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Deal with read_WKT()

This commit is contained in:
Andreas Fabri 2025-08-20 15:32:33 +01:00
parent 8cedde9036
commit b23eb7e7b4
1 changed files with 18 additions and 4 deletions
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22
Stream_support/include/CGAL/IO/WKT.h
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@ -476,6 +476,7 @@ bool read_WKT(std::istream& is,
{
auto fail = [&is]() { is.clear(is.rdstate() | std::ios::failbit); return false; };
bool found = false;
std::string line;
while(is >> std::ws && is.good() && std::getline(is, line))
{
@ -505,44 +506,57 @@ bool read_WKT(std::istream& is,
{
Point p;
if(!IO::read_point_WKT(iss, p) ) return fail();
found = true;
points.push_back(p);
}
else if(type == "LINESTRING")
{
LineString l;
if(!IO::read_linestring_WKT(iss, l)) return fail();
found = true;
polylines.push_back(std::move(l));
}
else if(type == "POLYGON")
{
Polygon p;
if(!IO::read_polygon_WKT(iss, p)) return fail();
if(!p.outer_boundary().is_empty())
if(!p.outer_boundary().is_empty()){
found = true;
polygons.push_back(std::move(p));
}
}
else if(type == "MULTIPOINT")
{
MultiPoint mp;
if(!IO::read_multi_point_WKT(iss, mp)) return fail();
for(const Point& point : mp)
for(const Point& point : mp){
points.push_back(point);
found = true;
}
}
else if(type == "MULTILINESTRING")
{
MultiLineString mls;
if(!IO::read_multi_linestring_WKT(iss, mls)) return fail();
for(LineString& ls : mls)
for(LineString& ls : mls){
polylines.push_back(std::move(ls));
found = true;
}
}
else if(type == "MULTIPOLYGON")
{
MultiPolygon mp;
if(!IO::read_multi_polygon_WKT(iss, mp)) return fail();
for(Polygon& poly : mp)
for(Polygon& poly : mp){
polygons.push_back(std::move(poly));
found = true;
}
}
}
if(!found){
return false;
}
return !is.fail();
}