VisualisationLayer Large Data Point

2 posts, 0 answers
  1. Bezkresny
    Bezkresny avatar
    1 posts
    Member since:
    Mar 2019

    Posted 13 Mar Link to this post

    hello i have large List of Points with WKT Geometry.How can i load fast,display and selected items?

    I tried AsyncSqlGeospatialDataReader, but it is very slow.I cant move map until loads all points....

    I display point by itemtemplate <ellipse ...

    How can i load faster, and can selectionItems?

  2. Dinko
    Admin
    Dinko avatar
    853 posts

    Posted 18 Mar Link to this post

    Hi Bezkresny,

    Loading a large number of shapes indeed could hit the loading performance of the RadMap. Another approach when loading a big number of shapes is to use the virtualization feature of the Visualization Layer. It will allow you to load the shapes in chunks depending on the user action. You can also check our Async Shape File Read With Virtualization demo in out WPF Controls Demo application. This example demonstrates how to load a large shape file asynchronously leaving the UI responsive while the shapes are virtualized.

    Regards,
    Dinko
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