consistancy of object size

[Guest]

How size of an object in power point pres. can be maintained when it has to
be run on other computers with different monitor size. Trying to create a
system checking patient's vision on computer monitor.
How to maintain color /hue / shades / luminousity of an object when shown on
monitor of other computer. trying to create a system for color vision
examination of patients. When power point is run on other system with
different size monitor size of object presented also changes.

 

[Steve Rindsberg]

How size of an object in power point pres. can be maintained when it has to
be run on other computers with different monitor size. Trying to create a
system checking patient's vision on computer monitor.
How to maintain color /hue / shades / luminousity of an object when shown on
monitor of other computer. trying to create a system for color vision
examination of patients. When power point is run on other system with
different size monitor size of object presented also changes.

PowerPoint has no way of calibrating colors. Gretag-MacBeth's Eye-One line of
products includes a way of calibrating video projectors (ie, beamers). The
same technology might work with monitors as well.

Maintaining the size is a tricky proposition. Powerpoint fills the video
display as best it can with the slide presentation, w/o distorting it.

That means that a 1" square in PPT will be various sizes depending on whether
you display it at 800x600, 1024x768 or higher.

And PPT has no way of knowing how large a physical monitor the video output's
going to. That 1024x768 image might be on a 10" laptop LCD or a 10 meter
projection screen.

A custom-written PowerPoint addin could let each individual user calibrate
their hardware/screen and have PPT adjust known shapes to accommodate the
calibration, I think.