How to calculate the extent of a feature?
The FeatureLayer API provides a method called queryExtent (), which allows you to calculate the full extent of features at runtime that statisfy a given query. If no query parameters are set, then the method queries for the extent of all features in the layer according to its definitionExpression.
When to zoom to the extent of a featurelayer?
It can be convenient and useful for users to zoom to the extent of all features in a FeatureLayer once an app loads, when a layer is added to the map, or when a layer’s definitionExpression is updated.
What is the output extent setting in Excel?
The Output Extent environment setting defines what features or rasters will be processed by a tool. This setting is useful when you need to process only a portion of a larger dataset. You can think of this setting as a rectangle used to select input features and rasters for processing.
Which is more reliable query or queryextent ( )?
The queryExtent () method is more reliable when working with layers that either don’t have a fullExtent, or the fullExtent doesn’t accurately reflect the extent of the data. Was this page helpful?
What do you need to know about featurelayer?
The layer’s renderer must be of type SimpleRenderer, ClassBreaksRenderer, or UniqueValueRenderer. Color and opacity visual variables must have 8 stops or less. Attribute-driven size visual variables must have 6 stops or less. This does not affect variables driven by map scale. Line symbols must not have arrow markers.
When to set the maximum allowable offset in featurelayer?
Set if the layer failed to load. When the layer is loaded, the value becomes “true”, and layer properties can be accessed. The maximum allowable offset, only applicable for layers that are not editable. The maximum number of results that will be returned from a query.
How to get extent of all features on a vector?
After adding/removing a new feature I would like to automatically zoom and pan the map to fit my features. In the old OpenLayers API there was the getDataExtent function on vector layers to retrieve a “bounding box” around all features shown. But I wonder how to do this with the new API.
Which is an example of an extent tool?
For example, the Intersect tool will only process features that intersect one another, the Union tool processes all features, and the Clip tool will only process features within the extent of the clip features. Union of Inputs —The combined extent of all input data.