I have a tableView that holds an array of records that correspond with AGSGraphics which are in a mapView. The tableView and mapView are separate views. The goal here is to allow the user to tap the tableView's accessoryButton then the view changes to the mapView and a callout for the corresponding AGSGraphic shows. I can step through the code until I get to the first method in the infoTemplateDelegate. It is here that the Xcode gives the error message: "CALayer position contains NaN: [nan nan]". I am listing the code below in the order that it is stepped through.I have two graphics layers - one that holds the graphics on the map (myGraphicsLayer) and another that is used to show the callout (popupGraphicsLayer). This seems odd so perhaps this is where I have messed up.pointsTableController.m- (void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:
(NSIndexPath *)indexPath {
GPS1AppDelegate *delegate = (GPS1AppDelegate *)[[UIApplication sharedApplication] delegate];
mapViewController = [[MapView alloc] init];
[delegate.navController pushViewController:mapViewController animated:YES];
NSUInteger matchingObjectID;
for ( NSMutableDictionary *dict1 in pointRows )
{
if ( [[dict1 valueForKey:@"dict_objectid"] isEqual:
[[pointRows objectAtIndex:indexPath.row] valueForKey:@"dict_objectid"]] )
{
matchingObjectID = [[dict1 valueForKey:@"dict_objectid"] intValue];
}
}
[mapViewController selectThePoint:matchingObjectID];
}
MapView.m-(void)selectThePoint:(NSUInteger)objectID
{
self.popupGraphicsLayer = [AGSGraphicsLayer graphicsLayer];
[self.mapView addMapLayer:self.popupGraphicsLayer withName:@"Popup Layer"];
AGSGraphic *foundAGSGraphic;
foundAGSGraphic = [[AGSGraphic alloc] init];
for ( AGSGraphic *graphicItem in self.myGraphicsLayer.graphics )
{
if ( [[graphicItem.attributes valueForKey:@"dict_objectid"] intValue] == objectID )
{
foundAGSGraphic = graphicItem;
}
}
[self.popupGraphicsLayer addGraphic:foundAGSGraphic];
[self.popupGraphicsLayer dataChanged];
[self.mapView showCalloutAtPoint:nil forGraphic:foundAGSGraphic animated:YES];
}
infoTemplateDelegate.m
@implementation infoTemplateDelegate
-(NSString *)titleForGraphic:(AGSGraphic *)graphic screenPoint:(CGPoint)screen mapPoint:(AGSPoint *)map
{
// when this is called from selectThePoint, Xcode returns
// "CALayer position contains NaN: [nan nan]" when
// the next line is stepped through.
return [graphic.attributes valueForKey:@"dict_point_number"];
}
-(NSString *)detailForGraphic:(AGSGraphic *)graphic screenPoint:(CGPoint)screen mapPoint:(AGSPoint *)map
{
return [graphic.attributes valueForKey:@"dict_comment"];
}
@end
Thanks for any help,Paul Lohr
