Cannot create Custom Projected CS from ArcObjects Java SDK?

KeenanGebze1

Hi, 

in the ArcObjects SDK for Java, there is an example code to create a custom projected CS using IProjectedCoordinateSystemEdit define() method.

Here is the link:

How to create a custom projected coordinate system—ArcObjects 10.4 Help for Java | ArcGIS for Desktop 

or ArcObjects Help for Java developers | ArcGIS for Desktop 

Here is the example code:

static IProjectedCoordinateSystem createProjectedCoordinateSystem() throws Exception{      
    ISpatialReferenceFactory2 spatialReferenceFactory = new SpatialReferenceEnvironment();      
    //Create a projection, GeographicCoordinateSystem, and unit using the factory.    
    IProjectionGEN projection = (IProjectionGEN) spatialReferenceFactory.createProjection(
        (int) esriSRProjectionType.esriSRProjection_Sinusoidal);
    IGeographicCoordinateSystem geographicCoordinateSystem = spatialReferenceFactory.createGeographicCoordinateSystem(
        (int) esriSRGeoCSType.esriSRGeoCS_WGS1984);
    ILinearUnit unit = (ILinearUnit)spatialReferenceFactory.createUnit(
        (int) esriSRUnitType.esriSRUnit_Meter);      
    //Get the default parameters from the projection.    
    IParameter[] parameters = projection.getDefaultParameters();      
    //Create a projected coordinate system using the Define method.    
    IProjectedCoordinateSystemEdit projectedCoordinateSystemEdit = new ProjectedCoordinateSystem();
    Object name = "Newfoundland";
    Object alias = "NF_LAB";     
    Object abbreviation = "NF";     
    Object remarks = "Most Eastern Province in Canada";     
    Object usage = "When making maps of Newfoundland";     
    Object geographicCoordinateSystemObject = geographicCoordinateSystem;     
    Object unitObject = unit;     
    Object projectionObject = projection;     
    Object parametersObject = parameters;      
    projectedCoordinateSystemEdit.define(name, alias, abbreviation, remarks, usage,
         geographicCoordinateSystemObject, unitObject, projectionObject,
         parametersObject); // <-- problem part. If I put null, then it works.     
  return (IProjectedCoordinateSystem)projectedCoordinateSystemEdit; 
}

I've run the code, but wont work and throwing native library error: Execution protection violation.

Below I've attached the error log.

I've identified the problem part. The IParameter[] parameter is making the define() method crashes. If I substitute the parameter using null values, the define() method works perfectly.

I want to create a Lambert Azimuthal Equal Area PCS in which I can custumize the central latitude and longitude.

Thankyou,

I'm using:

ArcGIS Developer Kit 10.5

ArcGIS Engine 10.5

JDK ver. 1.8.0_151 32bit 

JRE ver. 1.8.0_121 32bit (in the ArcGIS Developer Kit 10.5 folder)

hs_err_pid19124.log.zip

KeenanGebze1

Thankyou,

I've followed your advice by saving the said projection in to a .prj file (from ArcMap) and then pass the content of the prj file into SpatialReferenceEnvironment's createESRISpatialReferenceFromPRJ(String prj) method with few modified parameters.

But an exception came out: AutomationException: 0x80040207 - The input is not a workstation prj file. in '"esri.SpatRefEnvironment"'

I didn't find much documentation about this (ArcInfo?) workstation prj file and struggled to create it. (I found one but not much of a help: How To: Make the Projections Tools for coverages work in ArcToolBox )

However, the code worked when I use the createESRISpatialReferenceFromPRJ(String prjFile) method:

SpatialReferenceEnvironment sre = new SpatialReferenceEnvironment();

return sre.createESRISpatialReferenceFromPRJFile("..\\South Pole Lambert Azimuthal Equal Area.prj");

Of course I would not prefer using this method because I've to write and read to a file every time, just to edit few parameters.

So If there is a documentation about this "ArcInfo workstation prj" file or other solution, that would be helpful.

I'll also try using ArcObjects SDK / Engine 10.4