我正在尝试使用RGeo gem在Ruby中进行一些空间操作.不幸的是，很多操作都需要GEOS库，而且我找不到任何文档说明如何在Windows中集成它(我使用的是Windows 7 64bit).
I'm trying to do some spatial operations in Ruby with the RGeo gem. Unfortunately, a lot of operations require the GEOS library and I can't find any documentation showing how to integrate this in Windows (I am using Windows 7 64bit).
我尝试从 trac.osgeo/下载并安装GEOS的Windows二进制文件. osgeo4w/并通过gem install rgeo -- --with-geos-dir="C:\OSGeo4W64\bin重新安装RGeo gem(<<在此目录中有一个文件geos_c.dll).
I tried downloading and installing the Windows binaries of GEOS from trac.osgeo/osgeo4w/ and reinstalling the RGeo gem via gem install rgeo -- --with-geos-dir="C:\OSGeo4W64\bin (<< in this directory there is a file geos_c.dll).
仍然使用RGeo::Geos.supported?返回false.
有人知道如何解决这个问题吗?
Does anybody know how to solve this?
推荐答案对于其他想要这样做的人-这里有一些有关如何使其工作的提示.
For anyone else looking to do this - here are some tips as to how I got it working.
-
通过点击 trac.osgeo/geos/安装GEOS Windows二进制文件a>(我有Ruby 32位版本，所以我选择了32位版本)
- 您现在应该可以在C:\OSGeo4W\bin 中找到文件geos_c.dll.
- 将Windows环境变量ENV['GEOS_LIBRARY_PATH']设置为C:\OSGeo4W\bin
- 此时检查以确保ENV变量存在-也许重新启动PC！
- 在您的Gem文件中，添加gem 'ffi-geos'和gem 'rgeo'并捆绑安装
- 在您的Ruby文件中，请记住依次按require 'ffi-geos'和require 'rgeo'
- 使用factory = RGeo::Geos.factory(:native_interface => :ffi)-不 RGeo::Cartesian.factory
- 按照Dirk的说法检查RGeo::Geos.supported?
- install GEOS Windows binaries by following the link from trac.osgeo/geos/ (I have Ruby 32 bit version, so I went for the 32 bit version)
- you should now be able to find a file geos_c.dll in C:\OSGeo4W\bin
- set a Windows environment variable ENV['GEOS_LIBRARY_PATH'] to be C:\OSGeo4W\bin
- check at this point to make sure that ENV variable is there - maybe restart your PC!
- in your Gemfile, add gem 'ffi-geos' and gem 'rgeo' and bundle install
- in your Ruby file, remember to require 'ffi-geos' and require 'rgeo' (in that order)
- use factory = RGeo::Geos.factory(:native_interface => :ffi) - not RGeo::Cartesian.factory
- check RGeo::Geos.supported? as Dirk said
更多推荐
Windows下在Ruby上的RGeo:如何启用GEOS支持?
发布评论