Drawing on a portion of image By taking XY coordinate.

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

Answer 1

User401360897 posted

 You can Do with GDI+

But i refer to use

http://silverlight.net/

Answer 2

User527778624 posted

Hi,

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

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

Try this.

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Happy Coding.

Answer 3

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

Answer 4

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