diff --git a/logPlus/qmycustomplot.cpp b/logPlus/qmycustomplot.cpp
index 18a7c58..66128cc 100644
--- a/logPlus/qmycustomplot.cpp
+++ b/logPlus/qmycustomplot.cpp
@@ -642,7 +642,7 @@ QCPColorMap * QMyCustomPlot::updateWave()
     int ny = m_nSamples;
 
     m_colorMap->data()->setSize(nx, ny); // 我们希望彩色地图有nx*ny的数据点
-	float f = 264 / 269.0f;
+	float f = 0.99;// 264 / 269.0f;
     m_colorMap->data()->setRange(QCPRange(0 - m_EDep, 0 - m_SDep), QCPRange(this->m_iX1, this->m_iX2*f));
 
     for (int xIndex = 0; xIndex < nx; ++xIndex)
@@ -5108,15 +5108,20 @@ void QMyCustomPlot::s_changeDrawProperty(QVariantList vlist)
         }
         else if ("左刻度" == strProperty)
         {
-
+			if (m_colorMap)
+			{
+				m_iX1 = varVal.toFloat();
+				float f = 264 / m_fScaleV;
+				m_colorMap->data()->setValueRange(QCPRange(m_iX1, m_iX2*f));
+			}
         }
         else if ("右刻度" == strProperty)
         {
             if (m_colorMap)
             {
-                m_fScaleV = varVal.toFloat();
-                float f = 264 / m_fScaleV;
-                m_colorMap->data()->setValueRange(QCPRange(m_fmin, m_fmax*f));
+				m_fScaleV = varVal.toFloat();
+				float f = 264 / m_fScaleV;
+                m_colorMap->data()->setValueRange(QCPRange(m_iX1, m_iX2*f));
             }
         }
         else if ("最大振幅" == strProperty)