refactorings, code improvements, no functional changes

lib/jkqtcommon_statistics_and_math/jkqtpmathparser.cpp

@@ -1384,7 +1384,9 @@ std::string JKQTPMathParser::readDelim(char delimiter){
             } else {
                 break;
             }
-        } else if ((*program) && (ch!=delimiter)) res=res+ch;
+        } else {
+            res=res+ch;
+        }
     }
 
     return res;

lib/jkqtcommon_statistics_and_math/jkqtpstatbasics.h

@@ -69,7 +69,7 @@ inline double jkqtpstatAverage(InputIt first, InputIt last, size_t* Noutput=null
         }
     }
     if (Noutput) *Noutput=NN;
-    if (NN<=0) return JKQTP_DOUBLE_NAN;
+    if (NN==0) return JKQTP_DOUBLE_NAN;
     else return sum/static_cast<double>(NN);
 }
 
@@ -112,7 +112,7 @@ inline double jkqtpstatWeightedAverage(InputIt first, InputIt last, InputWeightI
         }
     }
     if (Noutput) *Noutput=NN;
-    if (NN<=0) return JKQTP_DOUBLE_NAN;
+    if (NN==0) return JKQTP_DOUBLE_NAN;
     else return sum/sumW;
 }
 
@@ -191,7 +191,7 @@ inline void jkqtpstatMinMax(InputIt first, InputIt last, double& min, double& ma
             NN++;
         }
     }
-    if (NN<=0) {
+    if (NN==0) {
         min=JKQTP_DOUBLE_NAN;
         max=JKQTP_DOUBLE_NAN;
     }
@@ -327,7 +327,7 @@ inline double jkqtpstatModifiedSum(InputIt first, InputIt last, FF modifierFunct
         }
     }
     if (Noutput) *Noutput=NN;
-    if (NN<=0) return 0;
+    if (NN==0) return 0;
     else return sum;
 }
 
@@ -482,7 +482,7 @@ inline double jkqtpstatVariance(InputIt first, InputIt last, double* averageOut=
         }
     }
     if (averageOut) {
-        if (NN<=0) *averageOut=JKQTP_DOUBLE_NAN;
+        if (NN==0) *averageOut=JKQTP_DOUBLE_NAN;
         else *averageOut=sum/static_cast<double>(NN);
     }
     if (Noutput) *Noutput=NN;
@@ -556,7 +556,7 @@ inline double jkqtpstatWeightedVariance(InputIt first, InputIt last, InputWeight
     }
     if (averageOut) *averageOut=avg;
     if (Noutput) *Noutput=NN;
-    if (NN<=0) return 0;
+    if (NN==0) return 0;
     else return sum2/sumW;
 }
 
@@ -626,7 +626,7 @@ inline double jkqtpstatSkewness(InputIt first, InputIt last, double* averageOut=
     }
     if (averageOut) *averageOut=avg;
     if (Noutput) *Noutput=NN;
-    if (NN<=0) return 0;
+    if (NN==0) return 0;
     const double down=jkqtp_cube(sum2/double(NN));
     return sum3/double(NN)/sqrt(down);
 }
@@ -669,7 +669,7 @@ inline double jkqtpstatCentralMoment(InputIt first, InputIt last, int order, dou
     }
     if (averageOut) *averageOut=avg;
     if (Noutput) *Noutput=NN;
-    if (NN<=0) return 0;
+    if (NN==0) return 0;
     return sum/double(NN);
 }
 
@@ -708,7 +708,7 @@ inline double jkqtpstatMoment(InputIt first, InputIt last, int order, size_t* No
         }
     }
     if (Noutput) *Noutput=NN;
-    if (NN<=0) return 0;
+    if (NN==0) return 0;
     return sum/double(NN);
 }
 
@@ -755,14 +755,14 @@ inline double jkqtpstatCorrelationCoefficient(InputIt1 first1, InputIt1 last1, I
     }
     if (Noutput) *Noutput=NN;
     if (averageOut1) {
-        if (NN<=0) *averageOut1=JKQTP_DOUBLE_NAN;
+        if (NN==0) *averageOut1=JKQTP_DOUBLE_NAN;
         else *averageOut1=xbar/static_cast<double>(NN);
     }
     if (averageOut2) {
-        if (NN<=0) *averageOut2=JKQTP_DOUBLE_NAN;
+        if (NN==0) *averageOut2=JKQTP_DOUBLE_NAN;
         else *averageOut2=ybar/static_cast<double>(NN);
     }
-    if (NN<=0) return JKQTP_DOUBLE_NAN;
+    if (NN==0) return JKQTP_DOUBLE_NAN;
 
     xbar=xbar/NN;
     ybar=ybar/NN;

lib/jkqtfastplotter/jkqtfastplotter.h

@@ -2789,7 +2789,7 @@ class JKQTFASTPLOTTER_LIB_EXPORT JKQTFPRGBImageOverlayPlot: public JKQTFPPlot {
          */
         JKQTFPRGBImageOverlayPlot(JKQTFastPlotter* parent, void* imageRed, JKQTFPImageFormat imageFormat, int width, int height, double xmin, double xmax, double ymin, double ymax) ;
         JKQTFPRGBImageOverlayPlot(JKQTFastPlotter* parent, void* imageRed, JKQTFPImageFormat imageFormat, int width, int height);
-        JKQTFPRGBImageOverlayPlot(JKQTFastPlotter* parent);
+        explicit JKQTFPRGBImageOverlayPlot(JKQTFastPlotter* parent);
 
