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Merge pull request #23 from bonsai-rx/visualizers-refactor
Refactor visualizers package to improve separation between package specific visualizers and reusable visualizers
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10 changes: 2 additions & 8 deletions
10
....Visualizers/Bonsai.ML.Visualizers.csproj → src/Bonsai.ML.Design/Bonsai.ML.Design.csproj
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,21 +1,15 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
| <PropertyGroup> | ||
| <Title>Bonsai.ML.Visualizers</Title> | ||
| <Title>Bonsai.ML.Design</Title> | ||
| <Description>A package for the Bonsai visual programming language.</Description> | ||
| <PackageTags>Bonsai Rx ML Machine Learning Visualizers</PackageTags> | ||
| <PackageTags>Bonsai Rx ML Machine Learning Design</PackageTags> | ||
| <TargetFrameworks>net472</TargetFrameworks> | ||
| <UseWindowsForms>true</UseWindowsForms> | ||
| </PropertyGroup> | ||
| <ItemGroup> | ||
| <PackageReference Include="Bonsai.Core" Version="2.8.1" /> | ||
| <PackageReference Include="Bonsai.Design" Version="2.8.0" /> | ||
| <PackageReference Include="Bonsai.Vision.Design" Version="2.8.1" /> | ||
| <PackageReference Include="MathNet.Numerics" Version="5.0.0" /> | ||
| <PackageReference Include="OxyPlot.Core" Version="2.1.2" /> | ||
| <PackageReference Include="OxyPlot.WindowsForms" Version="2.1.2" /> | ||
| </ItemGroup> | ||
| <ItemGroup> | ||
| <ProjectReference Include="..\Bonsai.ML.LinearDynamicalSystems\Bonsai.ML.LinearDynamicalSystems.csproj" /> | ||
| <ProjectReference Include="..\Bonsai.ML.HiddenMarkovModels\Bonsai.ML.HiddenMarkovModels.csproj" /> | ||
| </ItemGroup> | ||
| </Project> |
2 changes: 1 addition & 1 deletion
2
src/Bonsai.ML.Visualizers/ColorPalette.cs → src/Bonsai.ML.Design/ColorPalette.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,4 @@ | ||
| namespace Bonsai.ML.Visualizers | ||
| namespace Bonsai.ML.Design | ||
| { | ||
| internal enum ColorPalette | ||
| { | ||
|
|
||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| using MathNet.Numerics.LinearAlgebra; | ||
| using System; | ||
|
|
||
| namespace Bonsai.ML.Design | ||
| { | ||
| /// <summary> | ||
| /// Provides helper methods to compute ellipse parameters from a covariance matrix. | ||
| /// </summary> | ||
| public static class EllipseHelper | ||
| { | ||
| /// <summary> | ||
| /// Computes the ellipse parameters from the specified covariance matrix. | ||
| /// </summary> | ||
| /// <param name="xVar">The variance of the x axis.</param> | ||
| /// <param name="yVar">The variance of the y axis.</param> | ||
| /// <param name="xyCov">The covariance between the x and y axes.</param> | ||
| public static EllipseParameters GetEllipseParameters(double xVar, double yVar, double xyCov) | ||
| { | ||
| var covariance = Matrix<double>.Build.DenseOfArray(new double[,] { | ||
| { | ||
| xVar, | ||
| xyCov | ||
| }, | ||
| { | ||
| xyCov, | ||
| yVar | ||
| }, | ||
| }); | ||
|
|
||
| var evd = covariance.Evd(); | ||
| var evals = evd.EigenValues.Real(); | ||
| evals = evals.PointwiseAbsoluteMaximum(0); | ||
| var evecs = evd.EigenVectors; | ||
|
|
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| double angle = Math.Atan2(evecs[1, 0], evecs[0, 0]); | ||
|
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| return new EllipseParameters | ||
| { | ||
| Angle = angle, | ||
| MajorAxis = Math.Sqrt(evals[0]), | ||
| MinorAxis = Math.Sqrt(evals[1]), | ||
| }; | ||
| } | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Represents the parameters of an ellipse. | ||
| /// </summary> | ||
| public class EllipseParameters | ||
| { | ||
| /// <summary> | ||
| /// Gets or sets the angle of the ellipse. | ||
| /// </summary> | ||
| public double Angle { get; set; } | ||
|
|
||
| /// <summary> | ||
| /// Gets or sets the major axis of the ellipse. | ||
| /// </summary> | ||
| public double MajorAxis { get; set; } | ||
|
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||
| /// <summary> | ||
| /// Gets or sets the minor axis of the ellipse. | ||
| /// </summary> | ||
| public double MinorAxis { get; set; } | ||
| } | ||
| } |
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