diff options
| -rw-r--r-- | src/export.cc | 53 |
1 files changed, 35 insertions, 18 deletions
diff --git a/src/export.cc b/src/export.cc index 40b16d5..2b474f6 100644 --- a/src/export.cc +++ b/src/export.cc @@ -166,6 +166,20 @@ void export_dxf(CGAL_Nef_polyhedron *root_N, QString filename, QProgressDialog * } setlocale(LC_NUMERIC, "C"); // Ensure radix is . (not ,) in output + + // Some importers (e.g. QCAD) needs a HEADER section specifying AutoCAD 2000 as + // the file format for LWPOLYLINE entities to work + fprintf(f, " 0\n" + "SECTION\n" + " 2\n" + "HEADER\n" + " 9\n" + "$ACADVER\n" + " 1\n" + "AC1015\n" + " 0\n" + "ENDSEC\n"); + // Some importers (e.g. Inkscape) needs a BLOCKS section to be present fprintf(f, " 0\n" "SECTION\n" @@ -182,26 +196,29 @@ void export_dxf(CGAL_Nef_polyhedron *root_N, QString filename, QProgressDialog * DxfData dd(*root_N); for (int i=0; i<dd.paths.size(); i++) { - for (int j=1; j<dd.paths[i].points.size(); j++) { - DxfData::Point *p1 = dd.paths[i].points[j-1]; - DxfData::Point *p2 = dd.paths[i].points[j]; - double x1 = p1->x; - double y1 = p1->y; - double x2 = p2->x; - double y2 = p2->y; - fprintf(f, " 0\n"); - fprintf(f, "LINE\n"); - // Some importers (e.g. Inkscape) needs a layer to be specified - fprintf(f, " 8\n"); - fprintf(f, "0\n"); + if (dd.paths[i].points.size() < 2) + // not a valid polygon + continue; + // Use the LWPOLYLINE class - this makes it easier to handle complete + // objects (as paths) in Inkscape. + fprintf(f, " 0\n"); + fprintf(f, "LWPOLYLINE\n"); + // Some importers (e.g. Inkscape) need a layer to be specified + fprintf(f, " 8\n"); + fprintf(f, "0\n"); + // number of vertices + fprintf(f, " 90\n"); + fprintf(f, "%d\n", dd.paths[i].points.size()); + // polygon flag (closed, ...) + fprintf(f, " 70\n"); + fprintf(f, "%d\n", dd.paths[i].is_closed ? 1 : 0); + // add all points + for (int j=0; j<dd.paths[i].points.size(); j++) { + DxfData::Point *p = dd.paths[i].points[j]; fprintf(f, " 10\n"); - fprintf(f, "%f\n", x1); - fprintf(f, " 11\n"); - fprintf(f, "%f\n", x2); + fprintf(f, "%f\n", p->x); fprintf(f, " 20\n"); - fprintf(f, "%f\n", y1); - fprintf(f, " 21\n"); - fprintf(f, "%f\n", y2); + fprintf(f, "%f\n", p->y); } } |