S5 - Age determination through crater counts on Lunar geological maps

Events GMAP-PLANMAP 2021
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1

Hi,

Once I click ‘Start edit’, the crater tool becomes active. However, The button ‘Trace’ to edit the area stays inactive. What am I doing wrong?

Thanks,

Rens

2

In the newly opened create feature window on the right select the shape that you want to work on. the trace button should now be active

3

Thanks, that worked. However, now my ArcGIS crashed and I don’t seem to be able to do it again. Nothing happens when I click to set the polygon boundary of the area.

4

you can also select a polygon by selecting it from the attribute table if clicking on it does not work

5

Hi all,
I am still trying to fix an error I get in ArcGIS when I am exporting my craters. If I selected the right layers and click export the following error pops up:
error: Unable to cast COM object of type ‘System.__ComObject’ to interface type ‘ESRI.ArcGIS.Geomotry.IProjectedCoordinateSystem4GEN’. This operation failed because QueryInterface call on the COM component for the interface with IID ‘{D44EDB15-8866-4641-872D-3C81F73AC8AA}’ failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)).
I really don’t know what is happening here and I hope someone can help me!
Cheers,
Lonneke

6

I have figured out that it probably has to do with the fact that my crater layer does not have a coordinate system. I have know idea how that happened, but I cannot find the right way to change it.