Mann Format Data Viewer


Introduction

The UPGVIEW product is an optional feature of the UPGUTILS Mann Format Data Conversion Tools. UPGVIEW allows the user to closely examine the exposure data in one or more Mann format files without actually creating a photomask.

The programme has the following major features :


Viewer Summary

In order to graphically view one or more Mann format exposure files, the user will usually perform the following steps:

Setup -> Pattern generator

Select a target pattern generator with the user dialogue that appears for this command. Mann data files to be viewed must all be formatted for this pattern generator.

Setup -> Graphical viewer -> Define graphics

Set the desired graphics mode if the default mode is not suitable. A sample of the chosen mode can be viewed by selecting Check_graphics from the menu.

At startup, a graphics mode will automatically be chosen based on the highest resolution capabilities of the user's video graphics hardware. It is possible that the monitor attached to the user's system isn't capable of displaying this resolution so a lesser resolution may be chosen. The video drivers used with this software are capable of recognising and using CGA, EGA, VGA, Monochrome and VESA (16 colours) compatible video hardware.

The sample graphics mode display of Figure D.1 is available to show the resolution that will be used for displaying exposures. The sample screen also shows the examples of each of the fill patterns available for filled exposures.

Where VESA compatible hardware is installed, the user may choose to force the use of the faster VGA mode by specifying the option /v on the command line e.g. c>upgutils /v

View -> Select Mann files

Enter the names of Mann format data files into a list of files. A user dialogue window appears for this command. Press the [Add] button to add a file name to the file list. A standard file locator dialogue will appear for identifying the desired file. Once the file name appears in the list, press the [Options] button. The user will now have a choice of colours and fill patterns to be used when displaying this file's exposures. Repeat the process of entering file names and setting colours and fill patterns until all files appear in the list. Press the [Done] button to close the file entry dialogue.

View -> View files

Select this menu command to view the files in the previously built list.

The display will switch to graphics mode and the exposures in all files will be drawn on the screen.


Graphics Mode

Once in graphics mode, the user's screen will appear as shown in Figure D.2.

An arrow shaped cursor appears in the centre of the screen. The position of this cursor will be used as the centre of the view for all operations that involve redrawing the screen.

The current zoom factor appears in the upper left corner and represents a multiplier applied to all exposures before displaying them on the screen. The larger this number, the higher the magnification applied to the exposures. At any time, the numeric keys (0..9), as well as the period and backspace keys can be used to enter or modify the current zoom factor. Pressing e will cause the current zoom factor to be applied to the view.

The position of the tip of the arrow-shaped cursor (in pattern generator units) is displayed next to the zoom factor. The position will be in millimetres (mm) for metric data and inches (") for English data. The cursor position is constantly updated as the cursor is moved, either through moving the mouse or certain keys as follows:



Key Cursor motion
down arrow down one pixel
up arrow up one pixel
right arrow right 1 pixel
left arrow left 1 pixel
PgDn down 10 pixels
PgUp up 10 pixels
Ctrl-right arrow right 10 pixels
Ctrl-left arrow left 10 pixels
Home to left side
Ctrl-PgUp to top
End to right side
Ctrl-PgDn to bottom

The status of various display options is shown in the upper right corner of the display. These options can be toggled on or off by using the commands shown below. One or more options can be in effect at any time.

Command Description Status
A toggle between Absolute and relative coordinate display. In relative mode, the mouse cusor position, when A is pressed, becomes the new origin for the view. --A-
M mirror the image about the vertical axis -M--
R rotate the image counter clockwise (CCW) by 90 degrees ---9
S turn on the fill pattern for exposures S---


The following additional commands will also be recognised when in graphics mode

+ zoom the current image by a factor of 2
- zoom the current image by a factor of 1/2
X return to the text mode desktop display
Esc return to the text mode desktop display
left mouse button redraw the screen centered about the mouse cursor position
right mouse button zoom the current view by a factor of 2
shift+right mouse button zoom the current view by a factor of 1/2