Currently, river areas (`natural=water` + `water=river`) are rendered in the tiles as `class=river`. However, canal, stream, ditch, and drain water areas are rendered as `class=lake`. Since these types of objects are all flowing water, they should be grouped together into `class=river`, which allows for styles that render flowing water differently to do so on a consistent basis.
* At zooms 9-13, water labels will now be rendered for water features that are at least 0.25 tiles in size. This means that water features that are the same size as a 128x128 pixel square will get a point label.
* Labels for large water features are now shown at the lowest zoom at which it's appropriate to show a label.
* Bay and strait names (`natural=bay` and `natural=strait`) are included.
* Large seas modeled as areas (e.g. Caspian Sea) render as `class=sea` rather than `class=lake`
This PR proposes to add a new class, "pond" to the water layer, which allows for a style to de-emphasize minor bodies of water (tagged `water=pond,basin,wastewater`) when compared to more significant objects tagged reservoir/lake. This PR retains the default behavior of classifying a water body as a "lake" if more specific tagging is not added.
Add salt pond as water.
Most of salt pond are already tagged with natural=water even if it's not required. So the load added by this tag is very light.
quicker and cleaner diagram image generation.
Remove etl-graph and mapping-graph targets - redundant
Also, the obsolete "fields" is still in Imposm's code and both names are accepted,
but "fields" is not documented anywhere (PR submitted), and could be removed at any moment.
Our docs were not supporting it until this PR, so renaming it at the same time.
Several images have been updated due to a more inclusive mapping scan
Requires https://github.com/openmaptiles/openmaptiles-tools/pull/147 (merged)
Seems like etl and mapping diagrams have been neglected
for a long time. Now it regenerates the files and places
them in the source dir.
This PR also fixes two broken files:
* layers/aerodrome_label/mapping_diagram.png
* layers/housenumber/mapping_diagram.png
They were generated using the newest tools version with the fix
https://github.com/openmaptiles/openmaptiles-tools/pull/65
