STEP文件读取与显示代码,CSharp代码库,德仔网

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【CSharp】 STEP文件读取与显示
作者:AnyCAD / 发布于2014/4/8/ 1026
基于AnyCAD .Net 三维图形平台，使用C#开发。支持读取STEP文件模型的名字，根据STEP文件的结构以树形显示内容，支持三维显示模型内容。支持把STEP导出为STL文件。
--基于AnyCAD.Net三维图形平台，使用C#开发。支持读取STEP文件模型的名字，根据STEP文件的结构以树形显示内容，支持三维显示模型内容。支持把STEP导出为STL文件。



MainForm.cs



?using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using AnyCAD.Platform;
namespace StpViewer
{
  public partial class MainForm : Form
  {
    private AnyCAD.Presentation.RenderWindow3d renderView = null;

    public MainForm()
    {
      InitializeComponent();

      this.renderView = new AnyCAD.Presentation.RenderWindow3d();
      this.renderView.Location = new System.Drawing.Point(0, 0);
      this.renderView.Size = this.Size;
      this.renderView.TabIndex = 1;
      this.splitContainer1.Panel2.Controls.Add(this.renderView);

      this.renderView.MouseClick += new System.Windows.Forms.MouseEventHandler(this.OnRenderWindow_MouseClick);
    }

    private void OnRenderWindow_MouseClick(object sender, MouseEventArgs e)
    {
    }

    private void MainForm_Resize(object sender, EventArgs e)
    {
      if (renderView != null)
        renderView.Size = this.splitContainer1.Panel2.Size;
    }

    private void MainForm_Load(object sender, EventArgs e)
    {
      this.renderView.View3d.ShowCoordinateAxis(true);
      renderView.ExecuteCommand("ShadeWithEdgeMode");
      this.renderView.RequestDraw();
    }

    private void openToolStripMenuItem_Click(object sender, EventArgs e)
    {
      OpenFileDialog dlg = new OpenFileDialog();
      dlg.Filter = "STEP File(*.stp;*.step)|*.stp;*.step|All Files(*.*)|*.*";

      if (DialogResult.OK == dlg.ShowDialog())
      {
        this.treeViewStp.Nodes.Clear();
        this.renderView.ClearScene();

        StpBrower browser = new StpBrower(this.treeViewStp, this.renderView);
        browser.ReadFile(dlg.FileName);
      }

      renderView.View3d.FitAll();
    }

    private void treeViewStp_AfterSelect(object sender, TreeViewEventArgs e)
    {
     
    }
  }


}







StpBrower.cs



?using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using AnyCAD.Platform;
using AnyCAD.Presentation;

namespace StpViewer
{
  class StpBrower : AnyCAD.Platform.ITopoShapeReaderContext
  {
    private System.Windows.Forms.TreeView treeView = null;
    private AnyCAD.Presentation.RenderWindow3d renderView = null;
    private Stack<System.Windows.Forms.TreeNode> nodeStack = new Stack<System.Windows.Forms.TreeNode>();
    private int nShapeCount = 100;

    public StpBrower(System.Windows.Forms.TreeView _treeView, AnyCAD.Presentation.RenderWindow3d _renderView)
    {
      treeView = _treeView;
      renderView = _renderView;
    }

    public bool ReadFile(String fileName)
    {
      AnyCAD.Exchange.StepReader reader = new AnyCAD.Exchange.StepReader();
      return reader.Read(fileName, this);
    }

    public override void OnBeginGroup(String name)
    {
      if (name.Length == 0)
      {
        name = "<UNKNOWN>";
      }

      if (nodeStack.Count == 0)
      {
        System.Windows.Forms.TreeNode node = treeView.Nodes.Add(name);
        nodeStack.Push(node);
      }
      else
      {
        nodeStack.Push(nodeStack.Peek().Nodes.Add(name));
      }
    }

    public override void OnEndGroup()
    {
      nodeStack.Pop();
    }

    public override void OnCompound(TopoShape shape)
    {
      ++nShapeCount;
      nodeStack.Peek().Nodes.Add(String.Format("{0}", nShapeCount), "Assembly");
      renderView.ShowGeometry(shape, nShapeCount);
    }

    public override void OnSolid(TopoShape shape)
    {
      ++nShapeCount;
      nodeStack.Peek().Nodes.Add(String.Format("{0}", nShapeCount), "Solid");
      renderView.ShowGeometry(shape, nShapeCount);
    }

    public override void OnShell(TopoShape shape)
    {
      ++nShapeCount;
      nodeStack.Peek().Nodes.Add(String.Format("{0}", nShapeCount), "Shell");
      renderView.ShowGeometry(shape, nShapeCount);
    }

    public override void OnFace(TopoShape shape)
    {
      ++nShapeCount;
      nodeStack.Peek().Nodes.Add(String.Format("{0}", nShapeCount), "Face");
      renderView.ShowGeometry(shape, nShapeCount);
    }
  }
}
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