Date: 05.05.2018 14:45:51
Используя элемент Viewport3D. Почитайте здесь: https://docs.microsoft.com/en-us/dotnet/framework/wpf/graphics-multimedia/3-d-graphics-overview
Например, следующий код позволяет отобразить трехмерную фигуру и управлять положением камеры с помощью мыши (изменяет направление взгляда при движении мыши и приближает/отдаляет при нажатии кнопок мыши):
<Window x:Class="Wpf3d.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525"
WindowState="Maximized" MouseMove="Window_MouseMove" MouseDown="Window_MouseDown" MouseLeave="Window_MouseLeave">
<Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch"
>
<Viewport3D Name="myViewport" HorizontalAlignment="Stretch"
VerticalAlignment="Stretch">
<!-- Add a camera. -->
<Viewport3D.Camera>
<PerspectiveCamera
FarPlaneDistance="20"
LookDirection="0,0,1"
UpDirection="0,1,0"
NearPlaneDistance="1"
Position="0,0,-6"
FieldOfView="45" />
</Viewport3D.Camera>
<!-- Add models. -->
<Viewport3D.Children>
<ModelVisual3D>
<ModelVisual3D.Content>
<Model3DGroup >
<Model3DGroup.Children>
<!-- Lights, MeshGeometry3D and DiffuseMaterial objects are added to the ModelVisual3D. -->
<DirectionalLight Color="#FFFFFFFF" Direction="3,-4,5" />
<!-- Define a red cone. -->
<GeometryModel3D>
<GeometryModel3D.Geometry>
<MeshGeometry3D
Positions="0.293893 -0.5 0.404509 0.475528 -0.5 0.154509 0 0.5 0 0.475528 -0.5 0.154509 0 0.5 0 0 0.5 0 0.475528 -0.5 0.154509 0.475528 -0.5 -0.154509 0 0.5 0 0.475528 -0.5 -0.154509 0 0.5 0 0 0.5 0 0.475528 -0.5 -0.154509 0.293893 -0.5 -0.404509 0 0.5 0 0.293893 -0.5 -0.404509 0 0.5 0 0 0.5 0 0.293893 -0.5 -0.404509 0 -0.5 -0.5 0 0.5 0 0 -0.5 -0.5 0 0.5 0 0 0.5 0 0 -0.5 -0.5 -0.293893 -0.5 -0.404509 0 0.5 0 -0.293893 -0.5 -0.404509 0 0.5 0 0 0.5 0 -0.293893 -0.5 -0.404509 -0.475528 -0.5 -0.154509 0 0.5 0 -0.475528 -0.5 -0.154509 0 0.5 0 0 0.5 0 -0.475528 -0.5 -0.154509 -0.475528 -0.5 0.154509 0 0.5 0 -0.475528 -0.5 0.154509 0 0.5 0 0 0.5 0 -0.475528 -0.5 0.154509 -0.293892 -0.5 0.404509 0 0.5 0 -0.293892 -0.5 0.404509 0 0.5 0 0 0.5 0 -0.293892 -0.5 0.404509 0 -0.5 0.5 0 0.5 0 0 -0.5 0.5 0 0.5 0 0 0.5 0 0 -0.5 0.5 0.293893 -0.5 0.404509 0 0.5 0 0.293893 -0.5 0.404509 0 0.5 0 0 0.5 0 "
Normals="0.7236065,0.4472139,0.5257313 0.2763934,0.4472138,0.8506507 0.5308242,0.4294462,0.7306172 0.2763934,0.4472138,0.8506507 0,0.4294458,0.9030925 0.5308242,0.4294462,0.7306172 0.2763934,0.4472138,0.8506507 -0.2763934,0.4472138,0.8506507 0,0.4294458,0.9030925 -0.2763934,0.4472138,0.8506507 -0.5308242,0.4294462,0.7306172 0,0.4294458,0.9030925 -0.2763934,0.4472138,0.8506507 -0.7236065,0.4472139,0.5257313 -0.5308242,0.4294462,0.7306172 -0.7236065,0.4472139,0.5257313 -0.858892,0.429446,0.279071 -0.5308242,0.4294462,0.7306172 -0.7236065,0.4472139,0.5257313 -0.8944269,0.4472139,0 -0.858892,0.429446,0.279071 -0.8944269,0.4472139,0 -0.858892,0.429446,-0.279071 -0.858892,0.429446,0.279071 -0.8944269,0.4472139,0 -0.7236065,0.4472139,-0.5257313 -0.858892,0.429446,-0.279071 -0.7236065,0.4472139,-0.5257313 -0.5308242,0.4294462,-0.7306172 -0.858892,0.429446,-0.279071 -0.7236065,0.4472139,-0.5257313 -0.2763934,0.4472138,-0.8506507 -0.5308242,0.4294462,-0.7306172 -0.2763934,0.4472138,-0.8506507 0,0.4294458,-0.9030925 -0.5308242,0.4294462,-0.7306172 -0.2763934,0.4472138,-0.8506507 0.2763934,0.4472138,-0.8506507 0,0.4294458,-0.9030925 0.2763934,0.4472138,-0.8506507 0.5308249,0.4294459,-0.7306169 0,0.4294458,-0.9030925 0.2763934,0.4472138,-0.8506507 0.7236068,0.4472141,-0.5257306 0.5308249,0.4294459,-0.7306169 0.7236068,0.4472141,-0.5257306 0.8588922,0.4294461,-0.27907 0.5308249,0.4294459,-0.7306169 0.7236068,0.4472141,-0.5257306 0.8944269,0.4472139,0 0.8588922,0.4294461,-0.27907 0.8944269,0.4472139,0 0.858892,0.429446,0.279071 0.8588922,0.4294461,-0.27907 0.8944269,0.4472139,0 0.7236065,0.4472139,0.5257313 0.858892,0.429446,0.279071 0.7236065,0.4472139,0.5257313 0.5308242,0.4294462,0.7306172 0.858892,0.429446,0.279071 " TriangleIndices="0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 " />
</GeometryModel3D.Geometry>
<GeometryModel3D.Material>
<DiffuseMaterial>
<DiffuseMaterial.Brush>
<SolidColorBrush
Color="Red"
Opacity="1.0"/>
</DiffuseMaterial.Brush>
</DiffuseMaterial>
</GeometryModel3D.Material>
</GeometryModel3D>
</Model3DGroup.Children>
</Model3DGroup>
</ModelVisual3D.Content>
</ModelVisual3D>
</Viewport3D.Children>
</Viewport3D>
</Grid>
</Window>
Код c#:
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Media3D;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace Wpf3d
{
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
cam = myViewport.Camera as PerspectiveCamera;
}
Point pos;//предыдущее положение мыши
bool HasPos = false;
PerspectiveCamera cam;
private void Window_MouseMove(object sender, MouseEventArgs e)
{
Point pos2 = e.GetPosition(myViewport);//получаем положение мыши
if (!HasPos)
{
pos = pos2;//если нет предыдущего положения, сохраним его и выйдем
HasPos = true;
return;
}
//найдем разницу между текущим и предыдущим положением
double dx = pos2.X - pos.X;
double dy = pos2.Y - pos.Y;
pos = pos2;
//сменим направление камеры
var direct = cam.LookDirection;
direct.X += 0.001 * dx;
direct.Y += 0.001 * dy;
if (direct.X > 0.4) direct.X = 0.4;
if (direct.X < -0.4) direct.X = -0.4;
if (direct.Y > 0.4) direct.Y = 0.4;
if (direct.Y < -0.4) direct.Y = -0.4;
cam.LookDirection = direct;
}
private void Window_MouseDown(object sender, MouseButtonEventArgs e)
{
//приближение/отдаление камеры при щелчке мыши
var p = cam.Position;
if (e.ChangedButton == MouseButton.Left) p.Z += 0.2;
else p.Z -= 0.2;
cam.Position = p;
}
private void Window_MouseLeave(object sender, MouseEventArgs e)
{
//сброс положения мыши при покидании окна
this.HasPos = false;
var direct = cam.LookDirection;
direct.X = 0;
direct.Y = 0;
cam.LookDirection = direct;
}
}
}
Автор: VadimTagil