Go To Archived Forums
+ Post New Thread
Page 4 of 41 FirstFirst ... 2 3 4 5 6 14 ... LastLast
Threads 151 to 200 of 2028

Forum: Spatial Analyst

  1. This is a discussion thread Extract by Mask in ArcInfo 10

    Hello, I have problem with "Extract by Mask" function in Arc Info 10. In Arc View 9.3 this function was OK, but in newest wersion I have some...

    Started by KarolinaKorzeniowska‎, 01-25-2011 11:19 AM
    View this thread's RSS feed
    • Replies: 2
    • Views: 1,879
    01-29-2011, 04:29 AM Go to last post
  2. This is a discussion thread Problems with Flow accumulation tool

    I'm still having problems with Flow Accumulation tool in Hydrology/Spatial Analyst. Arcmap shows work in progress (It says: "Updating flow...

    Started by cmcanas‎, 06-15-2011 01:43 PM
    flow accumulation, hydrology tool, spatial analyst tools View this thread's RSS feed
    • Replies: 6
    • Views: 1,854
    06-13-2013, 03:56 AM Go to last post
  3. This is a discussion thread Quadrat Analysis in ArcGIS / ArcInfo

    I'm looking for a way to do the statistical calculations for a Quadrat analysis in ArcGIS 10. (I have an ArcInfo license with Geotstatistical...

    Started by dsharp3‎, 02-15-2011 10:27 AM
    quadrat analysis View this thread's RSS feed
    • Replies: 0
    • Views: 1,834
    02-15-2011, 10:27 AM Go to last post
  4. This is a discussion thread Raster to Polygon fails with empty input

    When I attempt to run the Raster to Polygon tool with a NoData raster (801 rows and 1400 columns), a corrupted shapefile is output and the following...

    Started by jchampagne2‎, 05-07-2010 03:33 PM
    empty, fail, input, polygon, raster View this thread's RSS feed
    • Replies: 2
    • Views: 1,818
    07-26-2011, 02:33 PM Go to last post
  5. This is a discussion thread ArcGIS - spatial analyst extension - map calculator

    I am using spatial analyst to query grid format by using map calculator. Parituculary reclass and slice functions. I am using INFO based remap...

    Started by masoodkhadri‎, 05-30-2010 11:42 PM
    View this thread's RSS feed
    • Replies: 1
    • Views: 1,814
    09-20-2012, 08:10 PM Go to last post
  6. This Q&A thread has not been answered Calculating Each Cell's Area in a Raster

    Hi, I have a dataset that was originally in a decimal degrees projection. It is a raster of the globe, in 5 arc minute resolution. The...

    Started by jmav00‎, 01-11-2012 08:49 AM
    View this thread's RSS feed
    • Replies: 5
    • Views: 1,812
    01-11-2012, 01:05 PM Go to last post
  7. This Q&A thread has not been answered idw or kriging? why use one rather the other

    Hello, I am an Italian student of a Master in G.I.S. and remote sensing: I am going to discuss the thesis in 1 month and I'd like to know one...

    Started by giac85‎, 09-06-2012 12:00 AM
    View this thread's RSS feed
    • Replies: 2
    • Views: 1,812
    09-07-2012, 01:07 AM Go to last post
  8. This is a discussion thread Planform Curvature values much too high

    I am having trouble producing a planform curvature output. I'm unsure what units to use and the spatial analysis documentation seems sketchy. The...

    Started by stanhopkins‎, 08-30-2010 09:27 AM
    • Replies: 16
    • Views: 1,810
    03-29-2014, 11:43 AM Go to last post
  9. This is a discussion thread Beta 10: Spatial Analyst - Python - FocalStatistics statistics types

    Is it true that the FocalStatistics function in Python is supporting less statistics types? I'm missing the following: MAJORITY MEDIAN...

    Started by xander_bakker‎, 11-10-2009 02:32 AM
    • Replies: 3
    • Views: 1,809
    11-18-2009, 09:47 AM Go to last post
  10. This is a discussion thread 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...

