diff options
| -rw-r--r-- | TODO.txt | 1 | ||||
| -rw-r--r-- | dxfdata.cc | 70 | ||||
| -rw-r--r-- | testdata/transform-insert.dxf | 2980 | ||||
| -rw-r--r-- | testdata/transform-insert.scad | 1 |
4 files changed, 3025 insertions, 27 deletions
@@ -66,7 +66,6 @@ o DXF Import - Support for SPLINE entity - Support for LEADER entity - Support for MTEXT entity ? - - Test INSERT with rotation. code looks wrong - idea: DXF inline - convert from dxf to OpenSCAD syntax -> parametrize dxf content o Mesh optimization on STL export - Remove super small triangles (all sides are short) @@ -82,7 +82,9 @@ DxfData::DxfData(double fn, double fs, double fa, QString filename, QString laye double coords[7][2]; // Used by DIMENSION entities QVector<double> xverts; QVector<double> yverts; - double radius = 0, start_angle = 0, stop_angle = 0; + double radius = 0; + double arc_start_angle = 0, arc_stop_angle = 0; + double ellipse_start_angle = 0, ellipse_stop_angle = 0; for (int i = 0; i < 7; i++) for (int j = 0; j < 2; j++) @@ -155,21 +157,21 @@ DxfData::DxfData(double fn, double fs, double fa, QString filename, QString laye else if (mode == "ARC") { Point center(xverts[0], yverts[0]); int n = get_fragments_from_r(radius, fn, fs, fa); - while (start_angle > stop_angle) - stop_angle += 360.0; - n = (int)ceil(n * (stop_angle-start_angle) / 360); + while (arc_start_angle > arc_stop_angle) + arc_stop_angle += 360.0; + n = (int)ceil(n * (arc_stop_angle-arc_start_angle) / 360); 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; + double a1 = ((arc_stop_angle-arc_start_angle)*i)/n; + double a2 = ((arc_stop_angle-arc_start_angle)*(i+1))/n; + a1 = (arc_start_angle + a1) * M_PI / 180.0; + a2 = (arc_start_angle + a2) * M_PI / 180.0; ADD_LINE(cos(a1)*radius + center.x, sin(a1)*radius + center.y, cos(a2)*radius + center.x, sin(a2)*radius + center.y); } } else if (mode == "ELLIPSE") { // Commented code is meant as documentation of vector math - while (start_angle > stop_angle) stop_angle += 2 * M_PI; + while (ellipse_start_angle > ellipse_stop_angle) ellipse_stop_angle += 2 * M_PI; // Vector2d center(xverts[0], yverts[0]); Point center(xverts[0], yverts[0]); // Vector2d ce(xverts[1], yverts[1]); @@ -190,13 +192,13 @@ DxfData::DxfData(double fn, double fs, double fa, QString filename, QString laye // the ratio stored in 'radius; due to the parser code not checking entity type double r_minor = r_major * radius; - double sweep_angle = stop_angle-start_angle; + double sweep_angle = ellipse_stop_angle-ellipse_start_angle; int n = get_fragments_from_r(r_major, fn, fs, fa); n = (int)ceil(n * sweep_angle / (2 * M_PI)); // Vector2d p1; Point p1; for (int i=0;i<=n;i++) { - double a = (start_angle + sweep_angle*i/n); + double a = (ellipse_start_angle + sweep_angle*i/n); // Vector2d p2(cos(a)*r_major, sin(a)*r_minor); Point p2(cos(a)*r_major, sin(a)*r_minor); // p2.rotate(rot_angle); @@ -215,16 +217,18 @@ DxfData::DxfData(double fn, double fs, double fa, QString filename, QString laye } } else if (mode == "INSERT") { + // scale is stored in