From 0536b42a7c457dbf657b248968691f7f2f82a02f Mon Sep 17 00:00:00 2001
From: Roman Telezhynskyi <kroluku@gmail.com>
Date: Tue, 10 Sep 2019 13:17:06 +0300
Subject: [PATCH] Fix regression in angle type By Intersection.

--HG--
branch : develop
---
 .../collection/bugs/Issue_#923_test7.val      | 152 ++++++
 src/libs/vlayout/vabstractpiece.cpp           |   9 +-
 .../share/Issue_923_test7_1/input.json        | 481 ++++++++++++++++++
 .../share/Issue_923_test7_1/output.json       | 149 ++++++
 .../share/Issue_923_test7_2/input.json        | 481 ++++++++++++++++++
 .../share/Issue_923_test7_2/output.json       | 149 ++++++
 .../share/Issue_923_test7_3/input.json        | 481 ++++++++++++++++++
 .../share/Issue_923_test7_3/output.json       | 149 ++++++
 src/test/ValentinaTest/share/test_data.qrc    |   6 +
 src/test/ValentinaTest/tst_vabstractpiece.cpp |  18 +
 10 files changed, 2074 insertions(+), 1 deletion(-)
 create mode 100644 src/app/share/collection/bugs/Issue_#923_test7.val
 create mode 100644 src/test/ValentinaTest/share/Issue_923_test7_1/input.json
 create mode 100644 src/test/ValentinaTest/share/Issue_923_test7_1/output.json
 create mode 100644 src/test/ValentinaTest/share/Issue_923_test7_2/input.json
 create mode 100644 src/test/ValentinaTest/share/Issue_923_test7_2/output.json
 create mode 100644 src/test/ValentinaTest/share/Issue_923_test7_3/input.json
 create mode 100644 src/test/ValentinaTest/share/Issue_923_test7_3/output.json

diff --git a/src/app/share/collection/bugs/Issue_#923_test7.val b/src/app/share/collection/bugs/Issue_#923_test7.val
new file mode 100644
index 000000000..0c2553fd2
--- /dev/null
+++ b/src/app/share/collection/bugs/Issue_#923_test7.val
@@ -0,0 +1,152 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<pattern>
+    <!--Pattern created with Valentina v0.7.0.0a (https://valentinaproject.bitbucket.io/).-->
+    <version>0.8.5</version>
+    <unit>cm</unit>
+    <description/>
+    <notes/>
+    <patternName>Блуза</patternName>
+    <patternNumber>№14</patternNumber>
+    <company/>
+    <patternLabel dateFormat="MM-dd-yyyy" timeFormat="hh:mm:ss">
+        <line alignment="4" bold="true" italic="false" sfIncrement="4" text="%author%"/>
+        <line alignment="4" bold="false" italic="false" sfIncrement="2" text="%patternName%"/>
+        <line alignment="4" bold="false" italic="false" sfIncrement="0" text="Размер 28"/>
+        <line alignment="4" bold="false" italic="false" sfIncrement="0" text="Рост 110"/>
+        <line alignment="4" bold="false" italic="false" sfIncrement="0" text="%patternNumber%"/>
+    </patternLabel>
+    <measurements>Issue_#923.vit</measurements>
+    <increments>
+        <increment description="Прибавка на уработку." formula="0.3" name="#Пур"/>
+        <increment description="" formula="1.6" name="#М"/>
+        <increment description="Плечевая вытачка" formula="1.2" name="#Пв"/>
+        <increment description="Припуск на посадку." formula="0.3" name="#Ппос"/>
+        <increment description="Баланс платья. Он изменяется по размерам на 0.2" formula="4.3" name="#б"/>
+        <increment description="" formula="0.4" name="#Пур_1"/>
+        <increment description="" formula="0.7" name="#Пур_2"/>
+        <increment description="" formula="0.5" name="#Пур_3"/>
+        <increment description="Раствор вытачки" formula="3" name="#Рв"/>
+    </increments>
+    <previewCalculations>
+        <increment description="Прибавка на свободное облегание по груди." formula="8.5" name="#Пг_1"/>
+        <increment description="Ширина платья по линии  груди. Шиг равна измерению полуобхвата груди третьему СгІІІ плюс прибавка на сободное  облегание по груди Пг" formula="@СгІІІ+#Пг_1" name="#Шиг_1"/>
+        <increment description="Ширина спинки Шсп равна измерению ширины спины Шс плюс 1.4" formula="@Шс+1.4" name="#Шсп_1"/>
+        <increment description="Ширина полы на уровне груди Шгпол равна измерению ширины груди Шг плюс 1.3" formula="@Шг+1.3" name="#Шгпол_1"/>
+        <increment description="Ширина проймы Шпр равна ширине платья по линии грди Шиг минус ширина спинки Шсп и ширина полы на уровне груди" formula="#Шиг_1-(#Шсп_1+#Шгпол_1)" name="#Шпр_1"/>
+    </previewCalculations>
+    <draw name="Спинка">
+        <calculation>
