How to create my own custom map

Question

I want to create my own simple map on iPhone application. all I want is to be able to implement pan and zoom on my own image (so it looks like a map) and to add pins on it.

If I didn't need to add pins, I could have just used a scroll view, but if I want to add pins - they need to move with the map, but keep their own size when zooming.

I'm not looking for tiles. I need to create only a small area, so I can use one photo only. I just need an idea for a way to create it.

Answer 1

An MKTilesOverlay is a simple overlay that starts with the world as one square at level 1 called 1.png in a folder called 1. 1/1/1.png When you zoom in a bit the world is drawn from four squares. The one in the top left is 1.png is a folder called 1 at level 2 2/1/1.png The one in the top right is also called 1.png but it is in a folder called 2 because it is the second column. 2/2/1.png The image in the bottom left is the second row of the first column of the second zoom level 2/1/2.png and the bottom right is the second row of the second column of the second zoom level 2/2/2.png

It goes on from there. So if you want your image be drawn over a map you'll need to cut it up into squares (note each one is the same number of pixels wide, usually 256/512) and make an MKTileOverlay. If you set the replacesMapContent flag on your overlay iOS will not try to load the map content. You may still see the compass though.