Pure.Chart.Model

Concrete implementations of the chart domain model for the Pure ecosystem — immutable, AOT-compatible records implementing the Pure.Chart.Model.Abstractions contracts.

Overview

Pure.Chart.Model provides sealed record implementations of the chart abstractions defined in Pure.Chart.Model.Abstractions. Each type is immutable by construction, taking all values through its constructor, and depends on IString from Pure.Primitives.Abstractions for all string-valued properties.

Types

Type	Implements	Description
Chart	IChart	Root chart record — holds title, description, type, two axes, and a series collection
Axis	IAxis	Single axis with a legend label
ChartSeries	IChartSeries	A data series with a legend and source column names for each axis
ChartType	IChartType	Named chart type (e.g. bar, line, pie)

All types reside in the Pure.Chart.Model namespace.

Design Principles

• Immutable — all properties are init-only; values are set once in the constructor and never changed.
• Composable — Chart aggregates IAxis, IChartType, and IEnumerable<IChartSeries>, all of which are abstractions, so any implementation can be substituted.
• AOT-compatible — sealed records with no reflection or dynamic dispatch; the package is fully compatible with Native AOT.

Dependencies

• Pure.Chart.Model.Abstractions — interfaces IChart, IAxis, IChartSeries, and IChartType that this package implements
• Pure.Primitives.Abstractions — base primitive interfaces; IString is used for all string-valued properties

Target Frameworks

• .NET 7
• .NET 8
• .NET 9
• .NET 10

Installation

dotnet add package Pure.Chart.Model

Usage

using Pure.Chart.Model;
using Pure.Primitives.Abstractions.String;

// Assuming MyString : IString is provided by your primitives implementation
IString title       = new MyString("Sales 2024");
IString description = new MyString("Monthly revenue by region");
IString typeName    = new MyString("bar");
IString xLegend     = new MyString("Month");
IString yLegend     = new MyString("Revenue");
IString seriesName  = new MyString("EMEA");
IString xSource     = new MyString("month_col");
IString ySource     = new MyString("revenue_col");

var chart = new Chart(
    title,
    description,
    new ChartType(typeName),
    new Axis(xLegend),
    new Axis(yLegend),
    [new ChartSeries(seriesName, xSource, ySource)]
);