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Author Topic: Optimized Routine: Set Up Friendly Graph Window  (Read 9068 times)

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Offline Galandros

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Optimized Routine: Set Up Friendly Graph Window
« on: May 30, 2010, 03:37:58 pm »
I did a long time ago. I experimented a lot to get this optimized routine. I added this to TI|BD some time after discover...
And because I see unoptimized versions of this in lots of programs, I decided to share on the forums.
I still need to spread this optimized version through other entries of the wiki.

Here's the code:
Code: [Select]
//// Prepare graph screen to be used in TI-BASIC
StoreGDB 0 // save the current graph screen, user friendly
FnOff         // we don't want functions to bloat
PlotsOff      // plots too
GridOff        // rare but just in case
AxesOff      // no axes please :)
// miss here the coordinates setup...

///main code

RecallGDB 0 // restore the graph screen, user friendly
DelVar GDB0 // clean up

//The following code sets up an integer square window with (0,0) in the center:
:ZStandard
:ZInteger

//An integer window with (0,0) in the bottom left corner
:ZStandard
:84→Xmin
:72→Ymax
:ZInteger

//An integer window with (0,0) in the top left corner
:ZStandard
:84→Xmin
:-72→Ymax
:ZInteger

And a alternate version of preserving user setting with a few drawbacks:
Code: [Select]
ZoomSto // store the zoom
FnOff         // we don't want functions to bloat
PlotsOff      // plots too
GridOff        // rare but just in case
AxesOff      // no axes please :)
// miss here the coordinates setup...

///main code

// restore
ZoomRcl  // restore the zoom
AxesOn  

Maybe ZPrevious could be used for further optimization. I need to test. Tested. It is not great use for restoring graphics setting after more than 1 command that changes the graph settings.


For curiosity here's the good old straightforward but larger code:
Code: [Select]
:0→Xmin:94→Xmax
:0→Ymin:62→Ymax
can be
:0→Xmin:1→ΔX
:0→Ymin:1→ΔY

Good use!
« Last Edit: June 09, 2010, 10:14:00 am by Galandros »
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Offline DJ Omnimaga

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Re: Optimized Routine: Set Up Friendly Graph Window
« Reply #1 on: May 30, 2010, 11:39:38 pm »
I still remember seeing this before. That was interesting. Did it work on every calc OSes, though? I think I recall this failed before when I tried the :0→Xmin:1→ΔX stuff

That said, for the Y part, I don't really like this much, though, because generally people will want Y coordinates to look similar to if they used Pxl-On or Text(). I prefer having -62->Ymin:0->Ymax instead of 0->Ymin:-62->Ymax. I think it might cause programs to grow in file size, though, so if you really want to optimize your programs, you might have to adapt to the inverted coordinates instead
« Last Edit: May 30, 2010, 11:42:45 pm by DJ Omnimaga »
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Offline Builderboy

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Re: Optimized Routine: Set Up Friendly Graph Window
« Reply #2 on: May 31, 2010, 12:07:45 am »
Quote from: DJ Omnimaga on May 30, 2010, 11:39:38 pm
-62->Ymin:0->Ymax

Thats the window setting i use as well ^^ I find its most useful when mixing window based drawing and screen based drawing.  haha i remember when i used to use the Integer window setting, and i had to do math in order to draw accurately ;D
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Offline jsj795

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Re: Optimized Routine: Set Up Friendly Graph Window
« Reply #3 on: May 31, 2010, 12:51:12 am »
I usually use 0->Ymin:62->Ymax... Nowadays, some of the inverted coordinates comes natural and the harder ones I just need to subtract the number from 62...  I don't like working with negatives too much :P
« Last Edit: May 31, 2010, 12:51:40 am by jsj795 »
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Offline Galandros

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Re: Optimized Routine: Set Up Friendly Graph Window
« Reply #4 on: May 31, 2010, 03:27:28 am »
I use the 2 setups you are discussing. It just depends on the program I use. The conversion on Y for the -62->Ymin:0->Ymax  is just -Y.
For the other you do something like 62-Y.

And in movement/physics things you have the change the code accordingly to the setup.
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Offline Deep Toaster

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Re: Optimized Routine: Set Up Friendly Graph Window
« Reply #5 on: May 31, 2010, 11:51:31 am »
Code: [Select]
:ZStandard
:84→Xmin
:-72→Ymax
:ZInteger
Wow, that is optimized. Thanks.

