Tag Info

New answers tagged

0

I have a processing model for that: https://github.com/falu/qgis-split-lines-by-polygons. It works only with qgis 2.4


0

In general, their resource page: What is ArcPy? A quick tour of geoprocessing tool references (has python code snippets for each tool) Also, check out this book: Python Scripting for ArcGIS


1

ESRI has a variety of free web-based courses. One that may meet your requirements is called Python for Everyone. The course addresses the following subjects: Choose the Python scripting environment that meets your needs. Choose appropriate data types and apply Python syntax rules when writing a script. Quickly create a script to automate a ...


1

If you are going to be repeating this process or attempting to model/script it...then using a GP tool such as the Union tool as @MAJ742 suggests is certainly the best option and your best answer. If I understand your question correctly and this is a one time thing or you are just playing around with your data...you can try the Clip option on the editing ...


4

Using ArcGIS I would use the union tool. This will give you a layer that combines both the 'purple' and 'green' buffers into a single layer. From this output you can select just the 'green' areas which don't have cover 'purple' areas. You can either do this by looking in the attribute table and select the areas where the purple FID is -1. Alternatively ...


0

If you want learn how to author your own Split By Attribute tool using ArcPy the steps are demonstrated in an eLearning video at Discover Spatial: Using ArcPy Cursors to Split by Attribute and Location (and sharing tools as Geoprocessing Packages) Disclaimer: I am the author and presenter of the above online training course


1

you can do this with the tool called "select layer by location", which runs after you create a layer with "make feature layer". One of the options for spatial relationship, i.e. WITHIN_A_DISTANCE , will do the job.


4

You are spot on, this is called "tiled processing of large datasets", as explained here To improve the performance and scalability of feature overlay tools such as Union and Intersect, operational logic called adaptive subdivision processing is used. The use of this logic is triggered when data cannot be processed within the available amount of ...


0

Its just the way python iterates over lists and/or strings. >>> l = ["Fred"] >>> for i in l: print i Fred >>> l = "Fred" >>> for i in l: print i F r e d >>> inFeatures contains 1 item, the string "E:/Documents". If necessary, create a list first (l = []), then append items to it.


1

Display XY Data > Natural Neighbor Interpolation - use the points you just created as the Input Point Features and the Z value set to average precipitation. That will get you a raster surface of rainfall which you can represent how you choose. *Be aware that with Natural Neighbor Interpolation, you may need to add some 'Anchor Points' so as to ensure ...


0

Build Thiessen Polygons tool would probably accomplish this. Convert the csv to a point file and go from there.


0

This question is a bit old - but thought I'd mention that there is a free script for erasing with an ArcView (standard) licence (from back in the 9 releases). Check it out for future reference: http://arcscripts.esri.com/details.asp?dbid=14625



Top 50 recent answers are included