Extracting Y-values from coordinates. Csharp

[Cald]

Good Day,

I'm writing a c sharp program in visual studio for autocad designed to calculate an invert level at a place the user clicks, then inserts a Level_Arrow block stating that level at the point they clicked. My current problem is I need ask the user to click on a base point, and then I need to extract only the Y value of those coordinates for use in my calculations.  

Does anyone know a method that will allow me to extract that value from the coordinates?

Please note I've experience with Lisp but very little experience with C sharp, if the answer could be as simple as possible and well explained I would be grateful.

Thank you,

[_gile · Accepted solution]

Hi,

The Point3d structure has a Y property.

Assuming you get the user picked point with the Editor.GetPoint() method.

PromptPointResult ppr = ed.GetPoint("\nPick a point: ");
if (ppr.Status == PromptStatus.OK)
{
    Point3d pt = ppr.Value;
    double yCoord = pt.Y;
    // do your stuff with yCoord
}