HowTo: Calculate field values from an existing field to a new field in ArcMap
【相关信息】
Article ID: 44672
Software:
ArcGIS - ArcEditor 10
ArcGIS - ArcInfo 10
ArcGIS - ArcView 10
ArcGIS for Desktop Advanced 10.2, 10.1, 10.2.1, 10.3, 10.3.1, 10.2.2
ArcGIS for Desktop Basic 10.2, 10.2.1, 10.3, 10.3.1, 10.2.2, 10.1, 10.1 SP1
ArcGIS for Desktop Standard 10.2.1, 10.1, 10.2, 10.1 SP1, 10.3.1, 10.2.2, 10.3
Platforms: N/A
【问题描述】
The instructions provided below describe how to calculate values from an existing field to a newly created field using the Add Field and Field Calculator tools in ArcMap.
Article ID: 44672
Software:
ArcGIS - ArcEditor 10
ArcGIS - ArcInfo 10
ArcGIS - ArcView 10
ArcGIS for Desktop Advanced 10.2, 10.1, 10.2.1, 10.3, 10.3.1, 10.2.2
ArcGIS for Desktop Basic 10.2, 10.2.1, 10.3, 10.3.1, 10.2.2, 10.1, 10.1 SP1
ArcGIS for Desktop Standard 10.2.1, 10.1, 10.2, 10.1 SP1, 10.3.1, 10.2.2, 10.3
Platforms: N/A
【问题描述】
The instructions provided below describe how to calculate values from an existing field to a newly created field using the Add Field and Field Calculator tools in ArcMap.
1 个回复
EsriSupport
赞同来自:
A. Use the Add Field geoprocessing tool to create a new field.
1. Launch ArcMap.
2. In the Catalog window, navigate to Toolboxes > System Toolboxes > Data Management Tools > Fields > and launch the Add Field tool.
3. Specify the necessary parameters to add the new field; pay attention to the field name and type to ensure the future calculated values are accepted.
ArcGIS Help: ArcGIS field data types.
4. Click OK to run the tool and add the field.
B. Use the Field Calculator to calculate values from an existing field to the new field. 1. Right-click the layer or table to be edited and open the attribute table. -show me-
2. Right-click the field heading for the field that was added above, and click the Field Calculator.
3. In the Field Calculator, use the Fields list and Functions to build a calculation expression. In this case, add the field containing the values to be copied over to the new field to enable the name to display in the expression block.
4. Click OK to run the tool.
【其它相关参考】
【创建及修改时间】
Created: 5/13/2015 Last Modified: 9/10/2015
【原文链接】
http://support.esri.com/en/kno ... 44672
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