SurfacicSampling.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Core/Types.h"
#include "Geo/GeoEnum.h"
#include "Geo/GeoPoint.h"
#include "Math/Point.h"
 
namespace UE::CADKernel
{
 
struct FSurfacicSampling
{
    bool bWithNormals = false;
    TArray<FVector2d> Points2D;
    TArray<FVector> Points3D;
    TArray<FVector3f> Normals;
 
    int32 Count()
    {
        return Points3D.Num();
    }
 
    void SetNum(int32 Number)
    {
        Points2D.SetNum(Number);
        Points3D.SetNum(Number);
        if (bWithNormals)
        {
            Normals.SetNum(Number);
        }
    }
 
    void Reserve(int32 Number)
    {
        Points2D.Empty(Number);
        Points3D.Empty(Number);
        if (bWithNormals)
        {
            Normals.Empty(Number);
        }
    }
 
    void NormalizeNormals()
    {
        for (FVector3f& Normal : Normals)
        {
            Normal.Normalize();
        }
    }
 
    void Set2DCoordinates(const FCoordinateGrid& Coordinates)
    {
        Reserve(Coordinates.Count());
        for (double VCoord : Coordinates[EIso::IsoV])
        {
            for (double UCoord : Coordinates[EIso::IsoU])
            {
                Points2D.Emplace(UCoord, VCoord);
            }
        }
    }
};
 
} // ns UE::CADKernel