void read_polygon_xyz(boost::ptr_vector<geometry_type> & paths)
{
int num_rings = read_integer();
if (num_rings > 0)
{
std::unique_ptr<geometry_type> poly(new geometry_type(geometry_type::types::Polygon));
for (int i = 0; i < num_rings; ++i)
{
int num_points = read_integer();
if (num_points > 0)
{
CoordinateArray ar(num_points);
read_coords_xyz(ar);
poly->move_to(ar[0].x, ar[0].y);
for (int j = 1; j < num_points; ++j)
{
poly->line_to(ar[j].x, ar[j].y);
}
poly->close_path();
}
}
if (poly->size() > 2) // ignore if polygon has less than 3 vertices
paths.push_back(poly.release());
}
}
void read_linestring_xyz(boost::ptr_vector<geometry_type> & paths)
{
geometry_type* line = new geometry_type(LineString);
int num_points = read_integer();
CoordinateArray ar(num_points);
read_coords_xyz(ar);
line->move_to(ar[0].x, ar[0].y);
for (int i = 1; i < num_points; ++i)
{
line->line_to(ar[i].x, ar[i].y);
}
paths.push_back(line);
}
void read_linestring_xyz(boost::ptr_vector<geometry_type> & paths)
{
int num_points = read_integer();
if (num_points > 0)
{
CoordinateArray ar(num_points);
read_coords_xyz(ar);
std::unique_ptr<geometry_type> line(new geometry_type(geometry_type::types::LineString));
line->move_to(ar[0].x, ar[0].y);
for (int i = 1; i < num_points; ++i)
{
line->line_to(ar[i].x, ar[i].y);
}
paths.push_back(line.release());
}
}
void read_polygon_xyz(boost::ptr_vector<geometry_type> & paths)
{
geometry_type* poly = new geometry_type(Polygon);
int num_rings = read_integer();
unsigned capacity = 0;
for (int i = 0; i < num_rings; ++i)
{
int num_points = read_integer();
capacity += num_points;
CoordinateArray ar(num_points);
read_coords_xyz(ar);
poly->move_to(ar[0].x, ar[0].y);
for (int j = 1; j < num_points; ++j)
{
poly->line_to(ar[j].x, ar[j].y);
}
}
paths.push_back(poly);
}
