diff --git a/logPlus/PickFrac.cpp b/logPlus/PickFrac.cpp
index 75d3d01..da732f8 100644
--- a/logPlus/PickFrac.cpp
+++ b/logPlus/PickFrac.cpp
@@ -210,8 +210,8 @@ void CPickFrac::drawOne(FRAC_TABLE_Crack frac, QString cs, int iType, int nLineW
         for(j=0; j<nPoint-1; j++)
         {
             QCPItemLine *qcpItemLine = new QCPItemLine(m_myCustomPlot);
-            qcpItemLine->start->setCoords(frac.point[j].x, -frac.point[j].y);
-            qcpItemLine->end->setCoords(frac.point[j+1].x, -frac.point[j+1].y);
+            qcpItemLine->start->setCoords(frac.point[j].x/8, -frac.point[j].y);
+            qcpItemLine->end->setCoords(frac.point[j+1].x/8, -frac.point[j+1].y);
             qcpItemLine->setPen(pPen);
             j++;//j+2
         }
@@ -221,18 +221,17 @@ void CPickFrac::drawOne(FRAC_TABLE_Crack frac, QString cs, int iType, int nLineW
         for(j=0; j<nPoint; j++)
         {
              QCPItemLine *qcpItemLine = new QCPItemLine(m_myCustomPlot);
-             qcpItemLine->start->setCoords(frac.point[j].x, -frac.point[j].y);
+             qcpItemLine->start->setCoords(frac.point[j].x / 8, -frac.point[j].y);
              if(j>=(nPoint-1))
              {
-                 qcpItemLine->end->setCoords(frac.point[0].x, -frac.point[0].y);
+                 qcpItemLine->end->setCoords(frac.point[0].x / 8, -frac.point[0].y);
              }
              else
              {
-                 qcpItemLine->end->setCoords(frac.point[j+1].x, -frac.point[j+1].y);
+                 qcpItemLine->end->setCoords(frac.point[j+1].x / 8, -frac.point[j+1].y);
              }
              qcpItemLine->setPen(pPen);
          }
-
         break;
     case 4: //直线
         nPoint = frac.NUM;