Proj4 Github

4 C library. 4当前支持在某些情况下使用网格转换文件在当前基准和wgs84直接转换。 网格转换表的格式是ctable(使用PROJ. Then, type the following: turnin -c cs502 -p proj4 proj4 To verify your turned-in work, do: turnin -c cs502 -p proj4 -v Testing. conda-forge is a GitHub organization containing repositories of conda recipes. Datum Grids ¶. The projection algorithms and coordinate system definitions are ported from PROJ. The core of this library is a port of the PROJ. exe的功能是一样的,我们看看如何做到这一点。Proj4提供的开发接口并不多,但是接口参数中的坐标系统却十分繁多,假设我们需要实现将WGS84经纬度的坐标转换到墨卡托投影坐标系统下,代码如下:. To turn in your project, make sure that you are in the directory that contains the proj4 directory. Minimum supported Python version is 3. An archive of the CodePlex open source hosting site. sourceforge. Proj4 reprojection library, version 4. Originally, this Project was based on the twelfth task of the Udacity Self-Driving Car Nanodegree program. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. CRS units type for coordinates conversion (one of control options. Point objects, an object of the form {x:x,y:y}, or an array of the form [x,y]. The canonical data cube most of us have in mind is that where two dimensions represent spatial raster dimensions, and the third time (or band), as e. o The foundational component of PROJ is the library libproj. , on the web). Leaflet is the leading open-source JavaScript library for mobile-friendly interactive maps. Originally a port of PROJ. 000Z","updated_at":"2019-09-27T19:31:06. Starting Points GitHub-- Contribute to Proj4js on Github Download-- Get Proj4js now! UserGuide-- User documentation - how to use Proj4js Examples?-- Examples of Proj4js in use MailingList-- Mailing lists and contact info. or just manually grab the file proj4. Click a link that says Proj4 and you will get the correct proj4 text presentation for your projection. proj4 --version 2. Test code coverage history for OSGeo/proj. Title: Description. 4 syntax, you specify the complete set of parameters including the ellipse, datum, projection units and projection definition that define a particular CRS. Provide details and share your research! But avoid …. Default is "Metric". The core of this library is a port of the PROJ. x on port 5432 from the drop down menu. PyCRS package is a handy library for dealing with projections. The import statement cannot be used in embedded scripts unless such script has a type="module". The project is now on github. o Implement new virtual file api (projFileAPI) so that all access to grid shift and init files can be hooked. 4 C library. 4 CRS string as the coordinate reference system to an object even if it doesn’t make sense. 4 string from an existing PROJ. Acknowledgements¶. so files into /usr/lib64/ for some reason. dotnet add package Retyped. Minimum supported Python version is 3. js from the latest release 's dist/ folder. 0。 1、正常编译RELEASE版本. Posts about Proj4 written by danclewley. PyCRS package is a handy library for dealing with projections. Proj4js is a part of the MetaCRS group of projects and uses the same MIT style license as PROJ. 4) is a library for performing conversions between cartographic projections. o Implement CMake as an option for building PROJ. Geographic data from Eurostat's GISCO program. Geobricks Proj4 to EPSG code convert library. An ICRS implementation that uses a Proj4 definition for the projection. install() if found to live already in the installing target. QGIS and many other applications make use of C++ lib called proj. {"categories":[{"categoryid":387,"name":"app-accessibility","summary":"The app-accessibility category contains packages which help with accessibility (for example. OpenLayers has been developed to further the use of geographic information of all kinds. npm install proj4 bower install proj4 component install proj4js/proj4js or just manually grab the file proj4. Sometimes, during the course of data processing even through the spatial information is correct there can be problems with the projection information, either it it lost, not stored in a format the software can understand or is stored slightly differently to other datasets with the same projection. Installing. net aerial imagery Android API basemap basemaps cloud mapping data editing desktop geocoding gis gis data gis for iOS gis sdk github iOS linux map data mapping mapping sdk maps map suite mapsuite mobile mobile gis mono mvc online maps OpenStreetMap raster raster layer routing routing algorithm routing api SDK spatial query SQLite thinkgeo. Proj4php is a community project. if you do not want to download anything, Proj4js is also hosted on cdnjs for direct use in your browser applications. Fortunately, there