茂之钳
b3269b4f09
- SimpleCylinder: removed competing SHELL_BASED_SURFACE_MODEL that was creating a separate 2-face body before the 3-face MANIFOLD_SOLID_BREP - MultipleBodies: replaced complex invalid test data with two valid single-face bodies using proper STEP entity conventions (ORIENTED_EDGE wrapping EDGE_CURVE, VECTOR entities for LINE direction)
603 lines
22 KiB
C++
603 lines
22 KiB
C++
#include <gtest/gtest.h>
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#include "vde/brep/step_import.h"
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#include "vde/brep/brep.h"
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#include "vde/brep/modeling.h"
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#include <cmath>
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#include <sstream>
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using namespace vde::brep;
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using namespace vde::core;
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// ─────────────────────────────────────────────────────────────
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// Helper: build a minimal STEP file as a string
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// ─────────────────────────────────────────────────────────────
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static std::string step_header() {
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return R"(ISO-10303-21;
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HEADER;
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FILE_DESCRIPTION(('ViewDesignEngine test'),'2;1');
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FILE_NAME('test.stp','2025-01-01T00:00:00',('Author'),(''),'','','');
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FILE_SCHEMA(('CONFIG_CONTROL_DESIGN','GEOMETRIC_MODEL_SCHEMA'));
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ENDSEC;
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DATA;
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)";
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}
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static std::string step_footer() {
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return R"(ENDSEC;
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END-ISO-10303-21;
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)";
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}
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// ─────────────────────────────────────────────────────────────
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// Test: Parse a minimal box STEP file
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// ─────────────────────────────────────────────────────────────
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TEST(StepImport, MinimalBox) {
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// A simple box as MANIFOLD_SOLID_BREP with 6 planar faces
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// Points are the 8 corners of a 2×2×2 box centered at origin
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std::string step = step_header() + R"(
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#1=CARTESIAN_POINT('',(-1.0,-1.0,-1.0));
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#2=CARTESIAN_POINT('',(1.0,-1.0,-1.0));
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#3=CARTESIAN_POINT('',(1.0,1.0,-1.0));
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#4=CARTESIAN_POINT('',(-1.0,1.0,-1.0));
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#5=CARTESIAN_POINT('',(-1.0,-1.0,1.0));
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#6=CARTESIAN_POINT('',(1.0,-1.0,1.0));
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#7=CARTESIAN_POINT('',(1.0,1.0,1.0));
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#8=CARTESIAN_POINT('',(-1.0,1.0,1.0));
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#10=DIRECTION('',(0.0,0.0,1.0));
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#11=DIRECTION('',(1.0,0.0,0.0));
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#12=DIRECTION('',(0.0,1.0,0.0));
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#13=DIRECTION('',(0.0,0.0,-1.0));
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#14=DIRECTION('',(-1.0,0.0,0.0));
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#15=DIRECTION('',(0.0,-1.0,0.0));
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#16=DIRECTION('',(1.0,1.0,0.0));
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#17=DIRECTION('',(-1.0,1.0,0.0));
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#18=DIRECTION('',(-1.0,-1.0,0.0));
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#19=DIRECTION('',(1.0,-1.0,0.0));
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#20=AXIS2_PLACEMENT_3D('',#1,#10,#11);
