprecated EPSG entry
> when
> possible (#2118)
>
> o Make sure that importing a Projected 3D CRS from WKT:2019 keeps the base
> geographic CRS as 3D (#2124)
>
> o createOperations(): improve results of compoundCRS to compoundCRS case
> (#2130)
>
> o PROJ4 string import: take into correctly non-metre unit when the string
> looks
> like the one for WGS 84 / Pseudo Mercator (#2178)
>
> o Fix support of WKT1_GDAL with netCDF rotated pole formulation (#2187)
>
> o io.hpp: avoid dependency to proj_json_streaming_writer.hpp (#2188)
>
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 27 Apr 2020 12:38:32 +0200
> From: David Gispert <davidgispert at gmail.com>
> To: proj at lists.osgeo.org
> Subject: [PROJ] projection Gall-Bomford (Gall Modified)
> Message-ID:
> <
> CALZ3vN19eLLHr_X+qNk+xAO4Sf-jhYvGJDSgNGaGvkQQA+tUSQ at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hi everybody.
>
> I need help to aggregate the Gall-Bombford projection to Qgis.
>
> I don't have the characteristics of this projection.
>
> Only this:
>
>
> https://map-projections.net/compare.php?p1=gall-bomford&p2=gall-stereographic&w=1&sm=1&d=1
>
> Thank you very much for your help
>
> Salutacions,
>
> David Gispert
> davidgispert at gmail.com
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> ------------------------------
>
> Message: 3
> Date: Mon, 27 Apr 2020 19:51:34 +0200 (CEST)
> From: Oscar van Vlijmen <vanadovv at hetnet.nl>
> To: proj at lists.osgeo.org
> Subject: Re: [PROJ] projection Gall-Bomford (Gall Modified)
> Message-ID: <1294348252.3408943.1588009894686 at kpc.webmail.kpnmail.nl>
> Content-Type: text/plain; charset="utf-8"
>
> My two cents:
>
> Gall-Bomford projection
> ===============
>
> Gall's stereographic cylindrical:
> y = R(1 + (1/2)sqrt(2)) tan ((1/2)phi).
> For the Oxford version, devised by Guy Bomford about 1950 and called a
> modified Gall, the meridians are fairly straight at lower latitudes and
> curve slightly to decrease scale exaggeration near the poles, While the
> Gall cylindrical spacing is x = R.lambda/sqrt(2), Oxford's modification
> appears to fit approximately the formula
> x = (1 - O.04.phi^4) R.lambda/sqrt(2).
>
> Source: A Comparison of Pseudocylindrical Map Projections
> John P. Snyder
> The American Cartographer, Vol. 4 No. 1, 59-81 (1977), page 75
>
>
> The formulas used by most map drawing programs for both Guy Bomford's
> Modified Gall projection and the Denoyer Semi-Elliptical projection were
> due to John P. Snyder. In his book Flattening the Earth, he mentions that
> projection in passing, noting that the scale of longitude is "about 1 - 0.4
> * phi^4" where phi represents the latitude, compared to that of the
> equator, so he may merely have been attempting to sketch out roughly what
> the projection was like, not to seriously propose a method of drawing it. I
> haven't tried for an exact match myself; as noted above, I added a small
> term proportional to the square of the latitude to correct the visibly
> obvious deficiency of implementations of this formula. Scaled to a latitude
> in radians, my formula becomes 1 - .01857755 * phi^2 - .030077 * phi^4. I
> calculated it based on matching two of my measurements that seemed most
> representative, then checking that the overall result had roughly the same
> appearance as the real map.
>
> Source: Pseudocylindrical and Pseudoconic Projections
> Part of "Map Projections", by John J. G. Savard
> http://quadibloc.com/maps/mpse04.htm
>
>
> See also:
> proj_cyl_stere.c, Cylindrical Stereographic projection code by Gerald I.
> Evenden, 2003, 2006, part of the package libproj - library of cartographic
> projections.
>
>
> Yours,
> Oscar van Vlijmen
>
>
>
>
>
> > Op 27 april 2020 om 12:38 schreef David Gispert <davidgispert at gmail.com
> >:
> >
> > Hi everybody.
> >
> > I need help to aggregate the Gall-Bombford projection to Qgis.
> >
> > I don't have the characteristics of this projection.
> >
> > Only this:
> >
> >
> https://map-projections.net/compare.php?p1=gall-bomford&p2=gall-stereographic&w=1&sm=1&d=1
> >
> > Thank you very much for your help
> >
> > Salutacions,
> >
> > David Gispert
> > davidgispert at gmail.com mailto:davidgispert at gmail.com
> > _______________________________________________
> > PROJ mailing list
> > PROJ at lists.osgeo.org
> > https://lists.osgeo.org/mailman/listinfo/proj
> >
>
>
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>
> End of PROJ Digest, Vol 18, Issue 30
> ************************************
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