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Anonymous · #1 (**permalink**) 07-29-2004

I have a line in my map, who can i to know if the selection is a start or end of the line?

code of the line:

Code:

 Dim Line As MapPoint.Shape
        Dim olocation1, olocation2 As MapPoint.Location
        olocation1 = mapa.ActiveMap.GetLocation(iPushpin.pLatitud, iPushpin.pLongitud)
        olocation2 = mapa.ActiveMap.GetLocation(fPushpin.pLatitud, fPushpin.pLongitud)
        Line = mapa.ActiveMap.Shapes.AddLine(BeginLocation:=olocation1, EndLocation:=olocation2)


        Line.Line.Weight = 1
        ' Pixel
        Line.Line.ForeColor = RGB(color, color, color)

THANKSSSSSS!!!!!!!!!

clavijo · #2 (**permalink**) 07-30-2004

No te acabo de entender la pregunta, así que si me la haces en español intentaré ayudarte, ¿vale?

Saludos.

jdwhytie · #3 (**permalink**) 07-30-2004

I'm not sure I understand your question really. At what point are you trying to find out whether the point is the start or end of your line?

It seems pretty obvious in your code that olocation1 is your start, is it that you are trying to click on the point and find out? If that's the case then you could put something in the OnClick event to see if the selected location is olocation1.

Anonymous · #4 (**permalink**) 08-03-2004

A ver dibuja una linea entre todos los pushpin de la ruta, entonces quiero que cuando el usuario clickee sobre el inicio o final de cada linea salga mi menu contextual, me explico.

inicialmente doy la posibilidad de ver propiedades en un pushpin dado (velocidad y todo eso), pero ahora tengo que dibujar la ruta con lineas, no con pushpin, y seguir dando la posibilidad de ver propiedades de los puntos donde "deberia" haber un pushpin

Espero que me haya explicado mejor

Gracias

Anonymous · #5 (**permalink**) 08-03-2004

Who compare the location of the start of line and the point of the click

**Winwaed** · #6 (**permalink**) 08-03-2004

Do you mean you have location S and location E, and given location P, is P closer to S or E?

If so, a Location object has a DistanceTo() method that can be used to find the closest.

ie. in C++ :

Code:

if ( S.DistanceTo(P) < E.DistanceTo(P) )
{
// P is closer to S than E
}

This is pretty simple, and it is possible that P isn't even anywhere near the line, so a more algebraic solution could be derived using the equation for a line. This would then be able to tell if the point is on the line, and if not how far away it is.

Does this help?

Richard

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Find a start of line

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