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suamikim · #1 (**permalink**) 08-16-2006

Hi,

i'm working with C# and the AxMapPointControl and want to realize the following problem:

I draw several lines on my map at a stretch. After the drawing i add 2 Pushpins to the start- and end-position.

Now i want to Zoom-In the wohl drawing (all Lines and the Start- and Stop-Pushpin). Unfortunately i don't know, how to do this. I've tried a little with the SelectedArea.SelectArea(...)-Method, but don't get pretty far with it.

Hope, that anybody can help me!

mike

ps.: Wehre can i find a good help for the MapPoint Active-X-Control? I've searched the MSDN but can't find anything helpfull.

suamikim · #2 (**permalink**) 08-16-2006

Ok, after a little trial & error i've managed to select the area i want, but i don't know how to zoom into that area.

To help you understand, what i want to do, i've made a little screenshot, of my program, after the painting an selecting:

I know that the selected area is a little small, but it's just a test and it will be larger in real.

So how can i zoom into that selected area programmatically?

mike

edit:

Here is a little cut-out from my code:

Code:

top = minY - 10;
height = Math.Max(20, maxY - minY + 20);
left = minX - 10;
width = Math.Max(20, maxX - minX + 20);

activeMap.SelectedArea.SelectArea(top, left, width, height);

**Wilfried** · #3 (**permalink**) 08-16-2006

Hi,

If you want to zoom to the whole fleet of pushpins you have then it is very simple, just like this:

Code:

            object o = "My Pushpins";
            MapPoint.DataSet ds = MP.ActiveMap.DataSets.get_Item(ref o);
            ds.ZoomTo();

if You want to select a part of your pushpins, then you can draw a shape, select the shape, query all pushpins in it, move the selection to another dataset, and also then use ZoomTo() to this dataset. But at this moment the pushpins are removed from the "My Pushpins" dataset.

If the latter is what you want then I puzzle some code as example if you wants.

Maybe there are other solutions as whell. this is the one from the top of my head

**Wilfried** · #4 (**permalink**) 08-16-2006

Hi,

Just thingking on something. To zoom to your area is probably very simple. Try this (not tested so could be syntax or other wierd errors in it):

Code:

top = minY - 10;
height = Math.Max(20, maxY - minY + 20);
left = minX - 10;
width = Math.Max(20, maxX - minX + 20);
SelectedArea area = activeMap.SelectedArea.SelectArea(top, left, width, height);
Location loc = area.Location;
loc.Goto();

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