The roads in the network can be filtered according to their functional road class (FRC) and their form of way (FOW) values. Additionally all nodes can be drawn on top of the road network.
The filter functionality is active as long as the related toggle button in the toolbar is activated. Toggling it again or closing the filter dialog removes the filter from the map graphics.
After a click on the "Filtering" button a new dialog will open and present the filter options (see figure 5.1).
Figure 5.1: Filter options
Figure 5.1 shows the filter options dialog if no filtering is enabled. The map panel shows all lines in black and no nodes are drawn.
The filter options allows to draw the network nodes if the corresponding checkbox is selected. Figure 5.2 shows this option enabled. Figure 5.3 shows the map drawn with lines and nodes. The nodes are colored in blue by default. The color can be changed in the preferences. See section User interface for details.
Figure 5.2: Nodes enabled
Figure 5.3: Map with nodes drawn on top of the road network
The network links can be filtered according to their form of way (FOW) property. If this filter option is enabled (see figure 5.4) the links will be drawn in different colors according to their FOW value (see figure 5.5). The map panel draws all links of the selected types. Pressing the colored button in front of the label of an FOW type enables the user to change the color of the related links.
Figure 5.4: Filtering according to the FOW values
Figure 5.5: Filtered and colored FOW types
The networks links can be filtered according to their functional road class (FRC) property. If this filter option is enabled the links will be drawn in different colors according to their FRC value. Figure 5.7 shows the exemplary map of Utrecht drawn with the selection as shown in Figure 5.6. Pressing the colored button in front of the label of an FRC type enables the user to change the color of the related links.
Figure 5.6: Filtering according to the FRC values
Figure 5.7: Filtered and colored FRC types FRC0, FRC1 and FRC2 only
