#include "chartdir.h"
int main(int argc, char *argv[])
{
// The age groups
const char *labels[] = {"0 - 4", "5 - 9", "10 - 14", "15 - 19", "20 - 24",
"24 - 29", "30 - 34", "35 - 39", "40 - 44", "44 - 49", "50 - 54", "55 - 59",
"60 - 64", "65 - 69", "70 - 74", "75 - 79", "80+"};
// The male population (in thousands)
double male[] = {215, 238, 225, 236, 235, 260, 286, 340, 363, 305, 259, 164, 135,
127, 102, 68, 66};
// The female population (in thousands)
double female[] = {194, 203, 201, 220, 228, 271, 339, 401, 384, 304, 236, 137,
116, 122, 112, 85, 110};
//=============================================================
// Draw the right bar chart
//=============================================================
// Create a XYChart object of size 320 x 300 pixels
XYChart *c = new XYChart(320, 300);
// Set the plotarea at (50, 0) and of size 250 x 255 pixels. Use pink (0xffdddd)
// as the background.
c->setPlotArea(50, 0, 250, 255, 0xffdddd);
// Add a custom text label at the top right corner of the right bar chart
c->addText(300, 0, "Female", "timesbi.ttf", 12, 0xa07070)->setAlignment(
Chart::TopRight);
// Add the pink (0xf0c0c0) bar chart layer using the female data
BarLayer *femaleLayer = c->addBarLayer(DoubleArray(female,
sizeof(female)/sizeof(female[0])), 0xf0c0c0);
// Swap the axis so that the bars are drawn horizontally
c->swapXY(true);
// Set the bar to touch each others
femaleLayer->setBarGap(Chart::TouchBar);
// Set the border style of the bars to 1 pixel 3D border
femaleLayer->setBorderColor(-1, 1);
// Add a Transparent line layer to the chart using the male data. As it is
// Transparent, only the female bar chart can be seen. We need to put both male
// and female data in both left and right charts, because we want auto-scaling to
// produce the same scale for both chart.
c->addLineLayer(DoubleArray(male, sizeof(male)/sizeof(male[0])),
Chart::Transparent);
// Set the y axis label font to Arial Bold
c->yAxis()->setLabelStyle("arialbd.ttf");
// Set the labels between the two bar charts, which can be considered as the
// x-axis labels for the right chart
TextBox *tb = c->xAxis()->setLabels(StringArray(labels,
sizeof(labels)/sizeof(labels[0])));
// Use a fix width of 50 for the labels (height = automatic) with center
// alignment
tb->setSize(50, 0);
tb->setAlignment(Chart::Center);
// Set the label font to Arial Bold
tb->setFontStyle("arialbd.ttf");
// Disable ticks on the x-axis by setting the tick length to 0
c->xAxis()->setTickLength(0);
//=============================================================
// Draw the left bar chart
//=============================================================
// Create a XYChart object of size 280 x 300 pixels with a transparent
// background.
XYChart *c2 = new XYChart(280, 300, Chart::Transparent);
// Set the plotarea at (20, 0) and of size 250 x 255 pixels. Use pale blue
// (0xddddff) as the background.
c2->setPlotArea(20, 0, 250, 255, 0xddddff);
// Add a custom text label at the top left corner of the left bar chart
c2->addText(20, 0, "Male", "timesbi.ttf", 12, 0x7070a0);
// Add the pale blue (0xaaaaff) bar chart layer using the male data
BarLayer *maleLayer = c2->addBarLayer(DoubleArray(male,
sizeof(male)/sizeof(male[0])), 0xaaaaff);
// Swap the axis so that the bars are drawn horizontally
c2->swapXY(true);
// Reverse the direction of the y-axis so it runs from right to left
c2->yAxis()->setReverse();
// Set the bar to touch each others
maleLayer->setBarGap(Chart::TouchBar);
// Set the border style of the bars to 1 pixel 3D border
maleLayer->setBorderColor(-1, 1);
// Add a Transparent line layer to the chart using the female data. As it is
// Transparent, only the male bar chart can be seen. We need to put both male and
// female data in both left and right charts, because we want auto-scaling to
// produce the same scale for both chart.
c2->addLineLayer(DoubleArray(female, sizeof(female)/sizeof(female[0])),
Chart::Transparent);
// Set the y axis label font to Arial Bold
c2->yAxis()->setLabelStyle("arialbd.ttf");
//=============================================================
// Use a MultiChart to contain both bar charts
//=============================================================
// Create a MultiChart object of size 590 x 320 pixels.
MultiChart *m = new MultiChart(590, 320);
// Add a title to the chart using Arial Bold Italic font
m->addTitle("Demographics Hong Kong Year 2002", "arialbi.ttf");
// Add another title at the bottom using Arial Bold Italic font
m->addTitle(Chart::Bottom, "Population (in thousands)", "arialbi.ttf", 10);
// Put the right chart at (270, 25)
m->addChart(270, 25, c);
// Put the left chart at (0, 25)
m->addChart(0, 25, c2);
// Output the chart
m->makeChart("dualhbar.png");
//free up resources
delete c;
delete c2;
delete m;
return 0;
} |