+            <point id="1" mx="0.132292" my="0.264583" name="А" type="single" x="-21.556" y="-0.234005"/>
+            <point angle="270" basePoint="1" id="2" length="@Дтс+#Пур" lineColor="blue" mx="0.132292" my="0.264583" name="Т" type="endLine" typeLine="hair"/>
+            <point firstPoint="2" id="3" length="#Пур" lineColor="blue" mx="0.309469" my="-0.732036" name="оз" secondPoint="1" type="alongLine" typeLine="none"/>
+            <point angle="0" basePoint="1" id="4" length="@Сш/3+1.3" lineColor="black" mx="0.170457" my="0.0928427" name="А1" type="endLine" typeLine="hair"/>
+            <point angle="90" basePoint="4" id="5" length="(0.15*@Сш)-0.4" lineColor="black" mx="-0.602755" my="-1.78694" name="А2" type="endLine" typeLine="hair"/>
+            <point firstPoint="5" id="6" length="1.5" lineColor="black" mx="-1.13677" my="-1.77626" name="А3" secondPoint="4" thirdPoint="1" type="bisector" typeLine="hair"/>
+            <spline color="blue" id="7" penStyle="hair" type="pathInteractive">
+                <pathPoint angle1="33.2366" angle2="213.237" length1="0" length2="0.217465" pSpline="5"/>
+                <pathPoint angle1="26.7192" angle2="206.719" length1="0.807377" length2="1.84187" pSpline="6"/>
+                <pathPoint angle1="180" angle2="0" length1="0" length2="0" pSpline="1"/>
+            </spline>
+            <point angle="0" basePoint="1" id="8" length="#Шсп_1" lineColor="black" mx="0.132292" my="0.264583" name="а" type="endLine" typeLine="hair"/>
+            <point c1Center="5" c1Radius="@Шп+#М+#Ппос" c2Center="3" c2Radius="@Впк" crossPoint="2" id="9" mx="0.132292" my="0.264583" name="П" type="pointOfIntersectionCircles"/>
+            <line firstPoint="5" id="10" lineColor="blue" secondPoint="9" typeLine="hair"/>
+            <point firstPoint="8" id="11" mx="0.132292" my="0.264583" name="П1" secondPoint="9" type="pointOfIntersection"/>
+            <line firstPoint="9" id="12" lineColor="black" secondPoint="11" typeLine="dashLine"/>
+            <point angle="270" basePoint="11" id="13" length="0.4*@СгІІІ+2.2" lineColor="black" mx="0.132292" my="0.264583" name="Г1" type="endLine" typeLine="hair"/>
+            <point firstPoint="2" id="14" mx="0.132292" my="0.208554" name="Г" secondPoint="13" type="pointOfIntersection"/>
+            <line firstPoint="13" id="15" lineColor="black" secondPoint="14" typeLine="hair"/>
+            <line firstPoint="8" id="16" lineColor="black" secondPoint="11" typeLine="hair"/>
+            <point firstPoint="13" id="17" length="6" lineColor="black" mx="0.132292" my="0.264583" name="П2" secondPoint="11" type="alongLine" typeLine="none"/>
+            <point angle="0" basePoint="13" id="18" length="#Шпр_1/2-1.4" lineColor="black" mx="0.132292" my="0.264583" name="Г2" type="endLine" typeLine="hair"/>
+            <point firstPoint="17" id="19" length="1.9" lineColor="black" mx="0.132292" my="0.264583" name="I" secondPoint="13" thirdPoint="18" type="bisector" typeLine="hair"/>
+            <spline color="blue" id="20" penStyle="hair" type="pathInteractive">
+                <pathPoint angle1="70.1645" angle2="250.164" length1="0" length2="3.11186" pSpline="9"/>
+                <pathPoint angle1="90" angle2="270" length1="2.15999" length2="1.47142" pSpline="17"/>
+                <pathPoint angle1="123.093" angle2="303.093" length1="1.05178" length2="1.37047" pSpline="19"/>
+                <pathPoint angle1="3.90346" angle2="183.903" length1="0.426519" length2="0" pSpline="18"/>
+            </spline>
+            <line firstPoint="1" id="48" lineColor="blue" secondPoint="14" typeLine="hair"/>
+            <line firstPoint="14" id="59" lineColor="black" secondPoint="18" typeLine="hair"/>
+            <point angle="270" basePoint="1" id="186" length="@Ди+#Пур_3" lineColor="black" mx="0.132292" my="0.264583" name="Н" type="endLine" typeLine="hair"/>
+            <point angle="0" basePoint="186" id="187" length="Line_Г1_Г+Line_Г1_Г2" lineColor="black" mx="0.132292" my="0.264583" name="Н1" type="endLine" typeLine="hair"/>
+            <line firstPoint="18" id="188" lineColor="black" secondPoint="187" typeLine="hair"/>
+            <point firstPoint="1" id="250" length="9" lineColor="black" mx="0.132292" my="0.264583" name="А4" secondPoint="14" type="alongLine" typeLine="none"/>