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#21=AXIS2_PLACEMENT_3D('',#5,#10,#11);
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#22=AXIS2_PLACEMENT_3D('',#1,#12,#11);
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#23=AXIS2_PLACEMENT_3D('',#4,#12,#11);
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#24=AXIS2_PLACEMENT_3D('',#2,#14,#12);
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#25=AXIS2_PLACEMENT_3D('',#1,#14,#12);
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#30=PLANE('',#20);
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#31=PLANE('',#21);
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#32=PLANE('',#22);
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#33=PLANE('',#23);
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#34=PLANE('',#24);
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#35=PLANE('',#25);
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#40=LINE('',#1,#16);
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#41=LINE('',#2,#17);
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#42=LINE('',#3,#12);
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#43=LINE('',#4,#18);
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#44=LINE('',#5,#19);
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#45=LINE('',#6,#17);
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#46=LINE('',#7,#11);
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#47=LINE('',#8,#18);
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#48=LINE('',#1,#10);
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#49=LINE('',#2,#10);
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#50=LINE('',#3,#10);
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#51=LINE('',#4,#10);
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#52=LINE('',#2,#11);
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#53=LINE('',#3,#12);
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#54=LINE('',#7,#12);
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#55=LINE('',#6,#15);
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#56=LINE('',#1,#15);
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#57=LINE('',#4,#14);
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#58=LINE('',#8,#14);
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#59=LINE('',#5,#15);
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#60=LINE('',#5,#14);
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#70=EDGE_CURVE('',#80,#81,#40,.T.);
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#71=EDGE_CURVE('',#81,#82,#41,.T.);
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#72=EDGE_CURVE('',#82,#83,#42,.T.);
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#73=EDGE_CURVE('',#83,#80,#43,.T.);
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#74=EDGE_CURVE('',#84,#85,#44,.T.);
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#75=EDGE_CURVE('',#85,#86,#45,.T.);
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#76=EDGE_CURVE('',#86,#87,#46,.T.);
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#77=EDGE_CURVE('',#87,#84,#47,.T.);
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#78=EDGE_CURVE('',#80,#84,#48,.T.);
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#79=EDGE_CURVE('',#81,#85,#49,.T.);
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#80=VERTEX_POINT('',#1);
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#81=VERTEX_POINT('',#2);
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#82=VERTEX_POINT('',#3);
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#83=VERTEX_POINT('',#4);
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#84=VERTEX_POINT('',#5);
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#85=VERTEX_POINT('',#6);
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#86=VERTEX_POINT('',#7);
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#87=VERTEX_POINT('',#8);
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#90=EDGE_CURVE('',#82,#86,#50,.T.);
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#91=EDGE_CURVE('',#85,#81,#52,.T.);
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#92=EDGE_CURVE('',#83,#87,#53,.T.);
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#93=EDGE_CURVE('',#86,#87,#54,.T.);
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#94=EDGE_CURVE('',#81,#80,#55,.T.);
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#95=EDGE_CURVE('',#84,#80,#56,.T.);
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#96=EDGE_CURVE('',#82,#83,#57,.T.);
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#97=EDGE_CURVE('',#87,#84,#58,.T.);
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#98=EDGE_CURVE('',#80,#83,#59,.T.);
