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fix: Correct sketch face rendering, orientation, and complex wire generation

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Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>
This commit is contained in:
Tanner Collin
2026-02-18 11:42:24 -07:00
parent ce6975cc44
commit 0798cd2a6c
2 changed files with 24 additions and 17 deletions
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28
src/SketchFeature.cpp
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@@ -13,6 +13,7 @@
#include <gp_Circ.hxx>
#include <gp_Ax2.hxx>
#include <TopExp_Explorer.hxx>
#include <ShapeAnalysis_FreeBounds.hxx>
#include <QJsonArray>
@@ -113,21 +114,22 @@ void SketchFeature::buildShape()
}
if (!lineEdges.isEmpty()) {
BRepBuilderAPI_MakeWire wireBuilder;
TopoDS_Compound compound;
BRep_Builder builder;
builder.MakeCompound(compound);
for (const auto& edge : lineEdges) {
wireBuilder.Add(edge);
builder.Add(compound, edge);
}
if (wireBuilder.IsDone()) {
TopoDS_Shape wiresShape = wireBuilder.Shape();
TopExp_Explorer explorer(wiresShape, TopAbs_WIRE);
for (; explorer.More(); explorer.Next()) {
TopoDS_Wire wire = TopoDS::Wire(explorer.Current());
if (wire.Closed()) {
BRepBuilderAPI_MakeFace faceBuilder(wire);
if (faceBuilder.IsDone()) {
faces.append(faceBuilder.Face());
}
}
ShapeAnalysis_FreeBounds freeBounds(compound, 1e-6, Standard_True);
TopoDS_Compound closedWires = freeBounds.GetClosedWires();
TopExp_Explorer explorer(closedWires, TopAbs_WIRE);
for (; explorer.More(); explorer.Next()) {
TopoDS_Wire wire = TopoDS::Wire(explorer.Current());
BRepBuilderAPI_MakeFace faceBuilder(wire);
if (faceBuilder.IsDone()) {
faces.append(faceBuilder.Face());
}
}
}

13
src/ViewportWidget.cpp
View File

@@ -544,11 +544,11 @@ void ViewportWidget::drawSketch(const SketchFeature* sketch)
switch (sketch->plane()) {
case SketchFeature::SketchPlane::XY:
u_axis = QVector3D(1, 0, 0);
v_axis = QVector3D(0, 0, 1);
v_axis = QVector3D(0, 1, 0);
break;
case SketchFeature::SketchPlane::XZ:
u_axis = QVector3D(1, 0, 0);
v_axis = QVector3D(0, 1, 0);
v_axis = QVector3D(0, 0, 1);
break;
case SketchFeature::SketchPlane::YZ:
u_axis = QVector3D(0, 1, 0);
@@ -574,10 +574,10 @@ void ViewportWidget::drawSketch(const SketchFeature* sketch)
gp_Pnt p2, p4;
if (sketch->plane() == SketchFeature::SketchPlane::XY) {
p2.SetCoord(p3.X(), p1.Y(), p1.Z());
p4.SetCoord(p1.X(), p1.Y(), p3.Z());
p4.SetCoord(p1.X(), p3.Y(), p1.Z());
} else if (sketch->plane() == SketchFeature::SketchPlane::XZ) {
p2.SetCoord(p3.X(), p1.Y(), p1.Z());
p4.SetCoord(p1.X(), p3.Y(), p1.Z());
p4.SetCoord(p1.X(), p1.Y(), p3.Z());
} else if (sketch->plane() == SketchFeature::SketchPlane::YZ) {
p2.SetCoord(p1.X(), p3.Y(), p1.Z());
p4.SetCoord(p1.X(), p1.Y(), p3.Z());
@@ -664,6 +664,7 @@ void ViewportWidget::drawSketch(const SketchFeature* sketch)
// Draw faces
if (!sketch->shape().IsNull()) {
glDisable(GL_CULL_FACE);
BRepMesh_IncrementalMesh(sketch->shape(), 0.1, Standard_False, 0.5, Standard_True); // Linear deflection, compute normals
QVector<GLfloat> faceData;
@@ -731,6 +732,7 @@ void ViewportWidget::drawSketch(const SketchFeature* sketch)
glDrawArrays(GL_TRIANGLES, 0, faceData.size() / 6);
m_shaderProgram->bind(); // rebind simple shader for subsequent draws
}
glEnable(GL_CULL_FACE);
}
glEnable(GL_DEPTH_TEST);
@@ -787,6 +789,9 @@ void ViewportWidget::drawSelectionPlanes()
glDisable(GL_DEPTH_TEST);
m_vbo.bind();
m_shaderProgram->enableAttributeArray(0);
m_shaderProgram->setAttributeBuffer(0, GL_FLOAT, 0, 3, 0);
m_shaderProgram->disableAttributeArray(1);
QVector<GLfloat> vertices;
auto drawPlane = [&](const QVector<GLfloat>& quadVerts, bool highlighted) {