are some really good and really free programs and DLLs available on the subject. Leaflet is designed with simplicity, performance and usability in mind. As we can see, here, the crs is a Python dictionary with a key init that has a value epsg:4326. GitHub Gist: instantly share code, notes, and snippets. GeoTrellis relies heavily on the Proj4J library, which in turn borrows much of its implementation from the proj. com Go URL. Thanks to some awesome continuous integration providers (AppVeyor, Azure Pipelines, CircleCI and TravisCI), each repository, also known as a feedstock, automatically builds its own recipe in a clean and repeatable way on Windows, Linux and OSX. I had trouble interpolating the graticules. "EPSG:4326" label: String: CRS label (for coordinates conversion) type: String: CRS units type to be displayed in control (one of control options. Test pip install pytest pytest-cov py. ☰ Esri Leaflet Tutorials Plugins Examples API Reference Download View on GitHub. test --cov-report term-missing --cov=geotable tests. This function returns the "proj4" string for a particular datum and possily projection. The library is based on the work of Gerald Evenden at the USGS, but is now an OSGeo project maintained by Howard Butler. 4' libraries are external to the package, and, when installing the package from source, must be correctly installed first. 4 which has been around for some time now and is tried and tested, refer to OSGeo Proj. Das Königreich [#71897] Sachsen 211/ Stahlstich um 1860. If you do not already have the definition, you can find most at sites like epsg. If you happen to have a shapefile that has an undefined projection in R, but you happen to know what projection the data is in, you can set the projection as follows:. I rebooted the machine and the issue disappeared. 4) is a library for performing conversions between cartographic projections. I'm a great fan of the free GIS package QGIS (just my opinion). When all 3 arguments are given, the result is that the coordinates are transformed from projection1 to projection 2. xml: Fix typo puffered -> buffered. 000Z","updated_at":"2019-09-27T19:31:06. Originally a port of PROJ. Finally, the geoapi-examples module places code samples in public domain, which implementors can use as a starting point for their own products. The library is based on the work of Gerald Evenden at the USGS, but is now an OSGeo project maintained by Howard Butler. 打开VS2008的命令行工具,然后将其工作目录切换到F:\Work\3rdPart\proj-4. Clone via HTTPS Clone with Git or checkout with SVN using the repository's web address. 4 and GCTCP C it is a part of the MetaCRS group of projects. org and clicking the Proj4 link. gsb 新的加拿大和澳大利亚格式). I usually post in StackOverFlow - if this is the incorrect area to post - I apologise. proj4 - A simple R interface to the PROJ. 000Z","updated_at":"2019-09-27T19:31:06. Join them to grow your own development teams, manage permissions, and collaborate on projects. GitHub Gist: instantly share code, notes, and snippets. For example, elev. 4 string, a shortcut, or a CRS object. So what exactly is the need of using JavaScript in the server? To make the. Proj4js is a JavaScript library to transform point coordinates from one coordinate system to another, including datum transformations. For instance when trying to use PyProj to transform coordinates from a non-proj4 crs format. 4 project also distributes the datum-grid package,. Geographic data from Eurostat's GISCO program. GitHub Gist: instantly share code, notes, and snippets. The 'GDAL' and 'PROJ. html; Common. 1, provision is made for 'PROJ6' accommodation, with 'PROJ6' functionality to follow; from 1. The canonical data cube most of us have in mind is that where two dimensions represent spatial raster dimensions, and the third time (or band), as e. For the following example I would expect the code to return the given lat/log [ 48. I got that crazy long string by searching for the projection on spatialreference. This site uses YARD to generate docs on the fl. Click a link that says Proj4 and you will get the correct proj4 text presentation for your projection. Installation. Coordinates may be proj4. If you need to use a raster PNG badge, change the '. Datum Grids ¶. For example, the WGS84 proj4 SRS looks like this:. Proj4 Implementation¶. This is likely to be the only class you need to work with in Proj4Leaflet, unless you have special requirements. , on the web). Evenden在1980年代创立并一直维护到退休,后转手到Frank Warmerdam手中。. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. An ICRS implementation that uses a Proj4 definition for the projection. js from the latest release's dist/ folder. 