ellipse_start|stop_angle, rotation in arc_start_angle; + // due to the parser code not checking entity type int n = blockdata[iddata].size(); for (int i = 0; i < n; i++) { - double a = -start_angle * M_PI / 180.0; - double lx1 = blockdata[iddata][i].p[0]->x; - double ly1 = blockdata[iddata][i].p[0]->y; - double lx2 = blockdata[iddata][i].p[1]->x; - double ly2 = blockdata[iddata][i].p[1]->y; - double px1 = cos(a)*lx1 + sin(a)*ly1 + xverts[0]; + double a = arc_start_angle * M_PI / 180.0; + double lx1 = blockdata[iddata][i].p[0]->x * ellipse_start_angle; + double ly1 = blockdata[iddata][i].p[0]->y * ellipse_stop_angle; + double lx2 = blockdata[iddata][i].p[1]->x * ellipse_start_angle; + double ly2 = blockdata[iddata][i].p[1]->y * ellipse_stop_angle; + double px1 = cos(a)*lx1 - sin(a)*ly1 + xverts[0]; double py1 = sin(a)*lx1 + cos(a)*ly1 + yverts[0]; - double px2 = cos(a)*lx2 + sin(a)*ly2 + xverts[0]; + double px2 = cos(a)*lx2 - sin(a)*ly2 + xverts[0]; double py2 = sin(a)*lx2 + cos(a)*ly2 + yverts[0]; ADD_LINE(px1, py1, px2, py2); } @@ -236,7 +240,7 @@ DxfData::DxfData(double fn, double fs, double fa, QString filename, QString laye for (int i = 0; i < 7; i++) for (int j = 0; j < 2; j++) this->dims.last().coords[i][j] = coords[i][j]; - this->dims.last().angle = start_angle; + this->dims.last().angle = ellipse_start_angle; this->dims.last().length = radius; this->dims.last().name = name; } @@ -262,7 +266,11 @@ DxfData::DxfData(double fn, double fs, double fa, QString filename, QString laye coords[i][j] = 0; xverts.clear(); yverts.clear(); - radius = start_angle = stop_angle = 0; + radius = arc_start_angle = arc_stop_angle = 0; + ellipse_start_angle = ellipse_stop_angle = 0; + if (mode == "INSERT") { + ellipse_start_angle = ellipse_stop_angle = 1.0; // scale + } break; case 1: name = data; @@ -291,13 +299,23 @@ DxfData::DxfData(double fn, double fs, double fa, QString filename, QString laye // DIMENSION (radial, diameter): Leader length radius = data.toDouble() * scale; break; - case 41: // for ELLIPSE - case 50: // for ARC - start_angle = data.toDouble(); + case 41: + // ELLIPSE: start_angle + // INSERT: X scale + ellipse_start_angle = data.toDouble(); + break; + case 50: + // ARC: start_angle + // INSERT: rot angle + arc_start_angle = data.toDouble(); + break; + case 42: + // ELLIPSE: stop_angle + // INSERT: Y scale + ellipse_stop_angle = data.toDouble(); break; - case 42: // for ELLIPSE - case 51: // for ARC - stop_angle = data.toDouble(); + case 51: // ARC + arc_stop_angle = data.toDouble(); break; case 70: // LWPOLYLINE: polyline flag diff --git a/testdata/transform-insert.dxf b/testdata/transform-insert.dxf new file mode 100644 index 0000000..40064c2 --- /dev/null +++ b/testdata/transform-insert.dxf @@ -0,0 +1,2980 @@ +999 +dxflib 2.2.0.0 + 0 +SECTION + 2 +HEADER + 9 +$ACADVER + 1 +AC1015 + 9 +$HANDSEED + 5 +FFFF + 9 +$DIMASZ + 40 +2.5 + 9 +$PLIMMIN + 10 +0.0 + 20 +0.0 + 9 +$DIMEXE + 40 +1.25 + 9 +$DIMGAP + 40 +0.625 + 9 +$PLIMMAX + 10 +210.0 + 20 +297.0 + 9 +$INSUNITS + 70 +4 + 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