30 lines
650 B
C++
30 lines
650 B
C++
#ifndef READ_POLYLINES_H
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#define READ_POLYLINES_H
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#include <cstddef>
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#include <vector>
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#include <fstream>
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template <typename Point_3>
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bool read_polylines(const char* fname,
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std::vector<std::vector<Point_3> >& polylines)
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{
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std::ifstream ifs(fname);
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if(ifs.bad()) return false;
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std::size_t n;
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while(ifs >> n) {
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polylines.resize(polylines.size()+1);
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std::vector<Point_3>& polyline = polylines.back();
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while(n-- != 0) {
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Point_3 p;
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ifs >> p;
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if(ifs.fail()) return false;
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polyline.push_back(p);
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}
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}
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if(ifs.bad()) return false;
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else return ifs.eof();
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}
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#endif // READ_POLYLINES_H
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