3D 형상의 2D Projection 외곽형상 포인트 추출

3D 형상의 2D Projection 외곽형상 포인트를 추출하는 Plugin API 예제입니다.

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3D 모델 외곽형상 포인트 추출

조회 중인 3D 모델의 2D Projection 외곽형상 포인트를 추출합니다.

Projection2DVO projection = Connector.Get2DProjectionVertex(
    60,     // Scale
    false,  // true: 전체 / false: 단일 폐곡선
    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;

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추출 결과 예시

ISO+ 방향 모델 외곽 포인트

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Z+ 방향 모델 외곽 포인트

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WPF를 이용한 외곽선 렌더링

PathGeometry는 WPF 클래스이며,
2D Projection 외곽선 추출 결과를 WPF 컨트롤을 사용해 렌더링할 수 있습니다.

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WPF 코드 (C#)

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
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)) return;

            Path path = new Path
            {
                Stroke = Brushes.Red,
                StrokeThickness = 1,
                Data = Geometry.Parse(pathData)
            };

            MyCanvas.Children.Add(path);
        }

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

            if (string.IsNullOrEmpty(pointData)) return;

            string[] points = pointData.Split(',');
            string pathData = string.Empty;

            int minX = int.MaxValue;
            int minY = int.MaxValue;

            for (int i = 0; i < points.Length; i += 2)
            {
                int x = Convert.ToInt32(points[i]);
                int y = Convert.ToInt32(points[i + 1]);

                minX = Math.Min(minX, x);
                minY = Math.Min(minY, y);

                if (i == 0)
                    pathData = $"M{x},{y}";
                else if (i < points.Length - 2)
                    pathData += $" L{x},{y}";
                else
                    pathData += $" L{x},{y} Z";
            }

            TranslateTransform transform = new TranslateTransform(-minX, -minY);

            Path path = new Path
            {
                Stroke = Brushes.Red,
                StrokeThickness = 1,
                Data = Geometry.Parse(pathData),
                RenderTransform = transform
            };

            MyCanvas.Children.Add(path);
        }
    }
}

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WPF XAML

<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"
             mc:Ignorable="d"
             d:DesignHeight="450"
             d:DesignWidth="800">

    <Canvas x:Name="MyCanvas" />
</UserControl>