Research project using ArcMap (New to the ArcGIS suite)
I'm currently helping a professor try to calculate the percentage of a zipcode that overlaps with cities it lies in. For example, a single zip code might stretch across 3 different...
View ArticleGroup By functionality of da.cursors sql_clause
I must be doing something wrong. I am trying to use the Group By functionality of the new da.SearchCursor, but keep getting the error: RuntimeError: Underlying DBMS error [Microsoft SQL Server Native...
View ArticleAdding x,y data to my map using ArcMap 10.1
Hi everyone, This should not be that difficult, and once I learn how to do it, I should be all set. But right now, I am confused. I created a database (the extension is .MDB) with about 60 records....
View ArticleModel Builder Batch Processing Error - 000840 Not a Shapefile
Hello, I've created a model that solves closest facility within a given corridor. I can successfully process a single corridor, but get an error reading 000840, not a shapefile when trying to process...
View Articleclosest neighbour
Hello. I want to create a tool where you add a point (feature set) as input, distance, a feaure class with some polygons or lines and the output is nothing if nothing is near or a table with the...
View ArticleNeed help in regard to applying a projection to a shapefile
I'm trying to apply a projection to a shapefile, and I can't get it to work. I don't have the slightest clue what projection this data has. It encompasses everywhere from eastern Africa east until...
View ArticleTool parameter types - drag'n drop ? (10.0 SP 5)
I got a custom python tool, and one of the parameters is of type "File". Also, we got users requesting drag'n drop support from Catalog, dropping multiple files into the control. Drag and drop does not...
View ArticleSelecting polygon with maximum value
Dear all I am using a polygon shapefile and I want to select the polygon with the highest value. I am trying to implement this in ModelBuilder using ArcGIS Desktop v. 10.1. Ideally I want to select the...
View ArticleLength of the main stem in a river by summarizing line segments
Hello, I have a problem with calculating the length of the main river in a network of rivers. I am only interested in the main stem length. Problem is that the river only consists of line segments and...
View Article10.0 read 10.1 models
Can 10.0 read models created or copied in/from 10.1? It seems that every model that 10.1 has saved is not visible to 10.0.
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Counting pixels in a raster by value - problems with nested iterative model
Hi- I have a mosaicked raster (actually it's in GRID format, so it might not technically be called a raster any more) classified into 5 values (0-5, zero being no data), with a series of points...
View ArticleIterate Feature Classes: (Multiple Wildcards)
Does anyone have a workaround for me where I can specify multiple wildcards when using "Iterate Feature Classes". I need to search for feature class that have the following tile names within a...
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ModelBuilder: "Merge Branch"
I've generated a model in ModelBuilder to automate the terrain preprocessing steps within ArcHydro. I've taken it a step further and generated a python condition script based on an argument supplied by...
View ArticleTools don't work in ArcMap but do in ArcCatalog
Hello I have used a few tools in ArcMap that either produce the "999999" amiguous error or it says they work however produce an empty raster. The odd thing to me is that these tools work just fine in...
View ArticleCalculate Value Tool Not Dynamic in Model
I designed several models that use a Calculate Value tool at the beginning of the model. I just noticed that when the models run, they are not using the dynamic result of the Calculate Value tool. They...
View ArticleChange commas to points in table of shape file, ArcMap
Hey, I have created a shapefile with quite some information in the attribute table, but have used commas in stead of points which is required for my further work ( I will rasterize it later to use as...
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Buufer new generate new table.
I have query about the data in the buffered operation. please have look to the attached model. i have two features class in two separate shape files namely sewered area and septic tanks. my intention...
View ArticleFeature to raster, loop for model builder
Hello, I'm trying to make a model for feature to raster. The feature has 12 columns named for each month of the year. The values for each month are precipitation amount. I want to convert the...
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Feature to Point not calculating centroid correctly
This is registered as a bug for 10.0, but I am not clear on the status since I can't find the bug report. Was this fixed in 10.1 or do I have to work around this for my SDE data?...
View ArticleLightning Data Analysis
Hi I am new to model builder in GIS. I have two shapefiles, one is a polygon shapefile of all lightning caused fire in Alaska sine 1939 (~1500 polygons) and the second is a point shapefile with all...
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