Can mapnik3.0 be installed on a Windows system?

[gisgirlone]

No description provided.

[millapet]

Windows binaries are no longer suppported, as per mapnik/node-mapnik/issues/848 . I did make mapnik work after that by creating a VS solution by hand, it was however a pain (to put it mildly). This was of course more a one-time thing rather than a sustainable approach.

Edit: I have just noticed #4056 where there is a link to a CMake build which can be used with Visual Studio, but have not tried it yet.

[pedro-vicente]

yes, this fork

https://github.com/pedro-vicente/mapnik

has a CMake build for the 3.0 and 2.3 branches with the minimum dependencies

the 2.3 branch builds without errors and runs a test program with the OSM plugin
the 3.0 branch has some compiling errors, with Visual Studio 2019

I'll post those errors here later

[pedro-vicente]

here are the 3.0 errors

L:\mapnik\include\mapnik/feature.hpp(108,14): error C2664: 'mapnik::geometry::geometry::geometry(const mapnik::geometry::geometry &)': cannot convert argument 1 from 'mapnik::geometry::geometry_empty' to 'mapbox::util::no_init'

code

feature_impl(context_ptr const& ctx, mapnik::value_integer _id)
        : id_(_id),
        ctx_(ctx),
        data_(ctx_->mapping_.size()),
        geom_(geometry::geometry_empty()),
        raster_() {}

[pedro-vicente]

L:\mapnik\include\mapnik/geometry/reprojection_impl.hpp(171,1): error C2440: 'return': cannot convert from 'mapnik::geometry::geometry_empty' to 'mapnik::geometry::geometry'

code

geometry<T> operator() (geometry_empty) const
    {
        return geometry_empty();
    }

[pedro-vicente]

mapnik\src\wkb.cpp(124,1): error C2440: 'initializing': cannot convert from 'mapnik::geometry::geometry_empty' to 'mapnik::geometry::geometry'

mapnik::geometry::geometry<double> geom = mapnik::geometry::geometry_empty();

[pedro-vicente]

L:\mapnik\src\wkb.cpp(132,1): error C2679: binary '=': no operator found which takes a right-hand operand of type 'mapbox::geometry::point' (or there is no acceptable conversion)

auto pt = read_point();
 if (!std::isnan(pt.x) && !std::isnan(pt.y))
      geom = std::move(pt);

[pedro-vicente]

L:\mapnik\src\wkb.cpp(136,1): error C2679: binary '=': no operator found which takes a right-hand operand of type 'mapbox::geometry::line_string<double,std::vector>' (or there is no acceptable conversion)

case wkbLineString:
            geom = read_linestring();

[pedro-vicente]

L:\mapnik\src\wkb.cpp(139,1): error C2679: binary '=': no operator found which takes a right-hand operand of type 'mapbox::geometry::polygon<double,std::vector>' (or there is no acceptable conversion)

case wkbPolygon:
            geom = read_polygon();

[pedro-vicente]

L:\mapnik\src\wkb.cpp(145,1): error C2679: binary '=': no operator found which takes a right-hand operand of type 'mapbox::geometry::multi_line_string<double,std::vector>' (or there is no acceptable conversion)

 case wkbMultiLineString:
            geom = read_multilinestring();

[pedro-vicente]

L:\mapnik\src\wkb.cpp(151,1): error C2679: binary '=': no operator found which takes a right-hand operand of type 'mapnik::geometry::geometry_collection<double,std::vector>' (or there is no acceptable conversion)

case wkbGeometryCollection:
            geom = read_collection();

[pedro-vicente]

L:\mapnik\src\twkb.cpp(84,1): error C2440: 'initializing': cannot convert from 'mapnik::geometry::geometry_empty' to 'mapnik::geometry::geometry'

mapnik::geometry::geometry<double> geom = mapnik::geometry::geometry_empty();

[pedro-vicente]

for the 3.0 branch, this is the CMake script used, not complete regarding list of source files

https://github.com/pedro-vicente/mapnik/blob/master/CMakeLists.txt

list of dependencies can be built with

https://github.com/pedro-vicente/mapnik/blob/master/build/bld.bat

https://github.com/pedro-vicente/mapnik/blob/master/build/dep.bat

[pedro-vicente]

for the 2.3 branch , this is a complete CMake script that builds the demo

https://github.com/pedro-vicente/mapnik/blob/2.3.x/CMakeLists.txt

there was only a small change in code needed

https://github.com/pedro-vicente/mapnik/commit/82c6e6c7f7b7c0d049964195282b03e8743e2d62

[am2222]

@pedro-vicente Wow that is great, Is it possible to give some more information about compiling on windows? does it work with MSVC 2015 build tools?

[pedro-vicente]

@am2222 The above that's basically all the information needed to get started:

1. get dependencies and build, example script to build

https://github.com/pedro-vicente/mapnik/blob/master/build/dep.bat

2. Use Cmake to build, example build script bld.bat

mkdir build
cd build
bld.bat

https://github.com/pedro-vicente/mapnik/blob/master/build/bld.bat

with MSVC 2015, there are more building errors. I recently switched to MSVC 2019 from MSVC 2015, very happy about it

[am2222]

@pedro-vicente wow thanks,
Have you tried to install python-mapnik on windows?

[am2222]

@pedro-vicente Can you tell me which dependencies should I download?
I downloaded boost 1.70.1 and Installed that. For ICU I downloaded ICU-4c-64_2 but It faces errors while Installation, I am also using MSVC 2019

[roelandschoukens]

I have downloaded (and built — slow process) all dependencies with vcpkg.

