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Working in GIS/ArcGIS with hydrological applications, using Python among other things.


20h
awarded  Popular Question
May
25
comment correction contour line at point of intersection with water courses (“V” or “U” )
I'm sorry, but I can't make sense of what you are asking. You have contours and streams. These lines intersect. What happens then? Could you try to rephrase and elaborate a bit?
May
25
reviewed Approve Apply css styles to layers in openlayers3
May
25
answered Is it possible to add text and numbers into the same column/field of attributes of a shapefile in ArcGIS 10.3?
May
22
comment Is it possible to add text and numbers into the same column/field of attributes of a shapefile in ArcGIS 10.3?
Yes, just use a text (string) type field. (This has more to do with the limitations of a shapefile than your version of Arcmap, although it is appreciated that you include software version :) )
May
20
comment How to create 10m DEM from 30m DEM?
It is possible the same way you create a novel from two pages of text - by adding between the lines. Since you are essentially adding data, you'd have to "manufacture" it somehow. While not very complicated technically, you are creating an illusion of more detailed data than you actually have. What is your reasoning of wanting a 10 m DEM instead of 30m?
May
11
comment Convert code VB to Python
Depending on where you are entering this expression (i.e. Field calculator and other) you need to enclose your field names with ! instead of [] for use with Python. Also, be sure to handle the case where !Field_1! == !Field_2!. +1 for the links!
May
11
comment Interpolating points conditionally
@MatthewFriedman You'd need to add selection by date to the list before making the feature layer. Millions of data points could be an issue, but depends on many things. However, extract some as test data (in the hundreds) to make sure your method works. You might also need to split your data in smaller portions before running the final calculations. This is a process that can be performed with either Modelbuilder or Python. If you have no programming experience I'd go with Modelbuilder, otherwise I think you'll have more control in Python.
May
7
comment Why does ArcMap show quantities for values that are not in attribute table?
Have you tried restarting Arcmap and do it all over again? Also, what if you look at the csv table from within Armap/catalog? It's not a decimal separator mixup?
May
4
comment Error running ArcHydro tools function in Arcmap
Hello! While this might be a part of the solution, I'd also recommend looking at the other answers if you encounter further problems.
Apr
22
awarded  Notable Question
Apr
20
comment Masking for subtype in ArcGIS for Desktop?
How about copying your vegetation layer (in TOC, not the shapefile necessarily), and then adding a definition query for paddy on it. Place above the contours.
Apr
20
comment DEM Stream Burning
With how much are you burning down your streams? A few meters? What are your high and low values in the DEM?
Apr
20
comment Using Con with Hydrology tools in ArcGis Dekstop
How about using the Stream Definition tool (from ArcHydro Tools)‌​, it seems to do exactly what you need.
Apr
16
comment Merging bulk data in 10.2 ArcGIS
With Merge you can easily combine a number of datasets. What is the time critical part, data processing? Are you asking for the fastest algorithm?
Apr
16
comment Select by location-arcpy
What do you want it to do when you have a raster? Clip it with your polygon used in Select by location? Maybe you can just add a type check and filter out rasters before entering the Select by location process.
Apr
15
comment Importing raster from ArcMap to Adobe?
How about exporting to .ai format? I'm not a AI user myself so I haven't tried it out, but I know colleagues that do and it seems to work properly.
Apr
15
reviewed Approve Are mixed geometry types allowed in a shapefile?
Apr
13
reviewed Approve What are GeoExt alternatives?
Apr
13
comment Translating Annotations with FME
I can see you also have Arcmap running, how about doing a Spatial join there? By just converting your dgn to shape you'll get the annotations into a point file, that you can join to your "real" features. You might have to try a few different search distances if your data is complex, though.