many changes

PlotErrFunc.h

@@ -19,6 +19,7 @@ class PlotErrFunc {
 	};
 
 	std::vector<Entry> entries;
+	std::vector<K::GnuplotPlotElementLines*> lines;
 
 	K::Gnuplot gp;
 	K::GnuplotPlot gplot;
@@ -39,6 +40,15 @@ public:
 	/** add one curve */
 	void add(const std::string name, const K::Statistics<float> stats) {
 		entries.push_back(Entry(name, stats));
+		K::GnuplotPlotElementLines* gpel = new K::GnuplotPlotElementLines();
+		gpel->setTitle(name);
+		gpel->setLineWidth(2);
+		lines.push_back(gpel);
+		gplot.add(gpel);
+	}
+
+	void clear() {
+		entries.clear();
 	}
 
 	K::Gnuplot& getGP() {
@@ -57,12 +67,11 @@ public:
 		for (size_t i = 0; i < entries.size(); ++i) {
 
 			const Entry e = entries[i];
+			K::GnuplotPlotElementLines* line = lines[i];
 
-			K::GnuplotPlotElementLines* line = new K::GnuplotPlotElementLines();
-			line->setTitle(e.name);
+			line->clear();
+			//line.setTitle(e.name);
 			line->setColorHex(colors[i]);
-			line->setLineWidth(2);
-			gplot.add(line);
 
 			// 0 - 80%
 			for (int i = 0; i <= 85; i+= 5) {
@@ -83,7 +92,6 @@ public:
 		}
 
 		gp.flush();
-		gp.close();
 
 	}