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#99=EDGE_CURVE('',#84,#85,#60,.T.);
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#100=ORIENTED_EDGE('',*,*,#70,.T.);
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#101=ORIENTED_EDGE('',*,*,#71,.T.);
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#102=ORIENTED_EDGE('',*,*,#72,.T.);
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#103=ORIENTED_EDGE('',*,*,#73,.T.);
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#104=ORIENTED_EDGE('',*,*,#74,.F.);
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#105=ORIENTED_EDGE('',*,*,#75,.F.);
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#106=ORIENTED_EDGE('',*,*,#76,.F.);
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#107=ORIENTED_EDGE('',*,*,#77,.F.);
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#108=ORIENTED_EDGE('',*,*,#78,.T.);
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#109=ORIENTED_EDGE('',*,*,#94,.T.);
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#110=ORIENTED_EDGE('',*,*,#95,.F.);
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#111=ORIENTED_EDGE('',*,*,#98,.T.);
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#112=ORIENTED_EDGE('',*,*,#56,.T.);
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#113=ORIENTED_EDGE('',*,*,#79,.T.);
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#114=ORIENTED_EDGE('',*,*,#91,.T.);
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#115=ORIENTED_EDGE('',*,*,#90,.F.);
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#116=ORIENTED_EDGE('',*,*,#96,.F.);
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#117=ORIENTED_EDGE('',*,*,#92,.T.);
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#118=ORIENTED_EDGE('',*,*,#97,.F.);
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#119=ORIENTED_EDGE('',*,*,#54,.T.);
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#120=ORIENTED_EDGE('',*,*,#93,.F.);
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#121=ORIENTED_EDGE('',*,*,#46,.T.);
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#122=ORIENTED_EDGE('',*,*,#60,.T.);
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#123=ORIENTED_EDGE('',*,*,#99,.F.);
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#130=EDGE_LOOP('',(#100,#101,#102,#103));
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#131=EDGE_LOOP('',(#104,#105,#106,#107));
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#132=EDGE_LOOP('',(#108,#109,#110,#112));
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#133=EDGE_LOOP('',(#113,#114,#115,#116));
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#134=EDGE_LOOP('',(#117,#118,#119,#120));
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#135=EDGE_LOOP('',(#121,#122,#123,#111));
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#140=FACE_OUTER_BOUND('',#130,.T.);
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#141=FACE_OUTER_BOUND('',#131,.T.);
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#142=FACE_OUTER_BOUND('',#132,.T.);
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#143=FACE_OUTER_BOUND('',#133,.T.);
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#144=FACE_OUTER_BOUND('',#134,.T.);
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#145=FACE_OUTER_BOUND('',#135,.T.);
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#150=ADVANCED_FACE('',(#140),#30,.T.);
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#151=ADVANCED_FACE('',(#141),#31,.T.);
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#152=ADVANCED_FACE('',(#142),#32,.T.);
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#153=ADVANCED_FACE('',(#143),#33,.T.);
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#154=ADVANCED_FACE('',(#144),#34,.T.);
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#155=ADVANCED_FACE('',(#145),#35,.T.);
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#160=CLOSED_SHELL('',(#150,#151,#152,#153,#154,#155));
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#170=MANIFOLD_SOLID_BREP('box',#160);
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)" + step_footer();
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auto bodies = import_step_from_string(step);
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EXPECT_EQ(step_last_error(), StepError::Ok);
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ASSERT_GE(bodies.size(), 1u);
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const auto& body = bodies[0];
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EXPECT_TRUE(body.is_valid());
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EXPECT_GE(body.num_faces(), 6u);
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EXPECT_GE(body.num_edges(), 12u);
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EXPECT_GE(body.num_vertices(), 8u);
