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DXF: export stippled line styles.

pull/4/head
EvilSpirit 2016-03-03 08:51:13 +06:00 committed by whitequark
parent 1170a91875
commit 1814cf3c0f
1 changed files with 76 additions and 9 deletions
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85
src/exportvector.cpp
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@ -51,6 +51,67 @@ public:
dxf->writeLayer(&layer);
}
const char *lineTypeName(int stippleType) {
switch(stippleType) {
case Style::STIPPLE_CONTINUOUS: return "CONTINUOUS";
case Style::STIPPLE_DASH: return "DASHED";
case Style::STIPPLE_LONG_DASH: return "DASHEDX2";
case Style::STIPPLE_DASH_DOT: return "DASHDOT";
case Style::STIPPLE_DASH_DOT_DOT: return "DIVIDE";
case Style::STIPPLE_DOT: return "DOT";
case Style::STIPPLE_FREEHAND: return "CONTINUOUS";
case Style::STIPPLE_ZIGZAG: return "CONTINUOUS";
}
return "CONTINUOUS";
}
virtual void writeLTypes() {
for(int i = 0; i <= Style::LAST_STIPPLE; i++) {
DRW_LType type;
// LibreCAD requires the line type to have one of these exact names,
// or otherwise it overwrites it with its own (continuous) style.
type.name = lineTypeName(i);
double sw = 1.0;
switch(i) {
case Style::STIPPLE_CONTINUOUS:
break;
case Style::STIPPLE_DASH:
type.path.push_back(sw);
type.path.push_back(-sw);
break;
case Style::STIPPLE_LONG_DASH:
type.path.push_back(sw * 2.0);
type.path.push_back(-sw);
break;
case Style::STIPPLE_DASH_DOT:
type.path.push_back(sw);
type.path.push_back(-sw);
type.path.push_back(0.0);
type.path.push_back(-sw);
break;
case Style::STIPPLE_DOT:
type.path.push_back(sw);
type.path.push_back(0.0);
break;
case Style::STIPPLE_DASH_DOT_DOT:
type.path.push_back(sw);
type.path.push_back(-sw);
type.path.push_back(0.0);
type.path.push_back(-sw);
type.path.push_back(0.0);
type.path.push_back(-sw);
break;
}
dxf->writeLineType(&type);
}
}
virtual void writeEntities() {
for(DxfFileWriter::BezierPath &path : writer->paths) {
currentColor = path.color;
@ -165,9 +226,14 @@ public:
}
}
void assignEntityDefaults(DRW_Entity *entity) {
void assignEntityDefaults(DRW_Entity *entity, const SBezier &sb) {
hStyle hs = { (uint32_t)sb.auxA };
Style *s = Style::Get(hs);
entity->color24 = currentColor;
entity->layer = "entities";
entity->lineType = lineTypeName(s->stippleType);
entity->ltypeScale = Style::StippleScaleMm(s->h);
if(currentWidth > 0.0) entity->setWidthMm(currentWidth);
}
@ -175,17 +241,17 @@ public:
dimension->layer = "dimensions";
}
void writeLine(const Vector &p0, const Vector &p1) {
void writeLine(const Vector &p0, const Vector &p1, const SBezier &sb) {
DRW_Line line;
assignEntityDefaults(&line);
assignEntityDefaults(&line, sb);
line.basePoint = toCoord(p0);
line.secPoint = toCoord(p1);
dxf->writeLine(&line);
}
void writeArc(const Vector &c, double r, double sa, double ea) {
void writeArc(const Vector &c, double r, double sa, double ea, const SBezier &sb) {
DRW_Arc arc;
assignEntityDefaults(&arc);
assignEntityDefaults(&arc, sb);
arc.radious = r;
arc.basePoint = toCoord(c);
arc.staangle = sa;
@ -197,6 +263,7 @@ public:
List<Vector> lv = {};
sb->MakePwlInto(&lv, SS.ExportChordTolMm());
DRW_LWPolyline polyline;
assignEntityDefaults(&polyline, *sb);
for(int i = 0; i < lv.n; i++) {
Vector *v = &lv.elem[i];
DRW_Vertex2D *vertex = new DRW_Vertex2D();
@ -236,7 +303,7 @@ public:
void writeSpline(SBezier *sb) {
bool isRational = sb->IsRational();
DRW_Spline spline;
assignEntityDefaults(&spline);
assignEntityDefaults(&spline, *sb);
spline.flags = (isRational) ? 0x04 : 0x08;
spline.degree = sb->deg;
spline.ncontrol = sb->deg + 1;
@ -255,7 +322,7 @@ public:
if(sb->deg == 1) {
// Line
writeLine(sb->ctrl[0], sb->ctrl[1]);
writeLine(sb->ctrl[0], sb->ctrl[1], *sb);
} else if(sb->IsInPlane(n, 0) && sb->IsCircle(n, &c, &r)) {
// Circle perpendicular to camera
double theta0 = atan2(sb->ctrl[0].y - c.y, sb->ctrl[0].x - c.x);
@ -263,7 +330,7 @@ public:
double dtheta = WRAP_SYMMETRIC(theta1 - theta0, 2.0 * PI);
if(dtheta < 0.0) swap(theta0, theta1);
writeArc(c, r, theta0, theta1);
writeArc(c, r, theta0, theta1, *sb);
} else if(sb->IsRational()) {
// Rational bezier
// We'd like to export rational beziers exactly, but the resulting DXF
@ -280,7 +347,7 @@ public:
List<Vector> lv = {};
sb.MakePwlInto(&lv, SS.ChordTolMm() / SS.exportScale);
DRW_LWPolyline polyline;
assignEntityDefaults(&polyline);
assignEntityDefaults(&polyline, sb);
for(int i = 0; i < lv.n; i++) {
DRW_Vertex2D *vertex = new DRW_Vertex2D();
vertex->x = lv.elem[i].x;