diff options
Diffstat (limited to 'dxfdata.cc')
| -rw-r--r-- | dxfdata.cc | 63 |
1 files changed, 57 insertions, 6 deletions
@@ -22,7 +22,7 @@ #include <QFile> -DxfData::DxfData(double /* fn */, double /* fs */, double /* fa */, QString filename, QString layername) +DxfData::DxfData(double fn, double fs, double fa, QString filename, QString layername, double xorigin, double yorigin, double scale) { QFile f(filename); @@ -38,6 +38,9 @@ DxfData::DxfData(double /* fn */, double /* fs */, double /* fa */, QString file QString mode, layer; double x1 = 0, x2 = 0, y1 = 0, y2 = 0; + double radius = 0, start_angle = 0, stop_angle = 0; + bool in_entities_section = false; + QHash<QString, int> unsupported_entities_list; while (!f.atEnd()) { @@ -56,26 +59,72 @@ DxfData::DxfData(double /* fn */, double /* fs */, double /* fa */, QString file if (mode == "LINE" && (layername.isNull() || layername == layer)) { lines.append(Line(p(x1, y1), p(x2, y2))); } + if (mode == "CIRCLE" && (layername.isNull() || layername == layer)) { + int n = get_fragments_from_r(radius, fn, fs, fa); + for (int i = 0; i < n; i++) { + double a1 = (2*M_PI*i)/n; + double a2 = (2*M_PI*(i+1))/n; + lines.append(Line(p(cos(a1)*radius + x1, sin(a1)*radius + y1), + p(cos(a2)*radius + x1, sin(a2)*radius + y1))); + } + } + if (mode == "ARC" && (layername.isNull() || layername == layer)) { + int n = get_fragments_from_r(radius, fn, fs, fa); + while (start_angle > stop_angle) + stop_angle += 360.0; + n = ceil(n * 360 / (stop_angle-start_angle)); + for (int i = 0; i < n; i++) { + double a1 = ((stop_angle-start_angle)*i)/n; + double a2 = ((stop_angle-start_angle)*(i+1))/n; + a1 = (start_angle + a1) * M_PI / 180.0; + a2 = (start_angle + a2) * M_PI / 180.0; + lines.append(Line(p(cos(a1)*radius + x1, sin(a1)*radius + y1), + p(cos(a2)*radius + x1, sin(a2)*radius + y1))); + } + } + if (in_entities_section) { + if (data != "SECTION" && data != "ENDSEC" && + data != "LINE" && data != "ARC" && data != "CIRCLE") + unsupported_entities_list[data]++; + } mode = data; break; + case 2: + in_entities_section = data == "ENTITIES"; case 8: layer = data; break; case 10: - x1 = data.toDouble(); + x1 = (data.toDouble() - xorigin) * scale; break; case 11: - x2 = data.toDouble(); + x2 = (data.toDouble() - xorigin) * scale; break; case 20: - y1 = data.toDouble(); + y1 = (data.toDouble() - yorigin) * scale; break; case 21: - y2 = data.toDouble(); + y2 = (data.toDouble() - yorigin) * scale; + break; + case 40: + radius = data.toDouble() * scale; + break; + case 50: + start_angle = data.toDouble(); + break; + case 51: + stop_angle = data.toDouble(); break; } } + QHashIterator<QString, int> i(unsupported_entities_list); + while (i.hasNext()) { + i.next(); + PRINTA("WARNING: Unsupported DXF Entity `%1' (%2x) in `%3'.", + i.key(), QString::number(i.value()), filename); + } + // extract all open paths while (lines.count() > 0) { @@ -84,6 +133,8 @@ DxfData::DxfData(double /* fn */, double /* fs */, double /* fa */, QString file for (int i = 0; i < lines.count(); i++) { for (int j = 0; j < 2; j++) { for (int k = 0; k < lines.count(); k++) { + if (i == k) + continue; if (lines[i].p[j] == lines[k].p[0]) goto next_open_path_j; if (lines[i].p[j] == lines[k].p[1]) @@ -174,7 +225,7 @@ DxfData::DxfData(double /* fn */, double /* fs */, double /* fa */, QString file min_x_point = j; } } - // rotate points if the path is not in non-standard rotation + // rotate points if the path is in non-standard rotation int b = min_x_point; int a = b == 0 ? paths[i].points.count() - 2 : b - 1; int c = b == paths[i].points.count() - 1 ? 1 : b + 1; |