页: 1 它包含我称为世界的所有档案。 t(有开放式3d协调)
-3.0 0.0 -3.0 0.0 6.0
-3.0 0.0 3.0 0.0 0.0
3.0 0.0 3.0 6.0 0.0 etc.
How could i transform these strings to float variables? When I tried:
scanf(WorldData[i].c_str(), "%f %f %f %f %f", &x, &y, &z, &tX, &tY);
or
scanf(WorldData[i].c_str(), "%f %f %f %f %f
", &x, &y, &z, &tX, &tY);
变量x, y, z, tX, tY获得一些微粒。
我不是从档案中读到病媒,然后从病媒到坐标,而是从档案中直接阅读:
struct coord {
double x, y, z, tX, tY;
};
std::istream &operator>>(std::istream &is, coord &c) {
return is >> c.x >> c.y >> c.z >> c.tX >> c.tY;
}
然后,您可使用<代码>istream_iterator创建坐标矢量:
std::ifstream in("world.txt");
// initialize vector of coords from file:
std::vector<coord> coords((std::istream_iterator<coord>(in)),
std::istream_iterator<coord>());
使用。
std::istringstream iss(WorldData[i]);
iss >> x >> y >> z >> tX >> tY;
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