Overlay combines two layers into a single layer. You can think of overlay as peering through a stack of maps and creating a single map containing all the information from in the stack. Overlay is more than a merging of line work; all of the attributes of the features in the overlay are carried through to the final result. Overlay is used to answer one of the most basic questions of geography, "What is on top of what?" The following are examples:
If Use current map extent is checked, only the features in the input and overlay layer that are visible within the current map extent will be overlaid. If unchecked, all features in both the input layer and the overlay layer will be overlaid, even if they are outside the current map extent.
The point, line, or area layer that will be overlaid.
In addition to choosing a layer from your map, you can select Choose Analysis Layer found at the bottom of the drop-down list. This option opens a gallery where you can browse to and select datasets from various sources to use in your analysis.
The layer to overlay on the input layer.
In addition to choosing a layer from your map, you can select Choose Analysis Layer found at the bottom of the drop-down list. This option opens a gallery where you can browse to and select datasets from various sources to use in your analysis.
Specifies the overlay method that will be used to define how the input layer and the overlay layer will be combined.
Points with Points |
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Points with Lines |
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Points with Areas |
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Lines with Lines |
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Lines with Areas |
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Areas with Areas |
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If Use current map extent is checked, only the features in the input and overlay layer that are visible within the current map extent will be overlaid. If unchecked, all features in both the input layer and the overlay layer will be overlaid, even if they are outside the current map extent.
The name of the layer that will be created in My Content and added to the map. It will have the same feature type (areas, lines, or points) as the overlay layer. The default name is based on the overlay method and the input layer name. If it's an existing layer, you are prompted to provide another name.
Using the Save result in drop-down box, you can specify the name of a folder in My Content where the result will be saved.