I am trying to use Turkey's map which was created before [here](http://upload.wikimedia.org/wikipedia/commons/f/f2/T%C3%BCrkiye.svg). 

I have changed the dimensions of svg element 

```
<svg xmlns="http://www.w3.org/2000/svg" xml:space="preserve" 
     width="800" 
     height="600"
     style="shape-rendering:geometricPrecision;
            text-rendering:geometricPrecision; 
            image-rendering:optimizeQuality; 
            fill-rule:evenodd; 
            clip-rule:evenodd" 
     viewBox="0 0 180 180">

```

When I change viewBox values to

```
viewBox="0 0 200 200"

```

the map is rendered in smaller size.

If I set the values to "0 0 10 10" image is not displayed. 

If I set the values to "0 0 50 50" a huge image comes overflowing the page

If I set the values to "0 0 100 100" image is fine.

But I don't understand how it is working.