Using the density graph

The density graph displays a graphical representation of the connection density of your board. Using colors ranging from blue and green (acceptable density) to pink and red (very dense), the density graph represents the degree of difficulty that will be faced in routing the board.

The density graph analyzes all routing layers, routed tracks, widths of tracks, spacing rules, DRC settings, and connections to calculate the available routing channels. It shows the crossing count at each location of the board in relation to how much of each cell is being filled by a pad, track, or connection.

There are two kinds of data shown on the density graph:

1) the board density at each location (the number of pads and connections in a given area of the board)

2) the track density (the track density in each channel), shown as bar graphs at the top and right.

Viewing placement statistics

When you finish placing components on the board, you can view the component placement statistics in the Statistics spreadsheet. The spreadsheet shows the percentage and number of components placed, how many were placed off the board, how many were unplaced, and how many were placed in clusters.

To view placement statistics

1 Choose the spreadsheet toolbar button, then choose Statistics. The Statistics spreadsheet appears.

2 Scroll until you find the % Placed row, which is the beginning of the placement data.

3 Close the spreadsheet when you are finished viewing the statistics.