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Matrix3DProjection Kelas

Definisi

Menerapkan proyeksi Matrix3D ke objek.

public ref class Matrix3DProjection sealed : Projection
/// [Windows.Foundation.Metadata.Activatable(65536, Windows.Foundation.UniversalApiContract)]
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
/// [Windows.UI.Xaml.Markup.ContentProperty(Name="ProjectionMatrix")]
class Matrix3DProjection final : Projection
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
/// [Windows.UI.Xaml.Markup.ContentProperty(Name="ProjectionMatrix")]
/// [Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.UniversalApiContract")]
class Matrix3DProjection final : Projection
[Windows.Foundation.Metadata.Activatable(65536, typeof(Windows.Foundation.UniversalApiContract))]
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
[Windows.UI.Xaml.Markup.ContentProperty(Name="ProjectionMatrix")]
public sealed class Matrix3DProjection : Projection
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
[Windows.UI.Xaml.Markup.ContentProperty(Name="ProjectionMatrix")]
[Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.UniversalApiContract")]
public sealed class Matrix3DProjection : Projection
Public NotInheritable Class Matrix3DProjection
Inherits Projection
<Matrix3DProjection .../>
-or-
<!--xmlns:m3d="using:Windows.UI.Xaml.Media.Media3D"-->
<Matrix3DProjection>
  <m3d:Matrix3D>matrix3DInitializationString</m3d:Matrix3D>
</Matrix3DProjection>
Warisan
Object Platform::Object IInspectable DependencyObject Projection Matrix3DProjection
Atribut

Persyaratan Windows

Rangkaian perangkat
Windows 10 (diperkenalkan dalam 10.0.10240.0)
API contract
Windows.Foundation.UniversalApiContract (diperkenalkan dalam v1.0)

Contoh

Contoh ini menggunakan matriks Matrix3D sederhana untuk mengubah gambar ke arah X dan Y saat Anda mengklik gambar.

<!-- When you click on the image, the projection is applied. -->
<Image PointerPressed="ApplyProjection" x:Name="BeachImage" Source="guy_by_the_beach.jpg"
       Width="200"/>
private void ApplyProjection(Object sender, PointerRoutedEventArgs e)
{
    Matrix3D m = new Matrix3D();

    // This matrix simply translates the image 100 pixels
    // down and 100 pixels right.
    m.M11 = 1.0; m.M12 = 0.0; m.M13 = 0.0; m.M14 = 0.0;
    m.M21 = 0.0; m.M22 = 1.0; m.M23 = 0.0; m.M24 = 0.0;
    m.M31 = 0.0; m.M32 = 0.0; m.M33 = 1.0; m.M34 = 0.0;
    m.OffsetX = 100; m.OffsetY = 100; m.OffsetZ = 0; m.M44 = 1.0;

    Matrix3DProjection m3dProjection = new Matrix3DProjection();
    m3dProjection.ProjectionMatrix = m;

    BeachImage.Projection = m3dProjection;

}
<Image Source="guy_by_the_beach.jpg">
    <Image.Projection>
        <Matrix3DProjection  ProjectionMatrix="2, 0, 0, 0,
                                              0, 2, 0, 0,
                                              0, 0, 1, 0,
                                              100, 100, 0, 1"/>
    </Image.Projection>
</Image>
<!-- When you click on the image, the projection is applied. -->
<Image PointerPressed="ApplyProjection" x:Name="BeachImage" Source="guy_by_the_beach.jpg" 
       Width="200"/>
private void ApplyProjection(Object sender, PointerRoutedEventArgs e)
{
    // Translate the image along the negative Z-axis such that it occupies 50% of the
    // vertical field of view.
    double fovY = Math.PI / 2.0;
    double translationZ = -BeachImage.ActualHeight / Math.Tan(fovY / 2.0);
    double theta = 20.0 * Math.PI / 180.0;

