Fix incorrect seam allowance. Closes #112

ChangeLog.txt

@@ -2,6 +2,7 @@
 - Fix incorrect calculation of value for multisize measurements in Valentina.
 - [smart-pattern/valentina#109] Pattern label template placeholder with dimension label value.
 - Incorrect duplication of a piece. Missing restoring pins.
+- [smart-pattern/valentina#112] Incorrect seam allowance.
 
 # Version 0.7.45 Feb 26, 2021
 - Fix incorrect seam allowance for angle type second edge right angle.

src/libs/vlayout/testpath.cpp

@@ -28,7 +28,6 @@
 #include "testpath.h"
 
 #include <QVector>
-#include <QJsonArray>
 #include <QTemporaryFile>
 #include <QJsonObject>
 #include <QTextStream>
@@ -62,15 +61,4 @@ void VectorToJson(const QVector<QPointF> &points, QJsonObject &json)
     json[QLatin1String("vector")] = pointsArray;
 }
 
-//---------------------------------------------------------------------------------------------------------------------
-void VectorToJson(const QVector<VSAPoint> &points, QJsonObject &json)
-{
-    QJsonArray pointsArray;
-    for (auto point: points)
-    {
-        pointsArray.append(point.toJson());
-    }
-    json[QLatin1String("vector")] = pointsArray;
-}
-
 #endif // !defined(V_NO_ASSERT)

src/libs/vlayout/testpath.h

@@ -30,20 +30,23 @@
 
 #include <QDir>
 #include <QJsonDocument>
+#include <QJsonArray>
 #include <QJsonObject>
 #include <QString>
 #include <QTemporaryFile>
 #include <QTextStream>
 
 class QPointF;
-class QJsonObject;
 template <class T> class QVector;
 class VSAPoint;
+class VRawSAPoint;
 
 #if !defined(V_NO_ASSERT)
 QJsonObject PointToJson(const QPointF &point);
 void VectorToJson(const QVector<QPointF> &points, QJsonObject &json);
-void VectorToJson(const QVector<VSAPoint> &points, QJsonObject &json);
+
+template <class T>
+void VectorToJson(const QVector<T> &points, QJsonObject &json);
 
 //---------------------------------------------------------------------------------------------------------------------
 template <class T>
@@ -78,6 +81,17 @@ void DumpVector(const QVector<T> &points, const QString &templateName=QString())
         out.flush();
     }
 }
-#endif // !defined(V_NO_ASSERT)
 
+//---------------------------------------------------------------------------------------------------------------------
+template <class T>
+void VectorToJson(const QVector<T> &points, QJsonObject &json)
+{
+    QJsonArray pointsArray;
+    for (auto point: points)
+    {
+        pointsArray.append(point.toJson());
+    }
+    json[QLatin1String("vector")] = pointsArray;
+}
+#endif // !defined(V_NO_ASSERT)
 #endif // TESTPATH_H

src/libs/vlayout/vabstractpiece.cpp

@@ -1213,70 +1213,48 @@ QVector<QPointF> VAbstractPiece::CheckLoops(const QVector<QPointF> &points)
  */
 auto VAbstractPiece::CheckLoops(const QVector<VRawSAPoint> &points) -> QVector<QPointF>
 {
-//    DumpVector(points); // Uncomment for dumping test data
+//    DumpVector(points, QStringLiteral("input.json.XXXXXX")); // Uncomment for dumping test data
 
-    int count = points.size();
     /*If we got less than 4 points no need seek loops.*/
-    if (count < 4)
+    if (points.size() < 4)
     {
         return CleanLoopArtifacts(points);
     }
 
-    const bool pathClosed = (points.first() == points.last());
+    bool loopFound = false;
 
