Export image from query

[spencermartin]

Using rest api I need the bbox values from a query in order to export an image.  What is the easiest way from rest to query a field from a MapService and return the extent to then export that image?

[HemingZhu]

Using rest api I need the bbox values from a query in order to export an image.  What is the easiest way from rest to query a field from a MapService and return the extent to then export that image?

esri.graphicsExtent(featureSet.features).

[spencermartin]

Ok, that was helpful. Using the find feature I've retrieved the graphic and passed it to graphicsExtent.  Question I have now is how to make graphic extent zoom to extent of the found object.  This is without a map since I only want min max to create export image.

[HemingZhu]

Ok, that was helpful. Using the find feature I've retrieved the graphic and passed it to graphicsExtent.  Question I have now is how to make graphic extent zoom to extent of the found object.  This is without a map since I only want min max to create export image.

extent =esri.graphicsExtent(featureSet.features).
var src ="http://yourMapService/export?bbox="+extent.xmin+","+extent.ymin+","+extent.xmax+","+extent.ymax+"&f=image"

[spencermartin]

Thanks for your quick and helpful solutions. Works perfectly.