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Dieses Beispiel zeigt,wie Mengenoperationen auf Solids angewendet werden können. Es gibt eine Box1, eine Box2
eine Kugel, einen Conus, einen Torus und ein Extruded Polygon. Wählen Sie zwei Objekte an, so können Sie auf diese eine
Mengenoperation ausführen. Dabe gibt es Intersect, Union und Difference. Bei Difference kommt es auf die Reihenfolge der
Auswahl der Objekte an. Mit dem Apply Operation Button können Sie die Operation ausführen. Mit Show Source Solids können die ausgewählten
Objekte vor der Mengenoperation angeschaut werden.
Im Bild sehen Sie die Differenz von einer Kugel mit einem Torus.
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;
using Drawing3d;
namespace Sample
{
public partial class Form1 : Form
{
MyDevice Device = new MyDevice();
public static Form1 CurrentForm = null;
public Form1()
{
InitializeComponent();
CurrentForm = this;
Device.WinControl = panel2;
}
private void cbBox1_CheckedChanged(object sender, EventArgs e)
{
if (cbBox1.Checked)
{
lbSolids.Items.Add(Device.Box1);
}
else
lbSolids.Items.Remove(Device.Box1);
}
private void cbBox2_CheckedChanged(object sender, EventArgs e)
{
if (cbBox2.Checked)
{
lbSolids.Items.Add(Device.Box2);
}
else
lbSolids.Items.Remove(Device.Box2);
}
private void listBox1_DrawItem(object sender, DrawItemEventArgs e)
{
Solid S = lbSolids.Items[e.Index] as Solid;
e.Graphics.DrawString(S.Name, lbSolids.Font, Brushes.Black, new PointF(0, e.Index * lbSolids.Font.Height));
}
private void xbSphere_CheckedChanged(object sender, EventArgs e)
{
if (xbSphere.Checked)
{
lbSolids.Items.Add(Device.Sphere);
}
else
{
lbSolids.Items.Remove(Device.Sphere);
}
}
private void cbCone_CheckedChanged(object sender, EventArgs e)
{
if (cbCone.Checked)
{
lbSolids.Items.Add(Device.Cone);
}
else
lbSolids.Items.Remove(Device.Cone);
}
private void cbTorus_CheckedChanged(object sender, EventArgs e)
{
if (cbTorus.Checked)
{
lbSolids.Items.Add(Device.Torus);
}
else
lbSolids.Items.Remove(Device.Torus);
}
private void cbExtruded_CheckedChanged(object sender, EventArgs e)
{
if (cbExtruded.Checked)
{
lbSolids.Items.Add(Device.Extrude);
}
else
lbSolids.Items.Remove(Device.Extrude);
}
SetOperation3D.SetOperation CurrentOperation = SetOperation3D.SetOperation.AorB;
private void rbIntersect_CheckedChanged(object sender, EventArgs e)
{
CurrentOperation = SetOperation3D.SetOperation.AandB;
}
private void rbDifference_CheckedChanged(object sender, EventArgs e)
{
CurrentOperation = SetOperation3D.SetOperation.AnotB;
}
private void rbUnion_CheckedChanged(object sender, EventArgs e)
{
CurrentOperation = SetOperation3D.SetOperation.AorB;
}
private void btnExchange_Click(object sender, EventArgs e)
{
if (lbSolids.Items.Count >= 2)
{
Device.Solids = SetOperation3D.GetCombinedSolids
(lbSolids.Items[0] as DiscreteSolid, lbSolids.Items[1] as DiscreteSolid, CurrentOperation, Device.Traces);
if (!Device.ShowSolids) btnShowSolids_Click(null, null);
}
else
MessageBox.Show("At least two Solids must Selected");
}
private void checkBox1_CheckedChanged(object sender, EventArgs e)
{
ListBox LB = lbSolids;
for (int i = 0; i < LB.Items.Count; i++)
{
DiscreteSolid S = (LB.Items[i] as DiscreteSolid);
S.SetSmooth(checkBox1.Checked);
}
if (Device.Solids!=null)
for (int i = 0; i < Device.Solids.Count; i++)
{
Device.Solids[i].SetSmooth(checkBox1.Checked);
}
}
private void btnShowSolids_Click(object sender, EventArgs e)
{
Device.ShowSolids = !Device.ShowSolids;
if (Device.ShowSolids) btnShowSolids.Text = "Show Source Solids";
else btnShowSolids.Text = "Result";
}
}
public class MyDevice : OpenGlDevice
{
internal bool ShowSolids = false;
internal List Solids = null;
internal List> Traces = new List>();
// public List SetResult = null;
//internal SolidBox Box1 = new SolidBox(new xyz(1, 1, 2), new xyz(3.5, 3.3, 4.5));
//internal SolidBox Box2 = new SolidBox(new xyz(-2, -3, 1), new xyz(6.5, 6.5, 6));
internal SolidBox Box1 = new SolidBox(new xyz(-1, -1, -1), new xyz(5, 5, 5));
internal SolidBox Box2 = new SolidBox(new xyz(1, 1, 1), new xyz(5, 5, 5));
internal DiscreteSphere Sphere = new DiscreteSphere(new xyz(0, 0, 0), 4, 16, 8);// kein Fehler
internal DiscreteCone Cone = new DiscreteCone(5, 4, System.Math.PI / 4, 20);
internal DiscreteTorus Torus = new DiscreteTorus(2, 5, 20, 20);
internal DiscreteExtrude Extrude = new DiscreteExtrude();
internal List> Trace = new List>();
protected override void OnCreated()
{
base.OnCreated();
Box1.Name = "Box1";
Box2.Name = "Box2";
Sphere.Name = "Sphere";
Cone.Name = "Cone";
Torus.Name = "Torus";
xyArray A1 = new xyArray();
Loxy Li = new Loxy();
A1.data = new xy[] { new xy(0, 0), new xy(6, 0), new xy(6, 6), new xy(0, 6), new xy(0, 0) };
Li.Add(A1);
A1 = new xyArray();
A1.data = new xy[] { new xy(2, 2), new xy(2, 4), new xy(4, 4), new xy(4, 2), new xy(2, 2) };
Li.Add(A1);
Extrude = new DiscreteExtrude(Li, 4);
Extrude.Refresh();
Extrude.Name = "Extruded";
Extrude = new DiscreteExtrude(Li, 4);
Extrude.Refresh();
Extrude.Name = "Extruded";
Torus.Transformation = Matrix.Translation(new xyz(0, 0, 0.5));
// Outlook
BackColor = Color.White;
Cursor = D3DCursors.C1001;
}
bool ShowAll = true;
Form1 Form()
{
return Form1.CurrentForm;
}
public override void OnPaint()
{
base.OnPaint();
if ((ShowSolids) && (Solids != null))
{
for (int i = 0; i < Solids.Count; i++)
{
Solids[i].Paint(this);
}
return;
}
if (ShowAll)
{
ListBox LB = Form().lbSolids;
for (int i = 0; i < LB.Items.Count; i++)
{
Solid S = (LB.Items[i] as Solid);
S.Paint(this);
}
for (int i = 0; i < Trace.Count; i++)
{
Emission = Color.Red;
PenWidth = 1;
xyz Old = new xyz();
for (int j = 0; j < Trace[i].Count; j++)
{
int n = j - 1;
if (n ==-1)
n=Trace[i].Count - 1;
Old = Trace[i][n].B;
if (Old.dist(Trace[i][j].A) > 0.01)
{
}
drawLine(Trace[i][j].A, Trace[i][j].B);
}
Emission = Color.Black;
}
}
}
}
}
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