Most graphics programs let you rotate, flip and change colors.
One handy action is to show all patterns of directional arrays -- e.g. to show
the four directions of a 4-square, I simply take the original plot, copy,
rotate and pick another color. The final result is an at-a-glance view of all
directions, with 3 dB points, overlap, null locations, etc. easy to identify.
Whenever there is symmetry, It's usually easier to do this graphically than to
re-do the EZNEC file.
----- Original Message -----
From: Terry Conboy
Cc: David Gould
Sent: Friday, November 13, 2009 12:46 PM
Subject: Re: plot comparisons
I tried Gary's approach of using an external graphic program with the simple
"Paint" program that is included in Win XP. From the 2D plot window in EZNEC,
I used Edit - Copy Plot, then pasted the plot image into Paint. Then I opened
the second antenna file, ran FF Plot and repeated Edit - Copy Plot and pasted
the second image directly on top of the first plot in Paint. If you uncheck
the Image - Draw Opaque option in Paint, you will see the two plots overlaid on
each other with the same max relative gain. If you want, you can then do File
- Save As in your choice of graphic format. (A .gif works pretty well for line
plots like this.)
73, Terry N6RY
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