         /** \brief draw the graph */
         virtual void drawGraph(QPainter& painter) override;

lib/jkqtplotter/graphs/jkqtpbarchart.cpp

@@ -380,78 +380,10 @@ bool JKQTPBarHorizontalErrorGraph::usesColumn(int c) const
 bool JKQTPBarHorizontalErrorGraph::getXMinMax(double &minx, double &maxx, double &smallestGreaterZero)
 {
     if (xErrorColumn<0 || xErrorStyle==JKQTPNoError) {
-        minx=0;
+        return getMinMaxWithBaseline(xColumn, minx, maxx, smallestGreaterZero);
-        maxx=0;
-        smallestGreaterZero=0;
-        if (getBaseline()>0) {
-            smallestGreaterZero=getBaseline();
-            minx=getBaseline();
-            maxx=getBaseline();
-        }
-
-        if (parent==nullptr) return false;
-
-        JKQTPDatastore* datastore=parent->getDatastore();
-        int imax=0;
-        int imin=0;
-        if (getIndexRange(imin, imax)) {
-
-
-            for (int i=imin; i<imax; i++) {
-                double yv=getBaseline();
-                if (JKQTPIsOKFloat(yv)) {
-                    if (yv>maxx) maxx=yv;
-                    if (yv<minx) minx=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                }
-                yv=datastore->get(static_cast<size_t>(xColumn),static_cast<size_t>(i));
-                if (JKQTPIsOKFloat(yv)) {
-                    if (yv>maxx) maxx=yv;
-                    if (yv<minx) minx=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                }
-            }
-            return true;
-        }
     } else {
-        bool start=false;
+        return getMinMaxWithErrorsAndBaseline(xColumn, xErrorColumn, xErrorColumnLower, xErrorSymmetric, minx, maxx, smallestGreaterZero);
-        minx=getBaseline();
-        maxx=getBaseline();
-        smallestGreaterZero=0;
-        if (getBaseline()>0) {
-            smallestGreaterZero=getBaseline();
-            minx=getBaseline();
-            maxx=getBaseline();
-        }
-
-        if (parent==nullptr) return false;
-
-        const JKQTPDatastore* datastore=parent->getDatastore();
-        int imax=0;
-        int imin=0;
-        if (getIndexRange(imin, imax)) {
-
-
-            for (int i=imin; i<imax; i++) {
-                const double yv=datastore->get(static_cast<size_t>(xColumn),static_cast<size_t>(i))+getXErrorU(i, datastore);
-                const double yvv=datastore->get(static_cast<size_t>(xColumn),static_cast<size_t>(i))-getXErrorL(i, datastore);
-                if (JKQTPIsOKFloat(yv) && JKQTPIsOKFloat(yvv) ) {
-                    if (start || yv>maxx) maxx=yv;
-                    if (start || yv<minx) minx=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                    if (start || yvv>maxx) maxx=yvv;
-                    if (start || yvv<minx) minx=yvv;
-                    xvsgz=yvv; SmallestGreaterZeroCompare_xvsgz();
-                    start=false;
-                }
-            }
-            return !start;
-        }
     }
-    return false;
 }
 
