ChartDirector Ver 4.1 (C++ Edition)

Built-In Symbols




This example demonstrates the built-in symbols supported by ChartDirector.

Source Code Listing

[The following code is available in "cppdemo/builtinsymbols". A MFC version of the code is available in "mfcdemo" (Windows edition only).]
#include "chartdir.h"

int main(int argc, char *argv[])
{
    // Some ChartDirector built-in symbols
    int symbols[] = {Chart::SquareSymbol, Chart::DiamondSymbol,
        Chart::TriangleSymbol, Chart::RightTriangleSymbol, Chart::LeftTriangleSymbol,
        Chart::InvertedTriangleSymbol, Chart::CircleSymbol, Chart::StarShape(3),
        Chart::StarShape(4), Chart::StarShape(5), Chart::StarShape(6),
        Chart::StarShape(7), Chart::StarShape(8), Chart::StarShape(9),
        Chart::StarShape(10), Chart::PolygonShape(5), Chart::Polygon2Shape(5),
        Chart::PolygonShape(6), Chart::Polygon2Shape(6), Chart::PolygonShape(7),
        Chart::PolygonShape(8), Chart::CrossShape(0.1), Chart::CrossShape(0.2),
        Chart::CrossShape(0.3), Chart::CrossShape(0.4), Chart::CrossShape(0.5),
        Chart::CrossShape(0.6), Chart::CrossShape(0.7), Chart::Cross2Shape(0.1),
        Chart::Cross2Shape(0.2), Chart::Cross2Shape(0.3), Chart::Cross2Shape(0.4),
        Chart::Cross2Shape(0.5), Chart::Cross2Shape(0.6), Chart::Cross2Shape(0.7)};

    // Create a XYChart object of size 450 x 400 pixels
    XYChart *c = new XYChart(450, 400);

    // 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 18 pts Times Bold Itatic font.
    c->addTitle("Built-in Symbols", "timesbi.ttf", 18);

    // Set the axes line width to 3 pixels
    c->xAxis()->setWidth(3);
    c->yAxis()->setWidth(3);

    // Add each symbol as a separate scatter layer.
    int i;
    for(i = 0; i < sizeof(symbols) / sizeof(symbols[0]); ++i) {
        double coor1[] = {i % 5 + 1};
        double coor2[] = {i / 5 + 1};
        c->addScatterLayer(DoubleArray(coor1, sizeof(coor1)/sizeof(coor1[0])),
            DoubleArray(coor2, sizeof(coor2)/sizeof(coor2[0])), "", symbols[i], 15);
    }

    // output the chart
    c->makeChart("builtinsymbols.png");

    //free up resources
    delete c;
    return 0;
}