Function

Summary

Makes a new image from a scaled part of an image.

Package

graphics-ports

Signature

make-scaled-sub-image port image to-width to-height &key from-x from-y from-width from-height => sub-image

Arguments

port

A graphics port.

image

An image.

to-width

An integer.

to-height

An integer.

from-x

An integer.

from-y

An integer.

from-width

An integer.

from-height

An integer.

Values

sub-image

An image.

Description

The function make-scaled-sub-image makes a new image from the scaled rectangular region of image specified by from-x , from-y , from-width and from-height . The returned sub-image is associated with port and has size specified by to-width and to-height .

The default values of from-x and from-y are 0.

The default value of from-width is the width of image .

The default value of from-height is the height of image .

When from-width equals to-width and from-height equals to-height , then this function is equivalent to make-sub-image.

See also

image
make-sub-image
Drawing - Graphics Ports
Drag and Drop