Module "geocortex/essentials/utilities/ImageUtilities"

Index

Functions

Functions

calculateAspectRatioFit

calculateAspectRatioFit(srcWidth: number, srcHeight: number, maxWidth: number, maxHeight: number): object

- Defined in Essentials.ts:7717
Conserve aspect ratio of the original image. Useful when shrinking/enlarging images to fit into a certain area.

Parameters
- srcWidth: number
  
  Source area width
- srcHeight: number
  
  Source area height
- maxWidth: number
  
  Maximum available width
- maxHeight: number
  
  Maximum available height
Returns object
- height: number
- width: number

getRawByteDataFromDataUri

getRawByteDataFromDataUri(uri: string): string

- Defined in Essentials.ts:7741
Get the raw byte data from a data uri.

Parameters
- uri: string
  
  The data uri.
Returns string

resizeImage

resizeImage(source: HTMLImageElement | HTMLCanvasElement | string, width: number, height: number): Promise<string>

- Defined in Essentials.ts:7728
Resize a source image to the desired dimensions.

Parameters
- source: HTMLImageElement | HTMLCanvasElement | string
  
  Source HTMLImageElement, HTMLCanvasElement, or base64 data uri string of image.
- width: number
  
  Desired width of the image.
- height: number
  
  Desired height of the image.
Returns Promise<string>

A base64 png image.

resizeImageToMaxDimensions

resizeImageToMaxDimensions(source: HTMLImageElement | HTMLCanvasElement | string, maxWidth: number, maxHeight: number): Promise<string>

- Defined in Essentials.ts:7736
Resize a source image to the desired dimensions provided by a maximum width and height, while maintaining the aspect ratio of the original image.

Parameters
- source: HTMLImageElement | HTMLCanvasElement | string
  
  Source HTMLImageElement, HTMLCanvasElement, or base64 data uri string of image.
- maxWidth: number
- maxHeight: number
Returns Promise<string>

A base64 png image.