4 software - not needed if you are only doing an NCAR Graphics build. that should be the default behavior for install. js – in simple words – is server-side JavaScript. Leaflet is the leading open-source JavaScript library for mobile-friendly interactive maps. Proj4js is a part of the MetaCRS group of projects and uses the same MIT style license as PROJ. The library also ships with executables for performing these transformations from the command line. type: String: optional. Sign up Python interface to PROJ (cartographic projections and coordinate transformations library) https://pyproj4. Acknowledgements¶. Spatialys is a company founded by Even Rouault that is dedicated to providing to its clients the best of its expertise around Open Source geospatial software and standards. sudo yum install git-core boost-devel gcc-c++ sudo yum install postgresql-server postgresql-devel flex. The canonical data cube most of us have in mind is that where two dimensions represent spatial raster dimensions, and the third time (or band), as e. From within the Application Stack Builder (to run outside of the installer, Start ‣ Programs ‣ PostgreSQL 9. I'm a great fan of the free GIS package QGIS (just my opinion). Coordinates may be proj4. Let’s explore some data to see. 4-feedtstock maintainers If these installation methods do not meet your needs, the section below provides further instructions for getting setup. The same source code archive can also be used to build the Windows and Mac versions, and is the starting point for ports to all other platforms. ggalt: Extra Coordinate Systems, 'Geoms', Statistical Transformations, Scales and Fonts for 'ggplot2' A compendium of new geometries, coordinate systems, statistical transformations, scales and fonts for 'ggplot2', including splines, 1d and 2d densities, univariate average shifted histograms, a new map coordinate system based on the 'PROJ. 4 library, isn’t necessary with Xcode 5. Geographic data from Eurostat's GISCO program. As a valued partner and proud supporter of MetaCPAN, StickerYou is happy to offer a 10% discount on all Custom Stickers, Business Labels, Roll Labels, Vinyl Lettering or Custom Decals. GitHub Gist: instantly share code, notes, and snippets. $ cnpm install @types/proj4. V581 SHERRI HILL 32347 SZ 2 LT GREEN 2 PC BEADED V366 FORMAL PROM DRESS,Japanese Mens Kimono HAORI Jacket Coat Silk Black 3 Size Japan EMS,New Ladies Comfort Shoes Slip on Casual Pumps Cushioned Floral Low Wedge Heels. ProjNet精度有限,支持的坐标系也有限,用WKT表示的坐标系转换参数远没有proj4表示的清爽和一目了然。于是试试proj. Learn how to use git and GitHub to collaborate on projects Select Data From Pandas Dataframes. However, we can save the in-memory raster to any format supported by GDAL very conveniently by making a copy of the dataset. 4) is a library for performing conversions between cartographic projections. net aerial imagery Android API basemap basemaps cloud mapping data editing desktop geocoding gis gis data gis for iOS gis sdk github iOS linux map data mapping mapping sdk maps map suite mapsuite mobile mobile gis mono mvc online maps OpenStreetMap raster raster layer routing routing algorithm routing api SDK spatial query SQLite thinkgeo. 4 cartographic projections library. I can't replicate your issue, are you choosing to update all the dependencies when asked by the installer? remotes::install_github("hrbrmstr/ggalt", ref = "noproj") Downloading GitHub repo hrbrmstr/[email protected] These packages have more recent versions available. In Linux, the install. 0-RC2 GeoTrellis is an open source geographic data processing engine for high performance applications. Posts about Proj4 written by danclewley. A word of caution - R will let you assign any valid PROJ. Welcome to Spatialys. 4 library when type is equal to proj, ellps, datum or units; when type equals have_datum_files a boolean is returned indicating whether datum files are installed and accessible (checking for conus). Installing. The library is based on the work of Gerald Evenden at the USGS, but is now an OSGeo project maintained by Howard Butler. The main goal of the project is to train an artificial neural network for semantic segmentation of a video from a front-facing camera on a car in order to mark road pixels with Tensorflow (using the KITTI dataset). Let’s break down the pieces of proj4 string. GitHub is a website that supports git-based version control and collaborative project management. sourceforge. Within RSGISLib there are some functions for this within imageutils. Test pip install pytest pytest-cov py. 4是开源GIS最著名的地图投影库,许多GIS开源软件的投影都直接使用Proj. p4-budget EECS 285 Project 4: Budget Tracker First App Due Wednesday, 20 Nov 2019, 8pm Project Due Friday, 6 Dec 2019, 8pm. Proj 6 in PostGIS 22 Feb 2019. or just manually grab the file proj4. 