Shapefiles zoom performance

4 posts, 0 answers
  1. Chris May
    Chris May avatar
    31 posts
    Member since:
    Nov 2009

    Posted 14 Jun 2011 Link to this post

    I'm looking at some different map controls to show outlines of states and then have the user zoom in on a state to see the counties.

    In the example with shapefiles, this is being done, but the zoom performance is very poor.  I tried in FF4 and IE9.  Is this the expected behavior? 
  2. Andrey
    Admin
    Andrey avatar
    1681 posts

    Posted 17 Jun 2011 Link to this post

    Hello Chris May,

    Zooming performance completely depends on the complexity of the shape files (or shape objects) which are in use. We've made several enhancements which significantly decrease zooming time for complex shapes. They are available in the latest internal build and will be included into the 2011.Q2 release.

    Regards,
    Andrey Murzov
    the Telerik team
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  4. Eric
    Eric avatar
    1 posts
    Member since:
    Jun 2010

    Posted 13 Oct 2011 Link to this post

    Do you have optimized shapefiles that are less complex?  I am using shapefiles from the Census Bureau and the performance when zooming is very poor.

    Thanks
  5. Andrey
    Admin
    Andrey avatar
    1681 posts

    Posted 18 Oct 2011 Link to this post

    Hello Eric,

    Yes, we use simplified version of shape files with decreased number of points in shapes. You might try to simplify your shape-files for improving the performance with this online tool:
    http://mapshaper.com/test/demo.html

    Regards,
    Andrey Murzov
    the Telerik team

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