topic Re: Setting Graphic symbol color after graphics layer is drawn on the map in ArcGIS JavaScript Maps SDK Questions

Setting Graphic symbol color after graphics layer is drawn on the map

SanthoshKumar3 — Fri, 02 May 2014 14:10:17 GMT

Hello,

I have a graphics layer drawn on the map with several other layers. I want to set a different color for the symbol based on a condition. So, I have used symbol.SetColor method which does not work.

var layer = map.getLayer('layerid'); layer.graphics[0].symbol.setColor(new dojo.Color("red"));

Any suggestions?

-Santhosh

Re: Setting Graphic symbol color after graphics layer is drawn on the map

JohnGrayson — Fri, 02 May 2014 14:33:26 GMT

Suggestions:

1) Best solution is to add a renderer to the layer based on the conditions so you don't have to worry about changing symbol colors directly.

2) To change the symbol directly, here are the general steps (not tested):

var layer = map.getLayer('layerid'); // get the symbol var symbol = layer.graphics[0].symbol; // change color symbol.setColor(new dojo.Color("red")); // assign symbol back to graphic layer.graphics[0].setSymbol(symbol);

Re: Setting Graphic symbol color after graphics layer is drawn on the map

SanthoshKumar3 — Fri, 02 May 2014 14:41:09 GMT

Thanks John. Setting the symbol for the graphic worked. I thought setting the color will refresh the graphic automatically. I will look up renderer examples in the API documentation. It sounds like that is a clean solution.