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Tim, I got it to work! The problem was not saving the clip output into a file geodatabase. As soon as I set the export path to a geodatabase, the raster successfully clipped to the polygons. Thanks again for your help! Aakash
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08-21-2013
07:03 AM
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Tim, When I try method 2 the "Selected graphics" field is gray, and won't let me check it off. You're right! There must be a very simple solution to this. Now to attempt the "erase" tool Best, Aakash
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08-20-2013
12:07 PM
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Tim, I've tried both, to no avail. Further, the error message i receive is a generic error (Error # 99998) and does not specify what is wrong when trying to perform the function. I have also tried to reproject the raster to the same coordinate system as the polygons (NAD 1983 UTM 18 N) but I am receiving errors when trying to do this as well. I have tried restarting GIS, reloading the necessary layers and repeating these steps as well. I am going to give the "erase" tactic a shot momentarily Thanks for your continued responses! Aakash
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08-20-2013
11:44 AM
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Tim, Many thanks for your answer. I have to perform this operation for ~1500 polygons that overlap at times. I think the erase tool may complicate things.. any other suggestions? Thanks again Aakash
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08-20-2013
11:25 AM
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Hello, I need to "punch out" a series of polygons from a raster dataset. A suitable analogy would be cutting out cookies of various shapes from a sheet of cookie dough. The polygons are feature classes. The raster type is a "file system raster". I have tried the "clip" and "extract by mask" tools but have had no success as of yet. Any troubleshooting tips are appreciated! Thanks! Source: Graduate student in Geology/Geophysics.
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08-20-2013
10:52 AM
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Dan, Thanks again. Once again, I am unable to connect the output from Iterate Field Values tool to the Watershed tool. Even if I connect the output to the Copy Features tool and try to connect the output of that to the watershed tool, it only lets me connect as a "precondition" and not the "feature or pour point data" that the watershed tool requires. I am having limited degrees of success running the tool through batch mode, however. If you have further insights they would be much appreciated. Your responses have helped me strengthen my understanding of model builder and approach a problem from a multitude of different ways. Best, Aakash
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08-05-2013
10:06 AM
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Hi Dan, Many thanks for your answer. I tried using the iterate feature classes tool. However, the data set that I have is not a geodatabase. Here is the source info: Data Type: File Geodatabase Feature Class Database: C:\Users\ahameda\Documents\ArcGIS\Aakash Data.gdb Feature Class: Res_Sed_IFC Feature Type: Simple Geometry Type: Point The GDB that it is saved in has other files as well. This iterator will only let me select geodatabases. When I try to apply the iterate field value tool, it will not let me connect the iterator's output to the watershed function in model builder. Should I create a separate gdb with just this file in it? And then use the iterate feature classes tool? Could batch processing solve this problem? Any further input appreciated. Your comments have been helpful and I am close to solving this problem! Thanks again, Aakash
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08-02-2013
07:18 AM
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Hello all, I have developed a tool that defines watershed area for a given (x,y) point in model builder. The tool is attached. I want to run this tool for a database of about 500 (x,y) points. Which iterator function should I use to accomplish this? "Multivariate" seems like what I want, but I cannot get the tool to execute for multiple datapoints. An input of 1 data point works fine. The top left parameter is an enclosing HUC and the bottom parameter is the point from which the watershed is calculated. I need to perform this function for a series of ~500 points. I am sure there are multiple ways to do this. I tried setting the "reservoir outlet" parameter to "list of values" instead of single value, but this does not accomplish what I need. Any input appreciated!
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08-01-2013
10:31 AM
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Hello all, I need to create a model or script (using either the model builder function or a python script) that automates a series of steps involving data management and spatial analyst tools and applies them to imported Digital Elevation Models (DEMs) and lat long data points. What is the best way to way to automate these steps so I can just run this model for each datapoint (of which there are over 1000) as opposed to processing each point individually and going through the tedious series of steps? Any input is appreciated, and many thanks in advance. Source: Graduate student in the Earth Sciences.
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