-    QVector<VRawSAPoint> ekvPoints;
+    auto CheckLoop = [&loopFound](const QVector<VRawSAPoint> &points)
-    ekvPoints.reserve(points.size());
-
-    QVector<qint32> uniqueVertices;
-    uniqueVertices.reserve(4);
-
-    qint32 i, j, jNext = 0;
-    for (i = 0; i < count; ++i)
     {
-        /*Last three points no need to check.*/
+        loopFound = false;
-        /*Triangle can not contain a loop*/
+
-        if (i > count-3)
+        const bool pathClosed = (points.first() == points.last());
+
+        QVector<VRawSAPoint> ekvPoints;
+        ekvPoints.reserve(points.size());
+
+        qint32 i;
+        for (i = 0; i < points.size(); ++i)
         {
-            ekvPoints.append(points.at(i));
+            /*Last three points no need to check.*/
-            continue;
+            /*Triangle can not contain a loop*/
-        }
+            if (loopFound || i > points.size()-4)
-
+            {
-        enum LoopIntersectType { NoIntersection, BoundedIntersection, ParallelIntersection };
+                ekvPoints.append(points.at(i));
-
-        QPointF crosPoint;
-        LoopIntersectType status = NoIntersection;
-        const QLineF line1(points.at(i), points.at(i+1));
-        // Because a path can contains several loops we will seek the last and only then remove the loop(s)
-        // That's why we parse from the end
-        for (j = count-1; j >= i+2; --j)
-        {
-            j == count-1 ? jNext = 0 : jNext = j+1;
-            QLineF line2(points.at(j), points.at(jNext));
-
-            if(qFuzzyIsNull(line2.length()))
-            {//If a path is closed the edge (count-1;0) length will be 0
                 continue;
             }
 
-            uniqueVertices.clear();
+            enum LoopIntersectType { NoIntersection, BoundedIntersection, ParallelIntersection };
 
-            auto AddUniqueIndex = [&uniqueVertices](qint32 i)
+            QPointF crosPoint;
+            LoopIntersectType status = NoIntersection;
+            const QLineF line1(points.at(i), points.at(i+1));
+
+            const int limit = pathClosed && i == 0 ? 2 : 1;
+            qint32 j;
+            for (j = i+2; j < points.size()-limit; ++j)
             {
-                if (not uniqueVertices.contains(i))
+                QLineF line2(points.at(j), points.at(j+1));
-                {
-                    uniqueVertices.append(i);
-                }
-            };
 
-            AddUniqueIndex(i);
-            AddUniqueIndex(i+1);
-            AddUniqueIndex(j);
-
-            // For closed path last point is equal to first. Using index of the first.
-            pathClosed && jNext == count-1 ? AddUniqueIndex(0) : AddUniqueIndex(jNext);
-
-            if (uniqueVertices.size() == 4)
-            {// Lines are not neighbors
                 const QLineF::IntersectType intersect = Intersects(line1, line2, &crosPoint);
                 if (intersect == QLineF::NoIntersection)
                 { // According to the documentation QLineF::NoIntersection indicates that the lines do not intersect;
@@ -1294,32 +1272,48 @@ auto VAbstractPiece::CheckLoops(const QVector<VRawSAPoint> &points) -> QVector<Q
                     break;
                 }
             }
-            status = NoIntersection;
-        }
 