+            <point angle="0" basePoint="250" curve="20" id="360" lineColor="black" mx="0.132292" my="0.264583" name="А5" showLabel="true" type="curveIntersectAxis" typeLine="none"/>
+            <spline aScale="2.3" angle1="318.43" angle2="209.346" color="black" id="363" length1="1.00806" length2="1.763" penStyle="dotLine" point1="250" point4="360" type="simpleInteractive"/>
+        </calculation>
+        <modeling>
+            <point id="382" idObject="250" inUse="false" mx="0.132292" my="0.264583" showLabel="true" type="modeling"/>
+            <point id="383" idObject="1" inUse="false" mx="0.132292" my="0.264583" showLabel="true" type="modeling"/>
+            <spline id="384" idObject="7" inUse="false" type="modelingPath"/>
+            <point id="385" idObject="5" inUse="false" mx="-0.602755" my="-1.78694" showLabel="true" type="modeling"/>
+            <point id="386" idObject="9" inUse="false" mx="0.132292" my="0.264583" showLabel="true" type="modeling"/>
+            <spline id="387" idObject="20" inUse="false" type="modelingPath"/>
+            <point id="388" idObject="360" inUse="false" mx="0.132292" my="0.264583" showLabel="true" type="modeling"/>
+            <spline id="389" idObject="363" inUse="false" type="modelingSpline"/>
+            <point id="481" idObject="9" inUse="false" mx="0.132292" my="0.264583" showLabel="true" type="modeling"/>
+            <spline id="482" idObject="20" inUse="false" type="modelingPath"/>
+            <point id="483" idObject="360" inUse="false" mx="0.132292" my="0.264583" showLabel="true" type="modeling"/>
+            <spline id="484" idObject="363" inUse="false" type="modelingSpline"/>
+            <point id="485" idObject="250" inUse="false" mx="0.132292" my="0.264583" showLabel="true" type="modeling"/>
+            <point id="486" idObject="1" inUse="false" mx="0.132292" my="0.264583" showLabel="true" type="modeling"/>
+            <spline id="487" idObject="7" inUse="false" type="modelingPath"/>
+            <point id="488" idObject="5" inUse="false" mx="-0.602755" my="-1.78694" showLabel="true" type="modeling"/>
+            <point id="490" idObject="5" inUse="false" mx="-0.602755" my="-1.78694" showLabel="true" type="modeling"/>
+            <point id="491" idObject="9" inUse="false" mx="0.132292" my="0.264583" showLabel="true" type="modeling"/>
+            <spline id="492" idObject="20" inUse="false" type="modelingPath"/>
+            <point id="493" idObject="360" inUse="false" mx="0.132292" my="0.264583" showLabel="true" type="modeling"/>
+            <spline id="494" idObject="363" inUse="false" type="modelingSpline"/>
+            <point id="495" idObject="250" inUse="false" mx="0.132292" my="0.264583" showLabel="true" type="modeling"/>
+            <point id="496" idObject="1" inUse="false" mx="0.132292" my="0.264583" showLabel="true" type="modeling"/>
+            <spline id="497" idObject="7" inUse="false" type="modelingPath"/>
+        </modeling>
+        <details>
+            <detail forbidFlipping="false" forceFlipping="false" hideMainPath="false" id="390" mx="24.067" my="-56.4319" name="Test 7.1" seamAllowance="true" version="2" width="1">
+                <data annotation="" foldPosition="" fontSize="0" height="1" letter="" mx="0" my="0" onFold="false" orientation="" quantity="1" rotation="0" rotationWay="" tilt="" visible="false" width="1"/>
+                <patternInfo fontSize="0" height="1" mx="0" my="0" rotation="0" visible="false" width="1"/>
+                <grainline arrows="0" length="1" mx="0" my="0" rotation="90" visible="false"/>
+                <nodes>
+                    <node angle="1" idObject="386" passmark="false" passmarkAngle="intersection2Right" passmarkLine="two" type="NodePoint"/>
+                    <node idObject="387" reverse="0" type="NodeSplinePath"/>
+                    <node idObject="388" type="NodePoint"/>
+                    <node idObject="389" reverse="1" type="NodeSpline"/>
+                    <node after="0" angle="1" before="1" idObject="382" type="NodePoint"/>
+                    <node after="1" before="0" idObject="383" type="NodePoint"/>
