Fixed a HUD bug due to antialiasing

src/ui/HUD.cc

@@ -449,13 +449,12 @@ void HUD::paintText(QString text, QColor color, float fontSize, float refX, floa
 
 void HUD::initializeGL()
 {
-    //glEnable(GL_MULTISAMPLE);
-
-    bool antialiasing = true;
+    bool antialiasing = false;
 
     // Antialiasing setup
     if(antialiasing)
     {
+        glEnable(GL_MULTISAMPLE);
         glEnable(GL_BLEND);
 
         glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
@@ -468,9 +467,9 @@ void HUD::initializeGL()
     }
     else
     {
-        glDisable(GL_BLEND);
-        glDisable(GL_POINT_SMOOTH);
-        glDisable(GL_LINE_SMOOTH);
+        //glDisable(GL_BLEND);
+        //glDisable(GL_POINT_SMOOTH);
+        //glDisable(GL_LINE_SMOOTH);
     }
 }
 
@@ -604,6 +603,8 @@ void HUD::paintGL()
     painter.setPen(defaultColor);
     painter.drawPolyline(yawIndicator);
 
+    // CENTER
+
     // HEADING INDICATOR
     //
     //    __      __
@@ -625,6 +626,23 @@ void HUD::paintGL()
     painter.drawPolyline(hIndicator);
 
 
+    // SETPOINT
+    const float centerWidth = 4.0f;
+    painter.setPen(defaultColor);
+    painter.setBrush(Qt::NoBrush);
+    // TODO
+    //painter.drawEllipse(QPointF(refToScreenX(qMin(10.0f, values.value("roll desired", 0.0f) * 10.0f)), refToScreenY(qMin(10.0f, values.value("pitch desired", 0.0f) * 10.0f))), refToScreenX(centerWidth/2.0f), refToScreenX(centerWidth/2.0f));
+
+    const float centerCrossWidth = 10.0f;
+    // left
+    painter.drawLine(QPointF(refToScreenX(-centerWidth / 2.0f), refToScreenY(0.0f)), QPointF(refToScreenX(-centerCrossWidth / 2.0f), refToScreenY(0.0f)));
+    // right
+    painter.drawLine(QPointF(refToScreenX(centerWidth / 2.0f), refToScreenY(0.0f)), QPointF(refToScreenX(centerCrossWidth / 2.0f), refToScreenY(0.0f)));
+    // top
+    painter.drawLine(QPointF(refToScreenX(0.0f), refToScreenY(-centerWidth / 2.0f)), QPointF(refToScreenX(0.0f), refToScreenY(-centerCrossWidth / 2.0f)));
+
+
+
     // COMPASS
     const float compassY = -vheight/2.0f + 10.0f;
     QRectF compassRect(QPointF(refToScreenX(-5.0f), refToScreenY(compassY)), QSizeF(refToScreenX(10.0f), refToScreenY(5.0f)));
@@ -687,24 +705,6 @@ void HUD::paintGL()
 
     //qDebug() << "ROLL" << roll << "PITCH" << pitch << "YAW DIFF" << valuesDot.value("roll", 0.0f);
 
-    // CENTER
-
-    // SETPOINT
-    const float centerWidth = 4.0f;
-    painter.setPen(defaultColor);
-    painter.setBrush(Qt::NoBrush);
-    // TODO
-    //painter.drawEllipse(QPointF(refToScreenX(qMin(10.0f, values.value("roll desired", 0.0f) * 10.0f)), refToScreenY(qMin(10.0f, values.value("pitch desired", 0.0f) * 10.0f))), refToScreenX(centerWidth/2.0f), refToScreenX(centerWidth/2.0f));
-
-    const float centerCrossWidth = 10.0f;
-    // left
-    painter.drawLine(QPointF(refToScreenX(-centerWidth / 2.0f), refToScreenY(0.0f)), QPointF(refToScreenX(-centerCrossWidth / 2.0f), refToScreenY(0.0f)));
-    // right
-    painter.drawLine(QPointF(refToScreenX(centerWidth / 2.0f), refToScreenY(0.0f)), QPointF(refToScreenX(centerCrossWidth / 2.0f), refToScreenY(0.0f)));
-    // top
-    painter.drawLine(QPointF(refToScreenX(0.0f), refToScreenY(-centerWidth / 2.0f)), QPointF(refToScreenX(0.0f), refToScreenY(-centerCrossWidth / 2.0f)));
-
-
     // PITCH
 
     paintPitchLines((pitch/M_PI)*180.0f, &painter);