-        switch (status)
+            switch (status)
+            {
+                case ParallelIntersection:
+                    /*We have found a loop.*/
+                    ekvPoints.append(points.at(i));
+                    ekvPoints.append(points.at(j+1));
+                    i = j+1; // Skip a loop
+                    loopFound = true;
+                    break;
+                case BoundedIntersection:
+                    ekvPoints.append(points.at(i));
+                    ekvPoints.append(crosPoint);
+                    i = j;
+                    loopFound = true;
+                    break;
+                case NoIntersection:
+                    /*We have not found loop.*/
+                    ekvPoints.append(points.at(i));
+                    break;
+                default:
+                    break;
+            }
+        }
+        return ekvPoints;
+    };
+
+    QVector<VRawSAPoint> ekvPoints = points;
+    qint32 i;
+    const int maxLoops = 10000; // limit number of loops to be removed
+
+    for (i = 0; i < maxLoops; ++i)
+    {
+        ekvPoints = CheckLoop(ekvPoints);
+        if (not loopFound)
         {
-            case ParallelIntersection:
+            break;
-                /*We have found a loop.*/
-                ekvPoints.append(points.at(i));
-                ekvPoints.append(points.at(jNext));
-                jNext > j ? i = jNext : i = j; // Skip a loop
-                break;
-            case BoundedIntersection:
-                ekvPoints.append(points.at(i));
-                ekvPoints.append(crosPoint);
-                i = j;
-                break;
-            case NoIntersection:
-                /*We have not found loop.*/
-                ekvPoints.append(points.at(i));
-                break;
-            default:
-                break;
         }
     }
+
     const QVector<QPointF> cleaned = CleanLoopArtifacts(ekvPoints);
-//    DumpVector(cleaned); // Uncomment for dumping test data
+//    DumpVector(cleaned, QStringLiteral("output.json.XXXXXX")); // Uncomment for dumping test data
     return cleaned;
 }
 

src/libs/vtest/abstracttest.cpp

@@ -56,6 +56,7 @@
 #include "../vgeometry/vspline.h"
 #include "../vgeometry/vsplinepath.h"
 #include "../vlayout/vabstractpiece.h"
+#include "../vlayout/vrawsapoint.h"
 #include "../vpatterndb/vcontainer.h"
 #include "../vpatterndb/vpiece.h"
 #include "../vpatterndb/vpiecenode.h"
@@ -68,7 +69,7 @@ AbstractTest::AbstractTest(QObject *parent) :
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-void AbstractTest::VectorFromJson(const QString &json, QVector<QPointF>& vector)
+void AbstractTest::VectorFromJson(const QString &json, QVector<QPointF>& vector) const
 {
     QByteArray saveData;
     PrepareDocument(json, saveData);
@@ -102,7 +103,7 @@ void AbstractTest::VectorFromJson(const QString &json, QVector<QPointF>& vector)
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-void AbstractTest::VectorFromJson(const QString &json, QVector<VSAPoint> &vector)
+void AbstractTest::VectorFromJson(const QString &json, QVector<VSAPoint> &vector) const
 {
     QByteArray saveData;
     PrepareDocument(json, saveData);
@@ -133,6 +134,38 @@ void AbstractTest::VectorFromJson(const QString &json, QVector<VSAPoint> &vector
     }
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void AbstractTest::VectorFromJson(const QString &json, QVector<VRawSAPoint> &vector) const
+{
+    QByteArray saveData;
+    PrepareDocument(json, saveData);
+    QJsonDocument loadDoc(QJsonDocument::fromJson(saveData));
+
+    const QString vectorKey = QStringLiteral("vector");
+
+    QJsonObject vectorObject = loadDoc.object();
+    TestRoot(vectorObject, vectorKey, json);
+
+    QJsonArray vectorArray = vectorObject[vectorKey].toArray();
+    for (int i = 0; i < vectorArray.size(); ++i)
+    {
+        QJsonObject pointObject = vectorArray[i].toObject();
+
+        QString type;
+        AbstractTest::ReadStringValue(pointObject, QStringLiteral("type"), type);
+
+        if (type != QLatin1String("VRawSAPoint"))
+        {
+            const QString error = QStringLiteral("Invalid json file '%1'. Unexpected class '%2'.").arg(json, type);
+            QFAIL(qUtf8Printable(error));
+        }
+
+        VRawSAPoint point;
+        RawSAPointFromJson(pointObject, point);
+        vector.append(point);
+    }
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void AbstractTest::PieceFromJson(const QString &json, VPiece &piece, QSharedPointer<VContainer> &data)
 {
@@ -505,7 +538,7 @@ void AbstractTest::PrepareDocument(const QString &json, QByteArray &data) const
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-void AbstractTest::TestRoot(const QJsonObject &root, const QString &attribute, const QString &file)
+void AbstractTest::TestRoot(const QJsonObject &root, const QString &attribute, const QString &file) const
 {
     if (not root.contains(attribute))
     {
@@ -516,7 +549,7 @@ void AbstractTest::TestRoot(const QJsonObject &root, const QString &attribute, c
 