+                    <node idObject="384" reverse="1" type="NodeSplinePath"/>
+                    <node idObject="385" type="NodePoint"/>
+                </nodes>
+            </detail>
+            <detail forbidFlipping="false" forceFlipping="false" hideMainPath="false" id="489" mx="44.307" my="-56.891" name="Test 7.2" seamAllowance="true" version="2" width="1">
+                <data annotation="" foldPosition="" fontSize="0" height="1" letter="" mx="0" my="0" onFold="false" orientation="" quantity="1" rotation="0" rotationWay="" tilt="" visible="false" width="1"/>
+                <patternInfo fontSize="0" height="1" mx="0" my="0" rotation="0" visible="false" width="1"/>
+                <grainline arrows="0" length="1" mx="0" my="0" rotation="90" visible="false"/>
+                <nodes>
+                    <node idObject="488" type="NodePoint"/>
+                    <node angle="1" idObject="481" passmark="false" passmarkAngle="intersection2Right" passmarkLine="two" type="NodePoint"/>
+                    <node idObject="482" reverse="0" type="NodeSplinePath"/>
+                    <node idObject="483" type="NodePoint"/>
+                    <node idObject="484" reverse="1" type="NodeSpline"/>
+                    <node after="0" angle="1" before="1" idObject="485" type="NodePoint"/>
+                    <node after="1" before="0" idObject="486" type="NodePoint"/>
+                    <node idObject="487" reverse="1" type="NodeSplinePath"/>
+                </nodes>
+            </detail>
+            <detail forbidFlipping="false" forceFlipping="false" hideMainPath="false" id="498" mx="62.1312" my="-57.1057" name="Test 7.3" seamAllowance="true" version="2" width="1">
+                <data annotation="" foldPosition="" fontSize="0" height="1" letter="" mx="0" my="0" onFold="false" orientation="" quantity="1" rotation="0" rotationWay="" tilt="" visible="false" width="1"/>
+                <patternInfo fontSize="0" height="1" mx="0" my="0" rotation="0" visible="false" width="1"/>
+                <grainline arrows="0" length="1" mx="0" my="0" rotation="90" visible="false"/>
+                <nodes>
+                    <node idObject="497" reverse="1" type="NodeSplinePath"/>
+                    <node idObject="490" type="NodePoint"/>
+                    <node angle="1" idObject="491" passmark="false" passmarkAngle="intersection2Right" passmarkLine="two" type="NodePoint"/>
+                    <node idObject="492" reverse="0" type="NodeSplinePath"/>
+                    <node idObject="493" type="NodePoint"/>
+                    <node idObject="494" reverse="1" type="NodeSpline"/>
+                    <node after="0" angle="1" before="1" idObject="495" type="NodePoint"/>
+                    <node after="1" before="0" idObject="496" type="NodePoint"/>
+                </nodes>
+            </detail>
+        </details>
+        <groups/>
+    </draw>
+</pattern>
diff --git a/src/libs/vlayout/vabstractpiece.cpp b/src/libs/vlayout/vabstractpiece.cpp
index 6a3170698..56d944189 100644
--- a/src/libs/vlayout/vabstractpiece.cpp
+++ b/src/libs/vlayout/vabstractpiece.cpp
@@ -239,7 +239,14 @@ QVector<QPointF> AngleByIntersection(const QVector<QPointF> &points, QPointF p1,
     else
     {// Because artificial loop can lead to wrong clipping we must rollback current seam allowance points
         bool success = false;
-        pointsIntr = VAbstractPiece::RollbackSeamAllowance(pointsIntr, edge2, &success);
+        QVector<QPointF> temp = pointsIntr;
+        temp.append(bigLine1.p2());
+        temp = VAbstractPiece::RollbackSeamAllowance(temp, edge2, &success);
+
+        if (success)
+        {
+            pointsIntr = temp;
+        }
 
         if (needRollback != nullptr)
         {
diff --git a/src/test/ValentinaTest/share/Issue_923_test7_1/input.json b/src/test/ValentinaTest/share/Issue_923_test7_1/input.json
new file mode 100644
index 000000000..f680ac53f
--- /dev/null
+++ b/src/test/ValentinaTest/share/Issue_923_test7_1/input.json
@@ -0,0 +1,481 @@
+{
+    "vector": [
+        {
+            "angle": 1,
+            "type": "VSAPoint",
+            "x": -231.11800695198497,
+            "y": 95.87915857519384
+        },
+        {
+            "angle": 1,
+            "type": "VSAPoint",