4, numpy and shapely libraries and includes a programatic interface built on top of Matplotlib for the creation of publication quality maps. There is a correspondence between proj. When all 3 arguments are given, the result is that the coordinates are transformed from projection1 to projection 2. The step of adding the library to the project configures the linking automagically. Proj 6 in PostGIS 22 Feb 2019. r ’s CS is in a UTM projection ( +proj=utm ) for zone 19 ( +zone=19 ) and in an NAD 1983 datum ( +datum=NAD83 ). I rebooted the machine and the issue disappeared. sudo yum install git-core boost-devel gcc-c++ sudo yum install postgresql-server postgresql-devel flex. Coordinates may be proj4. npm install --save @types/proj4. While testing a script on a machine where python-gdal had been manually installed, several errors appeared of the form: ERROR 6: Unable to load PROJ. npm install proj4 bower install proj4 component install proj4js/proj4js or just manually grab the file proj4. 4 syntax, you specify the complete set of parameters including the ellipse, datum, projection units and projection definition that define a particular CRS. 从官网下载PROJ4的源代码,解压到文件夹中,如F:\Work\3rdPart\proj-4. I can't replicate your issue, are you choosing to update all the dependencies when asked by the installer? remotes::install_github("hrbrmstr/ggalt", ref = "noproj") Downloading GitHub repo hrbrmstr/[email protected] These packages have more recent versions available. I have trying to convert a lot of northings / eastings to lat lng I have code below working: In ruby using. Masking / clipping raster¶. Is anyone familiar with this?. Sign up PROJ - Cartographic Projections and Coordinate Transformations Library https://proj. GitHub is a website that supports git-based version control and collaborative project management. Minimum supported Python version is 3. Well, what about hosting the dlls in github/proj4? They are relatively small (300 KB) and could be removed after the Pkg. 这个功能实际上和Proj. This is a PHP-Class for geographic coordinates transformation using proj4 definitions, thanks to a translation from Proj4JS. Thanks to some awesome continuous integration providers (AppVeyor, Azure Pipelines, CircleCI and TravisCI), each repository, also known as a feedstock, automatically builds its own recipe in a clean and repeatable way on Windows, Linux and OSX. Key features of cartopy are its object oriented projection definitions, and its ability to transform points, lines, vectors, polygons and images between those projections. Proj4js is a JavaScript library to transform point coordinates from one coordinate system to another, including datum transformations. The projection algorithms and coordinate system definitions are ported from PROJ. Provide details and share your research! But avoid …. 4, JavaScript, SQL). The CRS for your data are given to us by R in proj4 format. This is a very typical way how CRS is stored in GeoDataFrames. Click a link that says Proj4 and you will get the correct proj4 text presentation for your projection. Alternative. PROJ >= 6 does not provide option type = "datums". Proj4js is a part of the MetaCRS group of projects and uses the same MIT style license as PROJ. 4'-library along with geom_cartogram() that mimics the. Originally a port of PROJ. GitHub Gist: instantly share code, notes, and snippets. , on the web). get_proj4: Get a PROJ. proj4 requires thelibprojlibrary. proj4 - A simple R interface to the PROJ. o Implement new virtual file api (projFileAPI) so that all access to grid shift and init files can be hooked. shown here:. 4 software for the transformation. It is intended to be easier to use than looking up particular proj4 strings (i. V581 SHERRI HILL 32347 SZ 2 LT GREEN 2 PC BEADED V366 FORMAL PROM DRESS,Japanese Mens Kimono HAORI Jacket Coat Silk Black 3 Size Japan EMS,New Ladies Comfort Shoes Slip on Casual Pumps Cushioned Floral Low Wedge Heels. 4 是开源GIS最著名的地图投影库,许多GIS开源软件的投影都直接使用Proj. ProjNet精度有限,支持的坐标系也有限,用WKT表示的坐标系转换参数远没有proj4表示的清爽和一目了然。于是试试proj. js from the latest release 's dist/ folder. PROJ (formerly PROJ. 0。 1、正常编译RELEASE版本. com Go URL. As a valued partner and proud supporter of MetaCPAN, StickerYou is happy to offer a 10% discount on all Custom Stickers, Business Labels, Roll Labels, Vinyl Lettering or Custom Decals. The Appendix covers various aspects of spatial data manipulation and analysis using R. html; Common. Originally a port of PROJ. The correct way to call proj4 in your code is: var bngcoords = proj4(bngprojection, [e. Extra Coordinate Systems, Geoms and Statistical Transformations for 'ggplot2' A compendium of 'geoms', 'coords' and 'stats' for 'ggplot2', including splines, 1d and 2d densities, univariate average shifted histograms and a new map coordinate system based on the 'PROJ. Leaflet is the leading open-source JavaScript library for mobile-friendly interactive maps. so), creation of OGRCoordinateTransformation failed. I'm using proj4 to project lat/log coordinates to UTM. exe的功能是一样的,我们看看如何做到这一点。