 void JKQTPBarHorizontalErrorGraph::drawErrorsAfter(JKQTPEnhancedPainter &painter)
@@ -534,78 +466,10 @@ bool JKQTPBarVerticalErrorGraph::usesColumn(int c) const
 bool JKQTPBarVerticalErrorGraph::getYMinMax(double &miny, double &maxy, double &smallestGreaterZero)
 {
     if (yErrorColumn<0 || yErrorStyle==JKQTPNoError) {
-        miny=0;
+        return getMinMaxWithBaseline(yColumn, miny, maxy, smallestGreaterZero);
-        maxy=0;
-        smallestGreaterZero=0;
-        if (getBaseline()>0) {
-            smallestGreaterZero=getBaseline();
-            miny=getBaseline();
-            maxy=getBaseline();
-        }
-
-        if (parent==nullptr) return false;
-
-        JKQTPDatastore* datastore=parent->getDatastore();
-        int imax=0;
-        int imin=0;
-        if (getIndexRange(imin, imax)) {
-
-
-            for (int i=imin; i<imax; i++) {
-                double yv=getBaseline();
-                if (JKQTPIsOKFloat(yv)) {
-                    if (yv>maxy) maxy=yv;
-                    if (yv<miny) miny=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                }
-                yv=datastore->get(static_cast<size_t>(yColumn),static_cast<size_t>(i));
-                if (JKQTPIsOKFloat(yv)) {
-                    if (yv>maxy) maxy=yv;
-                    if (yv<miny) miny=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                }
-            }
-            return true;
-        }
     } else {
-        bool start=false;
+        return getMinMaxWithErrorsAndBaseline(yColumn, yErrorColumn, yErrorColumnLower, yErrorSymmetric, miny, maxy, smallestGreaterZero);
-        miny=getBaseline();
-        maxy=getBaseline();
-        smallestGreaterZero=0;
-        if (getBaseline()>0) {
-            smallestGreaterZero=getBaseline();
-            miny=getBaseline();
-            maxy=getBaseline();
-        }
-
-        if (parent==nullptr) return false;
-
-        const JKQTPDatastore* datastore=parent->getDatastore();
-        int imax=0;
-        int imin=0;
-        if (getIndexRange(imin, imax)) {
-
-
-            for (int i=imin; i<imax; i++) {
-                const double yv=datastore->get(static_cast<size_t>(yColumn),static_cast<size_t>(i))+getYErrorU(i, datastore);
-                const double yvv=datastore->get(static_cast<size_t>(yColumn),static_cast<size_t>(i))-getYErrorL(i, datastore);
-                if (JKQTPIsOKFloat(yv) && JKQTPIsOKFloat(yvv) ) {
-                    if (start || yv>maxy) maxy=yv;
-                    if (start || yv<miny) miny=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                    if (start || yvv>maxy) maxy=yvv;
-                    if (start || yvv<miny) miny=yvv;
-                    xvsgz=yvv; SmallestGreaterZeroCompare_xvsgz();
-                    start=false;
-                }
-            }
-            return !start;
-        }
     }
-    return false;
 }
 
 int JKQTPBarVerticalErrorGraph::getBarErrorColumn() const

lib/jkqtplotter/graphs/jkqtpfilledcurve.cpp

@@ -25,8 +25,6 @@
 #include <QDebug>
 #include <iostream>
 #include "jkqtplotter/jkqtptools.h"
-#include "jkqtplotter/graphs/jkqtpimage.h"
-#include "jkqtplotter/jkqtpbaseelements.h"
 #include "jkqtplotter/jkqtplotter.h"
 #define SmallestGreaterZeroCompare_xvsgz() if ((xvsgz>10.0*DBL_MIN)&&((smallestGreaterZero<10.0*DBL_MIN) || (xvsgz<smallestGreaterZero))) smallestGreaterZero=xvsgz;
 
@@ -225,13 +223,7 @@ void JKQTPFilledCurveXGraph::draw(JKQTPEnhancedPainter& painter) {
 
 bool JKQTPFilledCurveXGraph::getYMinMax(double &miny, double &maxy, double &smallestGreaterZero)
 {
-    bool res=JKQTPXYGraph::getYMinMax(miny, maxy, smallestGreaterZero);
+    return getMinMaxWithBaseline(yColumn, miny,maxy,smallestGreaterZero);
-    if (getBaseline()>0 && getBaseline()<smallestGreaterZero) {
-        smallestGreaterZero=getBaseline();
-    }
-    miny=qMin(miny,getBaseline());
-    maxy=qMax(maxy,getBaseline());
-    return res;
 }
 
 JKQTPFilledCurveYGraph::JKQTPFilledCurveYGraph(JKQTBasePlotter* parent):
@@ -247,13 +239,7 @@ JKQTPFilledCurveYGraph::JKQTPFilledCurveYGraph(JKQTPlotter *parent):
 
 bool JKQTPFilledCurveYGraph::getXMinMax(double &minx, double &maxx, double &smallestGreaterZero)
 {
-    bool res=JKQTPXYGraph::getXMinMax(minx, maxx, smallestGreaterZero);
+    return getMinMaxWithBaseline(xColumn, minx, maxx, smallestGreaterZero);
-    if (getBaseline()>0 && getBaseline()<smallestGreaterZero) {
-        smallestGreaterZero=getBaseline();
-    }
-    minx=qMin(minx,getBaseline());
-    maxx=qMax(maxx,getBaseline());
-    return res;
 }
 
