#include "chartdir.h"
int main(int argc, char *argv[])
{
// The (x, y) coordinates of the starting point of the vectors
double dataX[] = {20, 40, 60, 80, 100, 20, 40, 60, 80, 100, 20, 40, 58, 62, 80, 100, 20, 40, 60,
80, 100, 20, 40, 60, 80, 100};
double dataY[] = {20, 20, 20, 20, 20, 40, 40, 40, 40, 40, 60, 60, 60, 60, 60, 60, 80, 80, 80,
80, 80, 100, 100, 100, 100, 100};
// The lengths (radii) and directions (angles) of the vectors
double dataR[] = {6, 6, 9, 6, 6, 6, 9, 12, 9, 6, 9, 12, 12, 12, 12, 9, 6, 9, 12, 9, 6, 6, 6, 9,
6, 6};
double dataA[] = {-45, -30, 0, 30, 45, -60, -45, 0, 45, 60, -90, -90, -90, 90, 90, 90, -120,
-135, 180, 135, 120, -135, -150, 180, 150, 135};
// Create a XYChart object of size 450 x 390 pixels
XYChart *c = new XYChart(450, 390);
// Set the plotarea at (55, 40) and of size 350 x 300 pixels, with a light grey border
// (0xc0c0c0). Turn on both horizontal and vertical grid lines with light grey color (0xc0c0c0)
c->setPlotArea(55, 40, 350, 300, -1, -1, 0xc0c0c0, 0xc0c0c0, -1);
// Add a title to the chart using 18pt Times Bold Itatic font.
c->addTitle("Vector Chart Demonstration", "timesbi.ttf", 18);
// Add a title to the y axis using 12pt Arial Bold Italic font
c->yAxis()->setTitle("Y Axis Title", "arialbi.ttf", 12);
// Add a title to the x axis using 12pt Arial Bold Italic font
c->xAxis()->setTitle("X Axis Title", "arialbi.ttf", 12);
// Set the axes line width to 3 pixels
c->xAxis()->setWidth(3);
c->yAxis()->setWidth(3);
// Add a vector layer to the chart using blue (0000CC) color, with vector arrow size set to 11
// pixels
c->addVectorLayer(DoubleArray(dataX, (int)(sizeof(dataX) / sizeof(dataX[0]))), DoubleArray(
dataY, (int)(sizeof(dataY) / sizeof(dataY[0]))), DoubleArray(dataR, (int)(sizeof(dataR) /
sizeof(dataR[0]))), DoubleArray(dataA, (int)(sizeof(dataA) / sizeof(dataA[0]))),
Chart::YAxisScale, 0x0000cc)->setArrowHead(11);
// Output the chart
c->makeChart("vector.png");
//free up resources
delete c;
return 0;
} |