Reclassify multiple attributes at once?
Hi, I have layer of subwatersheds within a watershed. I would like to make a layer for each subwatershed, where the value within is 1 and the value for all other subwatersheds is 0. I know I can do...
View ArticleSort by ID# and then date and measure distances
I have a dataset of points grouped by an ID number field along with dates. I'd like to get a set of euclidean distances between the points within each ID number that are closest together in time. I...
View ArticleArcgis 10.1 modelbuilder - defining a field name in a expression to be a...
Hello, I was asked if the following can be done in the modelBuilder (I know it's simple in python, but I was asked specifically on the modelBuilder): The user has a expression in the model:...
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ModelBuilder - Delete Largest Polygon
Attachment 23200 Hi, I have a polygons feature class inside a model and I need to delete the largest polygon. The logic I've followed so far is: - Convert the polygons to a feature layer so that I can...
View Articleextract values to points, multiple raster- and shape-files, using ModelBuilder
Hi Everyone, I am pretty new to the Model Builder. After some tutorials I wanted to start my first project now and got incredibly stuck: The task: I have many shapefiles, each with a huge amount of...
View ArticleChange raster coordinate without resampling
I have looked all through the help and online forums todays and I can't find an answer to this. What I am trying to do is take a raster in MrSid with an accompanying aux.xml and text file of linked...
View Articleincident address as location, closest facility model
Hi I am building a model to determine the closest facility. My incident location is a point that i will like to input as an address. I need help on how to make the model accept the address (in place of...
View ArticleData Driven Pages and python
I am attempting to export a set of maps using python and data driven pages. I have been successful in getting the code to work but I am struggling with the file naming of the exported JPEG's. I need to...
View ArticleObserver Points output raster attribute table
I am trying to understand the attribute table for the output raster generated from the Observer Points tool. I am analyzing five observer points named T2, T4, T7, T8, T9 in a point shapefile. The...
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Spatial Join tool, sum of valus of features from join dataset not working
I am having a problem with the Spatial Join tool (Tool box) at 10.0 SP5 ArcInfo, In the past I have used the tool to aggregate data from many small polygons to larger overlapping polygons through the...
View Articleoptimization of sensor locations
hi ,I have a project on the optimization of sensor locations on a network leakage of drinking water, after an internet search I found this algorithm to optimize the location of sensors: ‘SLOTS’ (Dorini...
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"Kernal Interpolation with Barriers" producing cell values not equal to input...
Hello, I'm currently working on a project involving interpolation of water quality values (taken at monitoring stations) within a river polygon. The monitoring stations are fairly widely spaced,...
View ArticleASCII TIGER/Line files to GIS compatible format??
I've downloaded an ASCII text file from US Census Bureau website and now need to bring this file into ArcMap but cannot. I can open it in TransCAD save it as an ESRI SHP and then open it in ArcMap. Is...
View ArticleFast Geoprocessing services (GPFeatureRecordSetLayer)
Hi, I need a very fast GP service. The service is based on a 10.1 Python toolbox and uses "arcpy.analysis.Intersect". I improved the performance very much (like 8X) by using FeatureLayers and IN_MEMORY...
View Articleadding a gdb table to an mxd
Hello, I am wondering how to add a gdb table to an mxd map. I've been successful using arcpy.mapping.AddLayer for shape files in a directory, but I don't know how to reference a table within a gdb...
View ArticleEqually divide polyline feature class
I was wondering if anyone knows a way to divide a cities polyline feature class into equal parts. My task is to divide our local utilities gas mains into equal areas then create polygons from these...
View Articlepoint distance/near analysis units?
hi all, have been learning lots here, will have more Qs for sure too... I'm running both point_distance and generate_near_table on a couple of point layers. I often specify a search radius of say 1 or...
View Articlegrouping closely neighboring points
Hi everyone, Im new in using Arcgis and I would like to post a query if somebody could help me. I have points that are close to each other and since there are closely neighboring points I want to group...
View ArticleCreate new feature of population by geoprocessing tols
Please, could you help me. I have a polygon layer representing the buildings of the city. In this layer there is a field indicating the corresponding population of each building. From this building...
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Performance tuning of a Python toolbox gp service
The performance of geoprocessing (services) has improved over the past years and releases. Also, the concept of Python Toolboxes made it easier for me to develop gp services :) Some best practices...
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