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Drawing on a portion of image By taking XY coordinate. RRS feed

  • Question

  • User-2030397957 posted

    Hi all forum Member,

    I am currently working on a web application, Where I got the requirement to draw a rectrangle by taking xy coordinate over a map. Can Any body help me with example..

    Thank you

    Tuesday, March 31, 2009 3:56 AM

Answers

  • User401360897 posted

     You can Do with GDI+

    But i refer to use

    http://silverlight.net/

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Tuesday, March 31, 2009 5:05 AM
  • User527778624 posted

    Hi,

    Once you got the xy coord.s , Draw an absolute positioned <div> with transparent background:

    --------------------------

    <div style="; z-index: 101; top: [ycoord]; left: [xcoord]; width: 100px; height: 100px; filter: alpha(opacity=0); border: solid 1px blue;">  </div>

    Try this.

    ----------------------------

    Happy Coding.

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Tuesday, March 31, 2009 5:22 AM
  • User-1597315603 posted

    Hi 
     
    if you need to draw a rectrangle on the page, I would like to suggest you try to use JavaScript.
     
    Please check the following links, which provide solutions for this:
     
    http://www.c-point.com/javascript_vector_draw.htm
    http://www.walterzorn.com/jsgraphics/jsgraphics_e.htm
     
    Thanks

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Friday, April 3, 2009 5:57 AM

All replies

  • User401360897 posted

     You can Do with GDI+

    But i refer to use

    http://silverlight.net/

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Tuesday, March 31, 2009 5:05 AM
  • User527778624 posted

    Hi,

    Once you got the xy coord.s , Draw an absolute positioned <div> with transparent background:

    --------------------------

    <div style="; z-index: 101; top: [ycoord]; left: [xcoord]; width: 100px; height: 100px; filter: alpha(opacity=0); border: solid 1px blue;">  </div>

    Try this.

    ----------------------------

    Happy Coding.

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Tuesday, March 31, 2009 5:22 AM
  • User-1597315603 posted

    Hi 
     
    if you need to draw a rectrangle on the page, I would like to suggest you try to use JavaScript.
     
    Please check the following links, which provide solutions for this:
     
    http://www.c-point.com/javascript_vector_draw.htm
    http://www.walterzorn.com/jsgraphics/jsgraphics_e.htm
     
    Thanks

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Friday, April 3, 2009 5:57 AM
  • User1609758140 posted

    Raju,

    I tried this snippet of code.  Everything works apart from "filter: alpha(opacity=0);". 

    Error message says this is not a valid CSS property.  How did you get this to work?

    Paul

    Monday, August 17, 2009 7:24 PM