Improved simple TimeSeriesCanvas

Fixes in RobotControlExample
Disable gravity by default in PhysicsServer

examples/RenderingExamples/TimeSeriesCanvas.h

@@ -0,0 +1,25 @@
+#ifndef TIME_SERIES_CANVAS_H
+#define TIME_SERIES_CANVAS_H
+
+class TimeSeriesCanvas
+{
+protected:
+	struct TimeSeriesInternalData* m_internalData;
+	void shift1PixelToLeft();
+	void grapicalPrintf(const char* str,	void* fontData, int rasterposx,int rasterposy,unsigned char red, unsigned char green, unsigned char blue, unsigned char alpha);
+
+public:
+	
+	TimeSeriesCanvas(struct Common2dCanvasInterface* canvasInterface, int width, int height, const char* windowTitle);
+	virtual ~TimeSeriesCanvas();
+
+	void setupTimeSeries(float yScale, int ticksPerSecond, int startTime);
+	void addDataSource(const char* dataSourceLabel, unsigned char red,unsigned char green,unsigned char blue);
+	void insertDataAtCurrentTime(float value, int dataSourceIndex, bool connectToPrevious);
+	float getCurrentTime() const;
+
+	virtual void nextTick();
+	
+};
+
+#endif//TIME_SERIES_CANVAS_H