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优化图表性能

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monitor1394
2026-05-20 22:13:04 +08:00
parent 10d67cff41
commit 2ee94acd30
12 changed files with 780 additions and 154 deletions
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61
Runtime/Serie/SerieContext.cs
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@@ -29,6 +29,67 @@ namespace XCharts.Runtime
public class SerieContext
{
[System.NonSerialized] internal double[] cachedMin = new double[3] { double.MaxValue, double.MaxValue, double.MaxValue };
[System.NonSerialized] internal double[] cachedMax = new double[3] { double.MinValue, double.MinValue, double.MinValue };
[System.NonSerialized] internal bool[] cacheValid = new bool[3] { false, false, false };
[System.NonSerialized] internal Dictionary<string, double[]> dataZoomMinMaxCache = new Dictionary<string, double[]>();
internal void InvalidateMinMaxCache()
{
for (int i = 0; i < cacheValid.Length; i++)
cacheValid[i] = false;
cachedMin[0] = cachedMin[1] = cachedMin[2] = double.MaxValue;
cachedMax[0] = cachedMax[1] = cachedMax[2] = double.MinValue;
dataZoomMinMaxCache.Clear();
}
internal bool TryGetCachedMinMax(int dimension, out double minValue, out double maxValue)
{
minValue = 0; maxValue = 0;
if (dimension < 0 || dimension > 2) return false;
if (cacheValid[dimension])
{
minValue = cachedMin[dimension];
maxValue = cachedMax[dimension];
return true;
}
return false;
}
internal void SetCachedMinMax(int dimension, double minValue, double maxValue)
{
if (dimension < 0 || dimension > 2) return;
cachedMin[dimension] = minValue;
cachedMax[dimension] = maxValue;
cacheValid[dimension] = true;
}
internal bool TryGetDataZoomCachedMinMax(string key, int dimension, out double minValue, out double maxValue)
{
minValue = 0; maxValue = 0;
if (string.IsNullOrEmpty(key)) return false;
double[] arr;
if (!dataZoomMinMaxCache.TryGetValue(key, out arr) || arr == null || arr.Length < 6) return false;
int mi = dimension * 2;
minValue = arr[mi];
maxValue = arr[mi + 1];
return true;
}
internal void SetDataZoomCachedMinMax(string key, int dimension, double minValue, double maxValue)
{
if (string.IsNullOrEmpty(key)) return;
double[] arr;
if (!dataZoomMinMaxCache.TryGetValue(key, out arr) || arr == null || arr.Length < 6)
{
arr = new double[6];
for (int i = 0; i < 6; i++) arr[i] = 0;
dataZoomMinMaxCache[key] = arr;
}
int mi = dimension * 2;
arr[mi] = minValue;
arr[mi + 1] = maxValue;
}
/// <summary>
/// 鼠标是否进入serie
/// </summary>