Rule files for bridge offsets

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Predefined .xml bridge offset rule files that can be used for cartographic production by the Apply Building Offsets tool are included in a product file installer available for ArcGIS Production Mapping and ArcGIS Defense Mapping.

警告：

Modifying these files may result in errors or unexpected behavior.

Learn more about Defense Mapping product files

Learn more about Production Mapping product files

The .xml files define the rules for how bridge features are offset in a layout. They are intended for use with the layout that comes with the product files. This layout has the bridge, culvert, and dam symbols configured to use values specified in the rule file. Otherwise, a custom layout must be configured to use attribute-driven symbology.

The following XML example demonstrates the basic structure of a bridge offset rule file.

<TopographicOffsets title="MGCP_50K" version="10.2.0.0" referencescale="50000">
 <BridgeOffsets>
  <BridgeOffset expandmarker="False">
   <InputFeatures layer="BridgeL - NotBlue072">
   </InputFeatures>
   <OverpassFeatures layer="RoadL">
   </OverpassFeatures>
   <Offset units="Points">
    0
   </Offset>
   <MinimumLength units="Millimeters">
    1.5
   </MinimumLength>
   <SearchDistance units="Meters">
    0
   </SearchDistance>
  </BridgeOffset>
 </BridgeOffsets>
</TopographicOffsets>

BridgeOffset element

The following table provides details for each child element of the BridgeOffset element:

BridgeOffset

Element	Details
InputFeatures	The feature class that contains the bridge features that will be offset. 注： This can include a Query child element that contains an expression in an Expression element to account for subtypes or other attribute combinations.
OverpassFeatures	The feature class that contains the features that overpass the bridges. 注： This can include a Query child element that contains an expression in an Expression element to account for subtypes or other attribute combinations.
Offset	An offset that is added to the bridge width. You can specify the unit of measurement. The example above uses points.
MinimumLength	The minimum length of a line bridge. Line bridges that are shorter than the value specified will be extended to meet the length specified. You can specify the unit of measurement. The example above uses millimeters.
SearchDistance	The distance that point bridge features are buffered when identifying the overpass features. You can specify a unit of measurement. The example above uses meters.

提示：

The BridgeOffset element defines values that are used to perform a similar function as the Calculate Bridge Offsets tool. Child elements of the BridgeOffset element are the same as the parameters of that tool. Several bridge offsets can be applied when the .xml rule file is used in the Apply Building Offsets tool, but only one offset can be applied with each run of the Calculate Bridge Offsets tool.