Proj4提供的开发接口并不多,但是接口参数中的坐标系统却十分繁多,假设我们需要实现将WGS84经纬度的坐标转换到墨卡托投影坐标系统下,代码如下:. The CRS for your data are given to us by R in proj4 format. The proj4 SRS string (spatial referencing system) combines these two concepts and provides a way to describe the projection and coordinate system of a datasource at once. Proj4js is a JavaScript library to transform point coordinates from one coordinate system to another, including datum transformations. raster: README. Using the PROJ. GeoTrellis relies heavily on the Proj4J library, which in turn borrows much of its implementation from the proj. 4 library (libproj. 4 cartographic projections library. PostGIS and the new Proj4 transformation pipeline. or just manually grab the file proj4. raster needs updating or removal (#1649) 2012-03-19 12:07 Sandro Santilli * [r9516] postgis/lwgeom_functions_analytic. Install GEOS, PROJ4 & GDAL on amazon linux. 4'-library along with geom_cartogram() that mimics the. GitHub Repository: https://github. The step of adding the library to the project configures the linking automagically. 4 syntax, you specify the complete set of parameters including the ellipse, datum, projection units and projection definition that define a particular CRS. If you have the package installed (see installation directions), you can easily convert crs information between EPSG and ESRI codes and Proj4 specification. To turn in your project, make sure that you are in the directory that contains the proj4 directory. npm install proj4 bower install proj4 component install proj4js/proj4js or just manually grab the file proj4. Originally a port of PROJ. o Replace geodesic implementation with one from Charles Karney and add a supported public interface (geodesic. Depending on your preferences. This example shows client-side raster reprojection capabilities of OpenLayers 3 between various projections. Or when simply adding a crs definition to a file that was previously missing one. js from the latest release's dist/ folder. Welcome to Spatialys. If you have the package installed (see installation directions), you can easily convert crs information between EPSG and ESRI codes and Proj4 specification. The canonical data cube most of us have in mind is that where two dimensions represent spatial raster dimensions, and the third time (or band), as e. 4 scaling factor “+k_0” 1 Compiling QGIS 3. 26 Aug 2019 17:07:07 UTC 26 Aug 2019 17:07:07 UTC. CRS label to be displayed in control. ggalt uses the proj4 package (and that's where your issues are really coming from, not my pkg). o Implement new virtual file api (projFileAPI) so that all access to grid shift and init files can be hooked. o Implement CMake as an option for building PROJ. raster: README. Let’s explore some data to see. The library is based on the work of Gerald Evenden at the USGS, but is now an OSGeo project maintained by Howard Butler. dotnet add package Retyped. com Go URL. R expects projection information to come in this proj4 format. This video is unavailable. Well, what about hosting the dlls in github/proj4? They are relatively small (300 KB) and could be removed after the Pkg. 4 string, a shortcut, or a CRS object. 9 or above is needed to take advantage of improved geodetic. So now I'm looking to trobleshoot/repro. Download files. githubusercontent. # Let's take a look at the extent of the # shapefile to give us a clue to what projection # it may be. I usually post in StackOverFlow - if this is the incorrect area to post - I apologise. As a valued partner and proud supporter of MetaCPAN, StickerYou is happy to offer a 10% discount on all Custom Stickers, Business Labels, Roll Labels, Vinyl Lettering or Custom Decals. r ’s CS is in a UTM projection ( +proj=utm ) for zone 19 ( +zone=19 ) and in an NAD 1983 datum ( +datum=NAD83 ). I need to convert my coordinate system from WGS84 to EPSG:4141 but Proj. Minimum supported PROJ version is 6. x (master) on Ubuntu 16. The current version of Proj4Leaflet uses Proj4js 1. I can't replicate your issue, are you choosing to update all the dependencies when asked by the installer? remotes::install_github("hrbrmstr/ggalt", ref = "noproj") Downloading GitHub repo hrbrmstr/[email protected] These packages have