Arcmap crashing/shutting down

[RobertoFilloramo]

Hi,

I have a problem with my Arcmap (v.10.3.1), I am trying to use the contour tool using the deriving data from my DTM (8mt) but it doesn't work. I used this file for other tool and it always worked. Anyway, I presumed that it was the file the problem, so I started to use the Slope file as attempt but when I try to use the contour tool Arcmap crashes blocking itself or shutting down directly. 

In your opinion, what could be the cause?

Thank you in advance

Regards

Roberto

[RobertoFilloramo]

hi Steve,

the interval that I used was 15, but also with 10 I had the same problem. 

Yes, it is not the first time that I gained the slope from this DTM and always it worked. 

Thanks

Roberto

[SteveLynch]

Roberto

What is the min/max value in the raster?

and is the output going to a shapefile of file geodatabase?

-Steve

[RobertoFilloramo]

the raster has as max "High : 1,94202e+006" and min "Low : 0", while the output going to a shapefile

Roberto

[SteveLynch]

Roberto

Wow, that answers all my questions. Values between 0 and circa 2 million with a interval of 10 and output to shapefile.

A shapefile file cannot exceed 2.1GB  (on disk, this is a Microsoft limitation).

Please try output to file geodatabase and for testing purposes please use a contour interval of 500000.

Thanks

-Steve

[RobertoFilloramo]

So, I stored it in a geodatabase and put your value.... It worked! Thank you!!!

But now I need to work with low contour values, because for it is the time lapse that someone could take to cross the landscape...so, should I resize the raster or there is another way?

Roberto

[SteveLynch]

OK, now we've established that the Contour tool is working.

Contour lines are similar to when you slice a potato. If your range is large and you have a small contour interval it means that many lines will be created. In your case it'll create contours at 10, 20, 30, 40, ..., 2 million.

Do you only want lines, for example, at 10, 20, 30 and 50? If so rather use the ContourList tool or create a new raster that only has values between 0 and ~50 and use the Contour tool.

-Steve

[RobertoFilloramo]

Sorry, it is not clear to me.... So, I have to use the contour tool setting intervals like "10, 20, 30, 50", did I understand well? Anyway, I need the lines to estimate graphically the walking time lapse.

Roberto

[SteveLynch]

You need to use the ContourList tool

[SteveLynch]

Contour will create a line at every, say, 10 (contour interval), so if your min, max =0,100, you’ll get lines at 10, 20, 30, 40, 50 , 60 , 70 , 80, 90

For the same raster, ContourList with lines at, say 10, 55, 90, will create lines at 10, 55, 90

The one is an interval and the other is a list of values at which you want lines.

[RobertoFilloramo]

Thank you for your suggestion!!! I tried using the intervals at 15, 30, 45, 60, 75, 90 and it worked, at least the shp appeared into the layer table of contents yet it didn't show up in the data frame. 

Sorry for bothering you

Thanks

Roberto