+            "x": -231.11800695198497,
+            "y": 95.87915857519384
+        },
+        {
+            "angle": 6,
+            "type": "VSAPoint",
+            "x": -238.40281543387266,
+            "y": 116.44191216638788
+        },
+        {
+            "angle": 6,
+            "type": "VSAPoint",
+            "x": -251.05490182747536,
+            "y": 155.85530707633535
+        },
+        {
+            "angle": 6,
+            "type": "VSAPoint",
+            "x": -261.5198582532174,
+            "y": 193.3982017541216
+        },
+        {
+            "angle": 6,
+            "type": "VSAPoint",
+            "x": -269.9242477292619,
+            "y": 229.27507897171068
+        },
+        {
+            "angle": 6,
+            "type": "VSAPoint",
+            "x": -276.39463327377155,
+            "y": 263.69042150106657
+        },
+        {
+            "angle": 6,
+            "type": "VSAPoint",
+            "x": -281.0575779049093,
+            "y": 296.8487121141533
+        },
+        {
+            "angle": 6,
+            "type": "VSAPoint",
+            "x": -284.03964464083833,
+            "y": 328.95443358293466
+        },
+        {
+            "type": "VSAPoint",
+            "x": -284.1473856336994,
+            "y": 331.31319685039375
+        },
+        {
+            "type": "VSAPoint",
+            "x": -284.1473856336994,
+            "y": 331.31319685039375
+        },
+        {
+            "type": "VSAPoint",
+            "x": -284.1473856336994,
+            "y": 331.31319685039375
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -285.5557999020539,
+            "y": 332.07367819388446
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -288.834524798698,
+            "y": 333.54602837322557
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -292.6510175119016,
+            "y": 334.960499310105
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -296.9869360245949,
+            "y": 336.3175974119747
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -304.3654176607361,
+            "y": 338.2537916174847
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -315.933705278224,
+            "y": 340.62982770058966
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -329.2495397864151,
+            "y": 342.78548777779133
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -344.1661850487516,
+            "y": 344.72482310870555
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -360.5369049286754,
+            "y": 346.45188495294803
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -378.2149632896285,
+            "y": 347.9707245701345
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -397.0536239950529,
+            "y": 349.2853932198809
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -416.9061509083906,
+            "y": 350.399942161803
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -437.6258078930837,
+            "y": 351.3184226555164
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+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -459.065858812574,
+            "y": 352.04488596063703
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -481.0795675303036,
+            "y": 352.5833833367806
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -503.5201979097145,
+            "y": 352.93796604356305
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -526.2410138142486,
+            "y": 353.1126853406
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -549.0952791073482,
+            "y": 353.1115924875072
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -571.936257652455,
+            "y": 352.93873874390056
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -594.617213313011,
+            "y": 352.5981753693958
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -616.9914099524583,
+            "y": 352.09395362360874
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -638.9121114342388,
+            "y": 351.430124766155
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -660.2325816217947,
+            "y": 350.61074005665057
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -680.8060843785678,
+            "y": 349.6398507547111
