Utility Routines 

*OBJ/IMAGE

Create Image Object

Format

oHandle = NEW("*obj/image", imageFilename$[, imageType$][, dpi$][, width$][, height$])

Where:

imageFilename$

Path and filename of the image to create.

imageType$

Optional parameter for the object creation that may contain one of the following: png, jpg, or jpeg. Defaults to using the file extension of the imageFilename$ to determine image type.

dpi$

Dots per inch. Defaults to 120.

width$

Width (in pixels) of the created image. Defaults to 1020 (1020/120 = 8.5 in).

height$

Height (in pixels) of the created image. Defaults to 1320 (1320/120 = 11 in).

Description

This object is used to create an image on Windows or UNIX/Linux. It supports the creation of png, jpg, or jpeg images.

(The Create Image object was added in PxPlus 2020.)

To create an image, instantiate the object and then use the ImageChannel property to add things to the image. Then, drop the object and the image will be created.

Note:
You can use the @X/Y(=num) function to use pixel positioning when adding things to the image.

The following property is supported:

 

ImageChannel

Channel of image to create. Use this to add things to the image.

On UNIX/Linux, ImageChannel cannot be used as an input channel for the 'PICTURE' mnemonic, as this only supports *BITMAP*.

Example

The following code provides an example of creating an image with the *obj/image object:

imgObj=new("*obj/image","newimage.png","","150","1500","1500")
imgChn=imgObj'ImageChannel
print (imgChn)'font'("Arial",-14)
print (imgChn)'rectangle'(@x(=5),@y(=100),@x(=900),@y(=250))
print (imgChn)'text'(@x(=1),@y(=300),@x(=500),@y(=350),"Howdy")
print (imgChn)'picture'(@x(=1),@y(=500),@x(=500),@y(=1000),"image.png",2)
drop object imgObj

See Also

@X( ) / @Y( ) Convert X/Y Coordinates