topic Geographic or Projected in ArcGIS API for Flex Questions

Geographic or Projected

JoseSousa — Wed, 24 Mar 2010 16:48:05 GMT

Dear ArcGIS API Team,

Is it possible to know using the Flex API if a spatial reference is of type Geographic or Projected?

Thanks a lot,

José Sousa
ESRI Portugal

Geographic or Projected

JU — Fri, 02 Apr 2010 14:18:19 GMT

Currently the only way is to use the Spatial Reference guides to see what the WKID stands for. There might be some way to tell based on the number but I have yet to see anything definitive on that.

http://resources.esri.com/help/9.3/arcgisserver/apis/flex/help/content/references/coordinate_system_ids.htm

Re: Geographic or Projected

RobertScheitlin__GISP — Sun, 12 Dec 2021 07:24:23 GMT

José Sousa,

You could use a simple function like this

public function GeoOrPro(WKID:Number):String
{
 var retVal:String = "NULL";
 
 if(WKID >= 2000 && WKID <= 4000){
  retVal= "PROJECTED";
 }else if(WKID >= 4001 && WKID <= 4904){
  retVal= "GEOGRAPHIC";
 }else if(WKID >= 20002 && WKID <= 32766){
  retVal= "PROJECTED";
 }else if(WKID >= 37001 && WKID <= 37260){
  retVal= "GEOGRAPHIC";
 }else if(WKID >= 53001 && WKID <= 53049){
  retVal= "PROJECTED";
 }else if(WKID >= 54001 && WKID <= 54053){
  retVal= "PROJECTED";
 }else if(WKID >= 65061 && WKID <= 65063){
  retVal= "PROJECTED";
 }else if(WKID >= 102001 && WKID <= 103971){
  retVal= "PROJECTED";
 }else if(WKID >= 104000 && WKID <= 104970){
  retVal= "GEOGRAPHIC";
 }
 return retVal;
}