Separate svg and gcode code from FormsUI

.github/workflows/dotnet-core-desktop.yml

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+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+# This workflow will build, test, sign and package a WPF or Windows Forms desktop application
+# built on .NET Core.
+# To learn how to migrate your existing application to .NET Core,
+# refer to https://docs.microsoft.com/en-us/dotnet/desktop-wpf/migration/convert-project-from-net-framework
+#
+# To configure this workflow:
+#
+# 1. Configure environment variables
+# GitHub sets default environment variables for every workflow run.
+# Replace the variables relative to your project in the "env" section below.
+#
+# 2. Signing
+# Generate a signing certificate in the Windows Application
+# Packaging Project or add an existing signing certificate to the project.
+# Next, use PowerShell to encode the .pfx file using Base64 encoding
+# by running the following Powershell script to generate the output string:
+#
+# $pfx_cert = Get-Content '.\SigningCertificate.pfx' -Encoding Byte
+# [System.Convert]::ToBase64String($pfx_cert) | Out-File 'SigningCertificate_Encoded.txt'
+#
+# Open the output file, SigningCertificate_Encoded.txt, and copy the
+# string inside. Then, add the string to the repo as a GitHub secret
+# and name it "Base64_Encoded_Pfx."
+# For more information on how to configure your signing certificate for
+# this workflow, refer to https://github.com/microsoft/github-actions-for-desktop-apps#signing
+#
+# Finally, add the signing certificate password to the repo as a secret and name it "Pfx_Key".
+# See "Build the Windows Application Packaging project" below to see how the secret is used.
+#
+# For more information on GitHub Actions, refer to https://github.com/features/actions
+# For a complete CI/CD sample to get started with GitHub Action workflows for Desktop Applications,
+# refer to https://github.com/microsoft/github-actions-for-desktop-apps
+
+name: .NET Core Desktop
+
+on:
+  #push:
+  #  branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+
+  build:
+
+    strategy:
+      matrix:
+        configuration: [Release]
+
+    runs-on: windows-latest  # For a list of available runner types, refer to
+                             # https://help.github.com/en/actions/reference/workflow-syntax-for-github-actions#jobsjob_idruns-on
+
+    env:
+      Solution_Name: LaserGRBL.sln                              # Replace with your solution name, i.e. MyWpfApp.sln.
+      #Test_Project_Path: your-test-project-path                 # Replace with the path to your test project, i.e. MyWpfApp.Tests\MyWpfApp.Tests.csproj.
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+
+    # Install the .NET Core workload
+    - name: Install .NET Core
+      uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: 3.1.101
+
+    # Add  MSBuild to the PATH: https://github.com/microsoft/setup-msbuild
+    - name: Setup MSBuild.exe
+      uses: microsoft/setup-msbuild@2008f912f56e61277eefaac6d1888b750582aa16
+
+    # Execute all unit tests in the solution
+    #- name: Execute unit tests
+    #  run: dotnet test

.github/workflows/dotnet-core.yml

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+name: .NET Core
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Setup .NET Core
+      uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: 3.1.301
+    - name: Install dependencies
+      run: | 
+        dotnet restore ./CsPotrace/CsPotrace.csproj
+        dotnet restore ./Cyotek.Drawing/Cyotek.Drawing.csproj
+        dotnet restore ./LaserGRBL.Lib/LaserGRBL.Lib.csproj
+        dotnet restore ./LaserGRBL.CmdLine/LaserGRBL.CmdLine.csproj
+        dotnet restore ./CsPotrace.UnitTest/CsPotrace.UnitTest.csproj
+    - name: Build
+      run: dotnet build LaserGRBL.CmdLine --configuration Release --no-restore
+    - name: Test
+      run: dotnet test --no-restore --verbosity normal

