• Statistics field for Summary Statistics

    Hi, Sorry if this is not posted in the correct place, but I was not sure where to put it.  I am trying to use the Summary Statistics tool to create a summary table for a polygon layer.  In the Statistics Fie...
    last modified by grastafaram
  • Zonal histogram seems to be stretching values

    The values of pixels in the original raster range from 0-63. However when I make a histogram (Zonal Histogram), using a shapefile as my input zones, I get a distribution of values from 0-255. Any idea how this is happ...
    last modified by ptriv
  • ArcGIS Spatial Analyst Survey

    The ArcGIS Spatial Analyst team would like to get your feedback about the extension. We would appreciate if you will take a moment to answer the questions in this survey. Thank you for helping us making a better ...
    last modified by jlange-esristaff
  • Extract by mask, problem with column and rows

    Reader, We are working on a landuse map from the Netherlands (LGN6) which we extract by mask bassed on several polygons. However the colomns and rows in the new (masked) maps, which are only a small part of the origin...
    last modified by jcjhazenbosch
  • Problem using PYODBC in ArcGIS script

    I am having problems using a python script running as a tool in ArcToolbox (running from ArcMap 9.3).  The script uses the PYODBC connector to use SQL to do summarization of data on an input geodataset.  Whe...
    last modified by jbhalerao
  • Failure or Kriging Tool

    Hello all, A field biologist has point data from sampling locations.  He has used the kriging tool in the past (Spatial Analyst), but now every time he runs it, it returns error: 999999, which tells you absolute...
    last modified by roy_hewitt
  • ArcGIS Spatial Analyst Survey

    The ArcGIS Spatial Analyst team would like to get your feedback about the extension. We would appreciate if you will take a moment to answer the questions in this survey. Thank you for helping us making a better produ...
    last modified by jlange-esristaff
  • Zonal Statistics as Table: Overlapping Polygons: Solution Required

    I'm currently using ArcGIS 10 SP2 on Windows 7 64bit. I'm working on a very large railway alignment design project and need to generate "Average Catchment Slopes" for each watershed. The problem that I have is that th...
    last modified by Playa
  • Find percentage of raster classes inside polygon

    I have a raster representing glacierized area with 2 classes: distinction between ice and snow. I also have DEM of the area. I would like to calculate an average height of the boundary between those two classes. I cam...
    last modified by adamczi
  • Too many contours to TopoToRaster into elevation?

    Simply put, I am trying to convert 10m contours of an island into a rough picture of the elevation - there is no need for high accuracy here Upon running the topo to raster tool it says there are too many points (15...
    last modified by deano87
  • Error in calculating Area Solar Radiation

    I am trying to calculate Area Solar Radiation (Spatial Analyst -* Solar Radiation - Area Solar Radiation) from the Canada3D DEM map.  I always get the following error: ERROR 010016: Error in calculating horizon ...
    last modified by rapinski
  • Intersect stream layer with another layer and preserve its flow direction?

    Hi everyone, I'm wondering if there is a way to intersect a stream segment layer (created by ArcHydro) with another layer (e.g. a grid) but preserve its flow direction (sample in fig. below). The reason for doing thi...
    last modified by madtraveller
  • Convert integer raster grid to float grid using one specific column in VAT

    I have a integer raster grid which has a value attribute table with these column: Rowid, VALUE, COUNT, AWC_100, AWC_150 ... I want to convert that grid to a float one using the column AWC_150 from the VAT in ArcGIS 10...
    last modified by madtraveller
  • Time series interpolation in ArcGIS

    Dear all, I'm trying to calculate average rainfall value from a number of points using Inverse Distance Weighted tool in ArcGIS 9.3. My problem is that: each point has it own time series, therefore the interpolation ...
    last modified by madtraveller
  • Point Solar Radiation tool not working for me

    Hello, I am trying to create a solar radiation output from a 10m DEM (NED) and am running in to the following errors. Error 010016: Error in calculating horizon and radiation Error 010169: Row and column do not ma...
    last modified by allisynh77
  • Calculating surface water runoff volume

    I'm trying to calculate how much water will runoff of a area through a given point.  I have the DEM of my area and the soil data.  I've already delineated the drainage basin that feeds the pour point and cre...
    last modified by adamdezeeuw
  • Zonal statistics - percentiles (reprise)

    Brached from Zonal statistics - percentiles    Hi Xander Bakker    I have also run your multiple raster percentile code. It runs upto loading the created polygon file: execfile(r'...
    last modified by a.potgieter@uq.edu.au
  • Zonal Histogram fails to create table

    When running the Zonal Histogram tool, the Results window say the tool executes successfully after 4.5 hours, but the output table is not created. Right clicking on the output table in the Results window gives the opt...
    last modified by prieger
  • Need a reclassify tool for vector polygons

    I am working with a polygon layer and need to classify three different fields by quartile based on the value for each record.  My field values range from integers to very long decimal numbers.  Essentially...
    last modified by planoc
  • Length of flow paths from catchment boundary to river

    Hi I am trying to calculate the length of the path water would take from a catchment boundary to a river within the catchment (basically the shortest path to the river taking the steepest slope each time from each po...
    last modified by roj046