diff --git a/src/Mod/Sketcher/App/Constraint.cpp b/src/Mod/Sketcher/App/Constraint.cpp
index 35e78685e..264903720 100644
--- a/src/Mod/Sketcher/App/Constraint.cpp
+++ b/src/Mod/Sketcher/App/Constraint.cpp
@@ -137,11 +137,11 @@ double Constraint::getPresentationValue() const
     switch (Type) {
     case Distance:
     case Radius:
-        return std::abs(Value);
+        return Value;
     case DistanceX:
     case DistanceY:
         if (FirstPos == Sketcher::none || Second != Sketcher::Constraint::GeoUndef)
-            return std::abs(Value);
+            return Value;
         else
             return Value;
     case Angle:
diff --git a/src/Mod/Sketcher/Gui/CommandConstraints.cpp b/src/Mod/Sketcher/Gui/CommandConstraints.cpp
index 0175c311a..2b6921e46 100644
--- a/src/Mod/Sketcher/Gui/CommandConstraints.cpp
+++ b/src/Mod/Sketcher/Gui/CommandConstraints.cpp
@@ -128,7 +128,7 @@ void openEditDatumDialog(Sketcher::SketchObject* sketch, int ConstrNbr)
             ((Constr->Type == Sketcher::DistanceX || Constr->Type == Sketcher::DistanceY) &&
              (Constr->FirstPos == Sketcher::none || Constr->Second != Sketcher::Constraint::GeoUndef)))
             // hide negative sign
-            init_val.setValue(std::abs(datum));
+            init_val.setValue(datum);
 
         else // show negative sign
             init_val.setValue(datum);
@@ -145,15 +145,6 @@ void openEditDatumDialog(Sketcher::SketchObject* sketch, int ConstrNbr)
                 ui_ins_datum.labelEdit->pushToHistory();
 
                 double newDatum = newQuant.getValue();
-                if (Constr->Type == Sketcher::Angle ||
-                    ((Constr->Type == Sketcher::DistanceX || Constr->Type == Sketcher::DistanceY) &&
-                     (Constr->FirstPos == Sketcher::none || Constr->Second != Sketcher::Constraint::GeoUndef))) {
-                    // Permit negative values to flip the sign of the constraint
-                    if (newDatum >= 0) // keep the old sign
-                        newDatum = ((datum >= 0) ? 1 : -1) * std::abs(newDatum);
-                    else // flip sign
-                        newDatum = ((datum >= 0) ? -1 : 1) * std::abs(newDatum);
-                }
 
                 try {
                     if (ui_ins_datum.labelEdit->hasExpression())
diff --git a/src/Mod/Sketcher/Gui/EditDatumDialog.cpp b/src/Mod/Sketcher/Gui/EditDatumDialog.cpp
index 8b2bd2388..04776d980 100644
--- a/src/Mod/Sketcher/Gui/EditDatumDialog.cpp
+++ b/src/Mod/Sketcher/Gui/EditDatumDialog.cpp
@@ -122,15 +122,7 @@ void EditDatumDialog::exec(bool atCursor)
 
         //ui_ins_datum.lineEdit->setParamGrpPath("User parameter:History/Sketcher/SetDatum");
 
-        // e.g. an angle or a distance X or Y applied on a line or two vertexes
-        if (Constr->Type == Sketcher::Angle ||
-            ((Constr->Type == Sketcher::DistanceX || Constr->Type == Sketcher::DistanceY) &&
-             (Constr->FirstPos == Sketcher::none || Constr->Second != Sketcher::Constraint::GeoUndef)))
-            // hide negative sign
-            init_val.setValue(std::abs(datum));
-
-        else // show negative sign
-            init_val.setValue(datum);
+        init_val.setValue(datum);
 
         // Enable label if we are modifying a driving constraint
         ui_ins_datum.labelEdit->setEnabled(Constr->isDriving);
@@ -150,15 +142,6 @@ void EditDatumDialog::exec(bool atCursor)
                 ui_ins_datum.labelEdit->pushToHistory();
 
                 double newDatum = newQuant.getValue();
-                if (Constr->Type == Sketcher::Angle ||
-                    ((Constr->Type == Sketcher::DistanceX || Constr->Type == Sketcher::DistanceY) &&
-                     (Constr->FirstPos == Sketcher::none || Constr->Second != Sketcher::Constraint::GeoUndef))) {
-                    // Permit negative values to flip the sign of the constraint
-                    if (newDatum >= 0) // keep the old sign
-                        newDatum = ((datum >= 0) ? 1 : -1) * std::abs(newDatum);
-                    else // flip sign
-                        newDatum = ((datum >= 0) ? -1 : 1) * std::abs(newDatum);
-                }
 
                 try {
                     Gui::Command::openCommand("Modify sketch constraints");
diff --git a/src/Mod/Sketcher/Gui/TaskSketcherConstrains.cpp b/src/Mod/Sketcher/Gui/TaskSketcherConstrains.cpp
index 90b095c6f..4ab90efaf 100644
--- a/src/Mod/Sketcher/Gui/TaskSketcherConstrains.cpp
+++ b/src/Mod/Sketcher/Gui/TaskSketcherConstrains.cpp
@@ -126,16 +126,16 @@ public:
                 name = QString::fromLatin1("%1 (%2)").arg(name).arg(Base::Quantity(constraint->getPresentationValue(),Base::Unit::Length).getUserString());
                 break;
             case Sketcher::DistanceX:
-                name = QString::fromLatin1("%1 (%2)").arg(name).arg(Base::Quantity(std::abs(constraint->getPresentationValue()),Base::Unit::Length).getUserString());
+                name = QString::fromLatin1("%1 (%2)").arg(name).arg(Base::Quantity(constraint->getPresentationValue(),Base::Unit::Length).getUserString());
                 break;
             case Sketcher::DistanceY:
-                name = QString::fromLatin1("%1 (%2)").arg(name).arg(Base::Quantity(std::abs(constraint->getPresentationValue()),Base::Unit::Length).getUserString());
+                name = QString::fromLatin1("%1 (%2)").arg(name).arg(Base::Quantity(constraint->getPresentationValue(),Base::Unit::Length).getUserString());
                 break;
             case Sketcher::Radius:
                 name = QString::fromLatin1("%1 (%2)").arg(name).arg(Base::Quantity(constraint->getPresentationValue(),Base::Unit::Length).getUserString());
                 break;
             case Sketcher::Angle:
-                name = QString::fromLatin1("%1 (%2)").arg(name).arg(Base::Quantity(Base::toDegrees<double>(std::abs(constraint->getPresentationValue())),Base::Unit::Angle).getUserString());
+                name = QString::fromLatin1("%1 (%2)").arg(name).arg(Base::Quantity(Base::toDegrees<double>(constraint->getPresentationValue()),Base::Unit::Angle).getUserString());
                 break;
             case Sketcher::SnellsLaw: {
                 double v = constraint->getPresentationValue();
diff --git a/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp b/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
index 3fc73bd9b..850397670 100644
--- a/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
+++ b/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
@@ -3525,12 +3525,7 @@ Restart:
                             break;
 
                         SoDatumLabel *asciiText = dynamic_cast<SoDatumLabel *>(sep->getChild(CONSTRAINT_SEPARATOR_INDEX_MATERIAL_OR_DATUMLABEL));
-                        if ((Constr->Type == DistanceX || Constr->Type == DistanceY) &&
-                            Constr->FirstPos != Sketcher::none && Constr->Second == Constraint::GeoUndef)
-                            // display negative sign for absolute coordinates
-                            asciiText->string = SbString(Base::Quantity(Constr->getPresentationValue(),Base::Unit::Length).getUserString().toUtf8().constData());
-                        else // hide negative sign
-                            asciiText->string = SbString(Base::Quantity(std::abs(Constr->getPresentationValue()),Base::Unit::Length).getUserString().toUtf8().constData());
+                        asciiText->string = SbString(Base::Quantity(Constr->getPresentationValue(),Base::Unit::Length).getUserString().toUtf8().constData());
 
                         if (Constr->Type == Distance)
                             asciiText->datumtype = SoDatumLabel::DISTANCE;
@@ -3829,7 +3824,7 @@ Restart:
                             break;
 
                         SoDatumLabel *asciiText = dynamic_cast<SoDatumLabel *>(sep->getChild(CONSTRAINT_SEPARATOR_INDEX_MATERIAL_OR_DATUMLABEL));
-                        asciiText->string    = SbString(Base::Quantity(Base::toDegrees<double>(std::abs(Constr->getPresentationValue())),Base::Unit::Angle).getUserString().toUtf8().constData());
+                        asciiText->string    = SbString(Base::Quantity(Base::toDegrees<double>(Constr->getPresentationValue()),Base::Unit::Angle).getUserString().toUtf8().constData());
                         asciiText->datumtype = SoDatumLabel::ANGLE;
                         asciiText->param1    = Constr->LabelDistance;
                         asciiText->param2    = startangle;