增加科学计数法显示数值的支持

This commit is contained in:
monitor1394
2019-10-26 05:02:32 +08:00
parent 8c4ef814c8
commit bdf46ea785
9 changed files with 78 additions and 23 deletions

View File

@@ -13,31 +13,51 @@ namespace XCharts
public static class ChartCached
{
private static Dictionary<float, string> s_ValueToF1Str = new Dictionary<float, string>(1000);
private static Dictionary<float, string> s_ValueToE1Str = new Dictionary<float, string>(1000);
private static Dictionary<float, string> s_ValueToF2Str = new Dictionary<float, string>(1000);
private static Dictionary<float, string> s_ValueToStr = new Dictionary<float, string>(1000);
private static Dictionary<float, string> s_ValueToE2Str = new Dictionary<float, string>(1000);
private static Dictionary<float, string> s_ValueToFnStr = new Dictionary<float, string>(1000);
private static Dictionary<float, string> s_ValueToEnStr = new Dictionary<float, string>(1000);
private static Dictionary<float, string> s_ValueToFStr = new Dictionary<float, string>(1000);
private static Dictionary<float, string> s_ValueToEStr = new Dictionary<float, string>(1000);
private static Dictionary<int, string> s_IntToStr = new Dictionary<int, string>(1000);
private static Dictionary<int, string> s_IntToFn = new Dictionary<int, string>(20);
private static Dictionary<Color, string> s_ColorToStr = new Dictionary<Color, string>(1000);
public static string FloatToStr(float value, int f = 0)
public static string FloatToStr(float value, int f = 0, bool forceE = false)
{
if (f > 2) f = 2;
Dictionary<float, string> valueDic;
if (f == 1) valueDic = s_ValueToF1Str;
else if (f == 2) valueDic = s_ValueToF2Str;
else valueDic = s_ValueToStr;
if (f == 0) valueDic = forceE ? s_ValueToEStr : s_ValueToFStr;
if (f == 1) valueDic = forceE ? s_ValueToE1Str : s_ValueToF1Str;
else if (f == 2) valueDic = forceE ? s_ValueToE2Str : s_ValueToF2Str;
else valueDic = forceE ? s_ValueToEnStr : s_ValueToFnStr;
if (valueDic.ContainsKey(value))
{
return valueDic[value];
}
else
{
if (f == 1) valueDic[value] = value.ToString("f1");
if (f == 0) valueDic[value] = forceE ? value.ToString("E") : value.ToString();
else if (f == 1) valueDic[value] = value.ToString("f1");
else if (f == 2) valueDic[value] = value.ToString("f2");
else valueDic[value] = value.ToString();
else valueDic[value] = (f > 3 || forceE) ? value.ToString("E1") : value.ToString(GetFn(f));
return valueDic[value];
}
}
private static string GetFn(int f)
{
if (s_IntToFn.ContainsKey(f))
{
return s_IntToFn[f];
}
else
{
s_IntToFn[f] = "f" + f;
return s_IntToFn[f];
}
}
public static string IntToStr(int value)
{
if (s_IntToStr.ContainsKey(value))