diff options
Diffstat (limited to 'svg-flatten/src/nopencv.cpp')
| -rw-r--r-- | svg-flatten/src/nopencv.cpp | 94 |
1 files changed, 54 insertions, 40 deletions
diff --git a/svg-flatten/src/nopencv.cpp b/svg-flatten/src/nopencv.cpp index afe4881..2384fcc 100644 --- a/svg-flatten/src/nopencv.cpp +++ b/svg-flatten/src/nopencv.cpp @@ -247,6 +247,7 @@ double k_cos(const Polygon_i &poly, size_t i, size_t k) { return dp / (sqrt(sq_a)*sqrt(sq_b)); } +constexpr bool debug = false; ContourCallback gerbolyze::nopencv::simplify_contours_teh_chin(ContourCallback cb) { return [&cb](Polygon_i &poly, ContourPolarity cpol) { size_t sz = poly.size(); @@ -261,30 +262,32 @@ ContourCallback gerbolyze::nopencv::simplify_contours_teh_chin(ContourCallback c retain[i] = true; } - cerr << endl; - cerr << "Polarity: " << cpol <<endl; - cerr << "Coords:"<<endl; - cerr << " x: "; - for (size_t i=0; i<sz; i++) { - cerr << setfill(' ') << setw(2) << poly[i][0] << " "; - } - cerr << endl; - cerr << " y: "; - for (size_t i=0; i<sz; i++) { - cerr << setfill(' ') << setw(2) << poly[i][1] << " "; - } - cerr << endl; - cerr << "Metrics:"<<endl; - cerr << "ros: "; - for (size_t i=0; i<sz; i++) { - cerr << setfill(' ') << setw(2) << ros[i] << " "; - } - cerr << endl; - cerr << "sig: "; - for (size_t i=0; i<sz; i++) { - cerr << setfill(' ') << setw(2) << sig[i] << " "; + if (debug) { + cerr << endl; + cerr << "Polarity: " << cpol <<endl; + cerr << "Coords:"<<endl; + cerr << " x: "; + for (size_t i=0; i<sz; i++) { + cerr << setfill(' ') << setw(2) << poly[i][0] << " "; + } + cerr << endl; + cerr << " y: "; + for (size_t i=0; i<sz; i++) { + cerr << setfill(' ') << setw(2) << poly[i][1] << " "; + } + cerr << endl; + cerr << "Metrics:"<<endl; + cerr << "ros: "; + for (size_t i=0; i<sz; i++) { + cerr << setfill(' ') << setw(2) << ros[i] << " "; + } + cerr << endl; + cerr << "sig: "; + for (size_t i=0; i<sz; i++) { + cerr << setfill(' ') << setw(2) << sig[i] << " "; + } + cerr << endl; } - cerr << endl; /* Pass 0 (like opencv): Remove points with zero 1-curvature */ for (size_t i=0; i<sz; i++) { @@ -294,11 +297,13 @@ ContourCallback gerbolyze::nopencv::simplify_contours_teh_chin(ContourCallback c } } - cerr << "pass 0: "; - for (size_t i=0; i<sz; i++) { - cerr << (retain[i] ? "#" : "."); + if (debug) { + cerr << "pass 0: "; + for (size_t i=0; i<sz; i++) { + cerr << (retain[i] ? "#" : "."); + } + cerr << endl; } - cerr << endl; /* 3a, Pass 1: Non-maxima suppression */ for (size_t i=0; i<sz; i++) { @@ -310,11 +315,13 @@ ContourCallback gerbolyze::nopencv::simplify_contours_teh_chin(ContourCallback c } } - cerr << "pass 1: "; - for (size_t i=0; i<sz; i++) { - cerr << (retain[i] ? "#" : "."); + if (debug) { + cerr << "pass 1: "; + for (size_t i=0; i<sz; i++) { + cerr << (retain[i] ? "#" : "."); + } + cerr << endl; } - cerr << endl; /* 3b, Pass 2: Zero-curvature suppression */ for (size_t i=0; i<sz; i++) { @@ -325,11 +332,13 @@ ContourCallback gerbolyze::nopencv::simplify_contours_teh_chin(ContourCallback c } } - cerr << "pass 2: "; - for (size_t i=0; i<sz; i++) { - cerr << (retain[i] ? "#" : "."); + if (debug) { + cerr << "pass 2: "; + for (size_t i=0; i<sz; i++) { + cerr << (retain[i] ? "#" : "."); + } + cerr << endl; } - cerr << endl; /* 3c, Pass 3: Further thinning */ for (size_t i=0; i<sz; i++) { @@ -344,11 +353,13 @@ ContourCallback gerbolyze::nopencv::simplify_contours_teh_chin(ContourCallback c } } - cerr << "pass 3: "; - for (size_t i=0; i<sz; i++) { - cerr << (retain[i] ? "#" : "."); + if (debug) { + cerr << "pass 3: "; + for (size_t i=0; i<sz; i++) { + cerr << (retain[i] ? "#" : "."); + } + cerr << endl; } - cerr << endl; Polygon_i new_poly; for (size_t i=0; i<sz; i++) { @@ -356,7 +367,10 @@ ContourCallback gerbolyze::nopencv::simplify_contours_teh_chin(ContourCallback c new_poly.push_back(poly[i]); } } - cb(new_poly, cpol); + + if (!new_poly.empty()) { + cb(new_poly, cpol); + } }; } |