diff --git a/src/geometry/vequidistant.cpp b/src/geometry/vequidistant.cpp
index 66407cf34..285a6eecd 100644
--- a/src/geometry/vequidistant.cpp
+++ b/src/geometry/vequidistant.cpp
@@ -157,7 +157,7 @@ QPainterPath VEquidistant::ContourPath(const quint32 &idDetail, const VContainer
     return path;
 }
 
-qreal VEquidistant::GetLengthContour(const QVector<QPointF> &contour, const QVector<QPointF> &newPoints) const
+qreal VEquidistant::GetLengthContour(const QVector<QPointF> &contour, const QVector<QPointF> &newPoints)
 {
     qreal length = 0;
     QVector<QPointF> points;
@@ -170,7 +170,7 @@ qreal VEquidistant::GetLengthContour(const QVector<QPointF> &contour, const QVec
     return length;
 }
 
-QVector<QPointF> VEquidistant::biasPoints(const QVector<QPointF> &points, const qreal &mx, const qreal &my) const
+QVector<QPointF> VEquidistant::biasPoints(const QVector<QPointF> &points, const qreal &mx, const qreal &my)
 {
     QVector<QPointF> p;
     for (qint32 i = 0; i < points.size(); ++i)
@@ -183,7 +183,7 @@ QVector<QPointF> VEquidistant::biasPoints(const QVector<QPointF> &points, const
     return p;
 }
 
-QVector<QPointF> VEquidistant::CorrectEquidistantPoints(const QVector<QPointF> &points) const
+QVector<QPointF> VEquidistant::CorrectEquidistantPoints(const QVector<QPointF> &points)
 {
     QVector<QPointF> correctPoints;
     if (points.size()<4)//Better don't check if only three points. We can destroy equidistant.
@@ -295,7 +295,7 @@ QPainterPath VEquidistant::Equidistant(QVector<QPointF> points, const Detail::Eq
     return ekv;
 }
 
-QVector<QPointF> VEquidistant::CheckLoops(const QVector<QPointF> &points) const
+QVector<QPointF> VEquidistant::CheckLoops(const QVector<QPointF> &points)
 {
     QVector<QPointF> ekvPoints;
     /*If we got less than 4 points no need seek loops.*/
@@ -353,7 +353,7 @@ QVector<QPointF> VEquidistant::CheckLoops(const QVector<QPointF> &points) const
     return ekvPoints;
 }
 
-QVector<QPointF> VEquidistant::GetReversePoint(const QVector<QPointF> &points) const
+QVector<QPointF> VEquidistant::GetReversePoint(const QVector<QPointF> &points)
 {
     Q_ASSERT(points.size() > 0);
     QVector<QPointF> reversePoints;
@@ -421,7 +421,7 @@ QLineF VEquidistant::ParallelLine(const QLineF &line, qreal width) const
     return paralel;
 }
 
-QPointF VEquidistant::SingleParallelPoint(const QLineF &line, const qreal &angle, const qreal &width) const
+QPointF VEquidistant::SingleParallelPoint(const QLineF &line, const qreal &angle, const qreal &width)
 {
     Q_ASSERT(width > 0);
     QLineF pLine = line;
diff --git a/src/geometry/vequidistant.h b/src/geometry/vequidistant.h
index 652788fbb..2d261a0f4 100644
--- a/src/geometry/vequidistant.h
+++ b/src/geometry/vequidistant.h
@@ -52,7 +52,7 @@ private:
      * @param newPoints point whos we try to add to contour.
      * @return length length of contour.
      */
-    qreal            GetLengthContour(const QVector<QPointF> &contour, const QVector<QPointF> &newPoints) const;
+    static qreal     GetLengthContour(const QVector<QPointF> &contour, const QVector<QPointF> &newPoints);
     /**
      * @brief biasPoints bias point.
      * @param points vector of points.
@@ -60,13 +60,13 @@ private:
      * @param my offset respect to y.
      * @return new vector biased points.
      */
-    QVector<QPointF> biasPoints(const QVector<QPointF> &points, const qreal &mx, const qreal &my) const;
+    static QVector<QPointF> biasPoints(const QVector<QPointF> &points, const qreal &mx, const qreal &my);
     /**
      * @brief CorrectEquidistantPoints clear equivalent points and remove point on line from equdistant.
      * @param points list of points equdistant.
      * @return corrected list.
      */
-    QVector<QPointF> CorrectEquidistantPoints(const QVector<QPointF> &points) const;
+    static QVector<QPointF> CorrectEquidistantPoints(const QVector<QPointF> &points);
     /**
      * @brief Equidistant create equidistant painter path for detail.
      * @param points vector of points.
@@ -80,13 +80,13 @@ private:
      * @param points vector of points of equidistant.
      * @return vector of points of equidistant.
      */
-    QVector<QPointF> CheckLoops(const QVector<QPointF> &points) const;
+    static QVector<QPointF> CheckLoops(const QVector<QPointF> &points);
     /**
      * @brief GetReversePoint return revers container of points.
      * @param points container with points.
      * @return reverced points.
      */
-    QVector<QPointF> GetReversePoint(const QVector<QPointF> &points) const;
+    static QVector<QPointF> GetReversePoint(const QVector<QPointF> &points);
     /**
      * @brief EkvPoint return vector of points of equidistant two lines. Last point of two lines must be equal.
      * @param line1 first line.
@@ -109,7 +109,7 @@ private:
      * @param width width to parallel line.
      * @return point of parallel line.
      */
-    QPointF          SingleParallelPoint(const QLineF &line, const qreal &angle, const qreal &width) const;
+    static QPointF   SingleParallelPoint(const QLineF &line, const qreal &angle, const qreal &width);
 };
 
 #endif // VEQUIDISTANT_H