 //---------------------------------------------------------------------------------------------------------------------
 void AbstractTest::ReadStringValue(const QJsonObject &itemObject, const QString &attribute, QString &value,
-                                   const QString &defaultValue)
+                                   const QString &defaultValue) const
 {
     if (itemObject.contains(attribute))
     {
@@ -547,7 +580,7 @@ void AbstractTest::ReadStringValue(const QJsonObject &itemObject, const QString
 
 //---------------------------------------------------------------------------------------------------------------------
 void AbstractTest::ReadBooleanValue(const QJsonObject &itemObject, const QString &attribute, bool &value,
-                                    const QString &defaultValue)
+                                    const QString &defaultValue) const
 {
     if (itemObject.contains(attribute))
     {
@@ -674,7 +707,7 @@ void AbstractTest::ReadPieceNodeValue(const QJsonObject &itemObject, VPieceNode
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-void AbstractTest::QPointFromJson(const QJsonObject &itemObject, QPointF &point)
+void AbstractTest::QPointFromJson(const QJsonObject &itemObject, QPointF &point) const
 {
     qreal x = 0;
     AbstractTest::ReadDoubleValue(itemObject, QStringLiteral("x"), x);
@@ -688,7 +721,7 @@ void AbstractTest::QPointFromJson(const QJsonObject &itemObject, QPointF &point)
 //---------------------------------------------------------------------------------------------------------------------
 template<typename T, typename std::enable_if<std::is_floating_point<T>::value>::type*>
 void AbstractTest::ReadDoubleValue(const QJsonObject &itemObject, const QString &attribute, T &value,
-                                   const QString &defaultValue)
+                                   const QString &defaultValue) const
 {
     if (itemObject.contains(attribute))
     {
@@ -727,7 +760,7 @@ void AbstractTest::ReadDoubleValue(const QJsonObject &itemObject, const QString
 //---------------------------------------------------------------------------------------------------------------------
 template<typename T, typename std::enable_if<std::is_enum<T>::value>::type*>
 void AbstractTest::ReadDoubleValue(const QJsonObject &itemObject, const QString &attribute, T &value,
-                                   const QString &defaultValue)
+                                   const QString &defaultValue) const
 {
     if (itemObject.contains(attribute))
     {
@@ -766,7 +799,7 @@ void AbstractTest::ReadDoubleValue(const QJsonObject &itemObject, const QString
 //---------------------------------------------------------------------------------------------------------------------
 template<typename T, typename std::enable_if<std::is_integral<T>::value>::type*>
 void AbstractTest::ReadDoubleValue(const QJsonObject &itemObject, const QString &attribute, T &value,
-                                   const QString &defaultValue)
+                                   const QString &defaultValue) const
 {
     if (itemObject.contains(attribute))
     {
@@ -840,7 +873,7 @@ void AbstractTest::QLineFromJson(const QJsonObject &itemObject, QLineF &line)
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-void AbstractTest::SAPointFromJson(const QJsonObject &itemObject, VSAPoint &point)
+void AbstractTest::SAPointFromJson(const QJsonObject &itemObject, VSAPoint &point) const
 {
     qreal x = 0;
     AbstractTest::ReadDoubleValue(itemObject, QStringLiteral("x"), x);
@@ -864,6 +897,22 @@ void AbstractTest::SAPointFromJson(const QJsonObject &itemObject, VSAPoint &poin
     point.SetAngleType(angleType);
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void AbstractTest::RawSAPointFromJson(const QJsonObject &itemObject, VRawSAPoint &point) const
+{
+    qreal x = 0;
+    AbstractTest::ReadDoubleValue(itemObject, QStringLiteral("x"), x);
+    point.setX(x);
+
+    qreal y = 0;
+    AbstractTest::ReadDoubleValue(itemObject, QStringLiteral("y"), y);
+    point.setY(y);
+
+    bool loopPoint;
+    AbstractTest::ReadBooleanValue(itemObject, QStringLiteral("loopPoint"), loopPoint, QStringLiteral("0"));
+    point.SetLoopPoint(loopPoint);
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void AbstractTest::SplineFromJson(const QJsonObject &itemObject, QSharedPointer<VContainer> &data)
 {