    Started by planoc‎, 11-13-2011 10:29 AM
    quartiles, reclassify, vector View this thread's RSS feed
    • Replies: 4
    • Views: 1,806
    03-08-2012, 04:48 AM Go to last post
  11. This is a discussion thread Calculating population density by neighbourhood

    Hello, I have a population density raster (pop per square km on 10m grid cells) and a neighbourhoods polygon shapefile. I want to know the...

    Started by m.cain‎, 12-05-2010 11:32 PM
    View this thread's RSS feed
    • Replies: 2
    • Views: 1,786
    12-06-2010, 06:45 AM Go to last post
  12. This Q&A thread has not been answered Raster to polygon problems

    Hi, I am trying to convert a raster to polygon in ArcGIS 10. I initially used the Extract by Attributes tool to isolate elevation ranges between...

    Started by grastafaram‎, 04-25-2012 12:23 PM
    • Replies: 3
    • Views: 1,785
    04-27-2012, 07:25 AM Go to last post
  13. This is a discussion thread Hillshade displaying contours (smoothing is not working)

    Hi, I have made a hillshade feature class from a raster. This raster was based off 5m contour lines. The hillshade is made and works fine, however...

    Started by Chris.scarp‎, 05-17-2010 11:48 AM
    View this thread's RSS feed
    • Replies: 4
    • Views: 1,784
    05-18-2010, 11:09 AM Go to last post
  14. This Q&A thread has been answered map algebra expression / raster calculator arcmap10

    hey folks, i’ve got a problem concerning the raster-calculator-tool in arcmap 10. I hope someone can help me. excuse my poor english skills… the...

    Started by max1987‎, 05-23-2012 03:56 AM
    arcgis 10 spatial analyst, hydrology toolset, map algebra expression, raster calculator View this thread's RSS feed
    • Replies: 2
    • Views: 1,780
    05-23-2012, 06:18 AM Go to last post
  15. This is a discussion thread Hydrology Flow Direction tool output "incorrect" when setting z limit

    ArcGIS v10 sp1, 64 bit Vista: I've never seen this happen before, but I haven't done a hydrology analysis since installing v10. When running the...

    Started by wesley.king‎, 06-03-2011 06:58 AM
    • Replies: 11
    • Views: 1,777
    06-20-2013, 11:47 AM Go to last post
  16. This is a discussion thread Calculating the area and the percent of cells of each value in a raster! Automaticall

    Calculating the area and the percent of cells of each value in a raster! Automatically? please, see the attached images that show my question ...

    Started by Jamal432@gmail.com‎, 06-02-2011 06:01 AM
    • Replies: 10
    • Views: 1,769
    09-29-2012, 12:17 PM Go to last post
  17. This Q&A thread has not been answered Creating a Hillshade from Mosaic DEM

    I am having problems creating a Hillshade from a mosaic DEM I made with 10m USGS seamless data DEM's. I go to the Spatial Analyst tool "Hillshade"...

    Started by mmichale‎, 02-24-2012 08:17 AM
    • Replies: 9
    • Views: 1,757
    03-23-2012, 04:51 AM Go to last post
  18. This is a discussion thread raster calculator syntax error

    Hi; I'm trying to create soil erosion risk map with rusle method. I would like to calculate rainfall erosivity factor with this formula ((((( / )...

    Started by resat10‎, 05-23-2010 06:25 AM
    View this thread's RSS feed
    • Replies: 1
    • Views: 1,752
    05-24-2010, 02:34 AM Go to last post
  19. This is a discussion thread Extract Values To Points problem

    Hello, In ArcGIS 10, tool Spatial Analyst > Extraction > Extract Values to Points works when the output is written to a file geodatabase but fails...

    Started by NF_MikeS‎, 03-01-2011 06:18 AM
    extract, extraction, file geodatabase, spatial analyst View this thread's RSS feed
    • Replies: 6
    • Views: 1,741
    01-14-2014, 05:10 AM Go to last post
  20. This is a discussion thread Predict Flood Waters - How To?

    Does anybody know how to step by step predict where the flood waters will go given a certain rise in the water body's height? I have the water body,...

    Started by pfrey17‎, 12-01-2010 08:56 AM
    arcgis, emergency, flood, water View this thread's RSS feed
    • Replies: 4
    • Views: 1,733
    12-02-2010, 11:20 AM Go to last post
  21. This is a discussion thread tabulate area errors

    :confused:Hello to the GIS community, I am using the tabulate areas command. I keep getting different error messages. Here are two messages that...