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EXPECT_EQ(body.num_bodies(), 1u);
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}
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// ─────────────────────────────────────────────────────────────
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// Test: Simple box with CIRCLE edge (cylinder top/bottom face)
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// ─────────────────────────────────────────────────────────────
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TEST(StepImport, SimpleCylinder) {
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// A simple cylinder: bottom circle + top circle + cylindrical side surface
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std::string step = step_header() + R"(
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#1=CARTESIAN_POINT('',(0.0,0.0,-2.0));
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#2=CARTESIAN_POINT('',(0.0,0.0,2.0));
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#3=CARTESIAN_POINT('',(1.0,0.0,-2.0));
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#4=CARTESIAN_POINT('',(1.0,0.0,2.0));
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#10=DIRECTION('',(0.0,0.0,1.0));
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#11=DIRECTION('',(1.0,0.0,0.0));
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#12=DIRECTION('',(0.0,1.0,0.0));
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#20=AXIS2_PLACEMENT_3D('',#1,#10,#11);
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#21=AXIS2_PLACEMENT_3D('',#2,#10,#11);
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#30=PLANE('',#20);
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#31=PLANE('',#21);
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#40=CIRCLE('',#20,1.0);
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#41=CIRCLE('',#21,1.0);
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#50=EDGE_CURVE('',#80,#80,#40,.T.);
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#51=EDGE_CURVE('',#81,#81,#41,.T.);
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#60=LINE('',#3,#10);
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#70=EDGE_CURVE('',#80,#81,#60,.T.);
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#80=VERTEX_POINT('',#3);
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#81=VERTEX_POINT('',#4);
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#90=ORIENTED_EDGE('',*,*,#50,.T.);
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#91=ORIENTED_EDGE('',*,*,#51,.F.);
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#92=ORIENTED_EDGE('',*,*,#70,.T.);
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#100=EDGE_LOOP('',(#90));
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#101=EDGE_LOOP('',(#91));
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#110=FACE_OUTER_BOUND('',#100,.T.);
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#111=FACE_OUTER_BOUND('',#101,.T.);
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#120=ADVANCED_FACE('',(#110),#30,.T.);
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#121=ADVANCED_FACE('',(#111),#31,.T.);
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#142=CYLINDRICAL_SURFACE('',#20,1.0);
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#143=ADVANCED_FACE('',(#110),#142,.T.);
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#150=CLOSED_SHELL('',(#120,#121,#143));
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#160=MANIFOLD_SOLID_BREP('cylinder',#150);
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)" + step_footer();
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auto bodies = import_step_from_string(step);
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ASSERT_GE(bodies.size(), 1u);
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const auto& body = bodies[0];
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EXPECT_TRUE(body.is_valid());
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EXPECT_GE(body.num_faces(), 3u);
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}
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// ─────────────────────────────────────────────────────────────
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// Test: Parse STEP with multiple bodies
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// ─────────────────────────────────────────────────────────────
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TEST(StepImport, MultipleBodies) {
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// Two simple models: one circle-face body at origin, one at offset
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std::string step = step_header() + R"(
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#10=CARTESIAN_POINT('',(0.0,0.0,0.0));
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#11=DIRECTION('',(0.0,0.0,1.0));
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#12=DIRECTION('',(1.0,0.0,0.0));
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#13=AXIS2_PLACEMENT_3D('',#10,#11,#12);
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#14=CARTESIAN_POINT('',(5.0,0.0,0.0));
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#15=VERTEX_POINT('',#14);
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#16=CIRCLE('',#13,5.0);
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#17=EDGE_CURVE('',#15,#15,#16,.T.);
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#18=ORIENTED_EDGE('',*,*,#17,.T.);
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#19=EDGE_LOOP('',(#18));
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#20=FACE_OUTER_BOUND('',#19,.T.);
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#21=PLANE('',#13);
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#22=ADVANCED_FACE('',(#20),#21,.T.);
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#23=CLOSED_SHELL('',(#22));
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#24=MANIFOLD_SOLID_BREP('body1',#23);
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#30=CARTESIAN_POINT('',(20.0,0.0,0.0));
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#31=AXIS2_PLACEMENT_3D('',#30,#11,#12);
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#32=CARTESIAN_POINT('',(23.0,0.0,0.0));
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#33=VERTEX_POINT('',#32);
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#34=CIRCLE('',#31,3.0);
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#35=EDGE_CURVE('',#33,#33,#34,.T.);
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#36=ORIENTED_EDGE('',*,*,#35,.T.);
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#37=EDGE_LOOP('',(#36));
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#38=FACE_OUTER_BOUND('',#37,.T.);
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#39=PLANE('',#31);
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#40=ADVANCED_FACE('',(#38),#39,.T.);
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#41=CLOSED_SHELL('',(#40));
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#42=MANIFOLD_SOLID_BREP('body2',#41);
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)" + step_footer();
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auto bodies = import_step_from_string(step);
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EXPECT_EQ(step_last_error(), StepError::Ok);
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ASSERT_GE(bodies.size(), 2u);
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EXPECT_TRUE(bodies[0].is_valid());
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EXPECT_TRUE(bodies[1].is_valid());
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EXPECT_GE(bodies[0].num_faces(), 1u);
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EXPECT_GE(bodies[1].num_faces(), 1u);
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}
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// ─────────────────────────────────────────────────────────────
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// Test: Invalid input → graceful error
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// ─────────────────────────────────────────────────────────────
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TEST(StepImport, EmptyInput) {
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auto bodies = import_step_from_string("");
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EXPECT_NE(step_last_error(), StepError::Ok);
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EXPECT_TRUE(bodies.empty());
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}
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TEST(StepImport, GarbageInput) {
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auto bodies = import_step_from_string("this is not a step file at all");
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EXPECT_NE(step_last_error(), StepError::Ok);
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EXPECT_TRUE(bodies.empty());
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}
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TEST(StepImport, MissingEndsec) {
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std::string step = step_header() + "#1=CARTESIAN_POINT('',(0,0,0));";
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// Missing ENDSEC and footer
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auto bodies = import_step_from_string(step);
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// May or may not produce bodies depending on where it fails
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// But should not crash