src/libs/vtest/abstracttest.h

@@ -61,6 +61,7 @@ class VSplinePoint;
 class VPieceNode;
 enum class GOType : qint8;
 struct VPiecePassmarkData;
+class VRawSAPoint;
 
 class AbstractTest : public QObject
 {
@@ -68,8 +69,9 @@ class AbstractTest : public QObject
 public:
     explicit AbstractTest(QObject *parent = nullptr);
 
-    void VectorFromJson(const QString &json, QVector<QPointF>& vector);
+    void VectorFromJson(const QString &json, QVector<QPointF>& vector) const;
-    void VectorFromJson(const QString &json, QVector<VSAPoint>& vector);
+    void VectorFromJson(const QString &json, QVector<VSAPoint>& vector) const;
+    void VectorFromJson(const QString &json, QVector<VRawSAPoint>& vector) const;
 
     void PieceFromJson(const QString &json, VPiece &piece, QSharedPointer<VContainer> &data);
 
@@ -91,30 +93,31 @@ protected:
     bool CopyRecursively(const QString &srcFilePath, const QString &tgtFilePath) const;
 
     void PrepareDocument(const QString &json, QByteArray &data) const;
-    void TestRoot(const QJsonObject &root, const QString &attribute, const QString &file);
+    void TestRoot(const QJsonObject &root, const QString &attribute, const QString &file) const;
 
     template <typename T, typename std::enable_if<std::is_floating_point<T>::value>::type* = nullptr>
     void ReadDoubleValue(const QJsonObject &itemObject, const QString &attribute, T &value,
-                         const QString &defaultValue = QString());
+                         const QString &defaultValue = QString()) const;
     template <typename T, typename std::enable_if<std::is_enum<T>::value>::type* = nullptr>
     void ReadDoubleValue(const QJsonObject &itemObject, const QString &attribute, T &value,
-                         const QString &defaultValue = QString());
+                         const QString &defaultValue = QString()) const;
     template <typename T, typename std::enable_if<std::is_integral<T>::value>::type* = nullptr>
     void ReadDoubleValue(const QJsonObject &itemObject, const QString &attribute, T &value,
-                         const QString &defaultValue = QString());
+                         const QString &defaultValue = QString()) const;
     void ReadStringValue(const QJsonObject &itemObject, const QString &attribute, QString &value,
-                         const QString &defaultValue = QString());
+                         const QString &defaultValue = QString()) const;
     void ReadBooleanValue(const QJsonObject &itemObject, const QString &attribute, bool &value,
-                          const QString &defaultValue = QString());
+                          const QString &defaultValue = QString()) const;
     void ReadPointValue(const QJsonObject &itemObject, const QString &attribute, VPointF &value);
     void ReadSplinePointValues(const QJsonObject &itemObject, const QString &attribute, QVector<VSplinePoint> &points);
     void ReadSplinePointValue(const QJsonObject &itemObject, VSplinePoint &point);
     void ReadPieceNodeValue(const QJsonObject &itemObject, VPieceNode &node);
 
