Question

我正在使用VS 2008 - C＃Express。我想将文本块反映到3D网格对象上。我在网站上找到了一个示例代码段。我添加到我的项目然后运行它，不幸的是调试器发送错误消息“类型或命名空间名称”运行“无法找到...”。我究竟做错了什么？是否缺少名称空间？

你能帮助我吗？问候。

代码段：

public static ModelVisual3D CreateTextLabel3D(string text, Brush textColor, bool bDoubleSided, double height, Point3D center, Vector3D over, Vector3D up)
{
    // First we need a textblock containing the text of our label
    TextBlock tb = new TextBlock(new Run(text));
    tb.Foreground = textColor;
    tb.FontFamily = new FontFamily("Arial");

    // Now use that TextBlock as the brush for a material
    DiffuseMaterial mat = new DiffuseMaterial();
    mat.Brush = new VisualBrush(tb);

    // We just assume the characters are square
    double width = text.Length * height;

    // Since the parameter coming in was the center of the label,
    // we need to find the four corners
    // p0 is the lower left corner
    // p1 is the upper left
    // p2 is the lower right
    // p3 is the upper right
    Point3D p0 = center - width / 2 * over - height / 2 * up;
    Point3D p1 = p0 + up * 1 * height;
    Point3D p2 = p0 + over * width;
    Point3D p3 = p0 + up * 1 * height + over * width;

    // Now build the geometry for the sign.  It's just a
    // rectangle made of two triangles, on each side.

    MeshGeometry3D mg = new MeshGeometry3D();
    mg.Positions = new Point3DCollection();
    mg.Positions.Add(p0);    // 0
    mg.Positions.Add(p1);    // 1
    mg.Positions.Add(p2);    // 2
    mg.Positions.Add(p3);    // 3

    if (bDoubleSided)
    {
        mg.Positions.Add(p0);    // 4
        mg.Positions.Add(p1);    // 5
        mg.Positions.Add(p2);    // 6
        mg.Positions.Add(p3);    // 7
    }

    mg.TriangleIndices.Add(0);
    mg.TriangleIndices.Add(3);
    mg.TriangleIndices.Add(1);
    mg.TriangleIndices.Add(0);
    mg.TriangleIndices.Add(2);
    mg.TriangleIndices.Add(3);

    if (bDoubleSided)
    {
        mg.TriangleIndices.Add(4);
        mg.TriangleIndices.Add(5);
        mg.TriangleIndices.Add(7);
        mg.TriangleIndices.Add(4);
        mg.TriangleIndices.Add(7);
        mg.TriangleIndices.Add(6);
    }

    // These texture coordinates basically stretch the
    // TextBox brush to cover the full side of the label.

    mg.TextureCoordinates.Add(new Point(0, 1));
    mg.TextureCoordinates.Add(new Point(0, 0));
    mg.TextureCoordinates.Add(new Point(1, 1));
    mg.TextureCoordinates.Add(new Point(1, 0));

    if (bDoubleSided)
    {
        mg.TextureCoordinates.Add(new Point(1, 1));
        mg.TextureCoordinates.Add(new Point(1, 0));
        mg.TextureCoordinates.Add(new Point(0, 1));
        mg.TextureCoordinates.Add(new Point(0, 0));
    }

    // And that's all.  Return the result.

    ModelVisual3D mv3d = new ModelVisual3D();
    mv3d.Content = new GeometryModel3D(mg, mat);;
    return mv3d;
}

Answer 1

你需要确保你有：

using System.Windows.Documents;

在您的代码中，这是Run类所在的位置。

您可能还需要添加对PresentationFramework.dll的引用。

Answer 2

请务必在文件顶部添加：

using System.Windows.Documents;

Run class是System.Windows.Documents.Run - 不属于System.Windows。

C＃中的3D对象上的纹理

2 个答案: