Resize + Crop

                _ResizeTransform = New Aurigma.GraphicsMill.Transforms.Resize(CSng(_bitmap.Width * dblresRatio), CSng(_bitmap.Height * dblresRatio), Aurigma.GraphicsMill.Transforms.InterpolationMode.HighQuality)
                AddHandler _ResizeTransform.Stopped, AddressOf _ResizeTransform_Stopped

                _ResizeTransform.Priority = Threading.ThreadPriority.BelowNormal
                _ResizeTransform.SynchronizationMode = Aurigma.GraphicsMill.SynchronizationMode.Sync
                _ResizeTransform.CropEnabled = True
                _ResizeTransform.CropRectangle = cropRectangle
                _ResizeTransform.ApplyTransform(_bitmap)

?cropRectangle

{X = 0 Y = 0 Width = 2592 Height = 1944}

Bottom: 1944

Empty: {X = 0 Y = 0 Width = 0 Height = 0}

Height: 1944

IsEmpty: False

Left: 0

Location: {X = 0 Y = 0}

Right: 2592

Size: {Width = 2592 Height = 1944}

Top: 0

Width: 2592

X: 0

Y: 0

?_bitmap.Width

2592

?_bitmap.Height

1944

?dblresRatio

0.83361111111111108

A first chance exception of type 'System.ArgumentOutOfRangeException' occurred in Aurigma.GraphicsMill.dll

Argument 'CropRectangle' is out of range (Coordinates of all points of crop rect must be inside source image.).

Hi,

I am having code as above, during debug time, I try to double check on the value, but seems like everything are okay. The only possibility will be the image size will be smaller after the resize, thus the cropRectangle will not be within the image. But, from the help, seems like the system will run the crop before the resize (or, it will only resize the "cropped" area.

Please advice.

Crop and resize works not the way you described. It does crop and resize at the same time, it allows to avoid edge effects. The crop rectangle should be defined in coordinates of resized image. Let's consider the following example:

using (Aurigma.GraphicsMill.Bitmap bmp = 
    new Aurigma.GraphicsMill.Bitmap(
        100, 
        100, 
        Aurigma.GraphicsMill.PixelFormat.Format24bppRgb))
{
    Aurigma.GraphicsMill.Transforms.Resize resize = new
        Aurigma.GraphicsMill.Transforms.Resize();
    resize.Width = 75;
    resize.Height = 75;
    resize.CropRectangle = new System.Drawing.Rectangle(0, 0, 50, 50);
    resize.CropEnabled = true;
    resize.ApplyTransform(bmp);
    bmp.Save("c:/temp/1.jpg");
}

So we have the original image 100x100, when we resize it, it is 75x75 and then we crop the rectangle (0, 0, 50, 50). The destination image will be 50x50.