    Started by debralynn‎, 05-20-2010 10:25 AM
    View this thread's RSS feed
    • Replies: 2
    • Views: 1,729
    05-21-2010, 11:25 AM Go to last post
  22. This Q&A thread has not been answered Need to calculate several polygon`s average slope

    Hi All I need to calculate several land parcels average slope and insert it into the attributes table. As a side note I need to do the same for...

    Started by Frikan‎, 02-13-2012 09:38 PM
    dem, slope, tin View this thread's RSS feed
    • Replies: 3
    • Views: 1,719
    02-20-2012, 03:08 AM Go to last post
  23. This Q&A thread has been answered Point Density Question

    I am doing a point density analysis on about 1500 points across southern California. The tool and results are working correctly, but value's assigned...

    Started by VetteTizom‎, 02-21-2012 09:30 AM
    • Replies: 8
    • Views: 1,710
    06-20-2012, 12:03 PM Go to last post
  24. This is a discussion thread Calculate the shortest distance across a polygon.

    Hi all, I appologise in advance here as I am flying a bit blind. I am trying to find a method to calculate the shortest distance across a polygon....

    Started by roryhall‎, 11-04-2010 01:53 PM
    View this thread's RSS feed
    • Replies: 4
    • Views: 1,709
    11-08-2010, 06:04 AM Go to last post
  25. This is a discussion thread Area density calculation

    Dear all, I would like to know how my approach is right or wrong. My goal is to get solve this equation in arcGIS; S = S1 / S2 where, S:...

    Started by taihoon‎, 10-08-2010 12:46 PM
    View this thread's RSS feed
    • Replies: 0
    • Views: 1,703
    10-08-2010, 12:46 PM Go to last post
  26. This is a discussion thread Unable to produce usable contours & hillshade from GeoBase 1:50K dem

    Hello, The only source of decent country-wide coverage of 1 arc-second (0.75 - 3arc) or roughly 30m resolution dem in Canada seems to be GeoBase...

    Started by jakubsisak‎, 09-08-2010 12:40 PM
    • Replies: 5
    • Views: 1,700
    09-09-2010, 11:46 AM Go to last post
  27. This is a discussion thread Extract by Mask Rasters don't line up with originals

    Hello all, I am working with some Landsat imagery that I need to extract certain areas of the raster. I've tried extracting by a polygon mask. The...

    Started by kpzimmer‎, 10-21-2010 02:44 PM
    extract by mask, raster View this thread's RSS feed
    • Replies: 5
    • Views: 1,699
    11-29-2012, 02:42 PM Go to last post
  28. This is a discussion thread Slope Density Calculation

    Hi all, I've a tif image and need to calculate slope density using the following formula: S = (0.00229 x IL)/A; where: S = average slope in...

    Started by mabsplanner‎, 08-19-2011 01:37 AM
    calculation, density, raster, slope, tif View this thread's RSS feed
    • Replies: 1
    • Views: 1,698
    08-24-2011, 12:09 PM Go to last post
  29. This is a discussion thread Extract by Attributes - Spatial Analyst Tool - Acceptable Fields in Query

    Anyone know if you can use the Extract by Attributes tool with fields other than the Value field? I am trying to extract cells from the output of a...

    Started by bcohen‎, 04-20-2010 11:40 AM
    View this thread's RSS feed
    • Replies: 1
    • Views: 1,693
    04-21-2010, 11:54 PM Go to last post
  30. This is a discussion thread shortest path over a cost raster between two points

    Hi everyone, as always simple questions may have difficult answers. I just have this: 1) a set of 400 points, for which I need to find the...

    Started by stelder‎, 10-18-2010 05:01 AM
    1 Deleted Post(s) View this thread's RSS feed
    • Replies: 8
    • Views: 1,692
    10-24-2010, 11:36 PM Go to last post
  31. This is a discussion thread Getting 010089 error message when running topo to raster

    Hello - I am trying to create a DEM using a number of different inputs including contours, elevation points, streams and lakes. I can create a DEM...