-    void QPointFromJson(const QJsonObject &itemObject, QPointF &point);
+    void QPointFromJson(const QJsonObject &itemObject, QPointF &point) const;
     void VPointFromJson(const QJsonObject &itemObject, VPointF &point);
     void QLineFromJson(const QJsonObject &itemObject, QLineF &line);
-    void SAPointFromJson(const QJsonObject &itemObject, VSAPoint &point);
+    void SAPointFromJson(const QJsonObject &itemObject, VSAPoint &point) const;
+    void RawSAPointFromJson(const QJsonObject &itemObject, VRawSAPoint &point) const;
     void SplineFromJson(const QJsonObject &itemObject, QSharedPointer<VContainer> &data);
     void SplinePathFromJson(const QJsonObject &itemObject, QSharedPointer<VContainer> &data);
 

src/test/ValentinaTest/share/smart_pattern_#112/input.json

@@ -0,0 +1,232 @@
+{
+    "vector": [
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -3124.2446685548284,
+            "y": -340.15748031496076
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -3111.699943251791,
+            "y": -396.7401714170824
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2725.3596865816003,
+            "y": -585.8267716535435
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2687.564410991049,
+            "y": -585.8267716535435
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2677.58560358191,
+            "y": -569.3428170188263
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2665.1502732124804,
+            "y": -552.0412529412208
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2654.7385639979766,
+            "y": -539.3532784199779
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2642.6534846020877,
+            "y": -526.5369475528651
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2629.0304140300964,
+            "y": -514.3953398593414
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2621.6288162143724,
+            "y": -508.90682548803926
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2617.633216578171,
+            "y": -506.2259849672243
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2607.5875815658464,
+            "y": -500.78291850199804
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2589.3518167947404,
+            "y": -492.6769341780546
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2562.160275286112,
+            "y": -482.74399225847844
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2536.9822947561124,
+            "y": -474.79665668016196
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2527.256410822591,
+            "y": -472.0553685667312
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2506.5962179242733,
+            "y": -340.15748031496076
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2515.110032578323,
+            "y": -335.7555078847252
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2535.9026816577343,
+            "y": -327.4893541781814
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2559.9139093453923,
+            "y": -319.92499126438355
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2585.699887733156,
+            "y": -313.12513181892416
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2624.7774917122233,
+            "y": -304.38080998706323
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2669.6720177906936,
+            "y": -296.12066401328417
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2698.5135894968607,
+            "y": -291.6966931721503
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2733.7651077284,
+            "y": -288.0502381685658
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2778.001039243382,
+            "y": -285.2249501336674
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2830.958905626066,
+            "y": -283.6151470999638
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2883.9661070936895,
+            "y": -283.5584406781999
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2901.245682896105,
+            "y": -284.5648866073816
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2928.8761792613104,
+            "y": -287.3856894036893
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2964.3753054127446,
+            "y": -292.55631940653257
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -2991.658167915314,
+            "y": -297.4313269801869
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -3042.8109922236317,
+            "y": -308.3088184858541
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -3067.2435220244433,
+            "y": -314.8760955596215
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -3083.7898789348988,
+            "y": -320.39818087512595
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -3100.269407664129,
+            "y": -327.1484210254447
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -3116.4133322750586,
+            "y": -335.3579733766769
+        },
+        {
+            "loopPoint": false,
+            "type": "VRawSAPoint",
+            "x": -3124.2446685548284,
+            "y": -340.15748031496076
+        }
+    ]
+}

