#include "chartdir.h"
#include <math.h>
int main(int argc, char *argv[])
{
// 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[(int)(sizeof(dataX) / sizeof(dataX[0])) * (int)(sizeof(dataY) /
sizeof(dataY[0]))];
int yIndex;
for(yIndex = 0; yIndex < (int)(sizeof(dataY) / sizeof(dataY[0])); ++yIndex) {
double y = dataY[yIndex];
int xIndex;
for(xIndex = 0; xIndex < (int)(sizeof(dataX) / sizeof(dataX[0])); ++xIndex) {
double x = dataX[xIndex];
dataZ[yIndex * (int)(sizeof(dataX) / sizeof(dataX[0])) + xIndex] = x *
sin(y) + y * 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 ", "timesi.ttf", 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(DoubleArray(dataX, (int)(sizeof(dataX) / sizeof(dataX[0]))),
DoubleArray(dataY, (int)(sizeof(dataY) / sizeof(dataY[0]))), DoubleArray(
dataZ, (int)(sizeof(dataZ) / sizeof(dataZ[0]))));
// 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)", "arialbd.ttf", 10);
c->yAxis()->setTitle("Y (nm)", "arialbd.ttf", 10);
c->zAxis()->setTitle("Energy Density (J/m<*font,super*>2<*/font*>)",
"arialbd.ttf", 10);
// Output the chart
c->makeChart("surface.jpg");
//free up resources
delete c;
return 0;
} |