XML from internet

Programming Questions

alfredoro..

in Programming Questions • 2 years ago

How can I get the XML file from the internet?

xml = new XMLElement(this, "sites.xml"); //Sites is in /data ==> but now I want to get from http://mysite.com/sites.xml

Thanks.

Replies(12)

velvetkev..

Re: XML from internet

2 years ago

Should just be

xml= new XMLElement(this, "http://mysite.com/sites.xml");

Hope that helps.

ginsu777

Re: XML from LOCALHOST

2 years ago

What about if the XML is streaming over a localhost port? How do I pick out the value I want and then change the display as the value changes? data looks like this when I watch it go by in terminal:

Listening to localhost:8168, and I want to display HeartRate, Speed, and Cadence separately on the screen. I did this with Quartz Composer/Xcode, and now I want to build it in Processing. See Body.LinkSystems for examples

PhiLho

Re: XML from internet

2 years ago

What is the protocol used for streaming this data?

ginsu777

Re: XML from internet

2 years ago

What is the protocol used for streaming this data?

The protocol is IP network socket Here is a link describing quarqd http://opensource.quarq.us/quarqd/

PhiLho

Re: XML from internet

2 years ago

Looks like you need to connect with the Network library.

ginsu777

Re: XML from internet

2 years ago

numbers are being displayed in the debuf panel, bu tI have no idea what they are. I can see the data streaming by in another terminal window when I listen to th edata on localhost:8168 I can se the xml go by. The backgroud is gray and just seems to flicker when the code is run. Here is my code

import processing.net.*;
Client myClient;
int dataIn;
void setup() {
size(400, 400);
// Connect to the local machine at port 8168
// This example will not run if you haven't
// previously started a server on this port
myClient = new Client(this, "127.0.0.1", 8168);
}
void draw() {
if (myClient.available() > 0) {
dataIn = myClient.read();
}
background(dataIn);
println(dataIn);
}

PhiLho

Re: XML from internet

2 years ago

If you get XML, you have to parse it to get data out of it.
And you better use readString() instead...

ginsu777

Re: XML from internet

2 years ago

I know I have to parse the XML, I have done this project before using quartz composer, ut I cant even get the data to show up on the background in processing. I tried readString(). this doesn't work either - other than the data going by in the debug window

import processing.net.*;
Client c;
String data;
void setup() {
size(200, 200);
background(50);
fill(200);
c = new Client(this, "http://128.0.0.1", 8168); // Connect to server on port 80
c.write("GET / HTTP/1.0\r\n"); // Use the HTTP "GET" command to ask for a Web page
c.write("\r\n");
}
void draw() {
if (c.available() > 0) { // If there's incoming data from the client...
data = c.readString(); // ...then grab it and print it
println(data);
}
}

PhiLho

Re: XML from internet

2 years ago

" this doesn't work either - other than the data going by in the debug window"
If you see this data, it works, no? What " doesn't work"?

Come to think of it, you can't really parse that as XML, as it isn't a well formed XML file, there is no root node, etc.
If it comes as you show, you can just treat it as lines of data, and extract information from it, eg. with a regex since it looks regular enough to avoid pitfalls of using regexes with XML.

ginsu777

Re: XML from internet

2 years ago

I see the data on the debug window, but not on the background. Once I get to that stage, I can do regex or other parsing of the text. This is where I am stuck.

PhiLho

Re: XML from internet

2 years ago

Sorry, but I really don't understand what you mean by not seeing the data on the background.

luxxnatura

Re: XML from internet

2 years ago

@phi.lho I think he means he sees the data in the serial monitor (ie. "debug window") but not in the program window (drawing to screen).

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