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ifcviewer: filter iterator to net IfcElements, void-limit setting

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Mirror bonsai's IfcImporter.process_element_filter so the streamer
walks only IfcElement (plus IfcProxy on IFC2X3/IFC4), drops
IfcFeatureElement except IfcSurfaceFeature, and routes elements
with more openings than the configurable void limit through a
second iterator pass with disable-opening-subtractions=true.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Dion Moult
2026-04-29 08:54:35 +10:00
parent e21bd1ac96
commit b73cdd1a0e
5 changed files with 211 additions and 89 deletions
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src/ifcviewer-full/SettingsWindow.cpp
+11
View File
@@ -25,6 +25,7 @@
#include <QFormLayout>
#include <QLineEdit>
#include <QShowEvent>
#include <QSpinBox>
#include <QVBoxLayout>
SettingsWindow::SettingsWindow(QWidget *parent)
@@ -57,6 +58,14 @@ void SettingsWindow::setupUi() {
"and, on sidecar hits, avoids a second file read.");
form->addRow("Load Property Data Source", load_data_source_check_);
void_limit_spin_ = new QSpinBox(this);
void_limit_spin_->setRange(0, 100000);
void_limit_spin_->setToolTip(
"Skip elements with more openings (HasOpenings) than this. "
"A handful of pathological elements can dominate boolean-subtraction "
"time; dropping them keeps load times sane.");
form->addRow("Void Limit", void_limit_spin_);
auto* button_box = new QDialogButtonBox(
QDialogButtonBox::Ok | QDialogButtonBox::Cancel, this);
@@ -80,6 +89,7 @@ void SettingsWindow::syncFromSettings() {
show_stats_check_->setChecked(AppSettings::instance().showStats());
backface_culling_check_->setChecked(AppSettings::instance().backfaceCulling());
load_data_source_check_->setChecked(AppSettings::instance().loadDataSource());
void_limit_spin_->setValue(AppSettings::instance().voidLimit());
}
void SettingsWindow::onAccepted() {
@@ -87,5 +97,6 @@ void SettingsWindow::onAccepted() {
AppSettings::instance().setShowStats(show_stats_check_->isChecked());
AppSettings::instance().setBackfaceCulling(backface_culling_check_->isChecked());
AppSettings::instance().setLoadDataSource(load_data_source_check_->isChecked());
AppSettings::instance().setVoidLimit(void_limit_spin_->value());
accept();
}