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -700.4858835680001,
+            "y": 348.52150811995256
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -719.1252430535337,
+            "y": 347.2597634119904
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -736.5774266986106,
+            "y": 345.8586678904407
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -752.6956983666726,
+            "y": 344.3222728149191
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -767.333321921162,
+            "y": 342.65462944504145
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -780.3435612255205,
+            "y": 340.8597890404234
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -791.5796801431904,
+            "y": 338.9418028606809
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -800.8949425376136,
+            "y": 336.90472216542963
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -806.4645048840825,
+            "y": 335.2976928037018
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -809.5439285608359,
+            "y": 334.19362962533444
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -812.0605990299634,
+            "y": 333.06207165162374
+        },
+        {
+            "angle": 6,
+            "saAfter": 37.795275590551185,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -813.9961742743959,
+            "y": 331.90352529002166
+        },
+        {
+            "angle": 1,
+            "saAfter": 0,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -814.7149606299213,
+            "y": 331.31319685039375
+        },
+        {
+            "angle": 1,
+            "saAfter": 0,
+            "saBefore": 37.795275590551185,
+            "type": "VSAPoint",
+            "x": -814.7149606299213,
+            "y": 331.31319685039375
+        },
+        {
+            "saAfter": 37.795275590551185,
+            "saBefore": 0,
+            "type": "VSAPoint",
+            "x": -814.7149606299213,
+            "y": -8.844283464566928
+        }
+    ]
+}
diff --git a/src/test/ValentinaTest/share/Issue_923_test7_3/output.json b/src/test/ValentinaTest/share/Issue_923_test7_3/output.json
new file mode 100644
index 000000000..1c74ea4b5
--- /dev/null
+++ b/src/test/ValentinaTest/share/Issue_923_test7_3/output.json
@@ -0,0 +1,149 @@
+{
+    "vector": [
+        {
+            "type": "QPointF",
+            "x": -814.7149606299213,
+            "y": -46.83844987562506
+        },
+        {
+            "type": "QPointF",
+            "x": -778.5027796006967,
+            "y": -50.55832953918108
+        },
+        {
+            "type": "QPointF",
+            "x": -737.9608911970817,
+            "y": -56.79017047839188
+        },
+        {
+            "type": "QPointF",
+            "x": -709.2737849361833,
+            "y": -62.54507114228375
+        },
+        {
+            "type": "QPointF",
+            "x": -681.3583296765719,
+            "y": -69.77242131730468
+        },
+        {
+            "type": "QPointF",
+            "x": -663.080059476596,
+            "y": -75.96966921296226
+        },
+        {
+            "type": "QPointF",
+            "x": -646.8510624753319,
+            "y": -83.05604358358234
+        },
+        {
+            "type": "QPointF",
+            "x": -631.5852394687809,
+            "y": -90.99511806183605
+        },
+        {
+            "type": "QPointF",
+            "x": -616.3280202339708,
+            "y": -100.59426715699185
+        },
+        {
+            "type": "QPointF",
+            "x": -594.0963839106636,
+            "y": -115.97215530775165
+        },
+        {
+            "type": "QPointF",
+            "x": -219.1132362274485,
+            "y": 59.76521424266423
+        },
+        {
+            "type": "QPointF",
+            "x": -196.65773024177236,
+            "y": 112.02910670072477
+        },
+        {
+            "type": "QPointF",
+            "x": -214.89666292622343,
+            "y": 166.89727659461178
+        },
+        {
+            "type": "QPointF",
+            "x": -224.9007219166651,
+            "y": 202.78670773496933
+        },
+        {
+            "type": "QPointF",
+            "x": -232.93434714099388,
+            "y": 237.08085683490162
