Comments on: Converting Raster Area Images Into Polygon Shapefiles

By: Leszek Pawlowicz

Leszek Pawlowicz — Sun, 10 Aug 2008 19:09:26 +0000

I suspect the problem is a coordinates transformation issue, where you may be starting in geographic coordinates (latitude/longitude), but they may be transformed to UTM along the way, then back to latitude/longitude. That would put you in the Atlantic off the African coast.

By: ChuckJ

ChuckJ — Thu, 07 Aug 2008 17:24:43 +0000

How do you preserve the location data after using SAGA and Map Window GIS. Im trying to load the ending image into Goolge Earth but now it sticks it someh were near Africa in the ocean when it should be in the US.

By: Leszek Pawlowicz

Leszek Pawlowicz — Fri, 27 Jun 2008 16:48:10 +0000

In MicroDEM, you have to right-click on the DEM image, then select “Display Parameter”; you’ll see “Blank” as one of the option.s

By: Charles

Charles — Mon, 23 Jun 2008 19:56:34 +0000

When I right click on the image, I do not get “Blank” in the list of options. How do you enable this?