#3806 Measurement. Display text label at last clicked position

ApplicationCode/ProjectDataModel/Measurement/RimMeasurement.cpp

@@ -90,6 +90,44 @@ std::vector<cvf::Vec3d> RimMeasurement::pointsInDomain() const
     return m_pointsInDomain;
 }
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+QString RimMeasurement::label() const
+{
+    auto lengths = calculateLenghts();
+    return QString("Total length: \t%1\nLast length: \t%2\nTotal horizontal length: \t%3\nLast horizontal length: \t%4")
+        .arg(lengths.totalLength)
+        .arg(lengths.lastSegmentLength)
+        .arg(lengths.totalHorizontalLength)
+        .arg(lengths.lastSegmentHorisontalLength);
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+RimMeasurement::Lengths RimMeasurement::calculateLenghts() const
+{
+    Lengths lengths;
+
+    for (size_t p = 1; p < m_pointsInDomain.size(); p++)
+    {
+        const auto& p0 = m_pointsInDomain[p - 1];
+        const auto& p1 = m_pointsInDomain[p];
+
+        lengths.lastSegmentLength = (p1 - p0).length();
+
+        const auto& p1_horiz = cvf::Vec3d(p1.x(), p1.y(), p0.z());
+
+        lengths.lastSegmentHorisontalLength = (p1_horiz - p0).length();
+
+        lengths.totalLength += lengths.lastSegmentLength;
+        lengths.totalHorizontalLength += lengths.lastSegmentHorisontalLength;
+    }
+
+    return lengths;
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------

ApplicationCode/ProjectDataModel/Measurement/RimMeasurement.h

@@ -33,6 +33,23 @@ class RimMeasurement : public caf::PdmObject
     using Vec3d = cvf::Vec3d;
 
 public:
+    class Lengths
+    {
+    public:
+        Lengths()
+            : totalLength(0),
+            lastSegmentLength(0),
+            totalHorizontalLength(0),
+            lastSegmentHorisontalLength(0),
+            area(0) {}
+
+        double totalLength;
+        double lastSegmentLength;
+        double totalHorizontalLength;
+        double lastSegmentHorisontalLength;
+        double area;
+    };
+
     RimMeasurement();
     ~RimMeasurement() override;
 
@@ -42,7 +59,12 @@ public:
     void                addPointInDomain(const Vec3d& pointInDomain);
     std::vector<Vec3d>  pointsInDomain() const;
 
+    QString             label() const;
+
 private:
+    Lengths             calculateLenghts() const;
+
+
     void                updateView() const;
 
     bool                m_isInMeasurementMode;