How to draw a symbol in plan view?

[Anonymous]

I saw a plugin of revit for the purpose of showing a floating grid symbol that consistently stays on the edge of the window.

This only works in plan view.

Does anyone know how to implement such a function?

[recepagah12]

From what I understood, you want to create grid on the edge of the windows. That's feasible. First, learn how to create a grid, then learn how to get the edge of the window. Then compile them in a single code. You can access samples from Revit SDK  Samples.

Good Luck,

Recep.

[Anonymous]

Thanks for your reply.

Sorry, it's not about creating grid through API. The grid already exists, but the symbol of grid head often out of sight when zooming in on the plan view.

So I want to put an individual symbol on the edge of the window to identify the grid when it's head out of window.

This symbol's position will follow the grid. 

The problem is that I don't know how to use API to implement that symbol.