src/test/ValentinaTest/share/smart_pattern_#112/output.json

@@ -0,0 +1,194 @@
+{
+    "vector": [
+        {
+            "type": "QPointF",
+            "x": -3124.2446685548284,
+            "y": -340.15748031496076
+        },
+        {
+            "type": "QPointF",
+            "x": -3111.699943251791,
+            "y": -396.7401714170824
+        },
+        {
+            "type": "QPointF",
+            "x": -2725.3596865816003,
+            "y": -585.8267716535435
+        },
+        {
+            "type": "QPointF",
+            "x": -2687.564410991049,
+            "y": -585.8267716535435
+        },
+        {
+            "type": "QPointF",
+            "x": -2677.58560358191,
+            "y": -569.3428170188263
+        },
+        {
+            "type": "QPointF",
+            "x": -2665.1502732124804,
+            "y": -552.0412529412208
+        },
+        {
+            "type": "QPointF",
+            "x": -2654.7385639979766,
+            "y": -539.3532784199779
+        },
+        {
+            "type": "QPointF",
+            "x": -2642.6534846020877,
+            "y": -526.5369475528651
+        },
+        {
+            "type": "QPointF",
+            "x": -2629.0304140300964,
+            "y": -514.3953398593414
+        },
+        {
+            "type": "QPointF",
+            "x": -2621.6288162143724,
+            "y": -508.90682548803926
+        },
+        {
+            "type": "QPointF",
+            "x": -2617.633216578171,
+            "y": -506.2259849672243
+        },
+        {
+            "type": "QPointF",
+            "x": -2607.5875815658464,
+            "y": -500.78291850199804
+        },
+        {
+            "type": "QPointF",
+            "x": -2589.3518167947404,
+            "y": -492.6769341780546
+        },
+        {
+            "type": "QPointF",
+            "x": -2562.160275286112,
+            "y": -482.74399225847844
+        },
+        {
+            "type": "QPointF",
+            "x": -2536.9822947561124,
+            "y": -474.79665668016196
+        },
+        {
+            "type": "QPointF",
+            "x": -2527.256410822591,
+            "y": -472.0553685667312
+        },
+        {
+            "type": "QPointF",
+            "x": -2506.5962179242733,
+            "y": -340.15748031496076
+        },
+        {
+            "type": "QPointF",
+            "x": -2515.110032578323,
+            "y": -335.7555078847252
+        },
+        {
+            "type": "QPointF",
+            "x": -2535.9026816577343,
+            "y": -327.4893541781814
+        },
+        {
+            "type": "QPointF",
+            "x": -2559.9139093453923,
+            "y": -319.92499126438355
+        },
+        {
+            "type": "QPointF",
+            "x": -2585.699887733156,
+            "y": -313.12513181892416
+        },
+        {
+            "type": "QPointF",
+            "x": -2624.7774917122233,
+            "y": -304.38080998706323
+        },
+        {
+            "type": "QPointF",
+            "x": -2669.6720177906936,
+            "y": -296.12066401328417
+        },
+        {
+            "type": "QPointF",
+            "x": -2698.5135894968607,
+            "y": -291.6966931721503
+        },
+        {
+            "type": "QPointF",
+            "x": -2733.7651077284,
+            "y": -288.0502381685658
+        },
+        {
+            "type": "QPointF",
+            "x": -2778.001039243382,
+            "y": -285.2249501336674
+        },
+        {
+            "type": "QPointF",
+            "x": -2830.958905626066,
+            "y": -283.6151470999638
+        },
+        {
+            "type": "QPointF",
+            "x": -2883.9661070936895,
+            "y": -283.5584406781999
+        },
+        {
+            "type": "QPointF",
+            "x": -2901.245682896105,
+            "y": -284.5648866073816
+        },
+        {
+            "type": "QPointF",
+            "x": -2928.8761792613104,
+            "y": -287.3856894036893
+        },
+        {
+            "type": "QPointF",
+            "x": -2964.3753054127446,
+            "y": -292.55631940653257
+        },
+        {
+            "type": "QPointF",
+            "x": -2991.658167915314,
+            "y": -297.4313269801869
+        },
+        {
+            "type": "QPointF",
+            "x": -3042.8109922236317,
+            "y": -308.3088184858541
+        },
+        {
+            "type": "QPointF",
+            "x": -3067.2435220244433,
+            "y": -314.8760955596215
+        },
+        {
+            "type": "QPointF",
+            "x": -3083.7898789348988,
+            "y": -320.39818087512595
+        },
+        {
+            "type": "QPointF",
+            "x": -3100.269407664129,
+            "y": -327.1484210254447
+        },
+        {
+            "type": "QPointF",
+            "x": -3116.4133322750586,
+            "y": -335.3579733766769
+        },
+        {
+            "type": "QPointF",
+            "x": -3124.2446685548284,
+            "y": -340.15748031496076
+        }
+    ]
+}

src/test/ValentinaTest/share/test_data.qrc

@@ -133,5 +133,7 @@
         <file>Issue_548_case2/output.json</file>
         <file>Issue_548_case3/input.json</file>
         <file>Issue_548_case3/output.json</file>
+        <file>smart_pattern_#112/input.json</file>
+        <file>smart_pattern_#112/output.json</file>
     </qresource>
 </RCC>

src/test/ValentinaTest/tst_vabstractpiece.cpp

@@ -28,6 +28,7 @@
 
 #include "tst_vabstractpiece.h"
 #include "../vlayout/vabstractpiece.h"
+#include "../vlayout/vrawsapoint.h"
 
