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Map does not display all tiles (iPad only) RRS feed

Answers

  • There are several possibilities. The first on would be that there is some CSS in your app causing some issues. Looking at your site in a standard desktop browser I see that the fly outs in the navigation bar (road/brids eye selections) are rendered odd (all content is centered). This would leave me to believe you have some CSS overriding the built in CSS in the map which could be part of the issue.

    Try using the documented doctype and metatag's: https://msdn.microsoft.com/en-us/library/gg427624.aspx

    Another idea, is try and set the map divs position to relative rather than absolute. This is unlikely to be the cause but worth a try.

    Possibly a scaling issue due to screen resolution. Try setting your viewport or setting the maps to use High DPI tiles: https://blogs.bing.com/maps/2015/02/12/high-ppi-maps-now-available-in-the-bing-maps-ajax-control/

    The Bing Maps control works fine on the ipad generally and is used by a number of other apps.


    http://rbrundritt.wordpress.com

    Monday, June 1, 2015 10:53 PM
  • This looks different than what you first described. This appears to be an error. I'll let the right team know so they cn fix this.

    http://rbrundritt.wordpress.com

    Monday, June 8, 2015 4:49 PM
  • This issue was fixed internally and is currently undergoing testing before being released to production. This should be fixed in production soon.

    http://rbrundritt.wordpress.com

    Friday, June 12, 2015 5:54 PM
  • This should now be fixed.

    http://rbrundritt.wordpress.com

    Tuesday, June 16, 2015 5:51 PM

All replies

  • There are several possibilities. The first on would be that there is some CSS in your app causing some issues. Looking at your site in a standard desktop browser I see that the fly outs in the navigation bar (road/brids eye selections) are rendered odd (all content is centered). This would leave me to believe you have some CSS overriding the built in CSS in the map which could be part of the issue.

    Try using the documented doctype and metatag's: https://msdn.microsoft.com/en-us/library/gg427624.aspx

    Another idea, is try and set the map divs position to relative rather than absolute. This is unlikely to be the cause but worth a try.

    Possibly a scaling issue due to screen resolution. Try setting your viewport or setting the maps to use High DPI tiles: https://blogs.bing.com/maps/2015/02/12/high-ppi-maps-now-available-in-the-bing-maps-ajax-control/

    The Bing Maps control works fine on the ipad generally and is used by a number of other apps.


    http://rbrundritt.wordpress.com

    Monday, June 1, 2015 10:53 PM
  • Ricky,

    Thanks vey much for your help.

    It was not intended to apply our own CSS within the map, but there is some styling inherited, e.g. from the body tag.  I shall look further into this and the map div positioning. The only positioning requirement we have is that it works really well to overlay our form over the Bing navigation bar while controlling the custom navigation.

    Switching from HTML5 to XHTML would, I think, cause other problems on our map page.  HTML5 seems fine on desktop, Android and iPhone; it would be strange if it caused a problem on iPad but nothing else.

    Thanks for the link to the DPI scaling blog post.  I shall add the enableHighDpi setting to our JS.

    By the way, I had RSS subscriptions to the Bing Maps and Webmaster blogs, but found this morning that they had had no new posts since last year.  The URLs had changed without my knowledge.  I have now re-subscribed.

    I was interested to see your post "Migrating My Map from Google to Bing" (not yet read) as we went through this exercise a few months ago - we used Google Custom Maps for directions to matches until the new version came out last November, and switched to Bing simply because it was no longer possible in Google My Maps to right-click on one of our map pins to get directions.

    You say "The Bing Maps control works fine on the ipad generally".  It would never have occurred to me to be otherwise - I thought I was dealing with "something funny" about this particular ipad.

    I shall post back to report progress.

    JPL
    Tuesday, June 2, 2015 10:25 AM
  • In the past year the marketing team moved the backend of the blog to Wordpress which changed and broke a few things on the blog.

    http://rbrundritt.wordpress.com

    Tuesday, June 2, 2015 6:53 PM
  • Ricky,

    Before today, I had seen this problem only on our Chairman's iPad.  This is no longer the case.

    I tried this Bing Maps link:

    https://www.bing.com/maps/?mkt=en-gb&cp=51.771748~-1.267022&lvl=15&sty=s

    And it displayed this map, which suffers from a variation of the original fault (Road tiles shown rather than plain background):

    Each URL I have tried on my Windows 7 PC consistently produces the same pattern of Road / OS Map tiles, and the same pattern is also shown in all the browsers I have tried (IE, Firefox and Chrome).  The same pattern is shown when I try this URL on a different Windows 7 PC - the fault must be with the service rather than on the client device.  I have tried a few map URLs and all suffer from the same problem.

    (Does Bing Maps use its own cache independent of the browser?  If so, how may it be cleared?)

    It appears that this is a fault in the Bing Maps service itself, not an error in our implementation, and it has become much worse today - the OS Map view is longer usable.

    JPL




    • Edited by JPL5780 Monday, June 8, 2015 10:01 AM
    Monday, June 8, 2015 9:18 AM
  • This looks different than what you first described. This appears to be an error. I'll let the right team know so they cn fix this.

    http://rbrundritt.wordpress.com

    Monday, June 8, 2015 4:49 PM
  • Different, yes, but the two have strong similarities:

    - OS Map with random tiles missing entirely
    - OS Map with random tiles displayed in Road style 

    JPL

    Monday, June 8, 2015 5:20 PM
  • Each day this week I've been trying the direct link in the 8 June post above, and the results are interesting.  On Monday afternoon the problem appeared to have been fixed - all tiles correctly OS Map style - but no: it was just a random variation.  Each day the pattern is different, but the problem remains.  This morning the entire initial area of the map was in Road style, although scrolling showed OS Map style all around it.  C'mon, Microsoft, please fix this.
    Friday, June 12, 2015 8:51 AM
  • This issue was fixed internally and is currently undergoing testing before being released to production. This should be fixed in production soon.

    http://rbrundritt.wordpress.com

    Friday, June 12, 2015 5:54 PM
  • Thanks, Ricky.
    Friday, June 12, 2015 10:42 PM
  • This should now be fixed.

    http://rbrundritt.wordpress.com

    Tuesday, June 16, 2015 5:51 PM
  • Ricky,

    Thanks for the update and for all your help in this case.

    I made some general tests and tried all the built in links in the cricket club websites, and had no errors at all.  It is indeed fixed.

    JPL

    Wednesday, June 17, 2015 8:28 AM