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Graphics Layer graphics redraw incorrectly after zoom

Question asked by JasonJFitzsimmons on Apr 17, 2015
Latest reply on Apr 24, 2015 by JasonJFitzsimmons

I am working on a web application that has several Graphics Layers, with ArcGIS JS API  3.8 (AMD).  These layers add Picture Marker Symbols at specific and unique angles to the midpoints of line segments, which are located by a query.  The angle is calculated by finding the each line segment's beginning and end nodes, and using those x/y coordinates to calculate the bearing (the picture is an arrow, signifying street direction).

 

This is working for the initial rendering of the graphics, but if I zoom in or out of the map, the graphics redraw all alt the same angle.  My guess is that this has something to do with the timing of the rendering; the graphics are rendering before the correct angle for each new graphic is re-calculated.

 

How can I correct this problem?

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