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EXPECT_NO_THROW(import_step_from_string(step));
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}
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TEST(StepImport, OnlyHeader) {
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std::string step = step_header() + step_footer();
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auto bodies = import_step_from_string(step);
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// Empty DATA section → no bodies
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EXPECT_EQ(bodies.size(), 0u);
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}
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TEST(StepImport, MissingEntityId) {
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std::string step = step_header() + "CARTESIAN_POINT('',(0,0,0));\n" + step_footer();
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auto bodies = import_step_from_string(step);
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EXPECT_NE(step_last_error(), StepError::Ok);
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}
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// ─────────────────────────────────────────────────────────────
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// Test: Circle and ellipse curves
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// ─────────────────────────────────────────────────────────────
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TEST(StepImport, CircleCurve) {
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std::string step = step_header() + R"(
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#1=CARTESIAN_POINT('',(0.0,0.0,0.0));
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#2=DIRECTION('',(0.0,0.0,1.0));
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#3=DIRECTION('',(1.0,0.0,0.0));
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#4=AXIS2_PLACEMENT_3D('',#1,#2,#3);
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#5=CARTESIAN_POINT('',(5.0,0.0,0.0));
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#6=VERTEX_POINT('',#5);
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#7=CIRCLE('',#4,5.0);
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#8=EDGE_CURVE('',#6,#6,#7,.T.);
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#9=ORIENTED_EDGE('',*,*,#8,.T.);
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#10=EDGE_LOOP('',(#9));
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#11=FACE_OUTER_BOUND('',#10,.T.);
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#12=PLANE('',#4);
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#13=ADVANCED_FACE('',(#11),#12,.T.);
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#14=CLOSED_SHELL('',(#13));
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#15=MANIFOLD_SOLID_BREP('circle_test',#14);
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)" + step_footer();
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auto bodies = import_step_from_string(step);
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ASSERT_GE(bodies.size(), 1u);
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EXPECT_TRUE(bodies[0].is_valid());
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EXPECT_GE(bodies[0].num_vertices(), 1u);
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}
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TEST(StepImport, EllipseCurve) {
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std::string step = step_header() + R"(
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#1=CARTESIAN_POINT('',(0.0,0.0,0.0));
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#2=DIRECTION('',(0.0,0.0,1.0));
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#3=DIRECTION('',(1.0,0.0,0.0));
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#4=AXIS2_PLACEMENT_3D('',#1,#2,#3);
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#5=CARTESIAN_POINT('',(3.0,0.0,0.0));
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#6=VERTEX_POINT('',#5);
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#7=ELLIPSE('',#4,3.0,1.0);
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#8=EDGE_CURVE('',#6,#6,#7,.T.);
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#9=ORIENTED_EDGE('',*,*,#8,.T.);
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#10=EDGE_LOOP('',(#9));
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#11=FACE_OUTER_BOUND('',#10,.T.);
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#12=PLANE('',#4);
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#13=ADVANCED_FACE('',(#11),#12,.T.);
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#14=CLOSED_SHELL('',(#13));
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#15=MANIFOLD_SOLID_BREP('ellipse_test',#14);
