how to get zoom scale? how to compute it for different polyline?

[Maciej Skorczewski]

hi

i have another problem whit zoom and goto option.

My map have 1500 streets. Now i write a search engine of this street. 
When you click on search results (street name) it should make goto 
action to show this street on map .

The problem is: How to compute the zoom scale , (the streets are in 
different size) the zoom scale should show street on screen in one piece 
.  Solution whit CONST zoom scale (ex. 2000) can't be use. I want 
compute zoom scale and copy it into database.


Have you make it?


-- 
Maciej Skorczewski