1 / 12

Using Model Builder in ArcGIS

sharla
Download Presentation

Using Model Builder in ArcGIS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    1. Using Model Builder in ArcGIS Jill Ory, Jill Ory Consulting (oryj@comcast.net) & Bonneville Environmental Foundation November 10, 2011

    2. Purpose of Training To teach you simple, valuable uses of model builder To show you where to go to learn more

    3. Why Use Model Builder Advantages Paper trail: track analysis steps Quick changes: allows for ease of changing inputs and steps in analysis Automation: To automate repetitive processes

    4. How to Use Model Builder: Getting Started Getting Started (Arc 10.x) Create Toolbox in ArcCatalog Create Model Add toolbox to ArcToolbox To open model, right click and choose edit (not open)

    5. How to Use Model Builder: Example 1 Example 1: Track Complex Analysis (simplest use) Goal: Create a feature class containing a buffer of all the streams in a watershed that is either the extent of the floodplain, or 500 feet whichever is greater.

    6. How to Use Model Builder: Example 1 & Demo 4 step analysis: Clip streams to watersheds buffer streams at 500 feet Clip floodplains to watersheds Union buffer to floodplain Option to use variable inputs/outputs

    7. How To Use Model Builder: Example 1 Benefits: 1) Can repeat the same analysis, just varying the floodplain width, with one tiny change. Don’t have to re-do work. 2) Can remember steps to do this, if asked to repeat this same problem again. 3) Can use a command to clean up interim files.

    8. How to Use Model Builder: Example 2: Iteration Can use to automate repetitive tasks Can iterate through: Features (i.e. streams in a feature class) Datasets Feature Classes Files Rasters Tables Much more

    9. How to Use Model Builder: Example 2: Help & Sample Models A full description and help with each type of iterator can be found in ArcGIS Help or at: http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//00400000001n000000.htm

    10. How to Use Model Builder: Example 2 Iterator demo Goal: To clip streams to individual watershed council boundaries.

    11. How to Use Model Builder: Example 2 Iterator Summary Iterator – use when regular tools aren’t available Use with variables to assign appropriate names to output classes Test on small subsets of data before running numerous iterations

    12. Model Builder Summary Use model builder to track analysis & to leave flexibility for changing inputs/steps. Helps keep files organized, easier to delete interim files. Use it to iterate through tables, feature classes, etc., when you need to accomplish a task that can’t easily be done with existing tools.

More Related