Latest Contributions by AndrewWindham

I am using ArcGIS 10.3 basic desktop to interpolate GPS soil points and then create a lime prescription map. I can easily interpolate the points however when I use the field calculator to enter the target lime formula for the desired pHw level I get an error message of 99999 that says a field name was not found or there were unbalanced quotation marks. The formula was produced by a leading university and has been used in numerous types of software so I don't believe it is the problem. Thanks ... View more

  I am using ArcGIS 10.2 in order to create soil management zones for farmers. The above image represents realistic looking management zones however when I use the raster to polygon tool it create small triangles and very unrealistic looking zones. See image below. I have used the smooth polygon tool, as well as the nibble, focal statistics and majority filter while the files is still a raster in order to reduce the number of zones. Any ideas on an effective way to do this? Thanks ... View more

I have created a custom color ramp in a geostatistical analyst layer and also have created custom unique value ranges that were created manually to go with the symbology. I need to export the GA Layer to a raster and apply the symbology from the GA Layer to the newly created raster. Because this was created in a GA Layer importing the symbology into the raster layer will not work because they are different data types. . Also I can not figure out how to input custom unique ranges using classified symbology in a raster. Also if this could be done in a step in model builder that would be great!  Any help would be appreciated. ... View more

Hello I am trying to take a point data file of soil phw values from soil samples taken in the field and automate the process of kriging using model builder in ArcGIS 10.2. First I need to run the kriging analysis using geostatistical analyst. Secondly I need to export the kriging into a raster format and clip the boundaries of the raster to a field boundary shapefile and then send data to mxd with predefined coordinate system and legend and if possible text that can be changed when needed. Is this possible using modelbuilder? Thanks for any help one can provide! ... View more

I have built a model in model builder that is supposed to take an unprojected shapefile join it to an excel table field  project the joined shapefile and then perform kriging using Geostatistical Analyst and then clip the raster output to a boundary. The model in the image below will project both the boundary and the raster however it will not clip the raster and when it is added to the map the boundary and the raster will not display in the same map as if the coordinate systems are different. I am not a programmer and an intermediate level GIS user I could really use some help!   Thanks ... View more

I am new to GIS and am looking to use model builder in ArcGIS 10.2 to build a model that will take raw data such as a text file with attribute data and link it with a shapefile and then use kriging to interpolate the soil points and clip the resulting raster file to a specified polygon boundary. I have thousands of acres of soil points that I need to do this on. Any ideas? ... View more

I am trying to automate the process of creating soil sample points in ArcGIS I have an ANSI text file with no lat long just attributes. I need to organize the attributes in the text file and link to a point file in as few steps as possible. Any ideas for automation? ... View more