CODEWITHSUNDEEP
c#linq3ddirectx
jhyap
jhyap

Reputation: 3837

How to find the peak 3D coordinate inside a list of 3D coordinates using LINQ?

using Microsoft.DirectX.Direct3D;

struct Voxel
{
    public Vector3 p

    public Voxel(float _x, float _y, float _z)
    {
        p = new Vector3(_x, _y, _z);
    }
}

List<Voxel> myDataList = new List<Voxel>();

After some add data method, then i finally get myDataList to have something like below:

myDataList[0] - { X: 164 , Y: 59 , Z: 120 }
myDataList[1] - { X: 146 , Y: 63 , Z: 120 }
myDataList[2] - { X: 192 , Y: 59 , Z: 120 }
myDataList[3] - { X: 196 , Y: 79 , Z: 120 } //peak coordinate is here
myDataList[4] - { X: 110 , Y: 55 , Z: 120 }

In the above example, myDataList[3] is the peak coordinate where it has the highest Y value, which is 79.

My question is, how can I get to identify that myDataList[3] is the peak coordinate where it contain the highest Y value?

I know I can do something like below to get the max Y value

float maxY = myDataList.Max(y => y.p.Y); //output = 79

But what I want is the 3D coordinate (X, Y, Z) instead of just knowing the maxY

*Do not order the list by descending w.r.t Y value and .First(), because the order of myDataList does matter in my next proceeding step.

Upvotes: 3

Views: 156

Answers (1)

Damith
Damith

Reputation: 63065

since you already have maxY you can use that value to find max Voxel like below

var maxVoxel = myDataList.FirstOrDefault(x=>x.p.Y ==maxY);

Upvotes: 2

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