Latest Contributions by MichaelQuinene

import arcpy from arcpy import env import csv #Location of raster files to be processed rasterWS = "C:/JP2" env.workspace = rasterWS #List of rasters within workspace; may need to change file type rasterList = arcpy.ListRasters("*", "JP2") #Open csv file for writing. #If you wish to append rows to an existing file, change argument to "ab" (append) #Without "ab" argument, an existing file will be overwritten with open("testcsv.csv", "wb") as csvfile:     fileWriter = csv.writer(csvfile)     #Write Column Headers     headers = ["Filename","XMin", "YMin", "XMax","YMax", "ZMin","ZMax","MMin","MMax"]     fileWriter.writerow(headers)     for rasterFile in rasterList:         #Create raster object and get properties         raster = arcpy.Raster(rasterFile)         name = raster.name         extent = raster.extent         #Create list from extent string, prepend filename to list, and write list as row in csv         writeData = str(extent).split()         writeData.insert(0, name)         fileWriter.writerow(writeData) This is a basic script that should get you started.  Change the directory and file type to suit your needs.  Hope this helps. ... View more

Sounds good and could be the wright direction, but when i now dont missunderstood you: how can i automatically combine "influence"polygons (the blue/black/red polygons in the attachment) which have the same date AND are within one same "field"polygon (the green and yellow polygons in the attachment) ? Independent if the influencepolygons touch each other or not. That's not importent. best regards andreas Andreas, I would recommend this: 1) Spatial Join the "field" polygons to the "influence" polygons.  This will give you the attributes of the "field" polygons that intersect (or some other criteria, the tool has several to choose from) the "influence" polygons.  The Intersect tool may be more appropriate if your "influence" polygons overlap more than one "field" or you only want the area contained within the fields. 2) Dissolve the result. Choose the date and field type attributes by which to dissolve; you will then end up with a single polygon for each date that are within a particular field type. Hope that helps ... View more

hello, I captured influenced areas of grasslands once a week and noted different subtype features (polygons) over areas, depending on the degree of influence. Is it possible to combine theses polygons as "one event/one polygon - even tough they are often not conjoined" for further spatial calculations - by using capturedate plus location on the same field as criterion? [ATTACH=CONFIG]16858[/ATTACH] Best regards Andreas Hello Andreas, If I understand your question correctly, it sounds like you want to use the Dissolve tool.  Under the "Dissolve Field(s)" option, choose the date field in your feature class.  If the "create multipart features" box is checked, this will combine all polygons with the same date into a single polygon feature.  If you would rather only combine polygons when are contiguous, uncheck the box.  You will then have several polygons with the same date as several features. Mike ... View more

You can create a value list filter for model parameters, among other filter types. Once the user selects a value, it can be accessed by inline variable substitution. Thank you very much, that was exactly what I was looking for! Mike ... View more