Please please please help me figure out what the deal is with my area units!!
When calculate geometry for census tracts in km^2, I am given back some absurd, meaningless number such as 0.000696186.
What on earth is this?? There's no way this is km^2, and I have spent the last four hours going down dead end after dead end trying to get an answer...
The reason I had to project the data is because Arc won't calculate the area of a shapefile that is in a Geographic Coordinate System. You must use a Projected Coordinate System (which you used @yujudith). I believe this is because Geographic Coordinate Systems are 3D datums and Area is a 2D calculation which is the purpose of Projected Coordinate Systems.
Thanks :) ... but, did you use ArcTools only to change the coordinate system? or what else do I have to do? ... I calculated with the PCS: North America Lambert Conformal Conic and it was not necessary to open the projections and transformations properties from the box ... the area appears inmediatly
Please please please help me figure out what the deal is with my area units!!
When calculate geometry for census tracts in km^2, I am given back some absurd, meaningless number such as 0.000696186.
What on earth is this?? There's no way this is km^2, and I have spent the last four hours going down dead end after dead end trying to get an answer...
ManuelHung 1 year ago
The reason I had to project the data is because Arc won't calculate the area of a shapefile that is in a Geographic Coordinate System. You must use a Projected Coordinate System (which you used @yujudith). I believe this is because Geographic Coordinate Systems are 3D datums and Area is a 2D calculation which is the purpose of Projected Coordinate Systems.
GISTutorials 1 year ago
Thanks :) ... but, did you use ArcTools only to change the coordinate system? or what else do I have to do? ... I calculated with the PCS: North America Lambert Conformal Conic and it was not necessary to open the projections and transformations properties from the box ... the area appears inmediatly
yujudith 1 year ago
The video won't load..
susy0007 2 years ago