 void JKQTPFilledCurveYGraph::draw(JKQTPEnhancedPainter &painter)
@@ -406,78 +392,10 @@ void JKQTPFilledCurveXErrorGraph::drawErrorsAfter(JKQTPEnhancedPainter &painter)
 bool JKQTPFilledCurveXErrorGraph::getYMinMax(double &miny, double &maxy, double &smallestGreaterZero)
 {
     if (yErrorColumn<0 || yErrorStyle==JKQTPNoError) {
-        miny=0;
+        return getMinMaxWithBaseline(yColumn, miny, maxy, smallestGreaterZero);
-        maxy=0;
-        smallestGreaterZero=0;
-        if (getBaseline()>0) {
-            smallestGreaterZero=getBaseline();
-            miny=getBaseline();
-            maxy=getBaseline();
-        }
-
-        if (parent==nullptr) return false;
-
-        JKQTPDatastore* datastore=parent->getDatastore();
-        int imax=0;
-        int imin=0;
-        if (getIndexRange(imin, imax)) {
-
-
-            for (int i=imin; i<imax; i++) {
-                double yv=getBaseline();
-                if (JKQTPIsOKFloat(yv)) {
-                    if (yv>maxy) maxy=yv;
-                    if (yv<miny) miny=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                }
-                yv=datastore->get(static_cast<size_t>(yColumn),static_cast<size_t>(i));
-                if (JKQTPIsOKFloat(yv)) {
-                    if (yv>maxy) maxy=yv;
-                    if (yv<miny) miny=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                }
-            }
-            return true;
-        }
     } else {
-        bool start=false;
+        return getMinMaxWithErrorsAndBaseline(yColumn, yErrorColumn, yErrorColumnLower, yErrorSymmetric, miny, maxy, smallestGreaterZero);
-        miny=getBaseline();
-        maxy=getBaseline();
-        smallestGreaterZero=0;
-        if (getBaseline()>0) {
-            smallestGreaterZero=getBaseline();
-            miny=getBaseline();
-            maxy=getBaseline();
-        }
-
-        if (parent==nullptr) return false;
-
-        const JKQTPDatastore* datastore=parent->getDatastore();
-        int imax=0;
-        int imin=0;
-        if (getIndexRange(imin, imax)) {
-
-
-            for (int i=imin; i<imax; i++) {
-                const double yv=datastore->get(static_cast<size_t>(yColumn),static_cast<size_t>(i))+getYErrorU(i, datastore);
-                const double yvv=datastore->get(static_cast<size_t>(yColumn),static_cast<size_t>(i))-getYErrorL(i, datastore);
-                if (JKQTPIsOKFloat(yv) && JKQTPIsOKFloat(yvv) ) {
-                    if (start || yv>maxy) maxy=yv;
-                    if (start || yv<miny) miny=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                    if (start || yvv>maxy) maxy=yvv;
-                    if (start || yvv<miny) miny=yvv;
-                    xvsgz=yvv; SmallestGreaterZeroCompare_xvsgz();
-                    start=false;
-                }
-            }
-            return !start;
-        }
     }
-    return false;
 }
 
 JKQTPFilledCurveYErrorGraph::JKQTPFilledCurveYErrorGraph(JKQTBasePlotter *parent):
@@ -502,78 +420,10 @@ bool JKQTPFilledCurveYErrorGraph::usesColumn(int c) const
 bool JKQTPFilledCurveYErrorGraph::getXMinMax(double &minx, double &maxx, double &smallestGreaterZero)
 {
     if (xErrorColumn<0 || xErrorStyle==JKQTPNoError) {
-        minx=0;
+        return getMinMaxWithBaseline(xColumn, minx, maxx, smallestGreaterZero);
-        maxx=0;
-        smallestGreaterZero=0;
-        if (getBaseline()>0) {
-            smallestGreaterZero=getBaseline();
-            minx=getBaseline();
-            maxx=getBaseline();
-        }
-
-        if (parent==nullptr) return false;
-
-        JKQTPDatastore* datastore=parent->getDatastore();
-        int imax=0;
-        int imin=0;
-        if (getIndexRange(imin, imax)) {
-
-
-            for (int i=imin; i<imax; i++) {
-                double yv=getBaseline();
-                if (JKQTPIsOKFloat(yv)) {
-                    if (yv>maxx) maxx=yv;
-                    if (yv<minx) minx=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                }
-                yv=datastore->get(static_cast<size_t>(xColumn),static_cast<size_t>(i));
-                if (JKQTPIsOKFloat(yv)) {
-                    if (yv>maxx) maxx=yv;
-                    if (yv<minx) minx=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                }
-            }
-            return true;
-        }
     } else {
-        bool start=false;
+        return getMinMaxWithErrorsAndBaseline(xColumn, xErrorColumn, xErrorColumnLower, xErrorSymmetric, minx, maxx, smallestGreaterZero);
-        minx=getBaseline();
-        maxx=getBaseline();
-        smallestGreaterZero=0;
-        if (getBaseline()>0) {
-            smallestGreaterZero=getBaseline();
-            minx=getBaseline();
-            maxx=getBaseline();
-        }
-
-        if (parent==nullptr) return false;
-
-        const JKQTPDatastore* datastore=parent->getDatastore();
-        int imax=0;
-        int imin=0;
-        if (getIndexRange(imin, imax)) {
-
-
-            for (int i=imin; i<imax; i++) {
-                const double yv=datastore->get(static_cast<size_t>(xColumn),static_cast<size_t>(i))+getXErrorU(i, datastore);
-                const double yvv=datastore->get(static_cast<size_t>(xColumn),static_cast<size_t>(i))-getXErrorL(i, datastore);
-                if (JKQTPIsOKFloat(yv) && JKQTPIsOKFloat(yvv) ) {
-                    if (start || yv>maxx) maxx=yv;
-                    if (start || yv<minx) minx=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                    if (start || yvv>maxx) maxx=yvv;
-                    if (start || yvv<minx) minx=yvv;
-                    xvsgz=yvv; SmallestGreaterZeroCompare_xvsgz();
-                    start=false;
-                }
-            }
-            return !start;
-        }
     }
-    return false;
 }
 