+        },
+        {
+            "type": "QPointF",
+            "x": -239.0890371517,
+            "y": 269.81704595738483
+        },
+        {
+            "type": "QPointF",
+            "x": -243.49817442555994,
+            "y": 301.1705074811104
+        },
+        {
+            "type": "QPointF",
+            "x": -248.3168574229531,
+            "y": 354.919297434933
+        },
+        {
+            "type": "QPointF",
+            "x": -269.9238569102081,
+            "y": 366.58612044863963
+        },
+        {
+            "type": "QPointF",
+            "x": -286.16902160246076,
+            "y": 372.6172940694789
+        },
+        {
+            "type": "QPointF",
+            "x": -311.04178506989064,
+            "y": 378.1071805105328
+        },
+        {
+            "type": "QPointF",
+            "x": -358.1556709259087,
+            "y": 384.1720729374989
+        },
+        {
+            "type": "QPointF",
+            "x": -437.0178873589189,
+            "y": 389.1088088614001
+        },
+        {
+            "type": "QPointF",
+            "x": -550.0911721596755,
+            "y": 390.89374507300744
+        },
+        {
+            "type": "QPointF",
+            "x": -683.5941332112803,
+            "y": 387.332152895494
+        },
+        {
+            "type": "QPointF",
+            "x": -757.8761616208975,
+            "y": 381.7608312465323
+        },
+        {
+            "type": "QPointF",
+            "x": -799.0261371963916,
+            "y": 376.0668102876168
+        },
+        {
+            "type": "QPointF",
+            "x": -814.7149606299213,
+            "y": 371.920060042948
+        },
+        {
+            "type": "QPointF",
+            "x": -814.7149606299213,
+            "y": -46.83844987562506
+        }
+    ]
+}
diff --git a/src/test/ValentinaTest/share/test_data.qrc b/src/test/ValentinaTest/share/test_data.qrc
index 821c70c0b..81da5e5b0 100644
--- a/src/test/ValentinaTest/share/test_data.qrc
+++ b/src/test/ValentinaTest/share/test_data.qrc
@@ -101,5 +101,11 @@
         <file>Issue_924_Test_1/seamAllowance.json</file>
         <file>DP_6/input.json</file>
         <file>DP_6/output.json</file>
+        <file>Issue_923_test7_1/input.json</file>
+        <file>Issue_923_test7_1/output.json</file>
+        <file>Issue_923_test7_2/input.json</file>
+        <file>Issue_923_test7_2/output.json</file>
+        <file>Issue_923_test7_3/input.json</file>
+        <file>Issue_923_test7_3/output.json</file>
     </qresource>
 </RCC>
diff --git a/src/test/ValentinaTest/tst_vabstractpiece.cpp b/src/test/ValentinaTest/tst_vabstractpiece.cpp
index 21cf7a368..0462b30f5 100644
--- a/src/test/ValentinaTest/tst_vabstractpiece.cpp
+++ b/src/test/ValentinaTest/tst_vabstractpiece.cpp
@@ -226,6 +226,24 @@ void TST_VAbstractPiece::EquidistantRemoveLoop_data()
                      QStringLiteral("://Issue_923_test6_6/output.json"),
                      37.795275590551185 /*seam allowance width (1.0 cm)*/);
 
+    // See file src/app/share/collection/bugs/Issue_#923_test7.val
+    ASSERT_TEST_CASE("Issue 923. Test 7.1",
+                     QStringLiteral("://Issue_923_test7_1/input.json"),
+                     QStringLiteral("://Issue_923_test7_1/output.json"),
+                     37.795275590551185 /*seam allowance width (1.0 cm)*/);
+
+    // See file src/app/share/collection/bugs/Issue_#923_test7.val
+    ASSERT_TEST_CASE("Issue 923. Test 7.2",
+                     QStringLiteral("://Issue_923_test7_2/input.json"),
+                     QStringLiteral("://Issue_923_test7_2/output.json"),
+                     37.795275590551185 /*seam allowance width (1.0 cm)*/);
+
+    // See file src/app/share/collection/bugs/Issue_#923_test7.val
+    ASSERT_TEST_CASE("Issue 923. Test 7.3",
+                     QStringLiteral("://Issue_923_test7_3/input.json"),
+                     QStringLiteral("://Issue_923_test7_3/output.json"),
+                     37.795275590551185 /*seam allowance width (1.0 cm)*/);
+
     // See file src/app/share/collection/bugs/loop_by_intersection.val
     ASSERT_TEST_CASE("Loop for angle by intersection",
                      QStringLiteral("://loop_by_intersection/input.json"),