可以显示高程信息，还需优化

opmap/mapwidget/opmapwidget.cpp

@@ -76,13 +76,12 @@ OPMapWidget::OPMapWidget(QWidget *parent, Configuration *config) : QGraphicsView
     SetShowCompass(false);
     QPixmapCache::setCacheLimit(1024 * 1024);//set 1M byte
 
-
-
-
-
     setOverlayOpacity(overlayOpacity);
 
+    altitudeitem = new AltitudeItem(map,Qt::red);
+    altitudeitem->setParentItem(map);
 
+    altitudeitem->setPos(0,this->height() - altitudeitem->boundingRect().height());
 
 
 }
@@ -407,6 +406,7 @@ void OPMapWidget::mouseDoubleClickEvent(QMouseEvent *event)
             WPLineCreate(WPFind(Item->Number() - 1),Item,Qt::green,false,2);
 
 
+            /*
             AltitudeItem *AltItem = new AltitudeItem(map,Qt::red);
             AltItem->setParentItem(map);
 
@@ -414,6 +414,8 @@ void OPMapWidget::mouseDoubleClickEvent(QMouseEvent *event)
 
             AltItem->setPos(Item->Number() * 20,this->height() - AltItem->boundingRect().height());
 
+            */
+
             qDebug() << "WPCreate Point"
                      << QThread::currentThreadId();
         }
@@ -840,6 +842,7 @@ void OPMapWidget::ConnectWP(WayPointItem *item)
 
 
 
+
     connect(item,SIGNAL(ElevationChanged(int,double)),
             this,SLOT(ElevationChanged(int,double)), Qt::DirectConnection);
 
@@ -1382,32 +1385,34 @@ void OPMapWidget::setMapTypes(QVariant value)
 
 void OPMapWidget::ElevationChanged(int seq,double value)
 {
+    QMap<int,float> Info;
+
     foreach(QGraphicsItem * i, map->childItems()) {
-        AltitudeItem *w = qgraphicsitem_cast<AltitudeItem *>(i);
+        WayPointItem *w = qgraphicsitem_cast<WayPointItem *>(i);
         if (w)
         {
-            if(w->Number() == seq)
-            {
-                w->setElevation(value);
-                break;
-            }
+            if(!w->FollowPrevious())
+            Info.insert(w->Number(),w->getElevation());
         }
     }
+
+    altitudeitem->setElevation(Info);
 }
 
 void OPMapWidget::AltitudeChanged(int seq,double value)
 {
+    QMap<int,float> Info;
+
     foreach(QGraphicsItem * i, map->childItems()) {
-        AltitudeItem *w = qgraphicsitem_cast<AltitudeItem *>(i);
+        WayPointItem *w = qgraphicsitem_cast<WayPointItem *>(i);
         if (w)
         {
-            if(w->Number() == seq)
-            {
-                w->setAltitude(value);
-                break;
-            }
+            if(!w->FollowPrevious())
+            Info.insert(w->Number(),w->Alt());
         }
     }
+
+    altitudeitem->setAltitude(Info);
 }