Select by location arcgis

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.

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. Share a line segment with.

Select by location arcgis

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. The example below uses the Intersect relationship to expand a selection from two origin points. The approach of expanding a selection is not limited to polygon layers; it can also be used with line data. Below is an example of expanding a selection of streets that are connected to the original selection.

E, I, L. Are identical to — The features in the input layer will be selected if they are identical in geometry to a selecting feature. Back to Top.

Frequently asked question. Frequently asked question What does each of the Select By Location methods mean? Last Published: April 25, A variety of selection methods can be used to select the point, line, or polygon features in one layer that are near or overlap the features in the same or another layer. Click 'show me' for information on each selection method. As its name implies, it returns any feature that geometrically shares a common part with the source feature s. There are a few other operators that are equivalent to intersect for specific uses, for instance: Are identical to, when comparing point features.

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.

Select by location arcgis

Selects features in a layer based on a spatial relationship to features in another layer. Each feature in the Input Feature Layer is evaluated against the features in the Selecting Features layer or feature class; if the specified Relationship is met, the input feature is selected. Graphic examples of relationships.

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Specify the spatial relationship rule if different from the default. Different Relationship options can be used to generate the desired analysis or result. A geoprocessing tool using the layer as input will use no records from the input. Two features are considered identical if their geometries are strictly equal. D, H, I, M. This would be true for all counties that do not fall along Texas's boundary. The input and selecting features must be lines or polygons. In addition, the source feature cannot touch or overlap the target's boundaries. Completely contains — The features in the input layer will be selected if they completely contain a selecting feature. Boundary touches — The features in the input layer will be selected if they have a boundary that touches a selecting feature. Specifies how the selection will be applied to the input and how it will be combined with an existing selection. The following spatial query methods are supported using Select By Location. The highlighted cyan features are selected because they share a line segment with a red feature. The example below uses the Intersect relationship to expand a selection from two origin points.

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.

For some examples, see Select by location within a layer. Click 'show me' for information on each selection method. The Intersect relationship selects any street that touches the selected street, while the Boundary touches relationship only includes the streets that have an endpoint no overlap on selected roads. This can be useful for determining if any features matched the desired spatial relationship before proceeding to further analysis as part of an automated workflow that is, script or model. Use the following steps to apply the Select By Location tool. To be selected, the geometry of the source feature must fall inside the geometry of the target feature including its boundaries. The target feature must be a polygon. Contains Clementini — This spatial relationship produces the same results as the Contains option except that if the selecting feature is entirely on the boundary of the input feature no part is properly inside or outside , the feature will not be selected. Consider the following when using this spatial relationship option: The following requirements are necessary for the operation to run in the DBMS: The Input Features and Selecting Features parameter values must be from the same enterprise geodatabase workspace and have the same spatial reference and geometry storage type. All records that were selected will be removed from the selection, and all records that were not selected will be added to the selection. Select connected roads The approach of expanding a selection is not limited to polygon layers; it can also be used with line data.