Hi All,
PD Noob here, but really enjoying playing with it so far.
The overall goal for my first project is to be able to convert playstation 2 controller signals into midi..to control Ableton Live. I have the controller hooked up...receiving signals using gripd, and I will look into outputting midi afterwhile...but something I'm trying to do now is learn the array/graph functions.

I have the joystick axis' going to number objects, and I would like to display them real time in a box...array seems to only be for linear data and not point data. I can't figure out how to send an X and Y coordinate to a graph or something.

example....

[; array1 X 50] [; array1 Y 50]

array1
_____________
| |
| |
| |
| X |
| |
| |
|_____________|

Any thoughts?
Any thoughts on where I can get some more thorough instruction on the graph, canvas, and array objects? (the reference help objects don't seem complete)...

Thanks in advance!
AltReality

in the top left or right hand of your pd window, there is a help menu.

browser->2.control.examples->15.array and 16.more-arrays

I have looked at both of those options, but they don't seem complete...is that all there is to the array objects?

Is there any way to do what I was talking about with plotting a single point on the array? (or graph?)

Where is the information regarding graphs?

a graph is just a box to put an array in.

yeah, actually i have to admit that the array documentation is not as good as it could be.

easy way to change 1 point:

[x-position y-value(
|

or:

[pack f f]
|

or

[;
arrayname x-position y-value(

or

[y-value] [x-position]
| \
[tabwrite arrayname]

I don't quite understand...
What do you mean y-value? why are you not saying y-position?

When I set an array...I get a bunch of options that I don't see documented anywhere..
Save Contents
draw as points
polygon
bezier curve
in new graph
in last graph

secondly I don't really understand the canvas properties...
why is 0 running down the middle? how can I make 0 run along the bottom?

so many questions
Thanks for your help!
AltReality

<I don't quite understand...
What do you mean y-value? why are you not saying y-position?>

Because x-position is the index of the graph, so 0 1 2 3 4 5 6...and so on, and y-value will be the vertical value at a given index.

Think of an index as a slot in a table of data...so

0 = 30
1 = 32
2 = 14
3 = 53
etc

< secondly I don't really understand the canvas properties...
why is 0 running down the middle? how can I make 0 run along the bottom? >

because Arrays/Tables default to -1 1. You could change that to 0 1 of course and 0 would be at the bottom of the graph.

hope this clarifies things for you.

thanks boonier

Save Contents - when you save the patch, the contents of this array will also be saved.

draw as points - the array is drawn on the graph as a series of discrete points

polygon - the array is drawn on the graph as a continuous line joining each point to the next.

bezier curve - the array is drawn as a bezier curve (i assume...but have never actually used this function....does anyone know what it's good for?)

in new graph - this is default and i always use it.
in last graph - this is not default, and i don't know anyone who uses it.

Thanks for the explanations guys!

ok..so then what message do I use to change the vert numbering from -1 through 1 to something more like 0 through 500 ?

Is there something I should be using other than a table? I mean..I'm not trying to view a waveform with this, I need a simple X/Y coordinate system. ?

Thanks for helping everyone!
AltReality

>>what message do I use to change the vert numbering from -1 through 1 to something more like 0 through 500 ?

right click on the graph, and you should get two pop up boxes. one will be the array properties, which you mentioned before...

the other is the graph properties. you can change the y range in that, as well as the size of the graph, etc.