3.9.1. Rules for drawing vegetation items

When drawing vegetation items, you must adhere to the following rules.

Vegetation items:

3.9.1.1

Drawn in accordance with 2.7.1. General rules for drawing polygonal items.

3.9.1.2

Draw them regardless of their size (to the extent that the satellite image allows).

The external polygon of vegetation items is drawn based on the actual vegetation boundaries.

3.9.1.3

You can draw individual trees located at some distance from the greater woodlands area or other trees if they are visible on the satellite image.

Don't draw individual trees within the vegetation polygon (such as a woodland area or garden).

If a tree is a local attraction with cultural or historical significance, draw it as a placemark of the Locations category and the Culture and attractions — Attraction type (see section 3.6.2.1.1. Item type).

3.9.1.4

Draw vegetation items of the Park, square, Block vegetation, Nature reserve and Cemetery types along the borders of their territories (fences, cemetery perimeter in the absence of a fence, administrative borders of protected areas) or vegetation borders (for example, where the vegetation meets a road). Internal polygons for these types of items are drawn only when a part of their territory constitutes a different item with a different purpose.

You don't need to pay special attention to rounding corners when drawing vegetation items.

Rounded:

Not rounded:

3.9.1.5

Outside of continually developed areas, you may draw railways and single-lane roads as intersecting vegetation.

Vegetation may intersect with motorways that run through territories that are regularly developed if those motorways have one of the following classes:

• 10 (Pedestrian and bike paths),

• 9 (Field and forest roads),

• 8 (Driveways).

• 7 (Roads of minimal significance) accessible only to pedestrians and/or bicyclists.

Both outside of within continually developed areas, vegetation of the Park, square, Nature reserve and Cemetery types may intersect single-lane roads of any type if these roads are exit ramps to these areas of vegetation or passages through said areas.

For example:

Roads and vegetation items located at different levels can intersect.

Also see point 3.3.1.1.8.

3.9.1.6

Lawns should be enclosed (by edging, curbs, fences, etc.). Draw the item outline based on the physical border of the section containing vegetation. For example:

Correct	Incorrect

Draw sections with permanent grass cover. Avoid drawing sections that don't have grass cover.

Fields, meadows, and empty lots are not classified under this type: don't draw these items on YME.

For residential areas with single-family homes, lawns don't include grass vegetation that grows inside private neighborhoods and on private property:

The green arrows indicate vegetation that can be drawn as Lawn items, while the red arrows point to vegetation that doesn't meet the criteria.

3.9.1.7

For Urban vegetation items, polygons should include trees and shrubs, as well as grass vegetation that meets the criteria for drawing lawns.

In those cases, you can also map vegetation in detail: draw the grass cover as a Lawn item and shrubs and trees as Urban vegetation items:

Note

When you're using this method, draw shrubs and trees in parks using the Woodlands type instead of Urban vegetation.

Do not simplify urban vegetation polygons.

3.9.1.8

Roads drawn using two lines can not cut through a vegetation item: draw these items along both sides of such roads (i.e. the road divides the vegetation).

Borders of woodlands that are located along such roads should be drawn based on the actual vegetation borders (not based on the tree canopies) and should not intersect with the road.

3.9.1.9

For information on fields, meadows, and other vegetation items that do not relate to the item types used on YME (i.e. Woodlands, Park, Square, Nature reserve, Lawn, Garden, Cemetery), see section 3.9.2. Rules for adding attributes to vegetation items). For example, you should only draw steppe or tundra (mountain, arctic, etc. tundra) vegetation in cases where it belongs to the Nature reserve type (i.e. the vegetation is in a specially protected area). Otherwise, don't draw such vegetation.

3.9.1.10

Vegetation items that partly relate to the types of items used on YME (such as combined forest-tundra greenery) should be drawn in the area that relates to one of the categorized types. To take the previous example, you should draw the woodlands part of a forest-tundra vegetation area (including sparsely forested areas).

3.9.1.11

When drawing internal polygons, follow 2.7.2. Rules for using internal polygons.

3.9.1.12

When drawing the sections of polygonal hydrographic items that border vegetation items, follow these rules:

3.9.1.12.1

If the item's polygon is completely contained by the polygon of a different category of item (such as if a lake or pond is located within a forest), then only draw the polygon for the item located within the other item (in this case, the lake or pond) along their border. Don't draw internal polygons for map items containing other items (for example, for a forest with a lake in it). Take this same approach when drawing river polygons that intersect woodlands or other items:

3.9.1.12.2

If the item polygon partially overlaps with the polygon of an item from a different category (for example, if woodlands encroach on part of the course of a river), then draw the borders of both items and try to make sure that there are no gaps between the borders.

Border of body of water	Woodlands border

On the resulting map, the map item borders will be merged:

Note

For information on drawing overlapping border sections of composite polygons, see 2.7.4.1. Composite polygonal items: drawing techniques.

3.9.1.13

The polygons of different vegetation items shouldn't intersect. However, they can have shared borders.

Woodlands and lawn type vegetation items can exist inside park, square, nature reserve, and cemetery item polygons (those items are defined based on their use, similarly to Territory items).

Note

You can draw a park, square type item inside a larger park, square type item provided it doesn't violate other vegetation item drawing rules.

If a lawn item is drawn inside a park, square, nature reserve, or cemetery item polygon, you can draw a woodland vegetation item inside it.

If a lawn item is drawn outside a park, square, nature reserve, or cemetery item polygon, you can draw an urban vegetation item inside it.

Note

For a detailed display of an item from the Park, square category, draw its vegetation in detail (when mapping lawns, include shrubs and trees).

3.9.1.14

It's preferable that vegetation items don't overlap with buildings.

If a vegetation item fully surrounds a building, then adding an inner polygon of vegetation for this building is considered a more accurate drawing. However, the vegetation may also overlap the building.

3.9.1.15

You should not add new external polygons to un-named vegetation items: drawing such polygons usually leads to mapping errors.

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