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Milo · #1 (**permalink**) 10-28-2004

I am working on a tracking system and mappoint is my mapping software. I am using VB for my programming. At the moment i am doing geofencing and what i want to do is be able to get the lats and longs of a location where i click on the map...is this possible? thanks

John Meyer · #2 (**permalink**) 10-28-2004

Yes, here is alink to the article that will help you.

http://www.mp2kmag.com/articles.asp?ArticleID=13

EdB · #3 (**permalink**) 10-28-2004

You know, I don't think that's the answer he's looking for, though I could be wrong. If I'm not, I'm looking for the same answer.

The article points to a routine that is well known around here for extracting the lat/long from a pushpin. But what if you are just trying to react to a users click of a spot on the map, similar to what the location tool does.....as you move about on the map it reports the lat/long.

The closest thing I can get to that involves the user having to place a pushpin at the desired location, then push a VB button.....which then executes the above.......as long as the user doesn't change the name of the pushpin.

John Meyer · #4 (**permalink**) 10-28-2004

Look at the MouseDown or MouseUp event

Quote:

X ByVal Long. The X coordinate of the mouse pointer relative to the map window, in pixels.
Y ByVal Long. The Y coordinate of the mouse pointer relative to the map window, in pixels

In that event you will get the x/y of the mouse.

Now take a look at the XYToLocation method. Use it to take the x/y of the mouse and get a location object. At this point you should have the required stuff to use the calcpos function to return the lat/lon.

Also, there is another article that uses the same concept in .net to demonstrate the location sensor (uses the mousemove event)
http://www.mp2kmag.com/a66--location....mappoint.html

Anonymous · #5 (**permalink**) 10-28-2004

Where have you been all my life?

Milo · #6 (**permalink**) 10-29-2004

yeah this is what i have come to but i dont know how yo use the function calcpos. could you give an exapmle of how to use it? I keep getting an error, object variable or with block variable not set.

Regards,

John Meyer · #7 (**permalink**) 10-29-2004

Ok, Let me know if this works for you.

Visual Basic 6
Assumes you have the CalcPos Sub and the Function Arccos by Author Gilles Kohl in you project. http://www.mp2kmag.com/articles.asp?ArticleID=13
References: Microsoft MapPoint 11.0 Object Library(North America)
MapPointControl.ocx is on Form1
One Command Button (Command1)

Code:

Public ilat As Double
Public ilon As Double

Private Sub Form_Load()
Dim objmap As MapPointctl.Map
Set objmap = MappointControl1.NewMap(geoMapNorthAmerica)
End Sub


Private Sub Command1_Click()
Dim objmap As MapPointctl.Map
Set objmap = MappointControl1.ActiveMap
Dim objLoc As MapPointctl.Location
Dim objPushpin As MapPointctl.Pushpin
Set objLoc = objmap.FindResults("Seattle, WA")(1)
Set objPushpin = objmap.AddPushpin(objLoc, "My Test Pushpin")
CalcPos objmap, objPushpin.Location, ilat, ilon
MsgBox ilat & ", " & ilon
End Sub

Milo · #8 (**permalink**) 10-29-2004

excellent!! the only problem is, is sometimes i'm getting "The parameter is incorrect" Does this work all over the world?

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Long/Lat from click.

Long/Lat from click.

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