Terrain - a suite of GIS tools for calculating slope, roughness, aspect. Additionally, it contains tools for repairing surface models, i.e., spikes, holes. It can handle any LAS 1.0, 1.1, 1.2, 1.3 and 1.4 with point format from 0 to 10. Mar 08, 2012 Valid input formats are shapefile and feature classes stored in a personal geodatabase or file geodatabase. For more information, see Checking and repairing geometries. ArcSDE geodatabases automatically check each geometry's validity when it is uploaded; therefore, the Check and Repair Geometry tools are not for use with ArcSDE geodatabases.
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ArcGIS 10.0Sometimes you receive a shapefile from a client or coworker and get to work, only to be interrupted by a dialog message telling you that our shapefile is corrupt or invalid. There’s quite a few ways for shapefiles to be broken and thus to repair them, so I am going to show you two methods that have worked for me before: 1) the Repair Geometry tool, and 2) exporting feature classes to a geodatabase.One of the first things I try is the Repair Geometry tool, located in Data Management - Features. This tool overwrites the target file, so it’s worth making a copy of it first.
It may also delete some features that have invalid geometry, so if you lose some records you need, there may be other restoration options that work better.The second method involves adding the shapefiles to a File Geodatabase and then working with them, which often fixes the problem. The first step in this method is to remove the shapefile in question from any running ArcMap sessions and open ArcCatalog.The first step is to create a File Geodatabase. Right click in the Contents window and hover over New, then click on File Geodatabase.File Geodatabases are an ESRI format that acts somewhat like a file folder does. You can’t just drag files into it, however, (at least in 10.0).
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Instead, to add files you right-click on the File Geodatabase (or “.gdb”) and hover over Import, then select Feature Class (multiple).From here you’ll see an ArcTool-like dialogue window. You can drag shapefiles or tables directly onto the large middle pane, or use the browse button to find files, which are then added to the middle list. In this case, we are adding the shapefiles that are broken / causing our tools to malfunction. The Output Geodatabase field should already be filled in, as we ran it from the right-click menu.Once that is done, in ArcCatalog you’ll see that your.gdb now has your shapefiles in it, and you can run your processes and see if the problem was fixed.
If not, there are a lot of resources waiting out there, but these two methods are good quick methods to try first.
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February 2023
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