Converting a List defined in a Struct into Int[ , ]

Question

Hello,

 

I am struggling a bit with a list which is defined in a particular way. This is the situation: 

I have a Struct called Edge that is formed by two Points defined in the struct Point in the code (below).

My input list is called "EDGE". Using that list I would like to produce two outputs:

1. List<double[]> POINTS : contains the non-repeated points that appear in the list "EDGE".
2. Int[,] edgeIndices: represents the same thing as the input list "EDGE" but instead of the points, I want the indices of such points as defined in the list "POINTS" previously created.

Can you please help me on this?

Please note that it is very important to use a List<double[]> and a Int[,] and not other types.

 

Many thanks! 

 

 

 

using System;

using System.Collections.Generic;

namespace Test

{

struct Point

{

public readonly double X;

public readonly double Y;

public Point(double x, double y)

{

X = x;

Y = y;

}

}

struct Edge

{

public Point First;

public Point Second;

public Edge(Point First, Point Second)

{

this.First = First;

this.Second = Second;

}

}

class Program

{

static void Main(string[] args)

{

///////////////////////////INPUT////////////////////////////////////

var EDGES = new List<Edge>();

EDGES.Add(new Edge(new Point(5, 50), new Point(20, 100))); //EDGE 01

EDGES.Add(new Edge(new Point(20, 100), new Point(30, 50))); //EDGE 12

EDGES.Add(new Edge(new Point(30, 50), new Point(10, 0))); //EDGE 23

EDGES.Add(new Edge(new Point(5, 50), new Point(30, 50))); //EDGE 02

EDGES.Add(new Edge(new Point(5, 50), new Point(10, 0))); //EDGE 03

EDGES.Add(new Edge(new Point(20, 100), new Point(80, 100))); //EDGE 14

EDGES.Add(new Edge(new Point(10, 0), new Point(80, 100))); //EDGE 34

///////////////////////EXPECTED OUTPUTS/////////////////////////////

///

///POINTS (EXPECTED) as List<double[]>

///Index X Y

/// 0 5 50

/// 1 20 100

/// 2 30 50

/// 3 10 0

/// 4 80 100

///

///MULTIARRAY (EXPECTED)

///static int[,] edgeIndices =

/// {

/// {0, 1}, {1, 2}, {2, 3}, {0, 2},

/// {0, 3}, {1, 4}, {3, 4}

/// };

}

}

}