topic Algorithm/Javascript code for esri.geometry.toScreenGeometry() in ArcGIS JavaScript Maps SDK Questions

Algorithm/Javascript code for esri.geometry.toScreenGeometry()

NiranjanBorawake — Thu, 14 Mar 2013 08:48:52 GMT

Hi,

Can some one please share or point me to an algorithm and/or javascript code (actual implementation) of the ArcGIS' esri.geometry.toScreenGeometry(extent, width, height, screenGeometry) geometry service. Details at

geometry service details.

I have to get screen geometries for about 15,000-20,000 points. Calling above geometry service in loop takes substatial amount of time around 5 secs for 15,000 points.

I am looking for a javascript function which would take input as above service and return me screen geometyr object.

I have already got a javascript function for this esri.geometry.geographicToWebMercator(geometry) service.

Thanks,
Niranjan

Re: Algorithm/Javascript code for esri.geometry.toScreenGeometry()

RahulMetangale1 — Thu, 14 Mar 2013 11:03:07 GMT

Niranjan,

I do not think esri.geometry.toScreenGeometry calls geometry service. it will perform calculation on client side.

Rahul

Re: Algorithm/Javascript code for esri.geometry.toScreenGeometry()

NiranjanBorawake — Fri, 15 Mar 2013 07:58:46 GMT

Hi Rahul,

Yes, you seem to be right, the calculation is performed at client side and no service is called.

But is there a chance where I can get the algorithm that does this.

My plan is to implement this algo in java code so that I reduce the work that is done on browser.

Thanks,

Niranjan