Copy Window

This option is designed to enable windows to be copied, rescaled, flipped and/or transposed from one region to another in the same or different buffers.

Window Selection: Window to be copied

The window selection submenu is produced to enable specification of the window to be copied. Further information on window specification is available from [H Help] within the submenu.

Vertical magnification (1: full size, 2: double size, 0.5 half size etc; negative to flip) ?

This entry specifies the scaling to be used for the vertical coordinate of the window. Values with magnitudes greater than one give larger resultant images, while magnitudes less than one reduce the size of the result. Negative values reflect the image about a horizontal line.

Horizontal magnification (1: full size, 2: double size, 0.5 half size etc; negative to flip) ?

This entry specifies the scaling to be used for the horizontal coordinate of the window. Values with magnitudes greater than one give larger resultant images, while magnitudes less than one reduce the size of the result. Negative values reflect the image about a vertical line.

Transpose horizontal and vertical ?

An afirmative answer (<Y>) will cause the horizontal and vertical coordinates to be interchanged. Note that this preserves the aspect ratio in pixel coordinates, not the physical coordinates of the display. The aspect ratio of the display may be preserved by choosing appropriat horizontal and vertical magnifications.

Duplicate to what buffer (-1 for current buffer) ?

This option specifies the destination buffer to which the image is to be written. A value of -1 will give the current output buffer.

Cursor Positioning: Destination for top left corner of window

The position of the scaled, shifted and transformed window in the destination buffer is specified by using the cursor submenu to locate the top left corner of the resulting window. For more details on cursor operation, refer to [H Help] within the cursor submenu.

Parent menu

Main Menu

DigImage User Documentation

Stuart Dalziel, last page update: 19 February 1996