ampscm / sharpproj

.Net / C# wrapping of PROJ

SharpProj - Providing OSGEO PROJ for .Net (Core)

Use the real OSGeo PROJ implementation, implemented the .Net way, reusable and available as simple to use package on NuGet.

https://www.nuget.org/packages/SharpProj/

Usage

using SharpProj;

using var rd = CoordinateReferenceSystem.CreateFromEpsg(28992);
using var wgs84 = CoordinateReferenceSystem.CreateFromEpsg(4326);

var area = rd.UsageArea;
Assert.AreEqual("Netherlands - onshore, including Waddenzee, Dutch Wadden Islands and 12-mile offshore coastal zone.", area.Name);

using (var t = CoordinateTransform.Create(rd, wgs84))
{
    var r = t.Apply(new PPoint(155000, 463000));
    Assert.AreEqual(new PPoint(52.155, 5.387), r.ToXY(3)); // Round to 3 decimals for easy testing
}

Building SharpProj

Setup build environment using:

mkdir dev
cd dev
git clone https://github.com/Microsoft/vcpkg.git
git clone https://github.com/AmpScm/SharpProj.git
cd vcpkg
bootstrap-vcpkg.bat
vcpkg install proj[core,tiff]:x86-windows-static-md proj[core,tiff]:x64-windows-static-md tiff[core,lzma,zip]:x86-windows-static-md tiff[core,lzma,zip]:x64-windows-static-md
cd ..

The explicit feature selection here explicitly builds PROJ without the builtin network support to remove the curl dependency. It also disables 'jpeg' support in tiff. This shrinks the library and allows configuring http(s) the .NET way. The network requests are just forwared to the .Net WebClient class using a bit of code in SharpProj (see ProjNetworkHandler.cpp).

This script handles the assumption inside SharpProj that the library and header files required can be found in ../vcpkg/installed/. If you choose a different layout you will need a custom setup later on. But with just this you are now able to build using either Visual Studio 2019 or 2022.

sharpproj's Issues

Cannot add NuGet package to a .NET project

Hi,

I would like to test this project as an alternative to ProjNet. It looks quite impressing. However, I don't seem to be able to add SharpProj NuGet package to any .NET project. I tried a couple of versions of .NET Framework but it always gives me the following error message:

Could not install package 'SharpProj.Core 8.1.26'. You are trying to install this package into a project that targets '.NETFramework,Version=v4.6', but the package does not contain any assembly references or content files that are compatible with that framework. For more information, contact the package author.

I tried .NET Framework 4.5, 4.6, 4.7.2 and 4.8. I also tried .NET 5 but no luck. Can you please advise what .NET Framework is the package set up with? I checked the .DLL in the package and it seems to be built for .NET Framework 4.6 but adding it via NuGet still fails.

Thanks,
Pavel

FileNotFoundException in .net 6

Hi!

I want to use SharpProj.NetTopologySuite and i included the SharpProj and SharpProj.NetTopologySuite Nuget Packages in my .net 6 Project.
At runtime i get System.IO.FileNotFoundException Could not load file or assembly 'SharpProj, Version=8.2001.128.0, Culture=neutral, PublicKeyToken=3a930e679d9a0873'.

What am i doing wrong?

SharpProj for platform target x64

Hi.
I'm trying to use this library in an ArcGIS Pro Add-in. The ArcGIS Pro SDK supports only x64, and I'm not able to use this library now. I first got the FileNotFoundException mentioned in #25 and after adding

<ItemGroup> <Content Include="$(NetCoreTargetingPackRoot)\Microsoft.NETCore.App.Host.$(NETCoreSdkRuntimeIdentifier)\$(BundledNETCoreAppPackageVersion)\runtimes\$(NETCoreSdkRuntimeIdentifier)\native\ijwhost.dll" Link="ijwhost.dll"> <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory> </Content> </ItemGroup>

and

<PropertyGroup> <UseIJWHost Condition="'$(TargetFramework)' == 'net8.0'">true</UseIJWHost> </PropertyGroup>

I now get an error saying

System.BadImageFormatException: Could not load file or assembly 'C:...\net8.0\runtimes\win-x64\lib\netcoreapp\SharpProj.dll'. Format of the executable (.exe) or library (.dll) is invalid.

Does SharpProj support x64, or are you going to add this support any time soon?

Unable to use nuget package due to load error

When trying to run an app with this nuget package, I receive the following error: System.BadImageFormatException: 'Could not load file or assembly 'SharpProj, Version=8.2001.106.0, Culture=neutral, PublicKeyToken=3a930e679d9a0873'. An attempt was made to load a program with an incorrect format.'

I'm using the package in a small console application. It is .Net 5

I have tried version 8.2001.106.0 down to 8.1.26...

FileNotFoundException SharpProj.dll for Microsoft.NET.Sdk.Web

We have SharpProj working in unit test and console .net6 projects using Microsoft.NET.Sdk

When we try to run it in an api using Microsoft.NET.Sdk.Web then we get the following error (even though the dll is found in the same place in bin as the console app.

Could not load file or assembly 'SharpProj, Version=9.2000.234.0, Culture=neutral, PublicKeyToken=3a930e679d9a0873'. The system cannot find the file specified.

looking at the output pane in VS can see this:

Exception thrown: 'System.IO.FileNotFoundException' in System.Private.CoreLib.dll

Copying the appropriate dll using post build scripts does not work either, or forcing ijwhost.dll.