Processing time by workload

Create a console project, add the ChartForgeX package, and replace Program.cs with this source. Run it to write SVG, PNG and HTML with the default system fonts.

For the same typography as the gallery, download the gallery-font recipe and copy the gallery’s fonts directory beside your program.

using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using ChartForgeX.Core;
using ChartForgeX.Primitives;
using ChartForgeX.Rendering;
using ChartForgeX.Themes;
using ChartForgeX.Topology;
using ChartForgeX.Typography;
using ChartForgeX.VisualArtifacts;
using ChartForgeX.VisualBlocks;

var mode = VisualThemeMode.Light;
var theme = VisualTheme.Graphite();
var model = ScatterPositionedColorScaleRecipe.Create("compact-positioned-color-scale", mode);
var context = new VisualRenderContext(
    new VisualLayoutOptions(new VisualSize(360, 360)), theme, mode,
    new VisualFrame("Processing time by workload", "Absolute color anchors use uneven numeric intervals", showLegend: null, showSurface: false));
var prepared = model.Prepare(context);
File.WriteAllText("visual.svg", prepared.ToSvg());
File.WriteAllBytes("visual.png", prepared.ToPng());
File.WriteAllText("visual.html", prepared.ToArtifact("example", VisualArtifactKind.Chart).ToHtmlPage());

/// <summary>Maps observed temperatures to explicitly positioned color stops.</summary>
public static class ScatterPositionedColorScaleRecipe {
    /// <summary>Creates the selected example without choosing a renderer or export backend.</summary>
    public static Chart Create(string variant = "positioned-color-scale", VisualThemeMode mode = VisualThemeMode.Light) {
        if (variant is not ("positioned-color-scale" or "compact-positioned-color-scale")) throw new ArgumentOutOfRangeException(nameof(variant));
        return PositionedColorScale(mode).WithValueFormat(ChartValueFormat.Number("0.##", CultureInfo.InvariantCulture));
    }

    private static Chart PositionedColorScale(VisualThemeMode mode) {
        var colors = VisualTheme.Graphite().Resolve(mode);
        var temperatures = new double?[] { -30, -20, -3, 0, 2.5, 5, 10, 22.5, 40, 55, null, null };
        var minutes = new[] { 24d, 36, 45, 20, 32, 50, 28, 41, 18, 35, 22, 48 };
        var recorded = ChartSeries.CreateScatter(new ChartSeriesId("recorded-batches"), "Recorded batches", temperatures.Select((value, index) =>
            new ChartPoint((index + 1) * 8, minutes[index]).WithColorValue(value)));
        recorded.WithColorScale(TemperatureScale().WithNoDataColor(colors.Border));
        return NumericAxes().ConfigureLabels(labels => { labels.Color = "Temperature (°C)"; labels.NoData = "Not sampled"; }).AddSeries(recorded);
    }

    private static Chart NumericAxes() => Chart.Create().WithXAxis("Batch size (items)").WithYAxis("Processing time (minutes)")
        .WithXAxisBounds(0, 100).WithYAxisBounds(0, 60).WithDataLabels(false);

    private static ChartColorScale TemperatureScale() => ChartColorScale.Diverging(new[] {
        new ChartColorStop(-20, ChartColor.FromHex("#2166AC")), new ChartColorStop(-3, ChartColor.FromHex("#67A9CF"))
    }, new ChartColorStop(0, ChartColor.FromHex("#D1D5DB")), new[] {
        new ChartColorStop(5, ChartColor.FromHex("#D9A441")), new ChartColorStop(40, ChartColor.FromHex("#B2182B"))
    }).WithLabels("Cold", "Freezing", "Warm");
}

using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using ChartForgeX.Core;
using ChartForgeX.Primitives;
using ChartForgeX.Rendering;
using ChartForgeX.Themes;
using ChartForgeX.Topology;
using ChartForgeX.Typography;
using ChartForgeX.VisualArtifacts;
using ChartForgeX.VisualBlocks;

var mode = VisualThemeMode.Dark;
var theme = VisualTheme.Graphite();
var model = ScatterPositionedColorScaleRecipe.Create("compact-positioned-color-scale", mode);
var context = new VisualRenderContext(
    new VisualLayoutOptions(new VisualSize(360, 360)), theme, mode,
    new VisualFrame("Processing time by workload", "Absolute color anchors use uneven numeric intervals", showLegend: null, showSurface: false));
var prepared = model.Prepare(context);
File.WriteAllText("visual.svg", prepared.ToSvg());
File.WriteAllBytes("visual.png", prepared.ToPng());
File.WriteAllText("visual.html", prepared.ToArtifact("example", VisualArtifactKind.Chart).ToHtmlPage());

/// <summary>Maps observed temperatures to explicitly positioned color stops.</summary>
public static class ScatterPositionedColorScaleRecipe {
    /// <summary>Creates the selected example without choosing a renderer or export backend.</summary>
    public static Chart Create(string variant = "positioned-color-scale", VisualThemeMode mode = VisualThemeMode.Light) {
        if (variant is not ("positioned-color-scale" or "compact-positioned-color-scale")) throw new ArgumentOutOfRangeException(nameof(variant));
        return PositionedColorScale(mode).WithValueFormat(ChartValueFormat.Number("0.##", CultureInfo.InvariantCulture));
    }

    private static Chart PositionedColorScale(VisualThemeMode mode) {
        var colors = VisualTheme.Graphite().Resolve(mode);
        var temperatures = new double?[] { -30, -20, -3, 0, 2.5, 5, 10, 22.5, 40, 55, null, null };
        var minutes = new[] { 24d, 36, 45, 20, 32, 50, 28, 41, 18, 35, 22, 48 };
        var recorded = ChartSeries.CreateScatter(new ChartSeriesId("recorded-batches"), "Recorded batches", temperatures.Select((value, index) =>
            new ChartPoint((index + 1) * 8, minutes[index]).WithColorValue(value)));
        recorded.WithColorScale(TemperatureScale().WithNoDataColor(colors.Border));
        return NumericAxes().ConfigureLabels(labels => { labels.Color = "Temperature (°C)"; labels.NoData = "Not sampled"; }).AddSeries(recorded);
    }

    private static Chart NumericAxes() => Chart.Create().WithXAxis("Batch size (items)").WithYAxis("Processing time (minutes)")
        .WithXAxisBounds(0, 100).WithYAxisBounds(0, 60).WithDataLabels(false);

    private static ChartColorScale TemperatureScale() => ChartColorScale.Diverging(new[] {
        new ChartColorStop(-20, ChartColor.FromHex("#2166AC")), new ChartColorStop(-3, ChartColor.FromHex("#67A9CF"))
    }, new ChartColorStop(0, ChartColor.FromHex("#D1D5DB")), new[] {
        new ChartColorStop(5, ChartColor.FromHex("#D9A441")), new ChartColorStop(40, ChartColor.FromHex("#B2182B"))
    }).WithLabels("Cold", "Freezing", "Warm");
}