diff --git a/mainwindow.cpp b/mainwindow.cpp
index 758e184a..4f9b0c17 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -1698,7 +1698,7 @@ void MainWindow::on_actionCreate_Movie_of_wavefronts_triggered()
     int cnt = 0;
     QSettings set;
     QString lastPath = set.value("lastPath",".").toString();
-    int memThreshold = set.value("lowMemoryThreshold",300).toInt();
+    //int memThreshold = set.value("lowMemoryThreshold",300).toInt();
     QImage img = m_ogl->m_surface->render(1000,1000);
 
     int width = img.width();
@@ -1796,7 +1796,7 @@ void MainWindow::on_actionCreate_Movie_of_wavefronts_triggered()
                 QApplication::setOverrideCursor(Qt::WaitCursor);
                 QProcess *proc = new QProcess;
                 connect(proc, QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished),
-                    [=](int exitCode, QProcess::ExitStatus exitStatus){ qDebug() << "what" << exitStatus; });
+                    [=](int exitCode, QProcess::ExitStatus exitStatus){ qDebug() << "what" << exitStatus << "code" << exitCode; });
 
                 proc->setProcessChannelMode(QProcess::MergedChannels);
                 proc->setWorkingDirectory(dir);
diff --git a/percentcorrectiondlg.cpp b/percentcorrectiondlg.cpp
index 6cfce724..7a581df0 100644
--- a/percentcorrectiondlg.cpp
+++ b/percentcorrectiondlg.cpp
@@ -201,10 +201,9 @@ void percentCorrectionDlg::makeZones(){
 
 // the profile version needs the null removed and is in output lambda (usually 550);
 // zernike based does not need the null removed but needs to use laser wave length
-double percentCorrectionDlg::getZernSurface( double RoC, double MirrorRad, std::vector<double> Zernikes, double x, double null = 0.,
+double percentCorrectionDlg::getZernSurface( double RoC, double /*MirrorRad*/, std::vector<double> Zernikes, double x, double null = 0.,
                                              bool useavg = false){
 
-    double num1 = x / MirrorRad;
     arma::rowvec rhov(1), thetav(1);
     rhov[0] = x/m_radius;  thetav[0] = 0.;
     zernikeProcess zp;
@@ -240,7 +239,7 @@ double percentCorrectionDlg::getZernSurface( double RoC, double MirrorRad, std::
     else {
 
         // for each spherical term
-        int z = 8;
+        unsigned int z = 8;
         for(unsigned int j = 6; z < theZs.n_cols; j+=2){
 
             val += Zernikes[z] * theZs(0,z);
@@ -390,13 +389,12 @@ void percentCorrectionDlg::plotProfile(){
     }
     QPolygonF profile2;
     // now plot the m_avg surface
-    int i = 0;
     for(double r = 0; r < m_avg.length(); r += 1. ){
 
        // qDebug() << "r" << r << m_avg[i];
                     double y = m_avg[r].y();//getZernSurface(m_roc, m_radius, surfs[i]->zernvalues, fabs(r), true);
 
-        double sphery = m_roc - sqrt(pow(m_roc, 2.0) - pow(r, 2.0));
+        //double sphery = m_roc - sqrt(pow(m_roc, 2.0) - pow(r, 2.0));
         //y -= sphery;
         //y /= m_lambda_nm * .5E-6;
         profile2 << QPointF(m_avg[r].x(),  y);
diff --git a/profileplot.cpp b/profileplot.cpp
index 39ef886e..17d2ed93 100644
--- a/profileplot.cpp
+++ b/profileplot.cpp
@@ -332,7 +332,7 @@ void ProfilePlot::setDefocusValue(double val){
             m_plot->replot();
         }
 }
-QPolygonF ProfilePlot::createAverageProfile(double umnits, wavefront *wf, bool removeNull = false){
+QPolygonF ProfilePlot::createAverageProfile(double /*umnits*/, wavefront * /*wf*/, bool /*removeNull = false*/){
     surfaceAnalysisTools *saTools = surfaceAnalysisTools::get_Instance();
     QList<int> list = saTools->SelectedWaveFronts();
     QPolygonF avg;
@@ -518,7 +518,7 @@ void ProfilePlot::populate()
     compass->setGeometry(QRect(80,80,70,70));
     QString tmp("nanometers");
     if (m_showNm == 1.)
-        tmp = QString().sprintf("waves of %6.1lf nm",outputLambda);
+        tmp = QString("waves of %1 nm").arg(outputLambda, 6, 'f', 1);
     m_plot->setAxisTitle( m_plot->yLeft, "Error in " + tmp );
     m_plot->setAxisTitle( m_plot->xBottom, "Radius mm" );
 
