Glassvision/IfcOpenShell
1
0
Fork 0
mirror of https://github.com/IfcOpenShell/IfcOpenShell.git synced 2026-08-12 10:33:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

--auto-section and --auto-elevation flags

Browse Source
This commit is contained in:
Thomas Krijnen
2020-12-30 14:25:08 +01:00
parent 9def261316
commit de5ce28a78
3 changed files with 169 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/serializers/SvgSerializer.cpp
+143 -33
View File
@@ -397,7 +397,7 @@ void SvgSerializer::write(const IfcGeom::BRepElement<real_t>* brep_obj) {
double elev = p ? p->second : std::numeric_limits<double>::quiet_NaN();
geometry_data data{ compound_local, trsf, brep_obj->product(), storey, elev, brep_obj->name(), nameElement(storey, brep_obj) };
if (buffer_elements_) {
if (auto_section_ || auto_elevation_ || section_ref_ || elevation_ref_) {
element_buffer_.push_back(data);
}
@@ -533,6 +533,7 @@ void SvgSerializer::write(const geometry_data& data) {
std::pair<double, double> range;
gp_Vec projection_direction;
gp_Pln projection_plane;
IfcUtil::IfcBaseEntity* storey = nullptr;
std::string drawing_name;
@@ -555,6 +556,7 @@ void SvgSerializer::write(const geometry_data& data) {
} else if (variant.which() == 2) {
const auto& section = boost::get<vertical_section>(variant);
projection_direction = section.plane.Axis().Direction();
projection_plane = section.plane;
drawing_name = section.name;
use_hlr = section.with_projection;
}
@@ -562,7 +564,40 @@ void SvgSerializer::write(const geometry_data& data) {
auto& compound_to_use = is_floor_plan_ ? compound : compound_unmirrored;
if (use_hlr && hlr) {
hlr->Add(compound_to_use);
// Check if any of the bounding box points is on the correct side of the plane
Bnd_Box bb;
try {
BRepBndLib::Add(compound_to_use, bb);
}
catch (const Standard_Failure&) {}
if (bb.IsVoid()) {
continue;
}
double xs[2], ys[2], zs[2];
bb.Get(xs[0], ys[0], zs[0], xs[1], ys[1], zs[1]);
bool any = false;
for (int i = 0; i < 8; ++i) {
gp_Pnt p(xs[(i & 1) == 1], ys[(i & 2) == 2], zs[(i & 4) == 4]);
auto d = (p.XYZ() - projection_plane.Location().XYZ()).Dot(projection_plane.Axis().Direction().XYZ());
int state;
if (std::abs(d) < 1.e-5) {
state = 0;
} else {
state = d < 0. ? -1 : 1;
}
if (state == 1) {
any = true;
}
}
if (any) {
hlr->Add(compound_to_use);
}
}
TopoDS_Iterator it(compound_to_use);
@@ -865,13 +900,16 @@ void SvgSerializer::resize() {
sc = (*scale_) * 1000;
cx = (xmax + xmin) / 2. * sc - width * center_x_.get_value_or(0.5);
cy = (ymax + ymin) / 2. * sc - height * center_y_.get_value_or(0.5);
} else {
}
else {
if (calculated_scale_) {
sc = *calculated_scale_;
} else {
}
else {
if (dx / width > dy / height) {
sc = width / dx;
} else {
}
else {
sc = height / dy;
}
calculated_scale_ = sc;
@@ -893,8 +931,12 @@ void SvgSerializer::resize() {
(*it)->value() *= sc;
}
}
}
void SvgSerializer::resetScale() {
// reset the bounding box, as a subsequent drawing (elevation, section) will be centered, but use the same scale.
// this is a separate call now as we first need to read drawing extents for automatically positioning sections and
// elevations
xmin = +std::numeric_limits<double>::infinity();
ymin = +std::numeric_limits<double>::infinity();
xmax = -std::numeric_limits<double>::infinity();
@@ -904,6 +946,63 @@ void SvgSerializer::resize() {
void SvgSerializer::finalize() {
resize();
if (!deferred_section_data_.is_initialized() && (auto_section_ || auto_elevation_)) {
deferred_section_data_.emplace();
}
// @nb keep in mind Y-axis is negated in these 6 definitions to account
// for coordinate system differences.