There’s a few errors with Visual Studio 2015 but they are reasonably easy to solve. I’ve got the main library and most input plug-ins: https://github.com/roelandschoukens/mapnik/tree/mapnik-win

[am2222]

@roelandschoukens Hi, thanks I will try to use vcpkg to see how things goes. thanks

[am2222]

@roelandschoukens have you tired to install python wrapper for mapnik as well?

[roelandschoukens]

I tried but that wrapper doesn't appear to be maintained anymore. It cannot be built with the current version of Mapnik.

[am2222]

@roelandschoukens thanks so much, It seems python is lacking a good map rendering engine

[roelandschoukens]

okay, I could fix the errors and now have a working python package. See my python-mapnik fork.

This requires the static library build. I cannot get all exported symbols working on Visual Studio (the problematic ones are static class members).

You must also set up a working mapnik-config program. I don't know how to do that automatically. After finishing the Mapnik build you can get the flags and libraries names you need from the generated Visual Project file.

Some input plugins have DLL dependencies (eg. gdal requires gdal204.dll). These DLLs have to be available via %PATH% when starting python.

[am2222]

@roelandschoukens wow thanks so much it is great to hear that. It was for a while that I was looking for it. About mapnik itself, You built is same as on linux? or you added it into visual studio and build it?

[roelandschoukens]

I’m building the mapnik library using CMake, and the python package using setup.py.

[am2222]

@roelandschoukens thanks so much, I am trying to install dependencies. so far to install libwebp vcpkg can not find opengl32.lib in my sdk folder. I am still looking for it's solution.

[roelandschoukens]

If you don't need webp image format support you can build mapnik without support for it. I haven't implemented an option in the CMake build for that. I guess you have to remove the -DHAVE_WEBP definition.

[am2222]

@roelandschoukens thanks for your help, Actually I was gonna to build it without that format, But interesting part is that I managed to install it using vcpkg but it can not find it.

[am2222]

@roelandschoukens thanks, I managed to start build mapnik but I faced C2664 errors:

mapnik-win\mapnik\include\mapnik/feature.hpp(108,14): error C2664:  'mapnik::geometry::geometry<d
ouble>::geometry(const mapnik::geometry::geometry<double> &)': cannot convert argument 1 from 'mapnik::geometry::geomet
ry_empty' to 'mapbox::util::no_init' (compiling source file mapnik-win\mapnik\src\datasource_cach
e.cpp) [mapnik-win\mapnik\build\mapnik.vcxproj]
mapnik-win\mapnik\include\mapnik/feature.hpp(108,14): error C2664:  'mapnik::geometry::geometry<d
ouble>::geometry(const mapnik::geometry::geometry<double> &)': cannot convert argument 1 from 'mapnik::geometry::geomet
ry_empty' to 'mapbox::util::no_init' (compiling source file mapnik-win\mapnik\src\feature_style_p
rocessor.cpp) [mapnik-win\mapnik\build\mapnik.vcxproj]
mapnik-win\mapnik\include\mapnik/feature.hpp(108,14): error C2664:  'mapnik::geometry::geometry<d
ouble>::geometry(const mapnik::geometry::geometry<double> &)': cannot convert argument 1 from 'mapnik::geometry::geomet
ry_empty' to 'mapbox::util::no_init' (compiling source file mapnik-win\mapnik\src\json\generic_js
on_grammar_x3.cpp) [mapnik-win\mapnik\build\src\json\mapnik-json.vcxproj]

and some c2679

mapnik-win\mapnik\src\wkb.cpp(145,1): error C2679:  binary '=': no operator found which takes a r
ight-hand operand of type 'mapbox::geometry::multi_line_string<double,std::vector>' (or there is no acceptable conversi
on) [mapnik-win\mapnik\build\mapnik.vcxproj]

Where am I doing something wrong?

[am2222]

@roelandschoukens which boost version have you installed? I just found that mapnik is not compatible with boost 1.70 probably the errors which I have faced is due to this issue.

[bipbip1]

Hello,
i also try to compile mapnik on window and expect to be able to bind the result with python3. I am a very beginner in this field and started by cloning the mapnik-windows repositery.
Then i ran vcpkg install boost-locale[icu] boost-regex[icu] boost --triplet x64-windows --recurse (which seems to have been succesfull)
And now i am lost. Should i run configure ? When i try scons do not find the c++ compiler even if visual studio 2019 is installed.
Could someone give me an indication about the path to follow ? In advance thank you.

[mathisloge]

@artemp this can be closed since windows is now supported to be build with cmake.

For anyone coming across this issue, see https://github.com/mapnik/mapnik/blob/master/docs/cmake-usage.md for more information. As long as the vcpkg.json manifsest file isn't in the source tree, a vcpkg.json file can be found here: https://github.com/mapnik/mapnik/blob/cd21256b6b308aad7e8d28b33da150fcec10b585/vcpkg.json

[bartoli]

@pedro-vicente would you happen to still have a clone of your fork with cmake support?

[mathisloge]

You can compile mapnik@master with cmake.

[bartoli]

You can compile mapnik@master with cmake.

Yes, but i needed some cmake scripts that would work for 3.0.x, so wanted to start from an older version

[pedro-vicente]

@pedro-vicente would you happen to still have a clone of your fork with cmake support?

I don't , sorry.