3D 형상의 2D Projection 외곽형상 포인트 추출

3D 형상의 2D Projection 외곽형상 포인트 추출 예제

조회 중인 3D 모델의 외곽형상 포인트를 추출

Projection2DVO projection = Connector.Get2DProjectionVertex(
    60          /* Scale */
    , false     /* True(전체), False(단일폐곡선) */
    , 1         /* 1(Default) */
  );

if (projection == null) return;

float area = projection.Area;
int vertexCount = projection.VertexCount;
BoundBoxVO vertexBbox = projection.VertexBoundBox;
BoundBoxVO nodeBbox = projection.NodeBoundBox;
string matrix = projection.Matrix;
string points = projection.Points;
string vertex = projection.Vertex;
string pathGeometry = projection.PathGeometryString;

ISO+ 방향 모델 외곽 포인트 추출 결과

Figure 1 : ISO+ 방향 모델 외곽 포인트

Z+ 방향 모델 외곽 포인트 추출 결과

Figure 2 : Z+ 방향 모델 외곽 포인트

PathGeometry는 WPF 클래스입니다. 2D Projection 외곽선 추출 결과를 WPF 컨트롤을 활용하여 아래와 같이 렌더링 할 수 있습니다.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace Projection2DWpfDrawControl
{
    public partial class DrawControl : UserControl
    {
        public DrawControl()
        {
            InitializeComponent();
        }

        public void DrawPathGeometry(string PATHDATA)
        {
            MyCanvas.Children.Clear();

            if (String.IsNullOrEmpty(PATHDATA) == true) return;

            Path myPath = new Path();
            myPath.Stroke = Brushes.Red;
            myPath.StrokeThickness = 1;
            myPath.Data = Geometry.Parse(PATHDATA);

            MyCanvas.Children.Add(myPath);
        }

        public void DrawPoints(string Point)
        {
            MyCanvas.Children.Clear();

            if (String.IsNullOrEmpty(Point) == true) return;

            string[] Points = Point.Split(new char[] { ',' });
            string PathDataByPoints = String.Empty;

            int minX = 1000;
            int minY = 1000;

            for (int i = 0; i < Points.Length; i++)
            {
                if (i % 2 != 0) continue;

                int nX = Convert.ToInt32(Points[i]);
                int nY = Convert.ToInt32(Points[i + 1]);

                minX = Math.Min(minX, nX);
                minY = Math.Min(minY, nY);

                if (i == 0)
                {
                    PathDataByPoints = string.Format("M{0},{1}", Points[i], Points[i + 1]);
                }
                else if (i < Points.Length - 3)
                {
                    PathDataByPoints += string.Format("L{0},{1}", Points[i], Points[i + 1]);
                }
                else
                {
                    PathDataByPoints += string.Format("L{0},{1}z", Points[i], Points[i + 1]);
                }
            }

            int nMargineX = 0;
            int nMargineY = 0;

            TranslateTransform translateTransform = new TranslateTransform(0 - minX + nMargineX, 0 - minY + nMargineY);

            Path myPath = new Path();
            myPath.Stroke = Brushes.Red;
            myPath.StrokeThickness = 1;
            myPath.Data = Geometry.Parse(PathDataByPoints);
            myPath.RenderTransform = translateTransform;

            MyCanvas.Children.Clear();
            MyCanvas.Children.Add(myPath);
        }
    }
}

<UserControl x:Class="Projection2DWpfDrawControl.DrawControl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:local="clr-namespace:Projection2DWpfDrawControl"
             mc:Ignorable="d"
             d:DesignHeight="450" d:DesignWidth="800">
    <Canvas Name="MyCanvas">
    </Canvas>
</UserControl>

Last modified: 04 3월 2024