topic Re: geometryservice measurement problim in ArcGIS JavaScript Maps SDK Questions https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/geometryservice-measurement-problim/m-p/302982#M27820 <HTML><HEAD></HEAD><BODY><SPAN>Web Mercator isn't the best projection to use for measuring. The ArcGIS Server blog has detailed information on this:</SPAN><BR /><A href="http://blogs.esri.com/Dev/blogs/arcgisserver/archive/2010/03/05/Measuring-distances-and-areas-when-your-map-uses-the-Mercator-projection.aspx">http://blogs.esri.com/Dev/blogs/arcgisserver/archive/2010/03/05/Measuring-distances-and-areas-when-your-map-uses-the-Mercator-projection.aspx</A></BODY></HTML> Wed, 29 Sep 2010 19:46:35 GMT KellyHutchins 2010-09-29T19:46:35Z geometryservice measurement problim https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/geometryservice-measurement-problim/m-p/302980#M27818 <HTML><HEAD></HEAD><BODY><SPAN>hi</SPAN><BR /><SPAN>am working on a site using the new JSAPI v2.1 , iam traying to give the user the a measurement tool </SPAN><BR /><SPAN>am using the geometryService "esri's online free one" , the service am publishing is a&nbsp; WGS webmecrator projected</SPAN><BR /><SPAN>when i perform a meature i dont get accurate measure , instid , it returns a tinny number which is soo oppvious to be wrong ,,, but when i use another service that is&nbsp; palestine grid 1923 , it returns acurate measurement data however am still using the same code&nbsp; but changed the service and the spatial reference </SPAN><BR /><SPAN>&nbsp; is this issue related to the coordinate systems ?? </SPAN><BR /><SPAN>&nbsp; what is the solution i can use to get over this problim ??</SPAN><BR /><BR /><SPAN>note : i faced the same problim since JSAPI v1.4</SPAN><BR /><SPAN>please its urgent</SPAN><BR /><BR /><SPAN>thanx in advance</SPAN></BODY></HTML> Wed, 29 Sep 2010 10:03:43 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/geometryservice-measurement-problim/m-p/302980#M27818 anwarawad 2010-09-29T10:03:43Z Re: geometryservice measurement problim https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/geometryservice-measurement-problim/m-p/302981#M27819 <HTML><HEAD></HEAD><BODY><SPAN>could it have anything to do with units? Like you are expecting sq. meters but are really getting acres?</SPAN></BODY></HTML> Wed, 29 Sep 2010 19:34:34 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/geometryservice-measurement-problim/m-p/302981#M27819 KevinGooss 2010-09-29T19:34:34Z Re: geometryservice measurement problim https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/geometryservice-measurement-problim/m-p/302982#M27820 <HTML><HEAD></HEAD><BODY><SPAN>Web Mercator isn't the best projection to use for measuring. The ArcGIS Server blog has detailed information on this:</SPAN><BR /><A href="http://blogs.esri.com/Dev/blogs/arcgisserver/archive/2010/03/05/Measuring-distances-and-areas-when-your-map-uses-the-Mercator-projection.aspx">http://blogs.esri.com/Dev/blogs/arcgisserver/archive/2010/03/05/Measuring-distances-and-areas-when-your-map-uses-the-Mercator-projection.aspx</A></BODY></HTML> Wed, 29 Sep 2010 19:46:35 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/geometryservice-measurement-problim/m-p/302982#M27820 KellyHutchins 2010-09-29T19:46:35Z Re: geometryservice measurement problim https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/geometryservice-measurement-problim/m-p/302983#M27821 <HTML><HEAD></HEAD><BODY><SPAN>kelly , thank you&nbsp; v.v.much</SPAN><BR /><SPAN>the article was soo usefull</SPAN><BR /><BR /><SPAN>its as i suggested , that it has something with the coordinates </SPAN><BR /><BR /><SPAN>so i have to reproject the user's geometry then send it to the geometryservice </SPAN><BR /><BR /><SPAN>thanx alot</SPAN></BODY></HTML> Thu, 30 Sep 2010 11:41:49 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/geometryservice-measurement-problim/m-p/302983#M27821 anwarawad 2010-09-30T11:41:49Z Re: geometryservice measurement problim https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/geometryservice-measurement-problim/m-p/302984#M27822 <HTML><HEAD></HEAD><BODY><SPAN>hii</SPAN><BR /><BR /><SPAN>another thing ..</SPAN><BR /><BR /><SPAN>how can i find out which coordinate is best to use for this process instid of the mecrator</SPAN><BR /><SPAN>i used utm-zone-28n for the area of work mainley in KSA, but i still dont have a correct result</SPAN><BR /><SPAN>can you help me with this ?? </SPAN><BR /><BR /><SPAN>thanx v.v.much in advance</SPAN></BODY></HTML> Thu, 30 Sep 2010 16:08:55 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/geometryservice-measurement-problim/m-p/302984#M27822 anwarawad 2010-09-30T16:08:55Z