Finding Streets by coordinates

Dear specialists,
I have coordinates (wsg84) and want to get the Adress (Town, Street and so on). How is it possible with MapPoint? I know how to get a location object. But how can I find out Town, Street from this object?

Any help is welcome
Best regards
Peter

Hi Peter,

Look up the ObjectFromPoint method.

Mike Mattys

Hi Mike,
Thank you for quick answer and the Tip. I will try to use it and then we will see what will happen.

Best regards
Peter :p

Note that ObjectsFromPoint takes screen coordinates, not latitudes and longitudes.

The process you might want to follow is:

- Form a Location with your desired lat/lon
- Move to that location
- Find the screen X,Y coordinates for that location
- Call ObjectsFromPoint for that X,Y.

In C++, you might call the following code. This is mostly from my head and hasn't been tested. Your class names may also differ slightly.


CString GetStreetName(double dLat, double dLon, double dAlt)
{
CMPMap thisMap;
CMPLocation locTest;
CMPLocation locTemp;
CMPFindResults mpFindResults;
CMPStreetAddress saddrLocation;
long lXPos;
long lYPos;
CString strResult = _T(""); // default
int nFound;
VARIANT vItem;

thisMap = m_mapMain.GetActiveMap();
locTest = thisMap.GetLocation(dLat, dLon, dAlt);
locTest.GoTo();
lXPos = thisMap.LocationToX(locTest);
lYPos = thisMap.LocationToY(locTest);

if ((lXPos != -1) && (lYPos != -1)) {
mpFindResults = thisMap.ObjectsFromPoint(lXPos, lYPos);

nFound = mpFindResults.GetCount();

if (nFound > 0) {
locTemp = mpFindResults.GetItem(&vItem);

saddrLocation = locTemp.GetStreetAddress();

if (saddrLocation.m_lpDispatch != NULL) {
strResult = saddrLocation.GetValue();
}
}
}

return strResult;
}


Cheers,

Dave

Hi Dave,
THank you. What you wrote is exectly what I do (in VB6). Is there a possibility to get the same result without displaing the chart? That means that I want to have a small software with input of the coordinates and output the adresse (city, street and so on) and no chart is shown.

Best regards
Peter:roll:

Hi,

Yes, you can set the active map's Visible to false. it also will speed up.