Quote from: Builderboy on May 31, 2010, 12:07:45 am
Thats the window setting i use as well ^^ I find its most useful when mixing window based drawing and screen based drawing.  haha i remember when i used to use the Integer window setting, and i had to do math in order to draw accurately ;D

Me too. And before that, I just left the window in ZStandard and tried to work with the decimals. It was horrible.

EDIT: Especially for a game like checkers.
« Last Edit: May 31, 2010, 12:36:00 pm by Deep Thought »
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Offline DJ Omnimaga

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Re: Optimized Routine: Set Up Friendly Graph Window
« Reply #6 on: May 31, 2010, 12:29:33 pm »
Indeed. Some of my old games use Zstandard but only because everything involving drawing doesn't need much pixel precision. Still hectic at times, though.
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Offline calcdude84se

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Re: Optimized Routine: Set Up Friendly Graph Window
« Reply #7 on: June 01, 2010, 05:36:38 pm »
What's worse and what I did until I figured out how to use GDB's is to use the window as is. That code got messy quickly.
A pixel Y,X (such as used with Pxl-On) becomes Xmin+^X*X,Ymax-^Y*Y (yes I'm using carets for deltas) and conversion back is even uglier, with rounding involved. *shudder*
But then I learned about GDB's, and I became happier. :)
Also, nice code, Galandros
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Offline DJ Omnimaga

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Re: Optimized Routine: Set Up Friendly Graph Window
« Reply #8 on: June 01, 2010, 05:48:05 pm »
I assume GDBs stored all graph equations and window settings, right?
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Offline calcdude84se

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Re: Optimized Routine: Set Up Friendly Graph Window
« Reply #9 on: June 01, 2010, 06:14:01 pm »
Yeah, they do, which can be useful if you need to draw an equation for some reason...
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Re: Optimized Routine: Set Up Friendly Graph Window
« Reply #10 on: June 01, 2010, 07:58:43 pm »
cool, thanks for the info. Are they generally smaller too?
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Offline ztrumpet

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Re: Optimized Routine: Set Up Friendly Graph Window
« Reply #11 on: June 01, 2010, 08:05:12 pm »
Quote from: DJ Omnimaga on June 01, 2010, 07:58:43 pm
cool, thanks for the info. Are they generally smaller too?
They can be, just remember it's one more thing (like a pic) that must be included with your program. =/
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Offline DJ Omnimaga

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Re: Optimized Routine: Set Up Friendly Graph Window
« Reply #12 on: June 01, 2010, 09:03:15 pm »
Yeah true :S
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Offline Galandros

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Re: Optimized Routine: Set Up Friendly Graph Window
« Reply #13 on: June 02, 2010, 01:57:02 pm »
Quote from: DJ Omnimaga on May 31, 2010, 12:29:33 pm
Indeed. Some of my old games use Zstandard but only because everything involving drawing doesn't need much pixel precision. Still hectic at times, though.
Quote from: calcdude84se on June 01, 2010, 05:36:38 pm
A pixel Y,X (such as used with Pxl-On) becomes Xmin+^X*X,Ymax-^Y*Y (yes I'm using carets for deltas) and conversion back is even uglier, with rounding involved. *shudder*
In my early TI-BASIC coding I tried to code a program to convert any graphs setting to another. I will give it a try again but I believe there is rounding issues that throw away the use. The idea is to ease convert old code to the code in Friendly Graphics Settings.

I shared exactly to make everyone save a few bytes (not that important but in TI-BASIC we turn many times in optimization freaks) and also for the curiosity of existing a even smaller alternative. ^^ I also like the alternative movement code seen in TI|BD.
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Offline Galandros

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Re: Optimized Routine: Set Up Friendly Graph Window
« Reply #14 on: June 09, 2010, 10:15:11 am »
Quote from: Galandros on May 30, 2010, 03:37:58 pm
Maybe ZPrevious could be used for further optimization.
Checked. It is not great use for restoring graphics setting after more than 1 command that changes the graph settings.

It can be used during your mathematical equations view, though.
« Last Edit: June 09, 2010, 10:15:28 am by Galandros »
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