From ebb46b7a47c0ddc04958fd556f3bcf6c481ad074 Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期二, 23 七月 2024 13:19:55 +0800
Subject: [PATCH] 修改流速
---
SimuTools/Tools/Handle.cs | 13 +++++--------
1 files changed, 5 insertions(+), 8 deletions(-)
diff --git a/SimuTools/Tools/Handle.cs b/SimuTools/Tools/Handle.cs
index 579d7a8..febc768 100644
--- a/SimuTools/Tools/Handle.cs
+++ b/SimuTools/Tools/Handle.cs
@@ -476,16 +476,13 @@
int offset = x + y * width;
float fx = GetFloatValue(vxBuffer[offset]);
float fy = GetFloatValue(vyBuffer[offset]);
-
double rv = GetRVal(fx, fy);
double dv = GetXyValue(fx, fy, rv);
- int r = Convert.ToInt32(double.IsNaN(dv) || dv == 0 ? 0 : (dv * 0.5 + 0.5) * 255);
- if (r < 0 || r > 255) r = 255;
- //int g = Convert.ToInt32((float.IsNaN(fx) ? 0 : fx * 0.5 + 0.5) * 255);
- //int b = Convert.ToInt32((float.IsNaN(fy) ? 0 : fy * 0.5 + 0.5) * 255);
+ int r= Convert.ToInt32(double.IsNaN(dv) || dv == 0 ? 0 : (dv * 0.5 + 0.5) * 255);
int g = float.IsNaN(fx) ? 0 : Convert.ToInt32((fx - minHeight) / perHeight);
int b = float.IsNaN(fy) ? 0 : Convert.ToInt32((fy - minHeight) / perHeight);
+ if (r < 0 || r > 255) r = 255;
if (g < 0 || g > 255) g = 255;
if (b < 0 || b > 255) b = 255;
@@ -509,7 +506,7 @@
/// </summary>
private static double GetRVal(float fx, float fy)
{
- if (float.IsNaN(fx) && float.IsNaN(fy)) return 1.0;
+ if (float.IsNaN(fx) && float.IsNaN(fy)) return double.NaN;
if (float.IsNaN(fx)) return Math.Abs(fy);
@@ -534,9 +531,9 @@
return fx / rv;
}
- double v = Math.Sqrt(Math.Pow(fx / rv, 2) + Math.Pow(fy / rv, 2));
+ double dv = fx / rv + fy / rv;
- return (fx > 0 && fy > 0) || (fx < 0 && fy < 0) ? v : -v;
+ return dv < 0 ? -Math.Sqrt(-dv) : Math.Sqrt(dv);
}
#endregion
--
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