Author Topic: New Tricks For Pure Basic Coders. (Read 10482 times)

Speler · « **on:** November 16, 2006, 03:08:00 pm »

Everything here uses ZoomStandard.

Lately I have done alot of experementing with using Y functions for full screen graphics. I found that you can actually make very fast and fairly memory efficiant graphics using nothing but Y commands (Y1, Y2 etc). Here is a list of several things that can be done:

Brick Wall:
First set to mode Simul and store 8 to xRes, now store -10(X-20 to Y1 -10 to Y2 and -10 to Y3. Select the graph style that looks like an upside down staircase. Hit graph. You have a Brick Wall. This can be used in program.

Grayscale Bug
This can be used in a program but I can't see any real way to... anywho: use all the same settings as for the brick wall (including the upside down staircase's) except graph different things. -10(X-20)/(X<8 to Y1 and -10(X<8 to Y2.

DJ Omnimaga · « **Reply #1 on:** November 16, 2006, 04:10:00 pm »

interesting find

Speler · « **Reply #2 on:** November 16, 2006, 04:10:00 pm »

Thanks.

Halifax · « **Reply #3 on:** November 17, 2006, 09:38:00 am »

Woah that's pretty sweet and awesome find. These are the kind of advances we need

For the brick wall you could set those -10's to 0's so that half the screen is bricks and that is like a background to a room or something

Another thing is yes I noticed this grayscale bug before and it is like wierd cause if you put that stuff you said for grayscale into the graphing screen and graph it then you'll notice on the last line of vertical pixels that it will be flickerless grayscale which is very wierd

Radical Pi · « **Reply #4 on:** November 17, 2006, 10:10:00 am »

Great job documenting these!
The 'grayscale bug' I have noticed, but only when trying to get different shades of blue with the fast contrast setting (it works there too. Try setting the left half of the graphscreen all black, right half clear, and run the bluescale loop. You get Perfect gray and blue!)

dinhotheone · « **Reply #5 on:** December 10, 2006, 07:01:00 am »

that is so sweet, im going to have to look up simulate mode in the manual to figure out how it works tho

bfr · « **Reply #6 on:** December 10, 2006, 11:20:00 am »

dinhotheone: Simulate mode? Of of the top of me head, I'm not completely sure, but I think that it's simultaneaus (sp?) mode, meaning that it graphcs equations simultaneausly, or at the same time.

Super_Speler: Nice work! :thumbup:

elfprince13 · « **Reply #7 on:** December 10, 2006, 02:32:00 pm »

psuedo local variables for recursion:
keep a list with the variable name you want, and an index variable measuring your recursion depth. every time you enter a routine that needs the local variable increase the index variable and push onto the variable list with augment{(L)VARNM,{VAL}). every time you exit, decrease the index variable and pop off the variable list with indexvar->dim((L)VARNM

you can access the local variable with (L)VARNM(indexvar)

dinhotheone · « **Reply #8 on:** December 16, 2006, 03:51:00 pm »

Ya i didn't really put the correct ending to the abreviation. I understand now.
plus i can't feel to bad since it was an extreme programmer that corrected me. not just one of the regular ones.

Halifax · « **Reply #9 on:** December 17, 2006, 12:24:00 am »

This is always something that has annoyed me and I figured I should say it. Shouldnt TI call it concurrently cause it doesn't do it simultaneously. It searches ever vertical row for if a pixel should be on

DJ Omnimaga · « **Reply #10 on:** December 17, 2006, 07:17:00 am »

moved to calc help and support and pinned

Netham45 · « **Reply #11 on:** August 10, 2007, 12:24:00 pm »

I found this earlier:
c1-->

CODE

ec1
for(a,0,1000)
If G=1
Then
getkey
end
end
c2

ec2
too roughly 10 seconds longer than this:
c1

-->

CODE

ec1
for(a,0,1000)
1->g
while g=1
getkey
->g
end
end
c2

ec2

JonimusPrime · « **Reply #12 on:** August 11, 2007, 03:12:00 am »

So While is faster than if then That is an awesome find.

Speler · « **Reply #13 on:** August 11, 2007, 03:36:00 am »

Did you use StartTmr, a timer, or your own counting for the tests?

dinhotheone · « **Reply #14 on:** August 11, 2007, 03:59:00 am »

wow, thats pretty nasty, the only annoying part is that it might be a pain to break outa that while. i guess you could just do while condition and g, and then change g for it to work like a true if then

Author Topic: New Tricks For Pure Basic Coders. (Read 10482 times)

elfprince13