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mapped item implementation

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This commit is contained in:
Thomas Krijnen
2020-06-11 20:49:44 +02:00
parent 109131961f
commit 52a3d627e2
2 changed files with 122 additions and 21 deletions
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src/ifcgeom/schema/mapping.cpp
+120 -19
View File
@@ -184,11 +184,26 @@ namespace {
return flat;
}
template <typename Fn>
bool apply_predicate_to_collection(taxonomy::item* i, Fn fn) {
if (i->kind() == taxonomy::COLLECTION) {
auto c = (taxonomy::collection*) i;
for (auto& child : c->children) {
if (apply_predicate_to_collection(child, fn)) {
return true;
}
}
} else {
return fn(i);
}
}
// @nb traverses nested collections
template <typename Fn>
taxonomy::collection* filter(taxonomy::collection* collection, Fn fn) {
auto filtered = new taxonomy::collection;
for (auto& child : collection->children) {
if (fn(child)) {
if (apply_predicate_to_collection(child, fn)) {
filtered->children.push_back(child);
}
}
@@ -207,16 +222,23 @@ taxonomy::item* mapping::map_impl(const IfcSchema::IfcRepresentation* inst) {
if (items == nullptr) {
return nullptr;
}
/*
// Don't blindly flatten, as we're culling away IfcMappedItem transformations
auto flat = flatten(items);
if (flat == nullptr) {
return nullptr;
}
auto filtered = filter(flat, [&use_body](taxonomy::item* i) {
*/
auto filtered = filter(items, [&use_body](taxonomy::item* i) {
// @todo just filter loops for now.
return (i->kind() != taxonomy::LOOP) == use_body;
});
delete items;
delete flat;
return filtered;
}
@@ -416,24 +438,92 @@ taxonomy::item* mapping::map_impl(const IfcSchema::IfcAxis2Placement2D* inst) {
return new taxonomy::matrix4(P, axis, V);
}
taxonomy::item* mapping::map_impl(const IfcSchema::IfcCartesianTransformationOperator2DnonUniform* inst) {
// @todo
return new taxonomy::matrix4();
}
taxonomy::item* mapping::map_impl(const IfcSchema::IfcCartesianTransformationOperator3DnonUniform* inst) {
// @todo
return new taxonomy::matrix4();
}
taxonomy::item* mapping::map_impl(const IfcSchema::IfcCartesianTransformationOperator2D* inst) {
// @todo
return new taxonomy::matrix4();
auto m = new taxonomy::matrix4;
Eigen::Vector4d origin, axis1(1.0, 0.0, 0.0, 0.0), axis2(0.0, 1.0, 0.0, 0.0), axis3(0.0, 0.0, 1.0, 0.0);
taxonomy::point3 O = as<taxonomy::point3>(map(inst->LocalOrigin()));
origin << *O.components, 1.0;
if (inst->hasAxis1()) {
taxonomy::direction3 ax1 = as<taxonomy::direction3>(map(inst->Axis1()));
axis1 << *ax1.components, 0.0;
}
if (inst->hasAxis2()) {
taxonomy::direction3 ax2 = as<taxonomy::direction3>(map(inst->Axis1()));
axis2 << *ax2.components, 0.0;
}
double scale1, scale2;
scale1 = scale2 = 1.0;
if (inst->hasScale()) {
scale1 = inst->Scale();
}
if (inst->as<IfcSchema::IfcCartesianTransformationOperator2DnonUniform>()) {
auto nu = inst->as<IfcSchema::IfcCartesianTransformationOperator2DnonUniform>();
scale2 = nu->hasScale2() ? nu->Scale2() : scale1;
}
*m->components <<
axis1 * scale1,
axis2 * scale2,
axis3,
origin;
m->components->transposeInPlace();
return m;
}
taxonomy::item* mapping::map_impl(const IfcSchema::IfcCartesianTransformationOperator3D* inst) {
// @todo
return new taxonomy::matrix4();
auto m = new taxonomy::matrix4;
Eigen::Vector4d origin;
Eigen::Vector4d axis1(1., 0., 0., 0.);
Eigen::Vector4d axis2(0., 1., 0., 0.);
Eigen::Vector4d axis3(0., 0., 1., 0.);
taxonomy::point3 O = as<taxonomy::point3>(map(inst->LocalOrigin()));
origin << *O.components, 1.0;
if (inst->hasAxis1()) {
taxonomy::direction3 ax1 = as<taxonomy::direction3>(map(inst->Axis1()));
axis1 << *ax1.components, 0.0;
}
if (inst->hasAxis2()) {
taxonomy::direction3 ax2 = as<taxonomy::direction3>(map(inst->Axis2()));
axis2 << *ax2.components, 0.0;
}
if (inst->hasAxis3()) {
taxonomy::direction3 ax3 = as<taxonomy::direction3>(map(inst->Axis3()));
axis3 << *ax3.components, 0.0;
}
double scale1, scale2, scale3;
scale1 = scale2 = scale3 = 1.;
if (inst->hasScale()) {
scale1 = inst->Scale();
}
if (inst->as<IfcSchema::IfcCartesianTransformationOperator3DnonUniform>()) {
auto nu = inst->as<IfcSchema::IfcCartesianTransformationOperator3DnonUniform>();
scale2 = nu->hasScale2() ? nu->Scale2() : scale1;
scale3 = nu->hasScale3() ? nu->Scale3() : scale1;
}
*m->components <<
axis1 * scale1,
axis2 * scale2,
axis3 * scale3,
origin;
m->components->transposeInPlace();
// @todo tag identity?
return m;
}
taxonomy::item* mapping::map_impl(const IfcSchema::IfcLocalPlacement* inst) {
@@ -1545,8 +1635,19 @@ taxonomy::item* mapping::map_impl(const IfcSchema::IfcCompositeCurve* inst) {
for (auto& segment : *segments) {
auto crv = map(segment->ParentCurve());
if (crv) {
((taxonomy::geom_item*)crv)->orientation = segment->SameSense();
loop->children.push_back(crv);
if (crv->kind() == taxonomy::EDGE) {
((taxonomy::geom_item*)crv)->orientation = segment->SameSense();
loop->children.push_back(crv);
} else if (crv->kind() == taxonomy::LOOP) {
if (!segment->SameSense()) {
crv->reverse();
}
auto curve_segments = ((taxonomy::loop*)crv)->children_as<taxonomy::edge>();
for (auto& s : curve_segments) {
loop->children.push_back(s);
}
// @todo delete crv without children
}
}
}
IfcEntityList::ptr profile = inst->data().getInverse(&IfcSchema::IfcProfileDef::Class(), -1);
src/ifcgeom/schema/mapping.i
+2 -2
View File
@@ -122,9 +122,9 @@ BIND(IfcDirection);
BIND(IfcAxis2Placement2D);
BIND(IfcAxis2Placement3D);
// BIND(IfcAxis1Placement);
BIND(IfcCartesianTransformationOperator2DnonUniform);
BIND(IfcCartesianTransformationOperator3DnonUniform);
// IfcCartesianTransformationOperator2DnonUniform included
BIND(IfcCartesianTransformationOperator2D);
// IfcCartesianTransformationOperator3DnonUniform included
BIND(IfcCartesianTransformationOperator3D);
BIND(IfcLocalPlacement);
// BIND(IfcVector);