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![1](images/drex_module_7_1_image_1.png) Node
A Node is a visual representation of an entity.
One can control the appearance of a node using settings such as
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![2](images/drex_module_7_1_image_3.png) Edge
An Edge is a visual representation of a relation. It is a line that connects two nodes.
One can control the appearance of a node using settings such as
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![3](images/drex_module_7_1_image_5.png) Node Tag: Icon
A Node Tag icon is an image that appears in the upper right hand corner of a node.
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![4](images/drex_module_7_1_image_7.png) Node Tag: Text
A Node Tag can also be a bit or text or a number that appears in the upper right hand corner of a node.
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![5](images/drex_module_7_1_image_9.png) Node Halo
A node halo is a translucent shape that appears behind the node.
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![6](images/drex_module_7_1_image_11.png) Edge Tag: Text
An Edge Tag is a bit of text that appears in the middle of an edge.
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![7](images/drex_module_7_1_image_13.png) Edge Arrow
An edge arrow shows the direction of the edge.
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![8](images/drex_module_7_1_image_15.png) Node Selection
Selected nodes have a multi-color outline to make them stand out from the background.
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