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multicolored graphics/sketch layer

HamzaHaroon

I'm trying to add different colored graphics to my graphics layer. I have made a graphics renderer and set the AGSSimpleFillSymbol.

When i change the color of the fill symbol, the graphics layer redraws the previous graphics with the new color. How do i make the graphics layer hold graphics of different colors?

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NimeshJarecha

You should assign symbol to each graphic rather than assigning a renderer to the graphics layer.

Regards,
Nimesh

HamzaHaroon

this is how i'm adding graphics to my graphics layer

AGSGeometry* sketchGeometry = [[self.sketchLayer.geometry copy] autorelease];
AGSGraphic* graphic = [AGSGraphic graphicWithGeometru: sketchGeometry symbol: lineColor attributes: nil infoTemplateDelegate: nil];
[self.graphicsLayer addGraphic:graphic];

my lineColor is an AGSFillSymbol and assigned in the viewDidLoad method.

AGSCompositeSymbol *mainSym = self.gpsSketchLayer.mainSymbol;
        for (AGSSymbol *s in mainSym.symbols) {
            if ([s isKindOfClass:[AGSSimpleFillSymbol class]])
            {
                lineColor = (AGSSimpleFillSymbol *)s;
                lineColor.outline.color = [UIColor blueColor];
            }
        }

I change my lineColor from buttons.

NimeshJarecha

Did you remove renderer from graphics layer?

Regards,
Nimesh

HamzaHaroon

yea. still changes all of my graphics to the same color.

NimeshJarecha

Are you setting different color for the symbol each time before assigning it to the graphic?
Post a sample application so I can have a look.

Regards,
Nimesh

HamzaHaroon

heres my code in my viewController class. implementing the graphics layer here.

#import "GMViewController.h"

@interface GMViewController ()

@end

@implementation GMViewController
synthesize painting;
@synthesize colorPalette;
@synthesize colorPicker;
@synthesize mapView = _mapView;
@synthesize tiledLayer;
@synthesize dynamicLayer;
@synthesize sketchLayer;
@synthesize graphicsLayer;
@synthesize midSymbol;
@synthesize vertSymbol;
@synthesize cred;
@synthesize toolbar = _toolbar;
@synthesize sketchToolbar = _sketchToolbar;
@synthesize lineColor;
@synthesize gLine;

- (void)viewDidLoad
{
    [super viewDidLoad];
 
    painting1 = [[PaintingView alloc] init];
    [painting1 setDelegate:self];
    
    [painting setDelegate:self];
    
    NSString *backgroundLayer = kTiledMapServiceURL1;
    
    tiledLayer = [[AGSTiledMapServiceLayer alloc] initWithURL:[NSURL URLWithString:backgroundLayer]];
    
    [self.mapView addMapLayer:tiledLayer withName:@Tiled Layer];
    
    NSString *pass = @mobile1!;
    cred = [[AGSCredential alloc] initWithUser:@mobile password:pass];
    
    dynamicLayer = [[AGSDynamicMapServiceLayer alloc] initWithURL:[NSURL URLWithString: kDynamicMapServiceURL] credential:cred];
    
    [self.mapView addMapLayer:dynamicLayer withName:@Dynamic Layer];
    
    
    //Graphics layer to hold all sketches (points, polylines, and polygons)
  graphicsLayer = [AGSGraphicsLayer graphicsLayer];
 [self.mapView addMapLayer:graphicsLayer withName:@Graphics Layer];
    
    AGSGraphicsLayer *graphicsLayer2 = [AGSGraphicsLayer graphicsLayer];
    [self.mapView addMapLayer:graphicsLayer2 withName:@Graphics Layer 2];
    
    
 //A composite symbol for the graphics layer's renderer to symbolize the sketches
 AGSCompositeSymbol* composite = [AGSCompositeSymbol compositeSymbol];
 AGSSimpleMarkerSymbol* markerSymbol = [[[AGSSimpleMarkerSymbol alloc] init] autorelease];
 //markerSymbol.style = AGSSimpleMarkerSymbolStyleSquare;
 //markerSymbol.color = [UIColor greenColor];
 //[composite.symbols addObject:markerSymbol];
 AGSSimpleLineSymbol* lineSymbol = [[[AGSSimpleLineSymbol alloc] init] autorelease];
 lineSymbol.color= [UIColor redColor];
 lineSymbol.width = 4;
 [composite.symbols addObject:lineSymbol];
 AGSSimpleFillSymbol* fillSymbol = [[[AGSSimpleFillSymbol alloc] init] autorelease];
 fillSymbol.outline.color = [UIColor redColor];//colorWithRed:1.0 green:0 blue:0 alpha:4] ;
    fillSymbol.outline.width = 4;
 [composite.symbols addObject:fillSymbol];
 AGSSimpleRenderer* renderer = [AGSSimpleRenderer simpleRendererWithSymbol:composite];
 //graphicsLayer.renderer = renderer;
    graphicsLayer2.renderer = renderer;
    
 //Sketch layer
 sketchLayer = [[[AGSSketchGraphicsLayer alloc] initWithGeometry:nil] autorelease];
 [self.mapView addMapLayer:sketchLayer withName:@Sketch layer];
    
    AGSSketchGraphicsLayer *sketchLayer2 = [[[AGSSketchGraphicsLayer alloc] initWithGeometry:nil]autorelease];
    [self.mapView addMapLayer:sketchLayer2 withName:@Sketch layer2];
 
 //Helper class to manage the UI toolbar, Sketch Layer, and Graphics Layer
 //Basically, where the magic happens
 self.sketchToolbar = [[[GMSketchToolBar alloc] initWithToolbar:self.toolbar
                                                     sketchLayer:sketchLayer2
                                                         mapView:self.mapView
                                                   graphicsLayer:graphicsLayer2] autorelease];
    
    poly = [[AGSMutablePolyline alloc] initWithSpatialReference:self.mapView.spatialReference];
    midSymbol = self.sketchLayer.midVertexSymbol;
    vertSymbol = self.sketchLayer.vertexSymbol;
    self.sketchLayer.midVertexSymbol = nil;
    self.sketchLayer.vertexSymbol = nil;
    
    AGSSpatialReference *sr = [AGSSpatialReference spatialReferenceWithWKID:1984];
    AGSEnvelope *env = [AGSEnvelope envelopeWithXmin:-16.7178 ymin:10.9251 xmax:-13.6439 ymax:12.6847 spatialReference:sr];
    
    [self.mapView zoomToEnvelope:env animated:YES];
    
    gLine.outline.color = [UIColor redColor];
    
    AGSSimpleFillSymbol *gfxLine = [[[AGSSimpleFillSymbol alloc] init] autorelease];
    gfxLine.outline.color = [UIColor redColor];
    //gLine = (AGSFillSymbol* )gfxLine;
    
    
    AGSCompositeSymbol *mainSym = self.sketchLayer.mainSymbol;
    for (AGSSymbol *s in mainSym.symbols)
    {
        if ([s isKindOfClass:[AGSSimpleFillSymbol class]])
        {
            lineColor = (AGSSimpleFillSymbol *)s;
            lineColor.outline.color = [UIColor redColor]; //changes line
            lineColor.outline.width = 4; // changes width of line.
        }
    }
    
}

-(void)makeLine:(CGPoint)touch firstTouch:(BOOL)firstTouch lineFinished:(BOOL)lineFinished
{
    if (firstTouch)
    {
        //poly = [[AGSMutablePolyline alloc] initWithSpatialReference:self.mapView.spatialReference];

        //self.sketchLayer.geometry = [[[AGSMutablePolyline alloc]initWithSpatialReference:self.mapView.spatialReference]autorelease];
        [poly addPathToPolyline];
        //polly = [[[AGSMutablePolyline alloc] initWithSpatialReference:self.mapView.spatialReference]autorelease];
    }

    [poly addPointToPath:[self.mapView toMapPoint:touch]];
    
    self.sketchLayer.geometry = poly;
}

-(void) mapView:(AGSMapView *) mapView failedLoadingLayerForLayerView:(UIView<AGSLayerView> *)layerView baseLayer:(BOOL)baseLayer withError:(NSError *)error
{
    if (!baseLayer)
        [self.mapView removeMapLayerWithName:layerView.name];
}

- (void)viewDidUnload
{
    [self setMapView:nil];
    [self setPainting:nil];
    [self setColorPicker:nil];
    [self setColorPalette:nil];
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}

-(void)dealloc
{
    [painting1 release];
    self.mapView = nil;
    self.toolbar = nil;
    self.sketchToolbar = nil;
    [super dealloc];
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return YES;
}

- (IBAction)pullPaintBoard:(id)sender {
    CGRect redLiningFrame = painting.frame;
    CGRect colorFrame = colorPalette.frame;

    if (redLiningFrame.origin.x == 0)
    {
        redLiningFrame.origin.x = 1024;
        colorFrame.origin.x = 1024;

        AGSGeometry* sketchGeometry = [[self.sketchLayer.geometry copy] autorelease];
        //gLine.outline.color = lineColor.outline.color;
        AGSGraphic* graphic = [AGSGraphic graphicWithGeometry:sketchGeometry symbol:lineColor attributes:nil infoTemplateDelegate:nil];
  [self.graphicsLayer addGraphic:graphic];
        
        
        [self.graphicsLayer dataChanged];
        [self.sketchLayer clear];
        
    }
    else
    {
        redLiningFrame.origin.x = 0;
        colorFrame.origin.x = 60;
    }
    
    painting.frame = redLiningFrame;
    colorPalette.frame = colorFrame;
}
- (IBAction)colorPicker:(id)sender {
    
}
- (IBAction)selectRed:(id)sender {
    lineColor.outline.color = [UIColor redColor];
    gLine.outline.color = [UIColor redColor];
}

- (IBAction)selectBlue:(id)sender {
    lineColor.outline.color = [UIColor blueColor];
    gLine.outline.color = [UIColor blueColor];
}

- (IBAction)clearScreen:(id)sender {
    [self.graphicsLayer removeAllGraphics];
    [self.graphicsLayer dataChanged];
}
@end

edited code slightly to add lines to graphic layer.

lines are created in my makeLine method. they are added to the graphic layer in the pullPaintBoard method.

NimeshJarecha

Please attach an application which I can run. It's very hard to read the code and help you.

Regards,
Nimesh

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