hi
i am facing problem to select the shapes..i have shapefile containing shapes, i want to select the shapes and on double click i want to make in to zoom level...
here is my code for selecting shapes from shapefile::

error::: " boundBox.SetBounds(pxMin, pyMin, pxMax, pyMax, pzMin, pzMax);"

use of unassigned local variable pxMin, pyMin, pxMax, pyMax, pzMin, pzMax..	

 private int getSelectedShape(MapWinGIS.Shapefile shpfile2)
        {
                                   
            try
            {
                //int selectedShapes = new Array [];
                double pxMin, pxMax, pyMin, pyMax, pzMin, pzMax;
                MapWinGIS.Extents boundBox = new MapWinGIS.Extents();
                boundBox.SetBounds(pxMin, pyMin, pxMax, pyMax, pzMin, pzMax);
                            
                object selectedShapes = new object();
                if (!shpfile2.SelectShapes(boundBox, 0, MapWinGIS.SelectMode.INTERSECTION, ref selectedShapes))
                    return -1;
                int[] shapes = (int[])selectedShapes;
                //Clean up:
                boundBox = null;
                return shapes[0];
            }
            catch (Exception ex)
            {
                throw new Exception("Error in getSelectedShape: \n" + ex.ToString());
            }

        }

i have got this code though forum only have just modified bit....

plz reply...

[Edit:] Added code tags for better reading

Thanks



Edited 1 time(s). Last edit at 01/24/2011 04:26AM by pmeems.

You can use SetBounds but then you need to put in some values to indicate the bounding box you want to look in.

If you remove the SetBounds call you will be using the current extents of the map, that will give you some shapes.

But most likely you want to search a few pixels around the mouse click.
The you need to reproject your mouse coordinates to projection coordinates using PixelToProject(). Make a small rectangle of the point and use SetBounds to create a bounding box of it. Use that box in the SelectShapes() and you'll get the shape that in intersection with your rectangle that is based on the mouse click.

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Paul

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thanks..

can u do me a favor..plz send the code for the same coz unable to correct the code which i sent u..