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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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114
Runtime/Internal/Utilities/DataHelper.cs
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@@ -5,6 +5,36 @@ namespace XCharts.Runtime
{
public static class DataHelper
{
private static List<double> s_SampleSumPrefix = new List<double>();
public static bool IsAnyDataChanged(ref List<SerieData> showData, int minCount, int maxCount)
{
for (int i = minCount; i < maxCount; i++)
{
if (showData[i].IsDataChanged())
return true;
}
return false;
}
public static List<double> BuildSampleSumPrefix(ref List<SerieData> showData, int maxCount, bool inverse)
{
if (maxCount < 0) maxCount = 0;
var targetCount = maxCount + 1;
if (s_SampleSumPrefix.Count != targetCount)
{
s_SampleSumPrefix.Clear();
for (int i = 0; i < targetCount; i++)
s_SampleSumPrefix.Add(0);
}
s_SampleSumPrefix[0] = 0;
for (int i = 0; i < maxCount; i++)
{
s_SampleSumPrefix[i + 1] = s_SampleSumPrefix[i] + showData[i].GetData(1, inverse);
}
return s_SampleSumPrefix;
}
public static double DataAverage(ref List<SerieData> showData, SampleType sampleType,
int minCount, int maxCount, int rate)
{
@@ -23,14 +53,84 @@ namespace XCharts.Runtime
public static double SampleValue(ref List<SerieData> showData, SampleType sampleType, int rate,
int minCount, int maxCount, double totalAverage, int index, float dataAddDuration, float dataChangeDuration,
ref bool dataChanging, Axis axis, bool unscaledTime)
ref bool dataChanging, Axis axis, bool unscaledTime, bool useCurrentData = true,
bool checkDataChanging = true, List<double> sampleSumPrefix = null)
{
var inverse = axis.inverse;
var minValue = 0;
var maxValue = 0;
if (!useCurrentData)
{
if (rate <= 1 || index == minCount)
return showData[index].GetData(1, inverse);
switch (sampleType)
{
case SampleType.Sum:
case SampleType.Average:
if (sampleSumPrefix != null)
{
var totalByPrefix = sampleSumPrefix[index + 1] - sampleSumPrefix[index - rate + 1];
if (sampleType == SampleType.Average)
return totalByPrefix / rate;
else
return totalByPrefix;
}
double total = 0;
for (int i = index; i > index - rate; i--)
{
total += showData[i].GetData(1, inverse);
}
if (sampleType == SampleType.Average)
return total / rate;
else
return total;
case SampleType.Max:
double max = double.MinValue;
for (int i = index; i > index - rate; i--)
{
var value = showData[i].GetData(1, inverse);
if (value > max)
max = value;
}
return max;
case SampleType.Min:
double min = double.MaxValue;
for (int i = index; i > index - rate; i--)
{
var value = showData[i].GetData(1, inverse);
if (value < min)
min = value;
}
return min;
case SampleType.Peak:
max = double.MinValue;
min = double.MaxValue;
total = 0;
for (int i = index; i > index - rate; i--)
{
var value = showData[i].GetData(1, inverse);
total += value;
if (value < min)
min = value;
if (value > max)
max = value;
}
var average = total / rate;
if (average >= totalAverage)
return max;
else
return min;
}
return showData[index].GetData(1, inverse);
}
if (rate <= 1 || index == minCount)
{
if (showData[index].IsDataChanged())
if (checkDataChanging && showData[index].IsDataChanged())
dataChanging = true;
return showData[index].GetCurrData(1, dataAddDuration, dataChangeDuration, inverse, minValue, maxValue, unscaledTime);
@@ -45,7 +145,7 @@ namespace XCharts.Runtime
{
count++;
total += showData[i].GetCurrData(1, dataAddDuration, dataChangeDuration, inverse, minValue, maxValue, unscaledTime);
if (showData[i].IsDataChanged())
if (checkDataChanging && showData[i].IsDataChanged())
dataChanging = true;
}
if (sampleType == SampleType.Average)
@@ -61,7 +161,7 @@ namespace XCharts.Runtime
if (value > max)
max = value;
if (showData[i].IsDataChanged())
if (checkDataChanging && showData[i].IsDataChanged())
dataChanging = true;
}
return max;
@@ -74,7 +174,7 @@ namespace XCharts.Runtime
if (value < min)
min = value;
if (showData[i].IsDataChanged())
if (checkDataChanging && showData[i].IsDataChanged())
dataChanging = true;
}
return min;
@@ -92,7 +192,7 @@ namespace XCharts.Runtime
if (value > max)
max = value;
if (showData[i].IsDataChanged())
if (checkDataChanging && showData[i].IsDataChanged())
dataChanging = true;
}
var average = total / rate;
@@ -101,7 +201,7 @@ namespace XCharts.Runtime
else
return min;
}
if (showData[index].IsDataChanged())
if (checkDataChanging && showData[index].IsDataChanged())
dataChanging = true;
return showData[index].GetCurrData(1, dataAddDuration, dataChangeDuration, inverse, minValue, maxValue, unscaledTime);