SetResolution

RasterImage.SetResolution method

Sets the resolution for this RasterImage.

public virtual void SetResolution(double dpiX, double dpiY)
Parameter Type Description
dpiX Double The horizontal resolution, in dots per inch, of the RasterImage.
dpiY Double The vertical resolution, in dots per inch, of the RasterImage.

Examples

The following example shows how to set horizontal/vertical resolution of a raster image.

[C#]

string dir = "c:\\temp\\";

using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.jpg"))
{
    Aspose.Imaging.RasterImage rasterImage = (Aspose.Imaging.RasterImage)image;

    // Get horizontal and vertical resolution of the image
    double horizontalResolution = rasterImage.HorizontalResolution;
    double verticalResolution = rasterImage.VerticalResolution;
    System.Console.WriteLine("The horizontal resolution, in pixels per inch: {0}", horizontalResolution);
    System.Console.WriteLine("The vertical resolution, in pixels per inch: {0}", verticalResolution);

    if (horizontalResolution != 96.0 || verticalResolution != 96.0)
    {
        // Use the SetResolution method for updating both resolution values in a single call.
        System.Console.WriteLine("Set resolution values to 96 dpi");
        rasterImage.SetResolution(96.0, 96.0);

        System.Console.WriteLine("The horizontal resolution, in pixels per inch: {0}", rasterImage.HorizontalResolution);
        System.Console.WriteLine("The vertical resolution, in pixels per inch: {0}", rasterImage.VerticalResolution);
    }

    // The output may look like this:
    // The horizontal resolution, in pixels per inch: 300
    // The vertical resolution, in pixels per inch: 300
    // Set resolution values to 96 dpi
    // The horizontal resolution, in pixels per inch: 96
    // The vertical resolution, in pixels per inch: 96
}

See Also