diff --git a/qad/graphic/graphic.cpp b/qad/graphic/graphic.cpp
index c53be95..59c6c42 100644
--- a/qad/graphic/graphic.cpp
+++ b/qad/graphic/graphic.cpp
@@ -480,7 +480,7 @@ void Graphic::clear() {
 		graphics[i].max_x = 0.;
 		graphics[i].cvrect = QRectF();
 	}
-	on_buttonAutofit_clicked();
+	if (isFit) on_buttonAutofit_clicked();
 }
 
 
diff --git a/qad/graphic/graphic.h b/qad/graphic/graphic.h
index 55bf1aa..6bff77c 100644
--- a/qad/graphic/graphic.h
+++ b/qad/graphic/graphic.h
@@ -291,8 +291,8 @@ public slots:
 	void addPoint(const QPointF & p, bool update = true) {addPoint(p, curGraphic, update);}
 	void addPoint(double x, double y, int graphic, bool update = true) {addPoint(QPointF(x, y), graphic, update);}
 	void addPoint(double x, double y, bool update = true) {addPoint(QPointF(x, y), update);}
-	void addPoint(double y, int graphic, bool update = true) {addPoint(QPointF(graphics.at(graphic).max_x + inc_x, y), graphic, update);}
-	void addPoint(double y, bool update = true) {addPoint(QPointF(graphics[curGraphic].max_x + inc_x, y), update);}
+	void addPoint(double y, int graphic, bool update = true) {if (graphics[graphic].polyline.isEmpty()) addPoint(QPointF(0.0, y), graphic, update); else addPoint(QPointF(graphics[graphic].max_x + inc_x, y), graphic, update);}
+	void addPoint(double y, bool update = true) {if (graphics[curGraphic].polyline.isEmpty()) addPoint(QPointF(0.0, y), update); else addPoint(QPointF(graphics[curGraphic].max_x + inc_x, y), update);}
 	void setGraphicData(const QVector<QPointF> & g, int graphic, bool update_ = true);
 	void setGraphicData(const QVector<QPointF> & g) {setGraphicData(g, curGraphic);}
 	void setGraphicProperties(const QString & name, const QColor & color = Qt::darkRed, Qt::PenStyle style = Qt::SolidLine, double width = 0., bool visible = true) {setGraphicProperties(curGraphic, name, color, style, width, visible);}