Class constructor does not take input parameters C++ (all attributes get the same value and the same value applies to all objects) - c++

Question

I created a class named Triangle that takes triangles as objects.
The attributes are the ID of the triangle (m_ID), the index of the three vertices (m_S1, m_S2, m_S3) and the index of the three adjacent triangles (m_T1, m_T2, m_T3).
I want to create a triangle object by passing input parameters in the constructor.
The parameters are passed by value, but the object is badly created. In fact, all three triangles I tried to create (triangle2, 3 and 4) have the same value for attributes. The value is -858993460 which looks like an address.
Even when I use the simplest input values (Triangle triangle4(1,1,1,1,1,1,1)), the attributes are not created correctly.
/*
Name: insert
Description: insert the new point and create 3 new triangles
*/
void insert(const int triangleIndex)
{
// Extract the Index of the new point
int newPointIndex = pointList.size();
// Create the line of the second new triangle
Triangle triangle2(triangleList.size() + 1, newPointIndex, triangleList[triangleIndex].getS3(), triangleList[triangleIndex].getS1(), triangleList[triangleIndex].getT2(), triangleList.size() + 2, triangleIndex);
// Create the line of the third new triangle
Triangle triangle3(triangleList.size() + 2, newPointIndex, triangleList[triangleIndex].getS1(), triangleList[triangleIndex].getS2(), triangleList[triangleIndex].getT3(), triangleIndex, triangleList.size() + 1);
// Test only
Triangle triangle4(1, 1, 1, 1, 1, 1, 1);
// Get the adjacent triangles of the base triangle
int T1 = triangleList[triangleIndex].getT1();
int T2 = triangleList[triangleIndex].getT2();
int T3 = triangleList[triangleIndex].getT3();
// Update the line of first new triangle
triangleList[triangleIndex].setS1(newPointIndex);
triangleList[triangleIndex].setT2(triangleList.size() + 1);
triangleList[triangleIndex].setT3(triangleList.size() + 2);
// Update the adjacent triangles
triangleList[T2].setT3(triangleList.size() + 1);
triangleList[T3].setT2(triangleList.size() + 2);
// Insert the new triangles in the triangulation
triangleList.push_back(triangle2);
triangleList.push_back(triangle3);
}
/*-----------------------------------------
Name: Triangle
Author: Michael Landry
Description: Implementation of class Triangle
Date: 2018-02-23
Version: 1.00
-------------------------------------------*/
#include "Triangle.h"
// Constructor with no parameter
Triangle::Triangle() : m_ID(0), m_S1(0), m_S2(0), m_S3(0), m_T1(0), m_T2(0), m_T3(0)
{
}
// Constructor with parameters
Triangle::Triangle(int p_ID, int p_S1, int p_S2, int p_S3, int p_T1, int p_T2, int p_T3) : m_ID(p_ID), m_S1(p_S1), m_S2(p_S2), m_S3(p_S3), m_T1(p_T1), m_T2(p_T2), m_T3(p_T3)
{
}
// Global setter
void Triangle::setTriangle(int p_ID, int p_S1, int p_S2, int p_S3, int p_T1, int p_T2, int p_T3)
{
m_ID = p_ID;
m_S1 = p_S1;
m_S2 = p_S2;
m_S3 = p_S3;
m_T1 = p_T1;
m_T2 = p_T2;
m_T3 = p_T3;
}
// Setter for each individual parameter
void Triangle::setID(int p_ID)
{
m_ID = p_ID;
}
void Triangle::setS1(int p_S1)
{
m_S1 = p_S1;
}
void Triangle::setS2(int p_S2)
{
m_S2 = p_S2;
}
void Triangle::setS3(int p_S3)
{
m_S3 = p_S3;
}
void Triangle::setT1(int p_T1)
{
m_T1 = p_T1;
}
void Triangle::setT2(int p_T2)
{
m_T2 = p_T2;
}
void Triangle::setT3(int p_T3)
{
m_T3 = p_T3;
}
// Getter for each individual parameter
int Triangle::getID() const
{
return m_ID;
}
int Triangle::getS1() const
{
return m_S1;
}
int Triangle::getS2() const
{
return m_S2;
}
int Triangle::getS3() const
{
return m_S3;
}
int Triangle::getT1() const
{
return m_T1;
}
int Triangle::getT2() const
{
return m_T2;
}
int Triangle::getT3() const
{
return m_T3;
}
/*-----------------------------------------
Name: Triangle
Author: Michael Landry
Description: Declaration of class Triangle
Date: 2018-02-23
Version: 1.00
-------------------------------------------*/
#ifndef TRIANGLE_H_
#define TRIANGLE_H_
class Triangle
{
public:
// Constructor with no parameter
Triangle::Triangle();
// Constructor with parameters
Triangle::Triangle(int, int, int, int, int, int, int);
// Setters
void Triangle::setTriangle(int p_ID, int p_S1, int p_S2, int p_S3, int p_T1, int p_T2, int p_T3);
void Triangle::setID(int p_ID);
void Triangle::setS1(int p_S1);
void Triangle::setS2(int p_S2);
void Triangle::setS3(int p_S3);
void Triangle::setT1(int p_T1);
void Triangle::setT2(int p_T1);
void Triangle::setT3(int p_T1);
// Getters
int Triangle::getID() const;
int Triangle::getS1() const;
int Triangle::getS2() const;
int Triangle::getS3() const;
int Triangle::getT1() const;
int Triangle::getT2() const;
int Triangle::getT3() const;
private:
// The ID of the triangle
int m_ID;
// The 3 vertices forming the triangle
int m_S1;
int m_S2;
int m_S3;
// The 3 adjacent triangles
int m_T1;
int m_T2;
int m_T3;
};
#endif /* TRIANGLE_H_ */