saving into text file....

General Discussion Other

meh007

in General Discussion • Other • 10 months ago

Hi Everyone

I am beginner and stuck in one problem.

Say:

float a,b; gives me 10 or may be more floating values per second between( ranging 1-1000) while running the program

and i want to convert these values into string so that i would be able to save in text file.

Well i was able to convert it using str() and save it using saveStrings("filename.txt",data);

But, how would i save all those floating values which come 10 per second.

I would be really thankful for answering my question

Replies(5)

timpulver

Re: saving into text file....

10 months ago

ArrayList<Float> data;
void setup(){
data = new ArrayList<Float>();
}
void draw(){}
void keyPressed(){
if(key == ' '){
Float f = new Float(random(0, 100));
data.add(f);
println(f + " added");
}
else if(key == 's'){
saveStrings("data.txt", getStringArray(data));
println("saving strings....");
}
}
String[] getStringArray(ArrayList<Float> list){
String[] stringa = new String[list.size()];
for(int i=0; i<list.size(); i++){
stringa[i] = String.valueOf(list.get(i));
}
return stringa;
}

Use SPACE to add data and 's' to write the textfile.

PhiLho

Re: saving into text file....

10 months ago

Alternatively, use a PrintWriter to write the data as it comes.

meh007

Re: saving into text file....

10 months ago

Hey

Thanks to both of u for answering my question

PrintWriter function made my work lot easier.

Now Im facing new challenge.

Im supposed to read the contents of my saved file which is in string and to be able to read it i

have to first convert those values into interger.

Well i know how to convert into interger for a single value, but i dont how to convert a whole list of 2 different string values

into integer and be able to read it. Actually i need those 2 string values to plot a graph.

Plz im waiting for a solution.....

PhiLho

Re: saving into text file....

10 months ago

No point in answering here since you started a new thread. Which is to avoid. Ie. don't ask the same question in two different places. It can duplicate the efforts of those trying to help.

meh007

Re: saving into text file....

10 months ago

Im so sorry about that. It wont happen again. So what do you suggest, do i delete the recent thread and stick to this one...

plz let me know..

Anyways, here's what im trying to do:

First of all I have these 2 files containing long lists of x coordinates on one and y-coordinates on the other, and they are saved in string format.

So what im trying to do is to read these files and be able to plot a graph using these coordinates using these x and y coordinates from each files at a same time.

void setup()

{

String[] x_pos= loadStrings("list_of_x-coordinates");

String[] y_pos= loadStrings("list_of_y-coordinates");

}

void draw()

{

for(int i=0;i< x_pos.length;i++)

{

int[] xx= int(split(x_pos[i]),",");

for(int=0;j<y_pos.length;j++)

{

int[] yy= int(split(y_pos[j]),",");

beginShape();

vertex(xx[i],yy[j]); //here it says error:array out of boundsExcpetion:1

vertex(xx[i+1],yy[j+1];

endShape(CLOSE);

}

I know there are lots of mistake in my code and may be this isnt the right way to do it. I think it would be easier if i save both coordinates one single file. Anyways I wont be able to complete the rest.

Would you please help me out

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