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)" + step_footer();
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auto bodies = import_step_from_string(step);
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ASSERT_GE(bodies.size(), 1u);
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EXPECT_TRUE(bodies[0].is_valid());
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}
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// ─────────────────────────────────────────────────────────────
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// Test: STEP surfaces
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// ─────────────────────────────────────────────────────────────
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TEST(StepImport, SphericalSurface) {
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std::string step = step_header() + R"(
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#1=CARTESIAN_POINT('',(0.0,0.0,0.0));
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#2=CARTESIAN_POINT('',(1.0,0.0,0.0));
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#3=DIRECTION('',(0.0,0.0,1.0));
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#4=DIRECTION('',(1.0,0.0,0.0));
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#5=AXIS2_PLACEMENT_3D('',#1,#3,#4);
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#6=VERTEX_POINT('',#2);
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#7=SPHERICAL_SURFACE('',#5,5.0);
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#8=CIRCLE('',#5,5.0);
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#9=EDGE_CURVE('',#6,#6,#8,.T.);
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#10=ORIENTED_EDGE('',*,*,#9,.T.);
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#11=EDGE_LOOP('',(#10));
|
||
#12=FACE_OUTER_BOUND('',#11,.T.);
|
||
#13=ADVANCED_FACE('',(#12),#7,.T.);
|
||
#14=CLOSED_SHELL('',(#13));
|
||
#15=MANIFOLD_SOLID_BREP('sphere',#14);
|
||
)" + step_footer();
|
||
|
||
auto bodies = import_step_from_string(step);
|
||
ASSERT_GE(bodies.size(), 1u);
|
||
EXPECT_TRUE(bodies[0].is_valid());
|
||
EXPECT_GE(bodies[0].num_faces(), 1u);
|
||
}
|
||
|
||
TEST(StepImport, ToroidalSurface) {
|
||
std::string step = step_header() + R"(
|
||
#1=CARTESIAN_POINT('',(0.0,0.0,0.0));
|
||
#2=DIRECTION('',(0.0,0.0,1.0));
|
||
#3=DIRECTION('',(1.0,0.0,0.0));
|
||
#4=AXIS2_PLACEMENT_3D('',#1,#2,#3);
|
||
#5=CARTESIAN_POINT('',(8.0,0.0,0.0));
|
||
#6=VERTEX_POINT('',#5);
|
||
#7=TOROIDAL_SURFACE('',#4,5.0,2.0);
|
||
#8=CIRCLE('',#4,5.0);
|
||
#9=EDGE_CURVE('',#6,#6,#8,.T.);
|
||
#10=ORIENTED_EDGE('',*,*,#9,.T.);
|
||
#11=EDGE_LOOP('',(#10));
|
||
#12=FACE_OUTER_BOUND('',#11,.T.);
|
||
#13=ADVANCED_FACE('',(#12),#7,.T.);
|
||
#14=CLOSED_SHELL('',(#13));
|
||
#15=MANIFOLD_SOLID_BREP('torus',#14);
|
||
)" + step_footer();
|
||
|
||
auto bodies = import_step_from_string(step);
|
||
ASSERT_GE(bodies.size(), 1u);
|
||
EXPECT_TRUE(bodies[0].is_valid());
|
||
}
|
||
|
||
// ─────────────────────────────────────────────────────────────
|
||
// Test: B_SPLINE_CURVE and B_SPLINE_SURFACE
|
||
// ─────────────────────────────────────────────────────────────
|
||
|
||
TEST(StepImport, BSplineCurve) {
|
||
std::string step = step_header() + R"(
|
||
#1=CARTESIAN_POINT('',(0.0,0.0,0.0));
|
||
#2=CARTESIAN_POINT('',(1.0,2.0,0.0));
|
||
#3=CARTESIAN_POINT('',(3.0,1.0,0.0));
|
||
#4=CARTESIAN_POINT('',(4.0,0.0,0.0));
|
||
#10=B_SPLINE_CURVE_WITH_KNOTS('',3,(#1,#2,#3,#4),.UNSPECIFIED.,.F.,.F.,(4,1,1,4),(0.0,0.25,0.75,1.0),.PIECEWISE_BEZIER_KNOTS.);
|
||
#11=CARTESIAN_POINT('',(0.0,0.0,0.0));
|
||
#12=CARTESIAN_POINT('',(4.0,0.0,0.0));
|
||
#20=VERTEX_POINT('',#11);
|
||
#21=VERTEX_POINT('',#12);
|
||
#30=EDGE_CURVE('',#20,#21,#10,.T.);
|
||
#40=LINE('',#11,#12);
|
||
#41=EDGE_CURVE('',#21,#20,#40,.T.);
|
||
#50=ORIENTED_EDGE('',*,*,#30,.T.);
|
||
#51=ORIENTED_EDGE('',*,*,#41,.T.);
|
||
#60=EDGE_LOOP('',(#50,#51));
|
||
#61=FACE_OUTER_BOUND('',#60,.T.);
|
||
#70=DIRECTION('',(0.0,0.0,1.0));
|
||
#71=DIRECTION('',(1.0,0.0,0.0));
|
||
#72=AXIS2_PLACEMENT_3D('',#11,#70,#71);
|
||
#73=PLANE('',#72);
|
||
#80=ADVANCED_FACE('',(#61),#73,.T.);
|
||
#90=CLOSED_SHELL('',(#80));
|
||
#100=MANIFOLD_SOLID_BREP('bspline_curve',#90);
|
||
)" + step_footer();
|
||
|
||
auto bodies = import_step_from_string(step);
|
||
ASSERT_GE(bodies.size(), 1u);
|
||
EXPECT_TRUE(bodies[0].is_valid());
|
||
}
|
||
|
||
// ─────────────────────────────────────────────────────────────
|
||
// Test: Round-trip (create → export is not available, but we
|
||
// can test creating a BrepModel programmatically and compare)
|
||
// ─────────────────────────────────────────────────────────────
|
||
|
||
TEST(StepImport, ProgrammaticBrepCanBeUsed) {
|
||
auto box = make_box(2.0, 2.0, 2.0);
|
||
EXPECT_TRUE(box.is_valid());
|
||
|
||
