Class Thumbnailer

Makes thumbnails of images: one of a few standard sizes, cropped or scaled, never larger than the image.

Inheritance
object
Thumbnailer
Inherited Members
Namespace: Uniform.Matrix.Server.Media
Assembly: Uniform.Matrix.Server.dll
Syntax
public static class Thumbnailer

Fields

| Edit this page View Source

Crop

Thumbnail method that fills the size and crops the rest.

Declaration
public const string Crop = "crop"
Field Value
Type Description
string
| Edit this page View Source

Scale

Thumbnail method that fits the image inside the size.

Declaration
public const string Scale = "scale"
Field Value
Type Description
string

Methods

| Edit this page View Source

CanThumbnail(string)

Return whether thumbnails can be made from contentType.

Declaration
public static bool CanThumbnail(string contentType)
Parameters
Type Name Description
string contentType
Returns
Type Description
bool
| Edit this page View Source

ChooseSize(int, int, string)

Return the standard size to make for a request: the smallest of the method at least as large, else the largest.

Declaration
public static (int Width, int Height, string Method) ChooseSize(int width, int height, string method)
Parameters
Type Name Description
int width
int height
string method
Returns
Type Description
(int Width, int Height, string Method)
| Edit this page View Source

Create(byte[], int, int, string, long)

Make a thumbnail of an image; return null when it cannot be decoded or has more than maxPixels pixels.

Declaration
public static (byte[] Data, string ContentType)? Create(byte[] image, int width, int height, string method, long maxPixels)
Parameters
Type Name Description
byte[] image
int width
int height
string method
long maxPixels
Returns
Type Description
(byte[] Data, string ContentType)?

PNG when the image has transparency, else JPEG.