topic Re: Export image from query in ArcGIS JavaScript Maps SDK Questions

Export image from query

spencermartin — Tue, 25 Oct 2011 16:02:48 GMT

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?

Re: Export image from query

HemingZhu — Tue, 25 Oct 2011 16:09:40 GMT

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).

Re: Export image from query

spencermartin — Tue, 25 Oct 2011 20:41:25 GMT

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.

Re: Export image from query

HemingZhu — Wed, 26 Oct 2011 13:15:49 GMT

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"

Re: Export image from query

spencermartin — Wed, 26 Oct 2011 18:53:20 GMT

Thanks for your quick and helpful solutions. Works perfectly.