How can I create and edit multipart polygons?

How can I create and edit multipart polygons?

You can create, edit, and work with multipart features using editing tools as well as geoprocessing tools. Here are some of the common tasks performed when working with multipart features:

How to separate polygons into individual polygon features?

To separate parts into individual polygon features, you can select them and use the Explode command on the Advanced Editing toolbar. You can also run the Multipart to Singlepart geoprocessing tool. Keep in mind that parts in a multipart polygon are spatially separated. They can touch each other at vertices, but they cannot share edges or overlap.

How to create a polygon feature in ArcGIS?

Click a line feature template in the Create Features window and click the Line tool . Click a polygon feature template in the Create Features window and click the Polygon tool . Click the map to create the segments.

How do you make a polygon on a map?

The Polygon tool creates polygons with multiple segments. You can create segments with the pointer or right-click and type direction and distance values, and use the tools on the construction toolbar to create straight and curved segments. If the current map does not contain a polygon feature layer, add it.

How to reconstruct multipart features from singlepart?

To reconstruct multipart features from singlepart features based on a common field value, such as ORIG_FID, use the Dissolve tool. The input features that can be any feature type. The output feature class containing features that vary with input feature type.

How to convert a multipart to a singlepart in ArcGIS?

A new field, ORIG_FID, will be added to the output feature class and set to the input feature IDs. Each part of a multipart input feature will become an individual singlepart feature in the output feature class.

How to merge multiple shapefiles into a single shapefile?

Question: I have multiple shapefiles of underwater forms (coral reef, outcrop, sandflat, etc) that I would like to combine into a single shapefile. This would make the data easier to manage and I would use a column in the attribute table to delineate each form, rather than have each be in a separate shapefile.

Which is the clip feature in a shapefile?

Clip feature is the layer that you converted from a graphic to a feature. So in this example, the roads would be the input feature, and the circle layer would be the clip feature.

Which is an example of a multipart polygon?

Multipart features are composed of more than one physical part that only references one set of attributes. For example, the individual islands that make up Hawaii are often represented as a multipart polygon feature.

What happens when you split a polygon into two parts?

When splitting part of a multi-part polygon, one part remains with the original (unsplit) feature, while the other part becomes a new feature. The part that remains with the original feature as a multi-part polygon is merged. However, it may be necessary to unmerge and switch the parts of the polygon.

Do you unmerge or merge parts of a polygon?

The part that remains with the original feature as a multi-part polygon is merged. However, it may be necessary to unmerge and switch the parts of the polygon. Consider the island of Borneo to represent a multi-part polygon, with each part belonging to a different country.

How do you reshape a polygon in ArcGIS?

Click the Reshape Feature tool on the Editor toolbar. Click the map to create a line according to the way you want the feature reshaped. You can snap the sketch to the selected edge or cross it to indicate where to start and stop reshaping.

Which is a common polygon editing task in ArcGIS?

Common polygon editing tasks. For example, if you have a parcels layer, you can combine its features to create a subdivisions layer. You can merge two or more polygon features in the same layer to create a new polygon feature. If you have two or more polygon layers, you can aggregate them into one layer.