熱圖

熱圖（英文：heat map）係地圖嘅一種。一幅熱圖會有個相應嘅變數 $x$ ，並且用色水光度顯示嗰個變數喺地圖上每一忽幾高－For 地圖上每一點，嗰點嘅光度同嗰點嘅 $x$ 數值成正比。

例：一幅顯示一隻網上遊戲入面啲玩家死亡次數嘅熱地圖，會顯示出遊戲地圖每一忽有幾多玩家喺嗰個位死過（ $x$ 係「玩家喺嗰度死亡嘅次數」），愈多玩家死過嘅地點色水會愈淺，令睇嘅人一眼睇得出數據係點嘅樣^[1]。

想像以下嘅碼^[2]：

public struct HeatPoint // 每一個 heat point 都有 X、Y（兩個座標表示位置）同 intensity 三個數值。
{
    public int X;
    public int Y;
    public byte Intensity;
    public HeatPoint(int iX, int iY, byte bIntensity)
    {
        X = iX;
        Y = iY;
        Intensity = bIntensity;
    }
}

private Bitmap CreateIntensityMask(Bitmap bSurface, List<HeatPoint> aHeatPoints)
{
    Graphics DrawSurface = Graphics.FromImage(bSurface);
    DrawSurface.Clear(Color.White); // 將背景設做白色
    foreach (HeatPoint DataPoint in aHeatPoints) // Foreach heat point，畫一個點。
    {
        DrawHeatPoint(DrawSurface, DataPoint, 25); // DrawHeatPoint 呢個子程序大致上就係「按比例計出呢一點要有幾光」
    }
    return bSurface;
}

有啲類型嘅熱地圖會一嘢顯示幾個變數嘅數值，呢啲熱地圖可以用嚟分析一啲唔係單一變數可以反映到嘅嘢，例如將「玩家移動軌跡」同「玩家死亡次數」同時顯示喺一幅熱地圖上嘅話可以清楚噉顯示出玩家普遍嘅遊戲流程（喺邊開始玩、經過乜地方同喺邊度死亡）^[3]。

睇埋

遊戲分析

攷

↑ Wilkinson, Leland; Friendly, Michael (May 2009). "The History of the Cluster Heat Map". The American Statistician. 63 (2): 179–184.
↑ Creating Heat Maps with C# .NET.
↑ Canossa, A., Drachen, A., & Sørensen, J. R. M. (2011, June). Arrrgghh!!! blending quantitative and qualitative methods to detect player frustration. In Proceedings of the 6th international conference on foundations of digital games (pp. 61-68).

[1] Wilkinson, Leland; Friendly, Michael (May 2009). "The History of the Cluster Heat Map". The American Statistician. 63 (2): 179–184.

[2] Creating Heat Maps with C# .NET.

[3] Canossa, A., Drachen, A., & Sørensen, J. R. M. (2011, June). Arrrgghh!!! blending quantitative and qualitative methods to detect player frustration. In Proceedings of the 6th international conference on foundations of digital games (pp. 61-68).

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