Processing 1.0 _ALPHA_ - Read files outside the sketch/data folder

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   Read files outside the sketch/data folder

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Topic: Read files outside the sketch/data folder (Read 463 times)

mkn

Read files outside the sketch/data folder
« on: Dec 11^th, 2004, 6:48pm »

Hi all,

How do I access files outside the data folder? I'm aware that applets needs signing, but it should work when running the programs inside Processing, right?

I've managed to access subfolders within the data folder, but finding the way out to for example the root of disk d: seems problematic.

Thanks in advance!

Mkn.

Bork bork bork

mkn

Re: Read files outside the sketch/data folder
« Reply #1 on: Dec 12^th, 2004, 7:08pm »

One reason that I want to get out of the sketch folder is that I've got some amount of media stored elsewhere on disk that I want to access when trying out stuff in Processing, without necessarily having to make a multitude of copies in every sketches data folder.

Yours all!
Mkn.

Bork bork bork

st33d

Re: Read files outside the sketch/data folder
« Reply #2 on: Dec 12^th, 2004, 9:29pm »

Saving outside works for me. All I have to do is make sure I use the full URL. Here's the code from the reference section saving to my other hardrive partition.

Code:

String words = "apple bear cat dog";
String list[] = splitStrings(words);

// now write the strings to a file, each on a separate line
saveStrings("D:nouns.txt", list);

I answered this question earlier this week also.

http://processing.org/discourse/yabb/board_Syntax_action_displa_y_num_1102261880.html

http://processing.org/discourse/yabb/board_Syntax_action_displa_y_num_1102443774.html

Hope this answers your question.

I could murder a pint.

mkn

Re: Read files outside the sketch/data folder
« Reply #3 on: Dec 13^th, 2004, 11:03am »

Thanks, I've read the posts, but I still cant get reading images on hard disk outside the processing environment to work. For example:
Code:

BImage testImg;
testImg = loadImage("d:/test.jpg");

So I figured that maybe loadImage has to have relative paths finding their way out of the sketch/data folder, but no matter what combinations of "..":s, "/":s or "\":s, still no go.

Bork bork bork

st33d

Re: Read files outside the sketch/data folder
« Reply #4 on: Dec 13^th, 2004, 7:32pm »

Whoops, you're right. That's bloody annoying really. It works fine with loadStrings, I can even download a html off of the web into a string but I can't even go through a shortcut folder to a different drive to load an image (which I thought should work seeing as in Linux, folder location on a drive is shown to be an abstraction). Tried the Java method of importing an image but it's not compatible with BImage and BImage overides any reference to Java's Image.

Makes life a bit poo really.

I could murder a pint.

fjen

Re: Read files outside the sketch/data folder
« Reply #5 on: Dec 14^th, 2004, 12:03am »

Code:

// -- file ImageLoader.java -- goes into sketch's code-folder
// fjenett, 2004, www.florianjenett.de
import java.awt.*;
import java.net.*;

public class ImageLoader
{
BApplet parent;

ImageLoader ( BApplet _ba )
{
this.parent = _ba;
}

Image loadImage ( String image_file )
{
try{
MediaTracker tracker = new MediaTracker(this.parent);
URL imgURL = new URL(image_file);
Image img = null;
if ( !this.parent.online() ) img = Toolkit.getDefaultToolkit().getImage( imgURL );
else this.parent.getImage( imgURL );
tracker.addImage(img, 0);
tracker.waitForAll();
return img;
} catch (Exception e) { System.out.println("Error: "+e.toString()); }
return null;
}

}

Code:

// testsketch ...
BImage urlImage;
ImageLoader il;

void setup()
{
size(200,200);
il = new ImageLoader( this );
}

void loop()
{
if (urlImage == null) {
//urlImage = new BImage( il.loadImage("file:/Users/fjenett/Desktop/amazonHTML.gif") );
urlImage = new BImage( il.loadImage("http://processing.org/images/processing.gif") );
if (urlImage != null) image(urlImage, 0,0);
}
}

it's not as direct as BImage() but it works outside the sketchfolder ... i know there are better ways to do this, but i had this already sitting in my sketchbook ...

make sure to check the BImage agains null (your_bimage != null) before using it!

/F

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