Updated so it will run with .net standard 2.0

Author: Martin Boje Carpentier

.github/workflows/ci-build.yml

@@ -24,6 +24,7 @@ jobs:
         with:
           dotnet-version: |
             3.1.x
+            4.6.x
             5.0.x
             6.0.x
       - name: Install dependencies

src/GeoJSON.Text.Test.Unit/CoordinateReferenceSystem/DefaultCrsTests.cs

@@ -44,8 +44,8 @@ public void Can_Deserialize_CRS_issue_89()
         public void Can_Serialize_CRS_issue_89()
         {
             var expected =
-                "{\"type\":\"Point\",\"coordinates\":[34.56,12.34],\"crs\":{\"properties\":{\"name\":\"TEST NAME\"},\"type\":\"name\"}}";
-            var point = new Point(new Position(12.34, 34.56)) { CRS = new NamedCRS("TEST NAME") };
+                "{\"type\":\"Point\",\"coordinates\":[34.57,12.35],\"crs\":{\"properties\":{\"name\":\"TEST NAME\"},\"type\":\"name\"}}";
+            var point = new Point(new Position(12.35, 34.57)) { CRS = new NamedCRS("TEST NAME") };
 
             var json = JsonSerializer.Serialize(point);
 
@@ -57,8 +57,8 @@ public void Can_Serialize_CRS_issue_89()
         public void Can_Serialize_DefaultCRS_issue_89()
         {
             var expected =
-                "{\"type\":\"Point\",\"coordinates\":[34.56,12.34],\"crs\":{\"properties\":{\"name\":\"urn:ogc:def:crs:OGC::CRS84\"},\"type\":\"name\"}}";
-            var point = new Point(new Position(12.34, 34.56)) { CRS = new NamedCRS("urn:ogc:def:crs:OGC::CRS84") };
+                "{\"type\":\"Point\",\"coordinates\":[34.57,12.35],\"crs\":{\"properties\":{\"name\":\"urn:ogc:def:crs:OGC::CRS84\"},\"type\":\"name\"}}";
+            var point = new Point(new Position(12.35, 34.57)) { CRS = new NamedCRS("urn:ogc:def:crs:OGC::CRS84") };
 
             var json = JsonSerializer.Serialize(point);
 

src/GeoJSON.Text.Test.Unit/GeoJSON.Text.Test.Unit.csproj

@@ -4,7 +4,7 @@
     <ProjectGuid>{6C93B314-9208-4684-B873-172F7EC81689}</ProjectGuid>
     <RootNamespace>GeoJSON.Text.Tests</RootNamespace>
     <AssemblyName>GeoJSON.Text.Tests</AssemblyName>
-    <TargetFrameworks>netcoreapp3.1;net5;net6</TargetFrameworks>
+    <TargetFrameworks>net462;netcoreapp3.1;net5;net6</TargetFrameworks>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
   </PropertyGroup>
   <ItemGroup>
@@ -66,6 +66,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="NUnit" Version="3.13.2" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.1.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />

src/GeoJSON.Text/DecimalTenDecimalPlaceComparer.cs

@@ -0,0 +1,26 @@
+// Copyright © Joerg Battermann 2014, Matt Hunt 2017
+
+using System;
+using System.Collections.Generic;
+
+namespace GeoJSON.Text
+{
+    /// <summary>
+    ///     Compares doubles for equality.
+    /// </summary>
+    /// <remarks>
+    ///     10 decimal places equates to accuracy to 11.1 μm.
+    /// </remarks>
+    public class DoubleTenDecimalPlaceComparer : IEqualityComparer<double>
+    {
+        public bool Equals(double x, double y)
+        {
+            return Math.Abs(x - y) < 0.0000000001;
+        }
+
+        public int GetHashCode(double obj)
+        {
+            return obj.GetHashCode();
+        }
+    }
+}

src/GeoJSON.Text/DoubleTenDecimalPlaceComparer.cs

@@ -11,14 +11,14 @@ namespace GeoJSON.Text
     /// <remarks>
     ///     10 decimal places equates to accuracy to 11.1 μm.
     /// </remarks>
-    public class DoubleTenDecimalPlaceComparer : IEqualityComparer<double>
+    public class DecimalTenDecimalPlaceComparer : IEqualityComparer<decimal>
     {
-        public bool Equals(double x, double y)
+        public bool Equals(decimal x, decimal y)
         {
-            return Math.Abs(x - y) < 0.0000000001;
+            return Math.Abs(x - y) < 0.0000000001m;
         }
 
-        public int GetHashCode(double obj)
+        public int GetHashCode(decimal obj)
         {
             return obj.GetHashCode();
         }

src/GeoJSON.Text/GeoJSON.Text.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
 	<PropertyGroup>
-		<TargetFrameworks>netcoreapp3.1;net5;net6</TargetFrameworks>
+		<TargetFrameworks>netstandard2.0</TargetFrameworks>
 		<LangVersion>Latest</LangVersion>
 		<Description>.Net types for the GeoJSON RFC to be used with System.Text.Json</Description>
 		<Authors>Matt Hunt</Authors>
@@ -20,6 +20,7 @@
 		<SymbolPackageFormat>snupkg</SymbolPackageFormat>
 		<EmbedUntrackedSources>true</EmbedUntrackedSources>
 		<PublishRepositoryUrl>true</PublishRepositoryUrl>
+		
 	</PropertyGroup>
 
 	<ItemGroup>