2/17/2024 0 Comments Grid field type arccatalog![]() To change the null value or associated domain for a field, choose a new value from the drop-down list.To change the alias, default value, or length of a field, double-click the value in the Field Properties list and type a new value.To change the data type, choose a new type from the corresponding Data Type drop-down list.To rename the field, click the text of the name and type a new name.Choose the field to modify from the Field Name list.Right-click the table or feature class and click Properties. ![]() If the table or feature class is in an enterprise, workgroup, or desktop geodatabase, it is necessary to connect as the table owner to modify field properties. Start ArcMap or ArcCatalog and connect to the geodatabase containing the table or feature class to modify field properties.If the table or feature class contains data, you can only increase the field length.įield properties are accessed from the Fields tab of the Table Properties or Feature Class Properties dialog box.įollow these steps to modify existing field properties: Length: If the table or feature class does not contain data, you can increase or decrease this value.Allow or disallow NULL values: If the table or feature class is registered as versioned, you cannot change the Allow NULL values property from Yes to No.For example, you cannot change a long integer or float to a short integer, or change a BLOB to text. Data Type: If the field contains data, you cannot change data types that would lead to loss of data.See Defining feature class properties for a list of these fields. Field Name: Certain system fields cannot be renamed. ![]() For example, if a database does not allow changing the length of a field in a table that contains data, you cannot change the field length through ArcGIS.įield properties that can be altered are as follows: For enterprise geodatabases, the properties that can be changed and how they can be changed depends on the database management system in use only changes can be made that the database allows. Some field properties can be changed after the table or feature class is created. The other properties are dependent upon the data type of the field. In ArcGIS, the first properties to set for a field are its name and data type. To add and view geojson file in ArcMap, just use the Add Data button as you would to add a shapefile or geodatabase feature class - like the example below.All table fields have properties, which are set when a table or feature class is created. I’m using the most current version of ArcGIS Desktop 10.6.1 and ArcGIS Pro 2.2.3. With ArcGIS Pro you have to convert geojson file first to json or something else that ArcGIS Pro can use. I tried to see if I can also view the geojson file in ArcGIS Pro but the file format was not recognized. I guess ArcGIS desktop with the Data Interoperability extension turned on it somehow automatically imported the geojson file in ArcMap for me. I have Data Interoperability extension so was able to just add the geojson file in ArcMap. Note: Viewing geojson file in ArcGIS Desktop and ArcGIS Pro requires a Data Interoperability Extension, and it needs to be activated or turned on first. In this case I would stick with QGIS, but I listed the steps for ArcGIS below for your information. ![]() I’ve tried all 3 different file extensions and they all seem to work.Īdding and viewing geojson data in ArcGIS Desktop and ArcGIS ProĪrcGIS desktop and Pro can also read geojson files but it’ll cost you a pretty penny ($$$) because you need the data interoperability extension. If trying to add the original *.geojson file crashes the you can try changing the files extension to either *.json or even as *.geojson.txt. If you have a geojson file on your local hard drive or network and want to view/use it in QGIS, you can just drag and drop it from the Browser Panel into the Layers Panel or just double click on the file will add it to the Layers Panel. You can try doing one of the following options below to add geojson to QGIS for viewing. QGIS can natively open geojson file but it doesn’t always consistently work – at least for me, and I’m not sure why it works sometimes or doesn’t. ![]() Once you download the geojson file, how do you view it? Anyway, I was interested in seeing what the building footprints look like for Hawaii as well as wanting to do a quick comparison of the Microsoft/Bing buildings outlines to the one that the City and County of Honolulu has and the OSM buildings extract. The Bing building footprints are open source and can be downloaded for use in geojson format - which is what this post is about. ![]()
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