 void JKQTPFilledCurveYErrorGraph::drawErrorsAfter(JKQTPEnhancedPainter &painter)

lib/jkqtplotter/graphs/jkqtpimpulses.cpp

@@ -283,7 +283,6 @@ bool JKQTPImpulsesHorizontalGraph::getXMinMax(double &minx, double &maxx, double
 bool JKQTPImpulsesHorizontalGraph::getYMinMax(double &miny, double &maxy, double &smallestGreaterZero)
 {
     return getPositionsMinMax(miny, maxy, smallestGreaterZero);
-
 }
 
 void JKQTPImpulsesHorizontalGraph::setKeyColumn(int __value)
@@ -338,7 +337,6 @@ bool JKQTPImpulsesVerticalGraph::getXMinMax(double &minx, double &maxx, double &
 bool JKQTPImpulsesVerticalGraph::getYMinMax(double &miny, double &maxy, double &smallestGreaterZero)
 {
     return getValuesMinMax(miny, maxy, smallestGreaterZero);
-
 }
 
 void JKQTPImpulsesVerticalGraph::draw(JKQTPEnhancedPainter& painter) {
@@ -439,53 +437,12 @@ bool JKQTPImpulsesHorizontalErrorGraph::usesColumn(int c) const
 
 bool JKQTPImpulsesHorizontalErrorGraph::getXMinMax(double &minx, double &maxx, double &smallestGreaterZero)
 {
-    if (xErrorColumn>=0 && xErrorStyle!=JKQTPNoError) {
+    if (xErrorColumn<0 || xErrorStyle==JKQTPNoError) {
-        minx=0;
+        return getMinMaxWithBaseline(xColumn, minx, maxx, smallestGreaterZero);
-        maxx=0;
-        smallestGreaterZero=0;
-        if (getBaseline()>0) {
-            smallestGreaterZero=getBaseline();
-            minx=getBaseline();
-            maxx=getBaseline();
-        }
-
-        if (parent==nullptr) return false;
-
-        JKQTPDatastore* datastore=parent->getDatastore();
-        int imax=0;
-        int imin=0;
-        if (getIndexRange(imin, imax)) {
-
-
-            for (int i=imin; i<imax; i++) {
-                double yv=getBaseline();
-                if (JKQTPIsOKFloat(yv)) {
-                    if (yv>maxx) maxx=yv;
-                    if (yv<minx) minx=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                }
-                yv=datastore->get(static_cast<size_t>(xColumn),static_cast<size_t>(i))+datastore->get(static_cast<size_t>(xErrorColumn),static_cast<size_t>(i));
-                if (JKQTPIsOKFloat(yv)) {
-                    if (yv>maxx) maxx=yv;
-                    if (yv<minx) minx=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                }
-                yv=datastore->get(static_cast<size_t>(xColumn),static_cast<size_t>(i))-datastore->get(static_cast<size_t>(xErrorColumn),static_cast<size_t>(i));
-                if (JKQTPIsOKFloat(yv)) {
-                    if (yv>maxx) maxx=yv;
-                    if (yv<minx) minx=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                }
-            }
-            return true;
-        }
     } else {
-        return JKQTPImpulsesHorizontalGraph::getXMinMax(minx,maxx,smallestGreaterZero);
+        return getMinMaxWithErrorsAndBaseline(xColumn, xErrorColumn, xErrorColumnLower, xErrorSymmetric, minx, maxx, smallestGreaterZero);
     }
-    return false;
+
 }
 
 int JKQTPImpulsesHorizontalErrorGraph::getErrorColumn() const
@@ -614,60 +571,11 @@ bool JKQTPImpulsesVerticalErrorGraph::usesColumn(int c) const
 
