# Network

A Network

renders a network visualization based on graph input. A network accepts two input tables: one for the nodes, and the other for the edges. The two tables must share columns with node identifiers. The network uses Edge Source Column and Edge Target Column as node identifiers to relate edges to the nodes.

As the network node receives two tables, there are correspondingly four output ports. From the top to the bottom on the right of the network, the first two ports are the Selection Port and Output Port of the nodes, and the second ports are the Selection Port and Output Port of the edges.

# Example

A network showing color encode nodes. This is a gene regulatory network in which blue nodes are genes that are of a special category called the Transcription Factors. The node table is of the format:

name	isTF
BATF	yes
RORC	yes
...	...
ABCB9	no
ABCD3	no
...	...

The edge table is of the format:

source	target	confidence_score
BATF	RORC	1.954587
BATF	ABCB9	1.612152
...	...	...

The Node Id Column is name from the node table. The Edge Source Column is source from the edge table. The Edge Target Column is target from the edge table.

# Selection

Drags and draws a rectangular box to select the nodes and edges inside or partially inside the box when the network is not in the Navigation mode.

# Visual Properties

# Nodes

Type	Effect
color	Fill color of the circle
border	Border color of the circle
size	Diameter of the circle
width	Width of the circle border
opacity	Opacity of the circle

# Edges

Type	Effect
color	Color of the edge curve and arrow
border	Not supported
size	Not supported
width	Stroke width of the edge curve and arrow
opacity	Opacity of the edge curve and arrow

# Options

# Node ID Column

Configures the column to use as the node identifier from the node table.

# Edge Source Column

Configures the column to use as the source node identifier from the edge table.

# Edge Target Column

Configures the column to use as the target node identifier from the edge table.

# Node Label Column

Configures the column to use as the node label from the node table.

# Edge Distance

Speificies the desired distance between two nodes that are directly connected by an edge.

# Navigation

When navigation is on, dragging in the network area performs zooming and panning. When navigation is off, dragging in the network area makes a rectangular selection.