@@ -536,7 +536,9 @@ void ProfilePlot::populate()
 
     if (m_wf->m_outside.m_radius > 0 && settings.value("GBlur", false).toBool()){
         double val = .01 * (m_wf->diameter) * smoothing;
-        QString t = QString().sprintf("Surface Smoothing diameter %6.2lf%% of surface diameter %6.1lf mm", smoothing , val );
+        QString t = QString("Surface Smoothing diameter %1% of surface diameter %2 mm")
+                        .arg(smoothing, 6, 'f', 2)
+                        .arg(val, 6, 'f', 1);
         QwtText title(t);
         title.setRenderFlags( Qt::AlignHCenter | Qt::AlignTop );
 
@@ -587,7 +589,6 @@ void ProfilePlot::populate()
 
             surfaceAnalysisTools *saTools = surfaceAnalysisTools::get_Instance();
               QList<int> list = saTools->SelectedWaveFronts();
-              bool firstPlot = true;
               QColor penColor = QColor("blue");
 
               for (int indx = 0; indx < list.size(); ++indx){
@@ -789,7 +790,6 @@ void ProfilePlot::contourPointSelected(const QPointF &pos){
     double dely = pos.y() - m_wf->data.cols/2;
 
     double angle = atan2(delx,dely);  // swaped x and y to rotate by 90 deg.
-    double angle2 = angle;
     const double twopi = M_PI * 2.;
     // force 0 to 360
     if (angle < 0)
@@ -806,11 +806,13 @@ void ProfilePlot::contourPointSelected(const QPointF &pos){
 }
 void ProfilePlot::showCorrection(){
     if (m_wf == 0)
+    {
         return;
+    }
 
-        m_pcdlg->show();
-        m_pcdlg->raise();
-        make_correction_graph();
+    m_pcdlg->show();
+    m_pcdlg->raise();
+    make_correction_graph();
 
 
 }
diff --git a/zernikeprocess.cpp b/zernikeprocess.cpp
index ecdba249..1ad0bfff 100644
--- a/zernikeprocess.cpp
+++ b/zernikeprocess.cpp
@@ -1366,7 +1366,7 @@ arma::mat zernikeProcess::zapmC(const arma::rowvec& rho, const arma::rowvec& the
 
 
 void zernikeProcess::initGrid(int width, double radius, double cx, double cy, int maxOrder,
-                              double insideRad){
+                              double /*insideRad*/){
 
     // if grid or maxOrder is different then update values.
     double obsPercent = 0.;
diff --git a/zernikesmoothingdlg.cpp b/zernikesmoothingdlg.cpp
index a3ecfddb..7b30443d 100644
--- a/zernikesmoothingdlg.cpp
+++ b/zernikesmoothingdlg.cpp
@@ -92,7 +92,6 @@ cv::Mat makeSurfaceFromZerns(int width, zernikeProcess &zp, std::vector<double>
         }
     }
     else {  // use only spherical terms.
-        unsigned int z = 0;
         for (unsigned long long i = 4; i < zp.m_zerns.n_rows; ++i){
 
             double S1 = 0.0;