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POMKMapView Region
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copied!<p>I have a question regarding setting the region on my MKMapView.</p> <p>I need to set the mapview to display a specific region when my view first loads.</p> <p>The north east and south west latitude and longitude of this region is:</p> <pre><code>North East Coordinate Lat:59.623724 Long:2.911587 South West Coordinate Lat:49.004833 Long:-11.361825 </code></pre> <p>Further to this, I would like to 'lock' the mapview to this region. Ideally the lock will be transparent, i.e: the coordinates above represent the maximum extent of the MKMapView. However if it is simply a case of checking the northeast and southwest coordinates within</p> <pre><code>- (void)mapView:(MKMapView *)aMapView regionDidChangeAnimated:(BOOL)animated </code></pre> <p>and resetting the view if they exceed my maximum range, that would be acceptable to me also.</p> <p>Many thanks for any pointers on this matter.</p> <p>EDIT: Regarding the first part of my question, I have figured out I can set the initial region on the MKMapView using the following code:</p> <pre><code>CLLocationCoordinate2D neCoord; neCoord.latitude = 59.787643; neCoord.longitude = 3.025857; CLLocationCoordinate2D swCoord; swCoord.latitude = 49.394171; swCoord.longitude = -11.036642; MKCoordinateRegion region; region.center.latitude = neCoord.latitude - (neCoord.latitude - swCoord.latitude) * 0.5; region.center.longitude = neCoord.longitude + (swCoord.longitude - neCoord.longitude) * 0.5; region.span.latitudeDelta = fabs(neCoord.latitude - swCoord.latitude); // Add a little extra space on the sides region.span.longitudeDelta = fabs(swCoord.longitude - neCoord.longitude); // Add a little extra space on the sides region = [self.mapView regionThatFits:region]; [self.mapView setRegion:region animated:YES]; </code></pre>

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