ChartDirector 6.1 (Java Edition)

Surface Chart (1)

This example demonstrates the basic steps in creating surface charts.

Source Code Listing

[JSP Version] jspdemo/surface.jsp
 ```<%@page import="ChartDirector.*" %> <% // The x and y coordinates of the grid double[] dataX = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; double[] dataY = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; // The values at the grid points. In this example, we will compute the values using the formula z = // x * sin(y) + y * sin(x). double[] dataZ = new double[dataX.length * dataY.length]; for (int yIndex = 0; yIndex < dataY.length; ++yIndex) { double y = dataY[yIndex]; for (int xIndex = 0; xIndex < dataX.length; ++xIndex) { double x = dataX[xIndex]; dataZ[yIndex * dataX.length + xIndex] = x * Math.sin(y) + y * Math.sin(x); } } // Create a SurfaceChart object of size 720 x 600 pixels SurfaceChart c = new SurfaceChart(720, 600); // Add a title to the chart using 20 points Times New Roman Italic font c.addTitle("Surface Energy Density ", "Times New Roman Italic", 20); // Set the center of the plot region at (350, 280), and set width x depth x height to 360 x 360 x // 270 pixels c.setPlotRegion(350, 280, 360, 360, 270); // Set the data to use to plot the chart c.setData(dataX, dataY, dataZ); // Spline interpolate data to a 80 x 80 grid for a smooth surface c.setInterpolation(80, 80); // Add a color axis (the legend) in which the left center is anchored at (645, 270). Set the length // to 200 pixels and the labels on the right side. c.setColorAxis(645, 270, Chart.Left, 200, Chart.Right); // Set the x, y and z axis titles using 10 points Arial Bold font c.xAxis().setTitle("X (nm)", "Arial Bold", 10); c.yAxis().setTitle("Y (nm)", "Arial Bold", 10); c.zAxis().setTitle("Energy Density (J/m<*font,super*>2<*/font*>)", "Arial Bold", 10); // Output the chart String chart1URL = c.makeSession(request, "chart1", Chart.JPG); %>
Surface Chart (1)

View Source Code
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 ```import java.awt.*; import java.awt.event.*; import javax.swing.*; import ChartDirector.*; public class surface implements DemoModule { //Name of demo program public String toString() { return "Surface Chart (1)"; } //Number of charts produced in this demo public int getNoOfCharts() { return 1; } //Main code for creating charts public void createChart(ChartViewer viewer, int chartIndex) { // The x and y coordinates of the grid double[] dataX = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10} ; double[] dataY = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10} ; // The values at the grid points. In this example, we will compute the values using the // formula z = x * sin(y) + y * sin(x). double[] dataZ = new double[dataX.length * dataY.length]; for (int yIndex = 0; yIndex < dataY.length; ++yIndex) { double y = dataY[yIndex]; for (int xIndex = 0; xIndex < dataX.length; ++xIndex) { double x = dataX[xIndex]; dataZ[yIndex * dataX.length + xIndex] = x * Math.sin(y) + y * Math.sin(x); } } // Create a SurfaceChart object of size 720 x 600 pixels SurfaceChart c = new SurfaceChart(720, 600); // Add a title to the chart using 20 points Times New Roman Italic font c.addTitle("Surface Energy Density ", "Times New Roman Italic", 20); // Set the center of the plot region at (350, 280), and set width x depth x height to 360 x // 360 x 270 pixels c.setPlotRegion(350, 280, 360, 360, 270); // Set the data to use to plot the chart c.setData(dataX, dataY, dataZ); // Spline interpolate data to a 80 x 80 grid for a smooth surface c.setInterpolation(80, 80); // Add a color axis (the legend) in which the left center is anchored at (645, 270). Set the // length to 200 pixels and the labels on the right side. c.setColorAxis(645, 270, Chart.Left, 200, Chart.Right); // Set the x, y and z axis titles using 10 points Arial Bold font c.xAxis().setTitle("X (nm)", "Arial Bold", 10); c.yAxis().setTitle("Y (nm)", "Arial Bold", 10); c.zAxis().setTitle("Energy Density (J/m<*font,super*>2<*/font*>)", "Arial Bold", 10); // Output the chart viewer.setChart(c); } //Allow this module to run as standalone program for easy testing public static void main(String[] args) { //Instantiate an instance of this demo module DemoModule demo = new surface(); //Create and set up the main window JFrame frame = new JFrame(demo.toString()); frame.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) {System.exit(0);} }); frame.getContentPane().setBackground(Color.white); // Create the chart and put them in the content pane ChartViewer viewer = new ChartViewer(); demo.createChart(viewer, 0); frame.getContentPane().add(viewer); // Display the window frame.pack(); frame.setVisible(true); } }```