words doesn't show up, goes into infinite loop when integrated in an iPhone app and tested on ipod touch. about d3-cloud HOT 14 CLOSED

Do you have some example code or a page that reproduces the problem?

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Simply try navigating to the following link via mobile safari on iPhone
device, you will get an idea of my issue:

http://www.jasondavies.com/wordcloud/#http%3A%2F%2Fsearch.twitter.com%2Fsearch.json%3Frpp%3D100%26q%3D%7Bword%7D=cloud

Thank you.

On Tue, Mar 12, 2013 at 7:26 PM, Jason Davies [email protected]:

Do you have some example code or a page that reproduces the problem?

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/13#issuecomment-14776194
.

Mafaz Abdul Rouf
( www.about.me/mafazrouf )

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Works fine for me in a simulator under iOS 6.1. Which version of iOS/Safari are you using?

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I am using iOS 6.0 safari. It does work perfectly in the simulator for me
too, the problem comes when it is loaded into the device. I am using iPod
touch for testing.

On Tue, Mar 12, 2013 at 7:49 PM, Jason Davies [email protected]:

Works fine for me in a simulator under iOS 6.1. Which version of
iOS/Safari are you using?

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/13#issuecomment-14777553
.

Mafaz Abdul Rouf
( www.about.me/mafazrouf )

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I’ll try simulating iOS 6.0 and see if that makes a difference. Did you notice any errors being logged to the console?

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No errors logged and works smoothly on iOS 6.0 simulator but when rendered
to the device, it simply doesn't show up. And when the first mentioned
function is commented out, the words become visible but overlaps each other
making it illegible.

On Tue, Mar 12, 2013 at 7:56 PM, Jason Davies [email protected]:

I’ll try simulating iOS 6.0 and see if that makes a difference. Did you
notice any errors being logged to the console?

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/13#issuecomment-14777916
.

Mafaz Abdul Rouf
( www.about.me/mafazrouf )

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Can you confirm what version of iOS the device is running? iOS 6.0 too?

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Yes, iOS 6.0 itself.

-Mafaz Rouf
-typed with my opposable thumbs!
On Mar 12, 2013 8:01 PM, "Jason Davies" [email protected] wrote:

Can you confirm what version of iOS the device is running? iOS 6.0 too?

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/13#issuecomment-14778193
.

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It’s possible that the device is simply too slow as it’s fairly resource intensive.

Can you try this simple word cloud on your device for comparison? http://www.jasondavies.com/wordcloud/simple.html

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Had thought that could be the reason, but couldn't confirm. Will test on an
i Phone asap.

Thanks alot for your instantaneous response. :)

-Mafaz Rouf
-typed with my opposable thumbs!
On Mar 12, 2013 8:08 PM, "Jason Davies" [email protected] wrote:

It’s possible that the device is simply too slow as it’s fairly resource
intensive.

Can you try this simple word cloud on your device for comparison?
http://www.jasondavies.com/wordcloud/simple.html

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/13#issuecomment-14778570
.

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Tried the simple link on my device and the same problem persists, only one
word is shown.

-Mafaz Rouf
-typed with my opposable thumbs!
On Mar 12, 2013 8:08 PM, "Jason Davies" [email protected] wrote:

It’s possible that the device is simply too slow as it’s fairly resource
intensive.

Can you try this simple word cloud on your device for comparison?
http://www.jasondavies.com/wordcloud/simple.html

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/13#issuecomment-14778570
.

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I had a similar problem in Firefox 20.0, where the break in the while loop in the place function is never reached. As a very quick and ugly fix, a counter and an extra condition worked for me.

Note.: As of Firefox 22.0 I didn't experience this issue anymore

function place(board, tag, bounds) {
    var perimeter = [{x: 0, y: 0}, {x: size[0], y: size[1]}],
          startX = tag.x,
          startY = tag.y,
          maxDelta = Math.sqrt(size[0] * size[0] + size[1] * size[1]),
          s = spiral(size),
          dt = Math.random() < .5 ? 1 : -1,
          t = -dt,
          dxdy,
          dx,
          dy;

    // Ugly hack to prevent ending up in an infinite loop in Firefox
    counter = 0;
    while (dxdy = s(t += dt)) {
      dx = ~~dxdy[0];
      dy = ~~dxdy[1];

      if (Math.min(dx, dy) > maxDelta || counter > 100000) break;
      counter++;

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Unable to reproduce on iPad/Safari/iOS 6.0, so closing for now. I tested the simple demo.

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I encountered a similar issue whereby the place function goes into an infinite loop.
I have a SPA, one of my views contains a WordCloud instance. If I allow the WordCloud to finish loading it works just fine. However, if I navigate away from the view before the WordCloud finishes rendering, it goes into an infinite loop and crashes the browser.

EDIT:
Narrowed it down to the size variable containing a less than 1 value.

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