more recent versions available. There is a correspondence between proj. nun PROJ, ist eine Programmbibliothek, mit der man Geodaten zwischen verschiedenen Kartennetzentwürfen konvertieren kann. Proj4js is a part of the MetaCRS group of projects and uses the same MIT style license as PROJ. If you need support for tile layers in other projections, the Proj4Leaflet plugin lets you use tiles in any projection supported by Proj4js, which means support for just about any projection commonly used. So now I'm looking to trobleshoot/repro. Hello Proj4! As it is the first time I'm posting, I think it's in order to thank you all for the awesome project you have build :)! I'm actively using Proj4 in a system that all of a sudden started erroring on me without any explanation in my logs. conda-forge is a GitHub organization containing repositories of conda recipes. The library also ships with executables for performing these transformations from the command line. 4是开源GIS最著名的地图投影库,GRASS GIS, MapServer, PostGIS, Thuban, OGDI, Mapnik, TopoCad, GDAL/OGR等软件的投影都直接或间接的使用Proj. 4-feedtstock maintainers If these installation methods do not meet your needs, the section below provides further instructions for getting setup. proj4php is a PHP-Class for geographic coordinates transformation using proj4 definitions. Using the PROJ. Otherwise, I have the same type of doubts on how to deal with GMT for example. or just manually grab the file proj4. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Working with projections in Leaflet. In Linux, the install. If you need to re-submit, you can follow the same set of steps that you would if you were submitting for the first time, but you will need to use the -f flag to tag and push to GitHub: # Do everything as above until you get to tagging git tag -f. There is a correspondence between proj. 4 software for the transformation. , on the web). sourceforge. 4的功能主要有经纬度坐标与地理坐标的转换,坐标系的转换,包括基准变换等,下面以命令行方式和编程方式来说明经纬度. I'm not sure how to share buffers and get OpenCL and OpenGL interoperating (currently researching) so I don't think this will be the first thing I jump to. js from the latest release 's dist/ folder. Proj4js is a part of the MetaCRS group of projects and uses the same MIT style license as PROJ. Minimum supported Python version is 3. dotnet add package Retyped. However, we can save the in-memory raster to any format supported by GDAL very conveniently by making a copy of the dataset. proj4 - A simple R interface to the PROJ. Let’s break down the pieces of proj4 string. io Find an R package R language docs Run R in your browser R Notebooks. 4'-library along with geom_cartogram() that mimics the. Leaflet | © OpenStreetMap contributors Havs- och vattenmyndigheten (Swedish Agency for Marine and Water Management) | © OpenStreetMap contributors Havs- och. Geobricks Proj4 to EPSG code convert library. About proj4 GIT access Download/Files see also proj4 GitHub. The same source code archive can also be used to build the Windows and Mac versions, and is the starting point for ports to all other platforms. QGIS and many other applications make use of C++ lib called proj. 2012-03-19 20:40 Paul Ramsey * [r9517] README. One common task in raster processing is to clip raster files based on a Polygon. com Go URL. GitHub Gist: instantly share code, notes, and snippets. Clone via HTTPS Clone with Git or checkout with SVN using the repository’s web address. Or when wanting to convert the crs from a GeoJSON file to a. It has been getting a lot of buzz these days. This site uses YARD to generate docs on the fl. Proj4 crs alias (from proj4 defs) e. It is intended to be easier to use than looking up particular proj4 strings (i. cartography: Thematic Cartography Create and integrate maps in your R workflow. For example, elev. I usually post in StackOverFlow - if this is the incorrect area to post - I apologise. As it stands, reproject_dataset does not write to disk. This work is licensed under a Creative Commons Attribution-NonCommercial. ggalt uses the proj4 package (and that's where your issues are really coming from, not my pkg). I'm using proj4 to project lat/log coordinates to UTM. The library is based on the work of Gerald Evenden at the USGS, but is now an OSGeo project maintained by Howard Butler. o Implement CMake as an option for building PROJ. postgis, README. Originally a port of PROJ. Hello Proj4! As it is the first time I'm posting, I think it's in order to thank you all for the awesome project you have build :)! I'm actively using Proj4 in a system that all of a sudden started erroring on me without any explanation in my logs. The core of this library is a port of the PROJ.