if (auto_section_) {
{
gp_Pln pln(gp_Ax3(
gp_Pnt((xmin + xmax) / 2., (ymin + ymax) / 2., 0.),
gp_Dir(-1, 0, 0),
gp_Dir(0, -1, 0)));
deferred_section_data_->push_back(vertical_section{ pln , "Section North South", false });
}
{
gp_Pln pln(gp_Ax3(
gp_Pnt((xmin + xmax) / 2., (ymin + ymax) / -2., 0.),
gp_Dir(0, -1, 0),
gp_Dir(-1, 0, 0)));
deferred_section_data_->push_back(vertical_section{ pln , "Section East West", true });
}
}
if (auto_elevation_) {
{
gp_Pln pln(gp_Ax3(
gp_Pnt((xmin + xmax) / 2., -(ymin - 1.e-1), 0.),
gp_Dir(0, -1, 0),
gp_Dir(-1, 0, 0)));
deferred_section_data_->push_back(vertical_section{ pln , "Elevation South", true });
}
{
gp_Pln pln(gp_Ax3(
gp_Pnt(xmax + 1.e-1, (ymin + ymax) / -2., 0.),
gp_Dir(-1, 0, 0),
gp_Dir(0, -1, 0)));
deferred_section_data_->push_back(vertical_section{ pln , "Elevation East", true });
}
{
gp_Pln pln(gp_Ax3(
gp_Pnt((xmin + xmax) / 2., -(ymax + 1.e-1), 0.),
gp_Dir(0, -1, 0),
gp_Dir(1, 0, 0)));
deferred_section_data_->push_back(vertical_section{ pln , "Elevation North", true });
}
{
gp_Pln pln(gp_Ax3(
gp_Pnt(xmin - 1.e-1, (ymin + ymax) / -2., 0.),
gp_Dir(-1, 0, 0),
gp_Dir(0, -1, 0)));
deferred_section_data_->push_back(vertical_section{ pln , "Elevation West", true });
}
}
resetScale();
if (deferred_section_data_ && deferred_section_data_->size() && element_buffer_.size()) {
// Draw door arcs only on floor plans.
@@ -922,7 +1021,7 @@ void SvgSerializer::finalize() {
hlr = new HLRBRep_Algo;
}
*section_data_ = { sd };
section_data_ = std::vector<section_data>{ sd };
for (auto& e : element_buffer_) {
write(e);
}
@@ -939,35 +1038,40 @@ void SvgSerializer::finalize() {
HLRBRep_HLRToShape hlr_shapes(hlr);
auto hlr_compound_unmirrored = hlr_shapes.VCompound();
// Compound 3D curves for mirroring to work
ShapeFix_Edge sfe;
TopExp_Explorer exp(hlr_compound_unmirrored, TopAbs_EDGE);
for (; exp.More(); exp.Next()) {
sfe.FixAddCurve3d(TopoDS::Edge(exp.Current()));
if (!hlr_compound_unmirrored.IsNull()) {
// Compound 3D curves for mirroring to work
ShapeFix_Edge sfe;
TopExp_Explorer exp(hlr_compound_unmirrored, TopAbs_EDGE);
for (; exp.More(); exp.Next()) {
sfe.FixAddCurve3d(TopoDS::Edge(exp.Current()));
}
// Mirror to match SVG coord system.
// @todo this is very wasteful. We better do the Y-mirror in the SVG writing and
// not on the TopoDS_Shape input.
gp_Trsf trsf_mirror;
trsf_mirror.SetMirror(gp_Ax2(gp::Origin(), gp::DY()));
BRepBuilderAPI_Transform make_transform_mirror(hlr_compound_unmirrored, trsf_mirror, true);
make_transform_mirror.Build();
auto hlr_compound = make_transform_mirror.Shape();
exp.Init(hlr_compound, TopAbs_EDGE);
BRep_Builder B;
auto& po = start_path(drawing_name, "class=\"projection\"");
for (; exp.More(); exp.Next()) {
TopoDS_Wire w;
B.MakeWire(w);
B.Add(w, exp.Current());
write(po, w);
}
}
// Mirror to match SVG coord system.
// @todo this is very wasteful. We better do the Y-mirror in the SVG writing and
// not on the TopoDS_Shape input.
gp_Trsf trsf_mirror;
trsf_mirror.SetMirror(gp_Ax2(gp::Origin(), gp::DY()));
BRepBuilderAPI_Transform make_transform_mirror(hlr_compound_unmirrored, trsf_mirror, true);
make_transform_mirror.Build();
auto hlr_compound = make_transform_mirror.Shape();
exp.Init(hlr_compound, TopAbs_EDGE);
BRep_Builder B;
auto& po = start_path(drawing_name, "class=\"projection\"");
for (; exp.More(); exp.Next()) {
TopoDS_Wire w;
B.MakeWire(w);
B.Add(w, exp.Current());
write(po, w);
}
}
resize();
resetScale();
if (use_hlr) {
hlr.Nullify();
@@ -987,7 +1091,9 @@ void SvgSerializer::finalize() {
if (it->first.first) {
svg_file << " <g " << nameElement(it->first.first) << ">\n";
} else {
svg_file << " <g data-name=\"" << it->first.second << "\" class=\"section\">\n";
auto n = it->first.second;
IfcUtil::escape_xml(n);
svg_file << " <g data-name=\"" << n << "\" class=\"section\">\n";
}
}
svg_file << " <g " << it->second.first << ">\n";
@@ -1071,10 +1177,13 @@ return oss.str();
}
std::string SvgSerializer::nameElement(const IfcUtil::IfcBaseEntity* storey, const IfcGeom::Element<real_t>* elem) {
auto n = elem->name();
IfcUtil::escape_xml(n);
return nameElement_({
{"id", with_section_heights_from_storey_ ? object_id(storey, elem) : GeometrySerializer::object_id(elem)},
{"class", elem->type()},
{"data-name", elem->name()},
{"data-name", n},
{"data-guid", elem->guid()}
});
}
@@ -1099,6 +1208,7 @@ std::string SvgSerializer::nameElement(const IfcUtil::IfcBaseEntity* elem) {
std::string ifc_name;
if (!elem->get("Name")->isNull()) {
ifc_name = (std::string) *elem->get("Name");
IfcUtil::escape_xml(ifc_name);
}
return nameElement_({