#include <cmath>
#include <cstdlib>
#include <ctime>
#include <vector>
using namespace std;
using namespace LibBoard;
int coordinate(int width)
{
return 1 + (int)(width * (rand() / (RAND_MAX + 1.0)));
}
int main(int, char *[])
{
board.
clear(Color::White);
vector<Point> points;
vector<Point>::iterator i1, i2, end;
int n = 22;
while (n--) {
points.push_back(
Point(coordinate(40), coordinate(40)));
}
end = points.end();
i1 = points.begin();
while (i1 != end) {
i2 = i1;
Color pen = Color::fromHueColormap(
static_cast<float>(Tools::boardRandDouble()));
while (i2 != end) {
if (i1 != i2 && !(rand() % 6)) {
board <<
Arrow(*i1, *i2, Arrow::Plain, pen, pen, 0.1);
const double norm = v.
norm();
board <<
Arrow(*i1, (*i1) + ((norm > 8) ? (vn * 8.0) : v), Arrow::Plain, pen, pen, 0.1).
translated(45, 0);
}
++i2;
}
++i1;
}
i1 = points.begin();
while (i1 != end) {
board << LibBoard::circle(*i1, 0.25, Color::Black, Color::Black, 0);
board << LibBoard::circle(*i1, 0.25, Color::Black, Color::Black, 0).
translated(45, 0);
++i1;
}
board.
saveEPS(
"graph.eps", 100, 100);
board.
saveFIG(
"graph.fig", 100, 100);
board.
saveSVG(
"graph.svg", Board::BoundingBox, 2.0, Board::UCentimeter);
}