SharpPlot Reference > SharpPlot Methods > DrawCloudChart Method

SharpPlot.DrawCloudChart Method

Draw 3D grid and construct 3D Scatter from x,y and z values.

Example

sp = new SharpPlot(180,120);
sp.SetMargins(0,12,18,4);
sp.SetMarkers(Marker.Bullet);
ydata = new int[] {19,27,31,12,19,23};
xdata = new int[] {7,31,29,14,16,24};
zdata = new int[] {12,65,77,7,9,112};
sp.CloudChartStyle = CloudChartStyles.WallShading|CloudChartStyles.GridLines|
         CloudChartStyles.Risers;
sp.SetMarkers(Marker.Ball);
sp.Perspective = 6;
sp.SetAxisStyle(Color.Gray,LineStyle.Solid,0.5);
sp.DrawCloudChart(xdata,ydata,zdata);

The short tutorial shows a few of the possibilities and some sample code.

Overloads

• public void DrawCloudChart(int[] xValues,int[] yValues,int[] zValues);
• public void DrawCloudChart(string[] xCategories,int[] yValues,int[] zValues);
• public void DrawCloudChart(int[] xValues,string[] yCategories,int[] zValues);
• public void DrawCloudChart(double[] xValues,double[] yValues,double[] zValues);
• public void DrawCloudChart(string[] xCategories,int[] yValues,double[] zValues);
• public void DrawCloudChart(int[] xValues,string[] yCategories,double[] zValues);
• public void DrawCloudChart(string[] xCategories,string[] yCategories,int[] zValues);
• public void DrawCloudChart(string[] xCategories,string[] yCategories,double[] zValues);
• public void DrawCloudChart(int[] xValues,int[] yValues,double[][] zValues);
• public void DrawCloudChart(double[] xValues,double[] yValues,double[][] zValues);

Description

The Cloud chart is essentially a scatter-plot in 3 dimensions (maybe you are running an experiment in which you vary pressure and temperature, and are interested in the yield of the result). Rather than fitting a line to show the relationship between input and output, you fit a plane (if the data is linear in both x and y) or a curved surface. The markers are often located in XY-space by drawing risers from the ‘paper’ – this makes it much easier to visualise where they are positioned.

In fact, the Cloudchart is much more versatile than this, as it can also be drawn with lines connecting the points, or planes shaded down to the XY plane (the Z-value is always assumed to be drawn vertically). The Tutorial gives several more examples, and of course multiple charts may be combined using a common set of axes to make quite complex diagrams in 3 dimensions.

See also ...

Cloud charts for discrete XYZ data with perspective | SharpPlot Members | SharpPlot.CloudChartStyle Property

Send comments on this topic
© Dyalog Ltd 2021