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SharpMath 2.0: .NET 10, immutable geometry, cross-platform canvas renderers - #10
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Vectors, points and matrices become readonly structs with System.Numerics vocabulary, closed-form determinants and inverses, column-vector convention and tolerance-based predicates. Adds MatrixMxN, LineSegment2D, general-form Line2D, canonical Line3D and intersection results. Removes Analysis, MathHelper, FloatingNumber and the generic matrix/vector utilities.
Recursive-descent parser with variables, parse-once/evaluate-many, implicit multiplication, comma-separated arguments, scientific notation, modulo, factorial, more built-ins and per-instance ExpressionContext. Every syntax error is a ParserException with a position.
The view records the canvas on the UI thread into a display list and replays it with the Skia renderer on Avalonia's render thread.
CsCheck checks algebraic invariants of matrices, geometry and the parser. Allocation tests guard the hot paths; evaluating with a named variable no longer allocates a closure. eng/CheckCoverage.cs enforces line coverage.
…ples The perspective demo now uses the column-vector convention, LookAt and the right-handed projection. The export sample renders the README images.
Polygon.Contains caches the largest coordinate of the polygon and computes the border tolerance once per call instead of once per edge; the function sampler reuses its buffers, so rendering no longer allocates per frame.
… Linux and macOS The outdated 1.x screenshots in the repository root are replaced by the images the export sample generates in doc/images.
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SharpMath 2.0 is a rewrite for .NET 10 (C# 14). It is a breaking release; CHANGELOG.md lists every change and works as a migration guide from 1.x.
Highlights
SharpMath(no dependencies),SharpMath.Canvas(model + SVG),SharpMath.Canvas.Skia,SharpMath.Canvas.WinForms(GDI+),SharpMath.Canvas.Avalonia.MatrixMxN(LU),Line2Din general form,LineSegment2D, canonicalLine3D, intersection results.ExpressionContext, allocation-free evaluation, error positions.IDrawingContextwith SVG, SkiaSharp and GDI+ renderers, WinForms and Avalonia controls, PNG/SVG export.Inverse()returning the identity andPolygon ==overflowing the stack.Verification
Fixes #3
Refs #9, #5