CsPotrace.UnitTest/BezierToBiarcTests/ArcTests.cs

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+using CsPotrace.BezierToBiarc;
+using Newtonsoft.Json.Bson;
+using System;
+using System.Collections.Generic;
+using System.Numerics;
+using System.Text;
+using Xunit;
+
+namespace CsPotrace.UnitTest.BezierToBiarcTests
+{
+    // A lot of this tests were implemented long after the library was in-use,
+    // My first goal is to asssure that what was woking will continue working the SAME way
+    // If any bug appears, it will be frozen broken in this tests and will be fixed later
+
+    public class ArcTests
+    {
+        // Is already stated at Arc class that are redundant information
+
+        const int floatPrecision = 6;
+
+        [Fact]
+        public void CsPotrace_Arc_EmptyCtorIsZero()
+        {
+            var arc = new Arc();
+            Assert.Equal(0f, arc.C.X);
+            Assert.Equal(0f, arc.C.Y);
+
+            Assert.Equal(0f, arc.r);
+            Assert.Equal(0f, arc.startAngle);
+            Assert.Equal(0f, arc.sweepAngle);
+
+            Assert.Equal(0f, arc.P1.X);
+            Assert.Equal(0f, arc.P1.Y);
+            Assert.Equal(0f, arc.P2.X);
+            Assert.Equal(0f, arc.P2.Y);
+        }
+        [Fact]
+        public void CsPotrace_Arc_EmptyCtorIsNonZero()
+        {
+            var arc = new Arc(new Vector2(0.1f, 0.2f),
+                              0.3f, 0.4f, 0.5f,
+                              new Vector2(0.6f, 0.7f),
+                              new Vector2(0.8f, 0.9f));
+
+            Assert.Equal(0.1f, arc.C.X);
+            Assert.Equal(0.2f, arc.C.Y);
+
+            Assert.Equal(0.3f, arc.r);
+            Assert.Equal(0.4f, arc.startAngle);
+            Assert.Equal(0.5f, arc.sweepAngle);
+
+            Assert.Equal(0.6f, arc.P1.X);
+            Assert.Equal(0.7f, arc.P1.Y);
+            Assert.Equal(0.8f, arc.P2.X);
+            Assert.Equal(0.9f, arc.P2.Y);
+        }
+
+        [Fact]
+        public void CsPotrace_Arc_IsClockwise()
+        {
+            Arc arc = new Arc();
+            // as today, zero is NOT clockwise
+            Assert.False(arc.IsClockwise);
+
+            arc = new Arc(Vector2.Zero, 0, 0, 1, Vector2.Zero, Vector2.Zero);
+            Assert.True(arc.IsClockwise);
+
+            arc = new Arc(Vector2.Zero, 0, 0, -1, Vector2.Zero, Vector2.Zero);
+            Assert.False(arc.IsClockwise);
+        }
+
+        [Fact]
+        public void CsPotrace_Arc_PoitAt()
+        {
+            var unity = unityCircle();
+            // 0
+            Vector2Equal(unity.P1, unity.PointAt(0f));
+            // 2Pi
+            Vector2Equal(unity.P2, unity.PointAt(1f));
+            // 1Pi
+            Vector2Equal(new Vector2(0, 1), unity.PointAt(0.25f));
+            // 3Pi/2
+            Vector2Equal(new Vector2(0, -1), unity.PointAt(0.75f));
+        }
+        [Fact]
+        public void CsPotrace_Arc_Length()
+        {
+            var unity = unityCircle();
+            Assert.Equal(2 * Math.PI, unity.Length, floatPrecision);
+        }
+        [Fact]
+        public void CsPotrace_Arc_BiggerLength()
+        {
+            // 10x bigger, use less precision !!
+            var unity = biggerCircle();
+            Assert.Equal(20 * Math.PI, unity.Length, 4);
+        }
+        [Fact]
+        public void CsPotrace_Arc_HalfLength()
+        {
+            var unity = new Arc(C: Vector2.Zero,
+                                r: 1,
+                                startAngle: 0,
+                                sweepAngle: (float)(Math.PI), // 180deg
+                                P1: new Vector2(1, 0),
+                                P2: new Vector2(-1, 0));
+
+            Assert.Equal(Math.PI, unity.Length, floatPrecision);
+        }
+        [Fact]
+        public void CsPotrace_Arc_LinearLength()
+        {
+            var unity = unityCircle(); // Unity Circle has a ZERO LinearLength
+            Assert.Equal(0, unity.LinearLength);
+        }
+        [Fact]
+        public void CsPotrace_Arc_HalfArcLinearLength()
+        {
+            var unity = new Arc(C: Vector2.Zero,
+                                r: 1,
+                                startAngle: 0,
+                                sweepAngle: (float)(Math.PI), // 180deg
+                                P1: new Vector2(1, 0),
+                                P2: new Vector2(-1, 0));
+            Assert.Equal(2, unity.LinearLength); // From -1 to 1
+        }
+        [Fact]
+        public void CsPotrace_Arc_TranslatedHalfArcLinearLength()
+        {
+            var unity = new Arc(C: new Vector2(1, 1), // translated
+                                r: 1,
+                                startAngle: 0,
+                                sweepAngle: (float)(Math.PI), // 180deg
+                                P1: new Vector2(1, 0),
+                                P2: new Vector2(-1, 0));
+            Assert.Equal(2, unity.LinearLength); // From -1 to 1
+        }
+
+        private static void Vector2Equal(Vector2 v1, Vector2 v2)
+        {
+            Assert.Equal(v1.X, v2.X, floatPrecision);
+            Assert.Equal(v1.Y, v2.Y, floatPrecision);
+        }
+
+        private static Arc unityCircle()
+        {
+            return new Arc(C: Vector2.Zero,
+                           r: 1,
+                           startAngle: 0,
+                           sweepAngle: (float)(2 * Math.PI), // 360deg
+                           P1: new Vector2(1, 0),
+                           P2: new Vector2(1, 0));
+        }
+        private static Arc biggerCircle()
+        {
+            return new Arc(C: Vector2.Zero,
+                           r: 10,
+                           startAngle: 0,
+                           sweepAngle: (float)(2 * Math.PI), // 360deg
+                           P1: new Vector2(10, 0),
+                           P2: new Vector2(10, 0));
+        }
+    }
+}