 bool JKQTPImpulsesVerticalErrorGraph::getYMinMax(double &miny, double &maxy, double &smallestGreaterZero)
 {
-    if (yErrorColumn>=0 && yErrorStyle!=JKQTPNoError) {
+    if (yErrorColumn<0 || yErrorStyle==JKQTPNoError) {
-        miny=0;
+        return getMinMaxWithBaseline(yColumn, miny, maxy, smallestGreaterZero);
-        maxy=0;
-        smallestGreaterZero=0;
-        if (getBaseline()>0) {
-            smallestGreaterZero=getBaseline();
-            miny=getBaseline();
-            maxy=getBaseline();
-        }
-
-        if (parent==nullptr) return false;
-
-        JKQTPDatastore* datastore=parent->getDatastore();
-        int imax=0;
-        int imin=0;
-        if (getIndexRange(imin, imax)) {
-
-
-            for (int i=imin; i<imax; i++) {
-                double yv=getBaseline();
-                if (JKQTPIsOKFloat(yv)) {
-                    if (yv>maxy) maxy=yv;
-                    if (yv<miny) miny=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                }
-                yv=datastore->get(static_cast<size_t>(yColumn),static_cast<size_t>(i));
-                if (JKQTPIsOKFloat(yv)) {
-                    if (yv>maxy) maxy=yv;
-                    if (yv<miny) miny=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                }
-                yv=datastore->get(static_cast<size_t>(yColumn),static_cast<size_t>(i))+datastore->get(static_cast<size_t>(yErrorColumn),static_cast<size_t>(i));
-                if (JKQTPIsOKFloat(yv)) {
-                    if (yv>maxy) maxy=yv;
-                    if (yv<miny) miny=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                }
-                yv=datastore->get(static_cast<size_t>(yColumn),static_cast<size_t>(i))-datastore->get(static_cast<size_t>(yErrorColumn),static_cast<size_t>(i));
-                if (JKQTPIsOKFloat(yv)) {
-                    if (yv>maxy) maxy=yv;
-                    if (yv<miny) miny=yv;
-                    double xvsgz;
-                    xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
-                }
-            }
-            return true;
-        }
     } else {
-        return JKQTPImpulsesVerticalGraph::getYMinMax(miny,maxy,smallestGreaterZero);
+        return getMinMaxWithErrorsAndBaseline(yColumn, yErrorColumn, yErrorColumnLower, yErrorSymmetric, miny, maxy, smallestGreaterZero);
     }
-    return false;
 }
 
 

lib/jkqtplotter/jkqtpcoordinateaxesstyle.h

@@ -89,7 +89,7 @@ class JKQTPLOTTER_LIB_EXPORT JKQTPCoordinateAxisStyle {
     public:
         JKQTPCoordinateAxisStyle();
 
-        JKQTPCoordinateAxisStyle(const JKQTBasePlotterStyle& baseStyle);
+        explicit JKQTPCoordinateAxisStyle(const JKQTBasePlotterStyle& baseStyle);
 
 
         /** \brief loads the plot properties from a <a href="http://doc.qt.io/qt-5/qsettings.html")">QSettings</a> object
@@ -250,7 +250,7 @@ class JKQTPLOTTER_LIB_EXPORT JKQTPColorbarCoordinateAxisStyle: public JKQTPCoord
         JKQTPColorbarCoordinateAxisStyle();
 
         /** \copydoc JKQTPCoordinateAxisStyle::JKQTPCoordinateAxisStyle(const JKQTBasePlotterStyle&) */
-        JKQTPColorbarCoordinateAxisStyle(const JKQTBasePlotterStyle& baseStyle);
+        explicit JKQTPColorbarCoordinateAxisStyle(const JKQTBasePlotterStyle& baseStyle);
     private:
         /** \brief modifies the members to match the requirements of colorbar axes */
         void initMembersForColorbars();

lib/jkqtplotter/jkqtpgraphsbase.cpp

@@ -1034,6 +1034,106 @@ void JKQTPXYBaselineGraph::setBaseline(double __value)
     m_baseline=__value;
 }
 
