ArcGIS – Select by Attributes & Select by Location скачать в хорошем качестве

ArcGIS – Select by Attributes & Select by Location

How to Use Select by Location 1. **Open ArcGIS Pro/ArcMap**: Open your project in ArcGIS Pro or ArcMap. 2. **Add Data**: Ensure both the target layer (the layer to be selected) and the source layer (the layer used to query against) are added to the map. 3. **Access Select by Location**: In ArcGIS Pro: Go to the *Map* tab and click on the *Select by Location* tool. In ArcMap: Go to the *Selection* menu and choose **Select by Location**. 4. **Set Parameters**: **Target Layer**: Choose the layer you want to select features from. **Source Layer**: Choose the layer to base the selection on. **Spatial Relationship**: Select the spatial relationship type (e.g., **Intersect**, **Within a Distance**, **Contain**, **Touch the Boundary Of**, etc.). **Optional Filters**: You can refine the selection by using options like **Selecting features from currently selected features**. 5. **Execute the Selection**: Click *Apply* or *OK* to perform the selection. The features that meet the spatial criteria will be selected and highlighted. 6. **Clear Selection**: Similar to Select by Attributes, use *Clear* on the *Map* tab in Pro or *Clear Selected Features* in the *Selection* menu in ArcMap to clear the selection. *Differences Between Select by Attributes and Select by Location* **Select by Attributes**: Uses attribute data (e.g., population, type, ID) to select features. Relies on SQL expressions to filter data. **Select by Location**: Uses spatial relationships (e.g., proximity, containment) to select features. Requires two layers: a target layer (for selection) and a source layer (for spatial criteria). *Use Cases* **Select by Attributes**: Find all cities with a population greater than 100,000. Select all parcels zoned as "Residential." **Select by Location**: Select all buildings within 500 meters of a river. Find all roads that intersect with a specific boundary. Both tools are powerful for querying and analyzing spatial data, depending on whether your criteria are based on attributes or spatial relationships.