Hello,
I'm making an iOS app where the user clicks a point and a GP tool is run on the given X/Y of the point. I've been successful in creating the point but each successive click adds another point. I'd like the graphics layer to only contain the most recent point clicked. The graphics flash off and back on after each click, so I think it is re-drawing. Where am I going wrong?
Here is my code:
int graphicCount = 0;
-(void)addPoint:(AGSPoint*) mappoint{
graphicCount+=1;
AGSGraphicsLayer* myGraphicsLayer = [AGSGraphicsLayer graphicsLayer];
[self.mapView addMapLayer:myGraphicsLayer withName:@"Graphics Layer"];
//create a marker symbol to be used by our Graphic
AGSSimpleMarkerSymbol *myMarkerSymbol =
[AGSSimpleMarkerSymbol simpleMarkerSymbol];
myMarkerSymbol.color = [UIColor blueColor];
[myMarkerSymbol setSize:CGSizeMake(10,10)];
[myMarkerSymbol setOutline:[AGSSimpleLineSymbol simpleLineSymbolWithColor:[UIColor redColor] width:1]];
//Create an AGSPoint (which inherits from AGSGeometry) that
//defines where the Graphic will be drawn
AGSPoint* myMarkerPoint =
[AGSPoint pointWithX:mappoint.x
y:mappoint.y
spatialReference:[AGSSpatialReference wgs84SpatialReference]];
//Create the Graphic, using the symbol and
//geometry created earlier
AGSGraphic* myGraphic =
[AGSGraphic graphicWithGeometry:myMarkerPoint
symbol:myMarkerSymbol
attributes:nil];
if(graphicCount>1){
NSLog(@"DELETING OLD GRAPHICS");
[myGraphicsLayer removeAllGraphics];
graphicCount=0;
}
//Add the graphic to the Graphics layer
[myGraphicsLayer addGraphic:myGraphic];
}
The if statement fires correctly but removeAllGraphics or removeGraphic: myGraphic do not remove the previous graphic. Suggestions? Thank you!
