打印视口 [英] Printing viewport

问题描述

C# wpf 3D Visual Studio 2010 net 4.5

C# wpf 3D visual studio 2010 net 4.5

嗨

我正在尝试打印我创建的 3D 图像，但无法正确打印.打印的图像大小取决于窗口的大小等.或者被剪裁等

I am trying to print out the 3D image I have created but can not get it right. The image that is printed is changing in size depending on how large the window is etc. or it is clipped etc.

我想要的是在打印机上打印视口，将其拉伸到与纸张一样宽并保持纵横比.

What I would like is to print the view port on the printer, stretching it so wide as the paper is and keeping aspect ration.

        PrintDialog dialog = new PrintDialog();
        if (dialog.ShowDialog() != true)
        { return; }

        StackPanel myPanel = new StackPanel();
        myPanel.Margin = new Thickness(40);

        Image myImage = new Image();
        myImage.Width = dialog.PrintableAreaWidth - (2 * MYDPI);
        myImage.Stretch = Stretch.Uniform;
        RenderTargetBitmap bmp = new RenderTargetBitmap((int)dialog.PrintableAreaWidth, (int)dialog.PrintableAreaWidth, 96, 96, PixelFormats.Pbgra32);
        bmp.Render(myViewPort);

        myImage.Source = bmp;

        myPanel.Children.Add(myImage);

        myPanel.Measure(new Size(dialog.PrintableAreaWidth, dialog.PrintableAreaHeight));
        myPanel.Arrange(new Rect(new Point(0, 0), myPanel.DesiredSize));

        dialog.PrintVisual(myPanel, myName);

推荐答案

以下有效，现在无论大小，图片都会缩放到纸张大小视口的大小

The following worked, now the picture get scaled to the size of the paper regardless of the size of the viewport

...

        PrintDialog dialog = new PrintDialog();

        if (dialog.ShowDialog() != true)
        { 
            return; 
        }


        Grid grid = new Grid();

        grid.Margin = new Thickness(40);

        //do this for each column
        ColumnDefinition coldef;
        coldef = new ColumnDefinition();
        coldef.Width = new GridLength(dialog.PrintableAreaWidth, GridUnitType.Pixel);
        grid.ColumnDefinitions.Add(coldef);

        //do this for each row
        RowDefinition rowdef;
        rowdef = new RowDefinition();
        rowdef.Height = new GridLength(1, GridUnitType.Auto);
        grid.RowDefinitions.Add(rowdef);
        //
        rowdef = new RowDefinition();
        rowdef.Height = new GridLength(1, GridUnitType.Auto);
        grid.RowDefinitions.Add(rowdef);

        TextBlock myTitle = new TextBlock();
        myTitle.FontSize = 24;
        myTitle.FontFamily = new FontFamily("Arial");
        myTitle.TextAlignment = TextAlignment.Center;
        myTitle.Text = myName;

        grid.Children.Add(myTitle);
        //put it in column 0, row 0
        Grid.SetColumn(myTitle, 0);
        Grid.SetRow(myTitle, 0);

        Image myImage = new Image();
        RenderTargetBitmap bmp = new RenderTargetBitmap((int)this.Width, (int)this.Height, 96, 96, PixelFormats.Pbgra32);
        bmp.Render(myViewPort);

        myImage.Source = bmp;
        myImage.Stretch = Stretch.Uniform;

        grid.Children.Add(myImage);
        //put it in column 0, row 1
        Grid.SetColumn(myImage, 0);
        Grid.SetRow(myImage, 1);

        grid.Measure(new Size(dialog.PrintableAreaWidth, dialog.PrintableAreaHeight));
        grid.Arrange(new Rect(new Point(0, 0), grid.DesiredSize));

        dialog.PrintVisual(grid, myName);

这篇关于打印视口的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！