// Verify the box can be tessellated
|
||
auto mesh = box.to_mesh();
|
||
EXPECT_GT(mesh.num_faces(), 0u);
|
||
|
||
// Verify face and edge queries work after import
|
||
auto edges = box.face_edges(0);
|
||
EXPECT_FALSE(edges.empty());
|
||
|
||
auto efs = box.edge_faces(0);
|
||
EXPECT_FALSE(efs.empty());
|
||
}
|
||
|
||
// ─────────────────────────────────────────────────────────────
|
||
// Test: String escaping in STEP
|
||
// ─────────────────────────────────────────────────────────────
|
||
|
||
TEST(StepImport, StringEscaping) {
|
||
std::string step = step_header() + R"(
|
||
#1=CARTESIAN_POINT('name with spaces',(1.0,2.0,3.0));
|
||
#2=CARTESIAN_POINT('it''s escaped',(4.0,5.0,6.0));
|
||
)" + step_footer();
|
||
|
||
auto bodies = import_step_from_string(step);
|
||
// No bodies (no topology) but should not crash
|
||
EXPECT_EQ(bodies.size(), 0u);
|
||
}
|
||
|
||
// ─────────────────────────────────────────────────────────────
|
||
// Test: Entities with omitted parameters ($)
|
||
// ─────────────────────────────────────────────────────────────
|
||
|
||
TEST(StepImport, OmittedParameters) {
|
||
std::string step = step_header() + R"(
|
||
#1=CARTESIAN_POINT('',(0.0,0.0,0.0));
|
||
#2=DIRECTION('',(0.0,0.0,1.0));
|
||
#3=AXIS2_PLACEMENT_3D('',#1,#2,$);
|
||
#4=CARTESIAN_POINT('',(5.0,0.0,0.0));
|
||
#5=VERTEX_POINT('',#4);
|
||
#6=CIRCLE('',#3,5.0);
|
||
#7=EDGE_CURVE('',#5,#5,#6,.T.);
|
||
#8=ORIENTED_EDGE('',*,*,#7,.T.);
|
||
#9=EDGE_LOOP('',(#8));
|
||
#10=FACE_OUTER_BOUND('',#9,.T.);
|
||
#11=PLANE('',#3);
|
||
#12=ADVANCED_FACE('',(#10),#11,.T.);
|
||
#13=CLOSED_SHELL('',(#12));
|
||
#14=MANIFOLD_SOLID_BREP('omitted_test',#13);
|
||
)" + step_footer();
|
||
|
||
auto bodies = import_step_from_string(step);
|
||
ASSERT_GE(bodies.size(), 1u);
|
||
EXPECT_TRUE(bodies[0].is_valid());
|
||
}
|
||
|
||
// ─────────────────────────────────────────────────────────────
|
||
// Test: STEP file with comments
|
||
// ─────────────────────────────────────────────────────────────
|
||
|
||
TEST(StepImport, Comments) {
|
||
std::string step = step_header() + R"(
|
||
/* This is a comment block */
|
||
#1=CARTESIAN_POINT('',(0.0,0.0,0.0)); /* inline comment */
|
||
#2=DIRECTION('',(0.0,0.0,1.0));
|
||
#3=AXIS2_PLACEMENT_3D('',#1,#2,$);
|
||
#4=CARTESIAN_POINT('',(5.0,0.0,0.0));
|
||
#5=VERTEX_POINT('',#4);
|
||
#6=CIRCLE('',#3,5.0);
|
||
#7=EDGE_CURVE('',#5,#5,#6,.T.);
|
||
#8=ORIENTED_EDGE('',*,*,#7,.T.);
|
||
#9=EDGE_LOOP('',(#8));
|
||
#10=FACE_OUTER_BOUND('',#9,.T.);
|
||
#11=PLANE('',#3);
|
||
#12=ADVANCED_FACE('',(#10),#11,.T.);
|
||
#13=CLOSED_SHELL('',(#12));
|
||
#14=MANIFOLD_SOLID_BREP('commented',#13);
|
||
)" + step_footer();
|
||
|
||
auto bodies = import_step_from_string(step);
|
||
ASSERT_GE(bodies.size(), 1u);
|
||
EXPECT_TRUE(bodies[0].is_valid());
|
||
}
|
||
|
||
// ─────────────────────────────────────────────────────────────
|
||
// Test: Multi-line entities
|
||
// ─────────────────────────────────────────────────────────────
|
||
|
||
TEST(StepImport, MultiLineEntities) {
|
||
std::string step = step_header() + R"(
|
||
#1=CARTESIAN_POINT('',
|
||
(0.0,0.0,0.0));
|
||
#2=CARTESIAN_POINT('',(
|
||
5.0,0.0,0.0));
|
||
#3=DIRECTION('',
|
||
(0.0,0.0,1.0));
|
||
#4=AXIS2_PLACEMENT_3D('point',
|
||
#1,#3,$);
|
||
#5=VERTEX_POINT('',#2);
|
||
#6=CIRCLE('round',#4,5.0);
|
||
#7=EDGE_CURVE('edge',
|
||
#5,#5,#6,.T.);
|
||
#8=ORIENTED_EDGE('',*,*,#7,.T.);
|
||
#9=EDGE_LOOP('',(#8));
|
||
#10=FACE_OUTER_BOUND('',#9,.T.);
|
||
#11=PLANE('flat',#4);
|
||
#12=ADVANCED_FACE('face',(#10),#11,.T.);
|
||
#13=CLOSED_SHELL('shell',(#12));
|
||
#14=MANIFOLD_SOLID_BREP('solid',#13);
|
||
)" + step_footer();
|
||
|
||
auto bodies = import_step_from_string(step);
|
||
ASSERT_GE(bodies.size(), 1u);
|
||
EXPECT_TRUE(bodies[0].is_valid());
|
||
}
|
||
|
||
// ─────────────────────────────────────────────────────────────
|
||
// Test: SHELL_BASED_SURFACE_MODEL (alternative to MANIFOLD_SOLID_BREP)
|
||
// ─────────────────────────────────────────────────────────────
|
||
|
||
TEST(StepImport, ShellBasedSurfaceModel) {
|
||
std::string step = step_header() + R"(
|
||
#1=CARTESIAN_POINT('',(0.0,0.0,0.0));
|
||
#2=DIRECTION('',(0.0,0.0,1.0));
|
||
#3=AXIS2_PLACEMENT_3D('',#1,#2,$);
|
||
#4=CARTESIAN_POINT('',(3.0,0.0,0.0));
|
||
#5=VERTEX_POINT('',#4);
|
||
#6=CIRCLE('',#3,3.0);
|
||
#7=EDGE_CURVE('',#5,#5,#6,.T.);
|
||
#8=ORIENTED_EDGE('',*,*,#7,.T.);
|
||
#9=EDGE_LOOP('',(#8));
|
||
#10=FACE_OUTER_BOUND('',#9,.T.);
|
||
#11=PLANE('',#3);
|
||
#12=ADVANCED_FACE('',(#10),#11,.T.);
|
||
#13=CLOSED_SHELL('',(#12));
|
||
#14=SHELL_BASED_SURFACE_MODEL('',(#13));
|
||
)" + step_footer();
|
||
|
||
auto bodies = import_step_from_string(step);
|
||
ASSERT_GE(bodies.size(), 1u);
|
||
EXPECT_TRUE(bodies[0].is_valid());
|
||
EXPECT_GE(bodies[0].num_faces(), 1u);
|
||
}
|