 #include <QPointF>
 #include <QVector>
@@ -371,6 +372,39 @@ void TST_VAbstractPiece::SumTrapezoids() const
     Case5();
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void TST_VAbstractPiece::RawPathRemoveLoop_data() const
+{
+    QTest::addColumn<QVector<VRawSAPoint>>("path");
+    QTest::addColumn<QVector<QPointF>>("expect");
+
+    auto ASSERT_TEST_CASE = [this](const char *title, const QString &input, const QString &output)
+    {
+        QVector<VRawSAPoint> inputPoints;
+        AbstractTest::VectorFromJson(input, inputPoints);
+
+        QVector<QPointF> outputPoints;
+        AbstractTest::VectorFromJson(output, outputPoints);
+
+        QTest::newRow(title) << inputPoints << outputPoints;
+    };
+
+    // See file src/app/share/collection/bugs/smart_pattern_#112.val (private collection)
+    ASSERT_TEST_CASE("Loop intersection",
+                     QStringLiteral("://smart_pattern_#112/input.json"),
+                     QStringLiteral("://smart_pattern_#112/output.json"));
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void TST_VAbstractPiece::RawPathRemoveLoop() const
+{
+    QFETCH(QVector<VRawSAPoint>, path);
+    QFETCH(QVector<QPointF>, expect);
+
+    QVector<QPointF> res = VAbstractPiece::CheckLoops(path);
+    Comparison(res, expect);
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void TST_VAbstractPiece::PathRemoveLoop_data() const
 {
@@ -417,11 +451,6 @@ void TST_VAbstractPiece::PathRemoveLoop_data() const
     res << QPointF(20, 10);
     QTest::newRow("One loop, closed a path (four unique points)") << path << res;
 
-    path.removeLast();
-    res.removeLast();
-
-    QTest::newRow("One loop, unclosed a path (four unique points)") << path << res;
-
     path.clear();
     path << QPointF(20, 10);
     path << QPointF(20, 20);
@@ -438,11 +467,6 @@ void TST_VAbstractPiece::PathRemoveLoop_data() const
     res << QPointF(20, 10);
     QTest::newRow("Two loops, closed a path (six unique points)") << path << res;
 
-    path.removeLast();
-    res.removeLast();
-
-    QTest::newRow("Two loops, unclosed a path (six unique points)") << path << res;
-
     path.clear();
     path << QPointF(20, 10);
     path << QPointF(20, 20);
@@ -459,10 +483,6 @@ void TST_VAbstractPiece::PathRemoveLoop_data() const
     res << QPointF(20, 10);
     QTest::newRow("One loop, the first loop, closed a path (six unique points)") << path << res;
 
-    path.removeLast();
-    res.removeLast();
-    QTest::newRow("One loop, the first loop, unclosed a path (six unique points)") << path << res;
-
     path.clear();
     path << QPointF(20, 10);
     path << QPointF(20, 20);

src/test/ValentinaTest/tst_vabstractpiece.h

@@ -45,6 +45,8 @@ private slots:
     void LayoutAllowanceRemoveLoop_data();
     void LayoutAllowanceRemoveLoop() const;
     void SumTrapezoids() const;
+    void RawPathRemoveLoop_data() const;
+    void RawPathRemoveLoop() const;
     void PathRemoveLoop_data() const;
     void PathRemoveLoop() const;
     void PathLoopsCase_data() const;