Labelling Rules

The maps you view in Konect are rendered on the screen as multiple small map tiles (a tile is 256x256 pixels) that adjoin one another but are also independent of each other. Labels will not cross tile boundaries - this means a Konect label must be entirely within a tile to display.

Konect labels will not overlap each other. This means that where a label from one feature overlaps a label from another feature, the overlapping label is not drawn.

A feature that covers more than one tile (long lines and large polygons) may be labelled in multiple tiles. The number of labels displayed will also vary depending on the viewing scale of the map eg at zoom level 16 you may get one label on a line but at level 21 you may get three labels

Specific Konect label settings for each feature type are as follows:

• Point features – Konect will draw a label to either the left or the right of a point horizontally centred and offset by the height of the symbol.

• Line features – Konect will draw labels on top of lines and must fit entirely on the length of the line section within the tile. This means small lines may never be labelled. Labels will follow curved lines as long as the angle between line segments is less than 15 degrees.

• Region features – Konect will draw a label at the region centroid and it will only display when it fits entirely within the region. An oddly shaped region may have a centroid that falls close to an edge and so the label may not fit within the region and the region may never be labelled. Regions that contain holes will often have a centroid that lies close an edge and may never be labelled.

• Multi-features – Konect may draw a label for the first feature in a multi-feature collection.