ChartDirector 6.1 (Java Edition)

Surface Chart (3)

This example demonstrates using deep perspective. It also demonstrates surface grid lines of different line styles.

Source Code Listing

[JSP Version] jspdemo/surface3.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 = // Sin(x * x / 128 - y * y / 256 + 3) * Cos(x / 4 + 1 - Exp(y / 8)) 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] = Math.sin(x * x / 128.0 - y * y / 256.0 + 3) * Math.cos(x / 4.0 + 1 - Math.exp(y / 8.0)); } } // Create a SurfaceChart object of size 750 x 600 pixels SurfaceChart c = new SurfaceChart(750, 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 (380, 260), and set width x depth x height to 360 x 360 x // 270 pixels c.setPlotRegion(380, 260, 360, 360, 270); // Set the elevation and rotation angles to 30 and 210 degrees c.setViewAngle(30, 210); // Set the perspective level to 60 c.setPerspective(60); // 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); // Use semi-transparent black (c0000000) for x and y major surface grid lines. Use dotted style for // x and y minor surface grid lines. int majorGridColor = 0xc0000000; int minorGridColor = c.dashLineColor(majorGridColor, Chart.DotLine); c.setSurfaceAxisGrid(majorGridColor, majorGridColor, minorGridColor, minorGridColor); // Set contour lines to semi-transparent white (80ffffff) c.setContourColor(0x80ffffff); // Add a color axis (the legend) in which the left center is anchored at (665, 280). Set the length // to 200 pixels and the labels on the right side. c.setColorAxis(665, 280, Chart.Left, 200, Chart.Right); // Set the x, y and z axis titles using 12 points Arial Bold font c.xAxis().setTitle("X Title\nPlaceholder", "Arial Bold", 12); c.yAxis().setTitle("Y Title\nPlaceholder", "Arial Bold", 12); c.zAxis().setTitle("Z Title Placeholder", "Arial Bold", 12); // Output the chart String chart1URL = c.makeSession(request, "chart1", Chart.JPG); %>
Surface Chart (3)

View Source Code
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 ```import java.awt.*; import java.awt.event.*; import javax.swing.*; import ChartDirector.*; public class surface3 implements DemoModule { //Name of demo program public String toString() { return "Surface Chart (3)"; } //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 = Sin(x * x / 128 - y * y / 256 + 3) * Cos(x / 4 + 1 - Exp(y / 8)) 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] = Math.sin(x * x / 128.0 - y * y / 256.0 + 3) * Math.cos(x / 4.0 + 1 - Math.exp(y / 8.0)); } } // Create a SurfaceChart object of size 750 x 600 pixels SurfaceChart c = new SurfaceChart(750, 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 (380, 260), and set width x depth x height to 360 x // 360 x 270 pixels c.setPlotRegion(380, 260, 360, 360, 270); // Set the elevation and rotation angles to 30 and 210 degrees c.setViewAngle(30, 210); // Set the perspective level to 60 c.setPerspective(60); // 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); // Use semi-transparent black (c0000000) for x and y major surface grid lines. Use dotted // style for x and y minor surface grid lines. int majorGridColor = 0xc0000000; int minorGridColor = c.dashLineColor(majorGridColor, Chart.DotLine); c.setSurfaceAxisGrid(majorGridColor, majorGridColor, minorGridColor, minorGridColor); // Set contour lines to semi-transparent white (80ffffff) c.setContourColor(0x80ffffff); // Add a color axis (the legend) in which the left center is anchored at (665, 280). Set the // length to 200 pixels and the labels on the right side. c.setColorAxis(665, 280, Chart.Left, 200, Chart.Right); // Set the x, y and z axis titles using 12 points Arial Bold font c.xAxis().setTitle("X Title\nPlaceholder", "Arial Bold", 12); c.yAxis().setTitle("Y Title\nPlaceholder", "Arial Bold", 12); c.zAxis().setTitle("Z Title Placeholder", "Arial Bold", 12); // 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 surface3(); //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); } }```