Select by location arcgis

A useful application of this behavior is to select adjacent, connected, or nearby features within a layer.

This topic covers examples and expected results of the Relationship parameter options available in the Select Layer By Location tool as well as the Spatial Join tool. Within a distance geodesic. Within a distance 3D. Completely contains. Contains Clementini.

Select by location arcgis

The Select By Location tool lets you select features based on their location relative to features in another layer. For instance, if you want to know how many homes were affected by a recent flood, you could select all the homes that fall within the flood boundary. You can use a variety of selection methods to select the point, line, or polygon features in one layer that are near or overlap the features in the same or another layer. Use the following steps to apply the Select By Location tool. Note that you select features from a layer or a set of layers that have a spatial relationship with features from a source layer. For example, select features from USA Counties that touch the boundary of the features in the layer named "Texas. See Types of supported spatial queries below for an overview of the selection options. The following spatial query methods are supported using Select By Location. In these descriptions, the Target layer is the layer in which features are selected. The Source layer is the layer whose features are used to determine the selection based on its spatial relationship to the target. In the diagrams, selected features are highlighted in cyan where they intersect, touch, or are contained within the red source features, and so on. Intersect returns any feature that either fully or partially overlaps the source feature s. Here are some examples:.

This operator is the reverse of "Completely contain.

Selects features based on a spatial relationship to features in another dataset or the same dataset. Each feature in the Input Features parameter is evaluated using the features in the Selecting Features parameter. If the specified Relationship parameter value is met, the input feature is selected. Learn more about Select By Location including image examples of relationships. If the input is a feature class or dataset path, this tool will create and return a new layer with the result of the tool applied. The coordinate system in which the spatial relationship is evaluated can affect the result. Features that intersect in one coordinate system may not intersect in another.

A useful application of this behavior is to select adjacent, connected, or nearby features within a layer. Different Relationship options can be used to generate the desired analysis or result. For details of how the Relationship options differ, see Select By Location: graphical examples. A loop inside a script or For and While iterators in ModelBuilder can be used in conjunction with this approach to expand a selection based on a number of iterations or until some criterion is met. One common criterion is expand until no new features are added to the selection. The Get Count tool can be used to establish when the number of selected features stops changing therefore stops growing. Below are some examples of analysis performed using this functionality with different types of data and relationship options. The following example expands the selection from a single county to select the adjacent counties, then the operation is repeated two times.

Select by location arcgis

The Select By Location tool lets you select features based on their location relative to features in another layer. For instance, if you want to know how many homes were affected by a recent flood, you could select all the homes that fall within the flood boundary. You can use a variety of selection methods to select the point, line, or polygon features in one layer that are near or overlap the features in the same or another layer. Use the following steps to apply the Select By Location tool. Note that you select features from a layer or a set of layers that have a spatial relationship with features from a source layer. For example, select features from USA Counties that touch the boundary of the features in the layer named "Texas. See Types of supported spatial queries below for an overview of the selection options. The following spatial query methods are supported using Select By Location. In these descriptions, the Target layer is the layer in which features are selected. The Source layer is the layer whose features are used to determine the selection based on its spatial relationship to the target.

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The center of the feature is calculated as follows: for polygon and multipoint, the geometry's centroid is used, and for line input, the geometry's midpoint is used. Last Published: April 25, This is the definition of the Clementini touch operator, so if the target feature touches as defined by Clementini the source feature, it is selected. Only records that are common to both will remain selected. For the Relationship parameter, the Intersect DBMS option may provide better performance than the Intersect option when using enterprise geodatabase data; however, this option is only supported under specific conditions. Distance between features will be calculated using a geodesic method which takes into account the curvature of the earth and correctly deals with data near and across the dateline and poles. Boundary touches. Lines that cross at a point will be selected, not lines that share a line segment. The features in the Input Features parameter will be selected based on their relationship to the features from this layer or feature class. A target feature will be selected if the intersection of its geometry with the source feature is nonempty, but the intersection of their interiors is empty. Select connected roads The approach of expanding a selection is not limited to polygon layers; it can also be used with line data. Selects features based on a spatial relationship to features in another dataset or the same dataset. The Selection Type parameter value is New selection. Expand selection to intersecting polygons The example below uses the Intersect relationship to expand a selection from two origin points. Have their center in — The features in the input layer will be selected if their center falls within a selecting feature.

Selects features based on a spatial relationship to features in another dataset or the same dataset. Each feature in the Input Features parameter is evaluated using the features in the Selecting Features parameter. If the specified Relationship parameter value is met, the input feature is selected.

The input and selecting features must be line or polygon. Search Distance Optional. Intersect DBMS. Crossed by the outline of — The features in the input layer will be selected if they are crossed by the outline of a selecting feature. Feature Layer; Mosaic Layer count The number of selected records. Specify the selection method if you want to change how the selection is applied and what to do if a selection already exists. Feedback on this topic? For some examples, see Select by location within a layer. Share a line segment with. The Source layer is the layer whose features are used to determine the selection based on its spatial relationship to the target. To be selected, all parts of the target feature must completely contain the geometries of the source feature.