    Started by pheersink‎, 06-08-2011 08:29 AM
    View this thread's RSS feed
    • Replies: 4
    • Views: 1,687
    06-08-2011, 09:53 AM Go to last post
  32. This is a discussion thread Bldg Shapefile (polygon zm) Calculations

    Hi. I have a buildings shapefile that shows geometry as a polygon zm. (If I remember correctly that is probably from an original conversion from...

    Started by gaiaearth‎, 12-20-2010 08:34 AM
    3d area calculations, polygon zm View this thread's RSS feed
    • Replies: 1
    • Views: 1,682
    12-21-2010, 08:13 AM Go to last post
  33. This is a discussion thread Raster Calculator - Mathematical Operation

    Hi All, I have several multiple observer viewsheds created in ERDAS and saved out as .img files. I broke up the area to be covered into segments...

    Started by dwightlanier‎, 02-01-2011 10:26 PM
    View this thread's RSS feed
    • Replies: 2
    • Views: 1,678
    02-02-2011, 09:42 AM Go to last post
  34. This is a discussion thread Beta 10: Spatial Analyst - Viewshed

    When I was setting the parameters for doing a viewshed analysis, the point file that I added two new fields to, appeared twice in the drop down menu....

    Started by ccorwin15‎, 11-19-2009 07:16 AM
    Beta 10 View this thread's RSS feed
    • Replies: 1
    • Views: 1,677
    12-08-2009, 11:46 AM Go to last post
  35. This is a discussion thread Map algebra help in arcmap 10 Python Window

    Map algebra help in arcmap 10 Python Window I started to use arcmap 10 lately, but found that they changed the syntax for map algebra, for...

    Started by hrbo‎, 02-01-2011 10:43 AM
    View this thread's RSS feed
    • Replies: 1
    • Views: 1,676
    02-01-2011, 11:55 AM Go to last post
  36. This is a discussion thread Extensions issue

    Hi there, I just downloaded the 60 day trial last night to get my feet wet again with GIS (it's been about 3-4 years since I last had a chance to use...

    Started by valhalarising‎, 10-26-2010 04:30 AM
    • Replies: 7
    • Views: 1,673
    03-16-2011, 02:08 PM Go to last post
  37. This is a discussion thread Raster analysis - Single Output Map Algebra function

    Hi, hoping someone can help me. I'm trying to use the max and min values of two raster layers (layer_temp and layer_prec) to analyse two other...

    Started by GIH‎, 11-30-2010 01:59 PM
    analysis, map, output, raster, single View this thread's RSS feed
    • Replies: 2
    • Views: 1,672
    12-08-2010, 06:40 AM Go to last post
  38. This Q&A thread has not been answered Viewshed and watershed begginer tutorials, arcgis 10

    Hi, I have been looking online all over the place but I have not been able to find a tutorial that clearly and simply describes step by step how...

    Started by matthieumayer01‎, 10-28-2012 07:52 PM
    arcgis 10, tutorial, watershed View this thread's RSS feed
    • Replies: 2
    • Views: 1,664
    10-29-2012, 10:53 AM Go to last post
  39. This is a discussion thread Viewshed analysis: Am I using the correct methodology?

    Hi, I have a project which entails doing a visibility impact analysis of planned and existing wind turbines and windparks. I will be doing this...

    Started by robertdbuckley38‎, 03-10-2011 06:29 AM
    spatial analyst, viewshed analysis, wind turbine View this thread's RSS feed
    • Replies: 0
    • Views: 1,661
    03-10-2011, 06:29 AM Go to last post
  40. This Q&A thread has not been answered Reclassify won't run... what to do?

    Hello, I am building a suitability model that requires me to reclassify raster layers, but I cannot get the "Reclassify" tool in Spatial Analyst...

    Started by smith984‎, 03-22-2012 11:24 AM
    arc 10, error 999998, raster, reclassify, spatial analyst View this thread's RSS feed
    • Replies: 14
    • Views: 1,656
    01-24-2013, 08:15 AM Go to last post
  41. This is a discussion thread Merging Raster layers

    I have a series of raster data that I need to combine and get as sum of the values. One is an overlay of slope and another is the river data. The...