+bool JKQTPXYBaselineGraph::getMinMaxWithBaseline(int dataColumn, double &minv, double &maxv, double &smallestGreaterZero)
+{
+    minv=0;
+    maxv=0;
+    smallestGreaterZero=0;
+    if (getBaseline()>0) {
+        smallestGreaterZero=getBaseline();
+        minv=getBaseline();
+        maxv=getBaseline();
+    }
+
+    if (parent==nullptr) return false;
+
+    JKQTPDatastore* datastore=parent->getDatastore();
+    int imax=0;
+    int imin=0;
+    if (getIndexRange(imin, imax)) {
+
+
+        for (int i=imin; i<imax; i++) {
+            double yv=getBaseline();
+            if (JKQTPIsOKFloat(yv)) {
+                if (yv>maxv) maxv=yv;
+                if (yv<minv) minv=yv;
+                double xvsgz;
+                xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
+            }
+            yv=datastore->get(static_cast<size_t>(dataColumn),static_cast<size_t>(i));
+            if (JKQTPIsOKFloat(yv)) {
+                if (yv>maxv) maxv=yv;
+                if (yv<minv) minv=yv;
+                double xvsgz;
+                xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
+            }
+        }
+        return true;
+    }
+    return false;
+}
+
+bool JKQTPXYBaselineGraph::getMinMaxWithErrorsAndBaseline(int dataColumn, int errorColumn, int errorColumnLower, bool errorSymmetric, double &minv, double &maxv, double &smallestGreaterZero)
+{
+    bool start=false;
+    minv=getBaseline();
+    maxv=getBaseline();
+    smallestGreaterZero=0;
+    if (getBaseline()>0) {
+        smallestGreaterZero=getBaseline();
+        minv=getBaseline();
+        maxv=getBaseline();
+    }
+
+    if (parent==nullptr) return false;
+
+    const JKQTPDatastore* datastore=parent->getDatastore();
+    int imax=0;
+    int imin=0;
+    if (getIndexRange(imin, imax)) {
+
+
+        for (int i=imin; i<imax; i++) {
+            const double yv=datastore->get(static_cast<size_t>(dataColumn),static_cast<size_t>(i))+getErrorU(i, datastore, errorColumn);
+            const double yvv=datastore->get(static_cast<size_t>(dataColumn),static_cast<size_t>(i))-getErrorL(i, datastore, errorColumn, errorColumnLower, errorSymmetric);
+            if (JKQTPIsOKFloat(yv) && JKQTPIsOKFloat(yvv) ) {
+                if (start || yv>maxv) maxv=yv;
+                if (start || yv<minv) minv=yv;
+                double xvsgz;
+                xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
+                if (start || yvv>maxv) maxv=yvv;
+                if (start || yvv<minv) minv=yvv;
+                xvsgz=yvv; SmallestGreaterZeroCompare_xvsgz();
+                start=false;
+            }
+        }
+        return !start;
+    }
+    return false;
+}
+
+double JKQTPXYBaselineGraph::getErrorU(int i, const JKQTPDatastore *ds, int xErrorColumn) const
+{
+    if (ds && xErrorColumn>=0 && i>=0 && i<static_cast<int>(ds->getRows(xErrorColumn))) {
+        return ds->get(xErrorColumn, static_cast<size_t>(i));
+    }
+    return 0.0;
+}
+
+double JKQTPXYBaselineGraph::getErrorL(int i, const JKQTPDatastore *ds, int xErrorColumn, int xErrorColumnLower, bool xErrorSymmetric) const
+{
+    if (ds) {
+        if (xErrorSymmetric) {
+            if (xErrorColumn>=0 && i>=0 && i<static_cast<int>(ds->getRows(xErrorColumn))) return ds->get(xErrorColumn, static_cast<size_t>(i));
+        } else {
+            if (xErrorColumnLower>=0 && i>=0 && i<static_cast<int>(ds->getRows(xErrorColumnLower))) return ds->get(xErrorColumnLower, static_cast<size_t>(i));
+        }
+    }
+    return 0.0;
+}
+
+
 JKQTPPlotAnnotationElement::JKQTPPlotAnnotationElement(JKQTBasePlotter *parent):
     JKQTPPlotElement(parent)
 {

lib/jkqtplotter/jkqtpgraphsbase.h

@@ -688,12 +688,24 @@ public slots:
     void setBaseline(double __value);
 
 protected:
+    /** \brief can be called by JKQTPGraph::getXMinMax() or JKQTPGraph::getYMinMax() calculates min/max/... for data from the given column, including the baseline */
+    bool getMinMaxWithBaseline(int dataColumn, double &minv, double &maxv, double &smallestGreaterZero);
+    /** \brief can be called by JKQTPGraph::getXMinMax() or JKQTPGraph::getYMinMax() calculates min/max/... for data from the given column, including the baseline and an optional error */
+    bool getMinMaxWithErrorsAndBaseline(int dataColumn, int errorColumn, int errorColumnLower, bool errorSymmetric, double &minv, double &maxv, double &smallestGreaterZero);
+
 
     /** \brief baseline of the plot (NOTE: 0 is interpreted as until plot border in log-mode!!!)
      *
      * \image html impulsesplot_baseline.png
      */
     double m_baseline;
+
+private:
+    /** \brief returns the upper error for the i-th datapoint, read from datastore \a ds */
+    double getErrorU(int i, const JKQTPDatastore* ds, int xErrorColumn) const;
+    /** \brief returns the lower error for the i-th datapoint, read from datastore \a ds */
+    double getErrorL(int i, const JKQTPDatastore *ds, int xErrorColumn, int xErrorColumnLower, bool xErrorSymmetric) const;
+
 };
 
 

lib/jkqtplotter/jkqtpgraphsbasestyle.h

@@ -121,7 +121,7 @@ class JKQTPLOTTER_LIB_EXPORT JKQTGeometricSpecificStyleProperties: public JKQTGr
       Q_GADGET
 #endif
 public:
-     JKQTGeometricSpecificStyleProperties(const JKQTBasePlotterStyle& parent);
+     explicit JKQTGeometricSpecificStyleProperties(const JKQTBasePlotterStyle& parent);
      JKQTGeometricSpecificStyleProperties(const JKQTBasePlotterStyle& parent, const JKQTGraphsSpecificStyleProperties& other);
      JKQTGeometricSpecificStyleProperties(JKQTPPlotStyleType type, const JKQTBasePlotterStyle& parent);
      JKQTGeometricSpecificStyleProperties(JKQTPPlotStyleType type, const JKQTGraphsSpecificStyleProperties& other, const JKQTBasePlotterStyle &parent);
@@ -171,7 +171,7 @@ class JKQTPLOTTER_LIB_EXPORT JKQTAnnotationsSpecificStyleProperties: public JKQT
       Q_GADGET
 #endif
 public:
-     JKQTAnnotationsSpecificStyleProperties(const JKQTBasePlotterStyle& parent);
+     explicit JKQTAnnotationsSpecificStyleProperties(const JKQTBasePlotterStyle& parent);
      JKQTAnnotationsSpecificStyleProperties(const JKQTBasePlotterStyle& parent, const JKQTGraphsSpecificStyleProperties& other);
      JKQTAnnotationsSpecificStyleProperties(const JKQTAnnotationsSpecificStyleProperties& other)=default;
      JKQTAnnotationsSpecificStyleProperties(JKQTAnnotationsSpecificStyleProperties&& other)=default;
@@ -216,7 +216,7 @@ class JKQTPLOTTER_LIB_EXPORT JKQTBarchartSpecificStyleProperties: public JKQTGra
      Q_GADGET
 #endif
 public:
-    JKQTBarchartSpecificStyleProperties(const JKQTBasePlotterStyle& parent);
+    explicit JKQTBarchartSpecificStyleProperties(const JKQTBasePlotterStyle& parent);
     JKQTBarchartSpecificStyleProperties(const JKQTBasePlotterStyle& parent, const JKQTGraphsSpecificStyleProperties& other);
     JKQTBarchartSpecificStyleProperties(const JKQTBarchartSpecificStyleProperties& other)=default;
     JKQTBarchartSpecificStyleProperties(JKQTBarchartSpecificStyleProperties&& other)=default;
@@ -262,7 +262,7 @@ class JKQTPLOTTER_LIB_EXPORT JKQTImpulseSpecificStyleProperties: public JKQTGrap
      Q_GADGET
 #endif
 public:
-    JKQTImpulseSpecificStyleProperties(const JKQTBasePlotterStyle& parent);
+    explicit JKQTImpulseSpecificStyleProperties(const JKQTBasePlotterStyle& parent);
     JKQTImpulseSpecificStyleProperties(const JKQTBasePlotterStyle& parent, const JKQTGraphsSpecificStyleProperties& other);
     JKQTImpulseSpecificStyleProperties(const JKQTImpulseSpecificStyleProperties& other)=default;
     JKQTImpulseSpecificStyleProperties(JKQTImpulseSpecificStyleProperties&& other)=default;
@@ -301,7 +301,7 @@ class JKQTPLOTTER_LIB_EXPORT JKQTGraphsBaseStyle {
       Q_GADGET
 #endif
     public:
-        JKQTGraphsBaseStyle(const JKQTBasePlotterStyle& parent);
+        explicit JKQTGraphsBaseStyle(const JKQTBasePlotterStyle& parent);
 
 
 

lib/jkqtplotter/jkqtpkeystyle.h

@@ -40,7 +40,7 @@ class JKQTPLOTTER_LIB_EXPORT JKQTPKeyStyle  {
         Q_GADGET
     public:
         JKQTPKeyStyle();
-        JKQTPKeyStyle(const JKQTBasePlotterStyle& baseStyle);
+        explicit JKQTPKeyStyle(const JKQTBasePlotterStyle& baseStyle);
 
 
         /** \brief loads the plot properties from a <a href="http://doc.qt.io/qt-5/qsettings.html")">QSettings</a> object

lib/jkqtplotter/jkqtplotter.cpp

@@ -653,7 +653,6 @@ void JKQTPlotter::paintUserAction() {
                         QVector<QString> txts;
                         QVector<QColor> colors;
                         const int txtoffset=4;
-                        QString txt;
                         double ascent=0,descent=0,strikeout=0,width=0;
                         getPlotter()->getMathText()->setFontSize(plotterStyle.userActionFontSize);
                         getPlotter()->getMathText()->setFontSpecial(plotterStyle.userActionFontName);
@@ -1373,7 +1372,7 @@ void JKQTPlotter::synchronizeToMaster(JKQTPlotter *master, JKQTBasePlotter::Sync
     if (masterPlotterX) disconnect(masterPlotterX->getPlotter(), SIGNAL(plotScalingRecalculated()), this, SLOT(masterPlotScalingRecalculated()));
     if (masterPlotterY) disconnect(masterPlotterY->getPlotter(), SIGNAL(plotScalingRecalculated()), this, SLOT(masterPlotScalingRecalculated()));
 
-    plotter->synchronizeToMaster(master->getPlotter(), synchronizeDirection, synchronizeAxisLength, synchronizeZoomingMasterToSlave, synchronizeZoomingSlaveToMaster);
+    if (master) plotter->synchronizeToMaster(master->getPlotter(), synchronizeDirection, synchronizeAxisLength, synchronizeZoomingMasterToSlave, synchronizeZoomingSlaveToMaster);
 
     if (synchronizeDirection==JKQTBasePlotter::sdXAxis || synchronizeDirection==JKQTBasePlotter::sdXYAxes) {
         masterPlotterX=master;