    // You can create a 3D effect by creating a number of simple 
    // tranformation Matrix3D matrices and then multiply them together.
    Matrix3D centerImageAtOrigin = TranslationTransform(
             -BeachImage.ActualWidth / 2.0,
             -BeachImage.ActualHeight / 2.0, 0);
    Matrix3D invertYAxis = CreateScaleTransform(1.0, -1.0, 1.0);
    Matrix3D rotateAboutY = RotateYTransform(theta);
    Matrix3D translateAwayFromCamera = TranslationTransform(0, 0, translationZ);
    Matrix3D perspective = PerspectiveTransformFovRH(fovY,
            LayoutRoot.ActualWidth / LayoutRoot.ActualHeight,   // aspect ratio
            1.0,                                                // near plane
            1000.0);                                            // far plane
    Matrix3D viewport = ViewportTransform(LayoutRoot.ActualWidth, LayoutRoot.ActualHeight);

    Matrix3D m = Matrix3DHelper.Multiply(centerImageAtOrigin,invertYAxis);
    m = Matrix3D.Multiply(m ,rotateAboutY);
    m = Matrix3D.Multiply(m,translateAwayFromCamera);
    m = Matrix3D.Multiply(m,perspective);
    m = Matrix3D.Multiply(m,viewport);

    Matrix3DProjection m3dProjection = new Matrix3DProjection();
    m3dProjection.ProjectionMatrix = m;

    BeachImage.Projection = m3dProjection;
}

private Matrix3D TranslationTransform(double tx, double ty, double tz)
{
    Matrix3D m = new Matrix3D();

    m.M11 = 1.0; m.M12 = 0.0; m.M13 = 0.0; m.M14 = 0.0;
    m.M21 = 0.0; m.M22 = 1.0; m.M23 = 0.0; m.M24 = 0.0;
    m.M31 = 0.0; m.M32 = 0.0; m.M33 = 1.0; m.M34 = 0.0;
    m.OffsetX = tx; m.OffsetY = ty; m.OffsetZ = tz; m.M44 = 1.0;

    return m;
}

private Matrix3D CreateScaleTransform(double sx, double sy, double sz)
{
    Matrix3D m = new Matrix3D();

    m.M11 = sx; m.M12 = 0.0; m.M13 = 0.0; m.M14 = 0.0;
    m.M21 = 0.0; m.M22 = sy; m.M23 = 0.0; m.M24 = 0.0;
    m.M31 = 0.0; m.M32 = 0.0; m.M33 = sz; m.M34 = 0.0;
    m.OffsetX = 0.0; m.OffsetY = 0.0; m.OffsetZ = 0.0; m.M44 = 1.0;

    return m;
}

private Matrix3D RotateYTransform(double theta)
{
    double sin = Math.Sin(theta);
    double cos = Math.Cos(theta);

    Matrix3D m = new Matrix3D();

    m.M11 = cos; m.M12 = 0.0; m.M13 = -sin; m.M14 = 0.0;
    m.M21 = 0.0; m.M22 = 1.0; m.M23 = 0.0; m.M24 = 0.0;
    m.M31 = sin; m.M32 = 0.0; m.M33 = cos; m.M34 = 0.0;
    m.OffsetX = 0.0; m.OffsetY = 0.0; m.OffsetZ = 0.0; m.M44 = 1.0;

    return m;
}

private Matrix3D RotateZTransform(double theta)
{
    double cos = Math.Cos(theta);
    double sin = Math.Sin(theta);

    Matrix3D m = new Matrix3D();
    m.M11 = cos; m.M12 = sin; m.M13 = 0.0; m.M14 = 0.0;
    m.M21 = -sin; m.M22 = cos; m.M23 = 0.0; m.M24 = 0.0;
    m.M31 = 0.0; m.M32 = 0.0; m.M33 = 1.0; m.M34 = 0.0;
    m.OffsetX = 0.0; m.OffsetY = 0.0; m.OffsetZ = 0.0; m.M44 = 1.0;
    return m;
}

private Matrix3D PerspectiveTransformFovRH(double fieldOfViewY, double aspectRatio, double zNearPlane, double zFarPlane)
{
    double height = 1.0 / Math.Tan(fieldOfViewY / 2.0);
    double width = height / aspectRatio;
    double d = zNearPlane - zFarPlane;

