Expand Collapsed Contours (Maritime)

Disponible avec une licence ArcGIS Maritime.

Synthèse

Expands (pulls apart) contour lines that are snapped together. This preserves representative depth areas.

Utilisation

Attention :

Cet outil modifie les données en entrée. Pour plus d’informations et connaître les stratégies permettant d’empêcher les modifications de données indésirables, reportez-vous à la rubrique Outils qui modifient ou mettent à jour les données en entrée.

• Collapsed vertices (either within a contour or between contours) are pulled apart where possible by pulling them toward the line made between neighboring vertices. Where the angle is too shallow to allow an offset of the specified expansion distance, that vertex will be removed.

• The tool modifies the features in the Target Contours parameter.

• The tool deletes zero-length features.

• The tool snaps points to 10 times the x,y resolution of the target contours when determining collapsed vertices.

• Duplicate vertices on contours are removed.

• The tool messages the feature object ID and collapsed vertices it expands.

• When a collapsed vertex involves an endpoint of a floating contour, a warning message is generated in the output. Ensure that you review any instances identified.

• The Expansion Distance parameter is optional. The default is five times S-57 precision (0.0000005).

Paramètres

Boîte de dialogue

Étiquette	Explication	Type de données
Target Contours	The feature class containing the contours to be expanded.	Feature Layer
Expansion Distance (Facultatif)	The distance that contours will be expanded based on the coordinate system of the target contours. The default is 5e-7 decimal degrees based on the WGS84 geographic coordinate system.	Double

Sortie obtenue

Étiquette	Explication	Type de données
Updated Contours	The updated feature class.	Feature Layer

Python

arcpy.maritime.ExpandCollapsedContours(target_contours, {expansion_distance})

Nom	Explication	Type de données
target_contours	The feature class containing the contours to be expanded.	Feature Layer
expansion_distance (Facultatif)	The distance that contours will be expanded based on the coordinate system of the target contours. The default is 5e-7 decimal degrees based on the WGS84 geographic coordinate system.	Double

Sortie obtenue

Nom	Explication	Type de données
updated_contours	The updated feature class.	Feature Layer

Exemple de code

ExpandCollapsedContours example (Python window)

The following Python window script demonstrates how to use the ExpandCollapsedContours function.

# Import arcpy module  

import arcpy  

 

# Check for Nautical extension  

if arcpy.CheckExtension("nautical") == "Available": 

   arcpy.CheckOutExtension("nautical")  

   print ("License checked out successfully ....")  

   else:  

   raise ex("Maritime license is unavailable.")  

 

#Tool variables  

target_contours = r"C:\ExpandCollapsedContours\Contours.gdb\Nautical\DepthsL" 

expansion_distance = 5E-07 

 

# Run the tool  

arcpy.maritime.ExpandCollapsedContours(target_contours,expansion_distance)

Environnements

Cet outil n’utilise pas d’environnement de géotraitement.

Informations de licence

• Basic: Non
• Standard: Nécessite ArcGIS Maritime
• Advanced: Nécessite ArcGIS Maritime