extended Thiessen polygon

[RogierBusscher]

Hello,

I am trying to fill a rectangle with some points and create thiessen polygons based on these points. 

I tried using the 'create thiessen polygon (analysis)' tool, and it works fairly well, just not precisely what I want. 

The result that is generated is the pink area below, with the minumum x and y and maximum x coordinates working as the boundaries. (Somehow this doesn't happen with the maximum y).

However, I would like to fill the entire blue space.

Does anyone have a suggestion how this can be done?

Thanks a lot. 

[JoeBorgione · Accepted solution]

Are you using the min x min y max x max y of the pink space or the blue space? Use the latter.  If that doesn't work, experiment with adjusting them until you get  what you want.

[RogierBusscher]

This is in fact the solution. When I turned the XY-extent (shapefile properties > Feature extent) settings to that of the blue rectangle the polygon turned out as I wanted to. 

Thanks a lot!