    Started by digger8169‎, 12-19-2010 08:55 PM
    View this thread's RSS feed
    • Replies: 1
    • Views: 1,653
    12-20-2010, 07:09 AM Go to last post
  42. This is a discussion thread Interpolation and Calculating Area

    I am relatively new to ArcView, and was wondering if there is a way to calculate area based off of the area covered by a certain color of IDW...

    Started by darais‎, 05-11-2010 11:08 AM
    area, extents, idw, interpolation View this thread's RSS feed
    • Replies: 1
    • Views: 1,651
    05-11-2010, 11:54 AM Go to last post
  43. This is a discussion thread Zonal Statistics Failure in ArcGIS 9.3.1

    There seem to be a number of posts all around this problem, without a definite resolution. I encountered the following today when attempting to run...

    Started by bsaunders‎, 12-08-2010 12:14 PM
    View this thread's RSS feed
    • Replies: 2
    • Views: 1,640
    01-07-2011, 03:12 PM Go to last post
  44. This is a discussion thread 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...

    Started by rapinski‎, 12-09-2010 08:42 AM
    View this thread's RSS feed
    • Replies: 1
    • Views: 1,633
    12-09-2010, 11:58 AM Go to last post
  45. This is a discussion thread density analysis from polygons

    Hi- I am creating density maps from polygons (.shp), which has involved many time consuming steps and I was hoping to simlify the process. I have...

    Started by msmith200‎, 10-22-2010 09:07 AM
    density analysis, polygons View this thread's RSS feed
    • Replies: 1
    • Views: 1,630
    10-22-2010, 09:25 AM Go to last post
  46. This is a discussion thread Distance calculation error

    Hello, I am trying to calculate straight line distances from a raster layer but i keep getting errors. In the spatial analyst toolbox, i clicked...

    Started by alhazrad‎, 02-03-2011 03:38 PM
    010267, 010328, spatial analyst error View this thread's RSS feed
    • Replies: 4
    • Views: 1,629
    12-07-2011, 11:28 PM Go to last post
  47. This is a discussion thread Grid has no VAT. Failed to execute Zonal Statistics error

    Good morning. I want to perform a zonal statistics by table. My input zone data is a shapefile that consistis of 186,200 square polygons. Hence, I...

    Started by JuliaL‎, 02-06-2011 07:23 AM
    View this thread's RSS feed
    • Replies: 2
    • Views: 1,620
    02-12-2011, 07:12 PM Go to last post
  48. This is a discussion thread Calculating Vertical Relief of Features

    I've created a raster from a DEM that contains percent slope values. I'm only concerned with the slopes with vertical relief of ten or more feet....

    Started by smithe23‎, 10-20-2010 12:14 PM
    View this thread's RSS feed
    • Replies: 1
    • Views: 1,617
    10-21-2010, 08:20 AM Go to last post
  49. This is a discussion thread GIS Tools for Land Cover Change

    Hi! Wich tools are normally used to quantify and locate land-cover changes (in particular degradation and regeneration)?

    Started by pmusseraviola‎, 09-21-2011 05:39 AM
    View this thread's RSS feed
    • Replies: 5
    • Views: 1,614
    10-07-2011, 04:51 AM Go to last post
  50. This is a discussion thread Reclassify NoData to 0 - different behaviour in v10

    Good day, A technique that I've used extensively in v9.3 is the Reclassify tool with a single Remap term ";NODATA 0". This keeps all existing...

    Started by rgreenenf‎, 08-06-2011 10:30 AM
    reclassify nodata 10 View this thread's RSS feed
    • Replies: 1
    • Views: 1,612
    08-06-2011, 10:58 AM Go to last post

+ Post New Thread
Page 4 of 41 FirstFirst ... 2 3 4 5 6 14 ... LastLast

Thread Display Options

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.

Order threads in...

Note: when sorting by date, 'descending order' will show the newest results first.

Icon Legend

Contains unread posts
Contains unread posts
Contains no unread posts
Contains no unread posts
More than 25 replies or 300 views
Hot thread with unread posts
More than 25 replies or 300 views
Hot thread with no unread posts
Closed Thread
Thread is closed
Thread Contains a Message Written By You
You have posted in this thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts