topic Re: (evt.graphic.symbol.color) what is false here? in ArcGIS JavaScript Maps SDK Questions

(evt.graphic.symbol.color) what is false here?

CesarRevilla — Thu, 02 Feb 2012 17:46:38 GMT

Hello,

I want to use this event.graphic color in a new Style. The next code still not working:

What is wrong?

function Highlight(evt){
evt.graphic.setSymbol(new esri.symbol.SimpleFillSymbol(esri.symbol.SimpleFillSymbol.STYLE_SOLID, outline, evt.graphic.symbol.color));
}

Have anyone an Idea?

Best Regards,
orzundher

Re: (evt.graphic.symbol.color) what is false here?

CesarRevilla — Fri, 03 Feb 2012 11:10:30 GMT

let me reiterate what my problem is:

I get the error that symbol is undefined in esri.graphic.symbol
I am trying to do this:

dojo.connect(map, 'onClick', Hilight);
--------
and in function Hilight()
var thiscolor = evt.graphic.symbol.color;
const outline = new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_SOLID, new dojo.Color([255,0,0]), 2);
evt.graphic.setSymbol(new esri.symbol.SimpleFillSymbol(esri.symbol.SimpleFillSymbol.STYLE_SOLID, outline, thiscolor));

my question is:
why does evt.graphic contain an undefined value for symbol?
it is supposed to get the graphic object from the server and it is showing the color of the object when drawing the map.
I want to get the color of the object!
Can anyone suggest how I can get the color of the object that I clicked?

Thanks,
orzundher

Re: (evt.graphic.symbol.color) what is false here?

derekswingley1 — Fri, 03 Feb 2012 15:44:41 GMT

When your onClick fires, check to make sure the object that gets passed to your handler has a property name graphic, that graphic has a property named symbol and that symbol has a property named color. The easiest/best way to do this is with hasOwnProperty.

Depending how your app is set up, it might be better to put your onClick handler directly on your graphicsLayer rather than on your map.

Re: (evt.graphic.symbol.color) what is false here?

CesarRevilla — Fri, 03 Feb 2012 15:58:08 GMT

Hi swingley,

thank you for this answer, I found a solution to this problem.

Problem: The event information content a esri.Graphic with an undefined symbol property (attributes, geometry and others are defined).
Im not shure if its normal for other map configurations, its only not confortable.

Solution:

var actualColor = event.graphic.getDojoShape().getFill();

actualColor is a dojo.Color object, its enough for me.

Thank you for your support,
orzundher

Re: (evt.graphic.symbol.color) what is false here?

derekswingley1 — Fri, 03 Feb 2012 16:09:07 GMT

Glad you found a solution!

Re: (evt.graphic.symbol.color) what is false here?

CesarRevilla — Sun, 12 Dec 2021 05:43:44 GMT

graphic.getDojoShape() works not with QUERYRESULTS.features[0] Graphic.

var queryTask = new esri.tasks.QueryTask("..................");
var query = new esri.tasks.Query();

query.where = "....................";
query.returnGeometry = true;

queryTask.execute(query, functionX);

function funcitonX(QUERYRESULTS) {
  shape = QUERYRESULTS.features[0].getDojoShape(); //here hangs up!
}

Thanks for your Help,
orzundher