    Matrix3D m = new Matrix3D();
    m.M11 = width; m.M12 = 0; m.M13 = 0; m.M14 = 0;
    m.M21 = 0; m.M22 = height; m.M23 = 0; m.M24 = 0;
    m.M31 = 0; m.M32 = 0; m.M33 = zFarPlane / d; m.M34 = -1;
    m.OffsetX = 0; m.OffsetY = 0; m.OffsetZ = zNearPlane * zFarPlane / d; m.M44 = 0;

    return m;
}

private Matrix3D ViewportTransform(double width, double height)
{
    Matrix3D m = new Matrix3D();

    m.M11 = width / 2.0; m.M12 = 0.0; m.M13 = 0.0; m.M14 = 0.0;
    m.M21 = 0.0; m.M22 = -height / 2.0; m.M23 = 0.0; m.M24 = 0.0;
    m.M31 = 0.0; m.M32 = 0.0; m.M33 = 1.0; m.M34 = 0.0;
    m.OffsetX = width / 2.0; m.OffsetY = height / 2.0; m.OffsetZ = 0.0; m.M44 = 1.0;

    return m;
}

Keterangan

Anda dapat menggunakan jenis Matrix3DProjection dan Matrix3D untuk skenario semi-3-D yang lebih kompleks daripada yang dimungkinkan dengan jenis PlaneProjection . Matrix3DProjection menyediakan matriks transformasi 3-D lengkap untuk diterapkan ke UIElement apa pun (Anda menggunakan ini sebagai nilai untuk properti UIElement.Projection ). Matriks memungkinkan Anda menerapkan matriks transformasi model arbitrer dan matriks perspektif ke elemen visual.

Konstruktor

Matrix3DProjection()

Menginisialisasi instans baru kelas Matrix3DProjection .

Properti

Dispatcher

Mendapatkan CoreDispatcher yang dikaitkan dengan objek ini. CoreDispatcher mewakili fasilitas yang dapat mengakses DependencyObject pada utas UI meskipun kode dimulai oleh utas non-UI.

(Diperoleh dari DependencyObject)
ProjectionMatrix

Mendapatkan atau mengatur Matrix3D yang digunakan untuk proyeksi yang diterapkan ke objek.

ProjectionMatrixProperty

Mengidentifikasi properti dependensi ProjectionMatrix .

Metode

ClearValue(DependencyProperty)

Menghapus nilai lokal properti dependensi.

(Diperoleh dari DependencyObject)
GetAnimationBaseValue(DependencyProperty)

Mengembalikan nilai dasar apa pun yang ditetapkan untuk properti dependensi, yang akan berlaku dalam kasus di mana animasi tidak aktif.

(Diperoleh dari DependencyObject)
GetValue(DependencyProperty)

Mengembalikan nilai efektif properti dependensi saat ini dari DependencyObject.

(Diperoleh dari DependencyObject)
ReadLocalValue(DependencyProperty)

Mengembalikan nilai lokal properti dependensi, jika nilai lokal ditetapkan.

(Diperoleh dari DependencyObject)
RegisterPropertyChangedCallback(DependencyProperty, DependencyPropertyChangedCallback)

Mendaftarkan fungsi pemberitahuan untuk mendengarkan perubahan pada DependencyProperty tertentu pada instans DependencyObject ini.

(Diperoleh dari DependencyObject)
SetValue(DependencyProperty, Object)

Mengatur nilai lokal properti dependensi pada DependencyObject.

(Diperoleh dari DependencyObject)
UnregisterPropertyChangedCallback(DependencyProperty, Int64)

Membatalkan pemberitahuan perubahan yang sebelumnya terdaftar dengan memanggil RegisterPropertyChangedCallback.

(Diperoleh dari DependencyObject)

Berlaku untuk

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