text
stringlengths 0
4k
|
---|
programs that do just that already please let me know ASAP. You'll |
save me a lot of time. |
Thank's a million. |
I hope these "tips" have entertained as much as enlightened you. |
Like a person I use to listen to on radio often said "When I learn |
something during the day I go to bed at night less ignorant." |
And so it has been for me a joy to learn how to draw. |
From: Nveilleu@emr1.emr.ca (Normand Veilleux) |
Date: Sat Jan 08 16:08:26 CST 1994 |
I have received a few requests to explain the "logic" behind the |
smoothing. So far I have only explained what tools I use to create |
it (flipping back and forth from normal to reduced view in |
WordPerfect). I will try to give here the same explanation I gave |
the first student who asked. Since I did not save that discussion |
this one will be slightly different. |
The whole thing is visual as you could have guessed. So, the best |
way I know to show you what I mean is by giving an example: |
Take this Doesn't this |
for example look smoother? |
8 8 |
88 Yb |
88 Yb |
888 Y8a, |
88888 `"Y888 |
BTW, that reminds me of a quote I saw not too long ago: "A truly |
wise person does not play leapfrog with a rhinoceros" :-) |
I consider the "smoothing problem" as nothing more than a "weight |
distribution problem". By shifting up the pixel density of an 8 |
with characters such as P, Y, ", etc., where necessary, and by |
shifting down the pixel density of an 8 with characters such as b, |
d, a, etc., where necessary, the graphic takes on a smoother look. |
May sound simple when it's explained like that but I don't know |
where to start to program it. I'll start with easier stuff first, |
like flipping a picture horizontally. That's kids stuff. I used |
a semi-manual technique when I had to flip my ascii face around. |
The picture I had drawn was a mirror image, so it had to be flipped |
to look right. I created two small macros (less than 10 commands |
each) in WordPerfect which did the bulk of the work. After that |
all I needed to do was about 20 global search and replaces. It |
took about 5 - 10 minutes total. It would have taken hours to |
retype it in reverse or to write a program to do it. |
Since I don't have access to a scanner, but I sometimes want to |
take a picture from paper and draw it in ascii I developed a GRID |
technique to help me out. Anyone who wants to give it a try needs |
to create the grid electronically and then print it. Here is how |
it works. Start with the following grid: |
1.2.3.4.5. |
2.A.B.C.D. |
3.E.F.G.H. |
4.I.J.K.L. |
5.M.N.O.P. |
The dots can actually be replaced by spaces, so create the grid |
using your preference. |
Then, copy the whole grid horizontally until you fill all the width |
of the paper size you want to use. And then, copy this new grid as |
many times as needed to fill the length of the page. You will end |
up with something along these lines (with spaces): |
1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 |
2 A B C D 2 A B C D 2 A B C D |
3 E F G H 3 E F G H 3 E F G H |
4 I J K L 4 I J K L 4 I J K L |
5 M N O P 5 M N O P 5 M N O P |
1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 |
2 A B C D 2 A B C D 2 A B C D |
3 E F G H 3 E F G H 3 E F G H |
4 I J K L 4 I J K L 4 I J K L |
5 M N O P 5 M N O P 5 M N O P |
Now, get a printed copy of that grid and put it aside for a bit. |
BTW, this technique works best with pictures that are about 1/4 of |
an 8 1/2 x 11 piece of paper. Larger pictures can also be done but |
are cumbersome and time consuming. That is how I created three |
ascii pictures so far: the hand that showed "that close", the ying |
yang, and my own face. The toughest thing about the face was to |
draw it on paper first. |
At this stage you need to find a picture that is reasonably simple |
in terms of complexity :-) In other words not too detailed; the |
coarser the better. Something taken from a colouring book would |
probably be an excellent choice (although I have not used any |
myself yet). You may need to "modify" the picture so that it will |
also "cooperate" to the process (especially if taken from a |
photograph or other source). |