CoordinateConversion widget - how to add z-value to added format which is not wgs84

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01-28-2021 08:31 PM
MichaelLev
Occasional Contributor III

I'm using ArcGIS API for javascript version 4.18 CoordinateConversion widget to display mouse coordinates cocurrently for several cordinate systems. I'm following ESRI's code example in CoordinateConversion widget - Custom Formats page. 

This page shows how to add 2 new formats, one is wgs84 with "z", the 2nd is some TM format.

I want to add "z" also with the 2nd format, but I have not succeeded, as I'm new to this area.

I'll appreciate help.

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Noah-Sager
Esri Regular Contributor
Hi @MichaelLev, I think there are two answers here. First, it looks like the second custom format (spatial reference: 102241) does not support the vertical dimension. 

https://desktop.arcgis.com/en/arcmap/latest/map/projections/fundamentals-of-vertical-coordinate-syst...

https://desktop.arcgis.com/en/arcmap/latest/map/projections/pdf/geographic_coordinate_systems.pdf

But if it did support the vertical (z) coordinate system, then I think you would only need to add the z: parseFloat(parts[2]) to the state plane's conversionInfo.

 

Hope this helps!

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Noah-Sager
Esri Regular Contributor
Hi @MichaelLev, I think there are two answers here. First, it looks like the second custom format (spatial reference: 102241) does not support the vertical dimension. 

https://desktop.arcgis.com/en/arcmap/latest/map/projections/fundamentals-of-vertical-coordinate-syst...

https://desktop.arcgis.com/en/arcmap/latest/map/projections/pdf/geographic_coordinate_systems.pdf

But if it did support the vertical (z) coordinate system, then I think you would only need to add the z: parseFloat(parts[2]) to the state plane's conversionInfo.

 

Hope this helps!

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MichaelLev
Occasional Contributor III

Hi @Noah-Sager , my 2nd coordinate system is not wkid:102241 but wkid:2039.

I added z: parseFloat(parts[2]) to the conversionInfo and has not got z dimension, and this was the reason why I opened this question.

After reading your answer, I searched the pdf mansioned by you, and wkid:2039 is also not mentioned in that pdf in the table of coordinate systems that support vertical dimension. So, this is indeed the reason why I can't get z for wid:2039. 

Thank you