ContourPlot STATBEAN®

Other properties are inherited from the java.awt.Canvas class and from the general GraphicalStatbean class for this contour plot software.

Contour Mapping Software Code Sample 

//create a datasource bean 
FileDataSource fileDataSource1 = new STATBEANS.FileDataSource(); 

//set the file name to be read 
fileDataSource1.setFileName("c:\\statbeans\\samples\\cardata.txt"); 

//create a plot bean 
ContourPlot contourPlot1 = new STATBEANS.ContourPlot(); 

//set limits for the x and y dimensions 
double xmin=0.0; 
double xmax=10; 
double ymin=0.0; 
double ymax=20.0; 
contourPlot1.setXMinimum(xmin); 
contourPlot1.setXMaximum(xmax); 
contourPlot1.setYMinimum(ymin); 
contourPlot1.setYMaximum(ymax); 

//set the number of points along each axis 
int n=41; 
contourPlot1.setGridSize(n); 

//create a matrix with the height of the surface 
double grid[][]=new double[n][n]; 
for(int i=0; i<n; i++) 
{ 
double x=xmin+i*xmax/(n-1); 
for(int j=0; j<n; j++) 
{ 
double y=ymin+j*ymax/(n-1); 
grid[i][j]=200.0+3*(x-5)*(x-5)-2*(y-10)*(y-10); 
} 
} 
contourPlot1.setSurfaceGrid(grid); 

//position the legend 
contourPlot1.setLegendVerticalPosition(1.1); 
contourPlot1.setLegendHorizontalPosition(1.1); 

//add the plot to the application frame 
add(contourPlot1); 

//make the plot a listener for changes in the ProgramDataSource bean 
programDataSource1.addDataChangeListener(contourPlot1.listenerForDataChange); 

//notify all listeners 
programDataSource1.updateListeners();