User:SK53/Rendering Trees

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Summary of various ideas & attempts to deepen rendering of trees, woods and forests at a whole range of scales.

Woods & Forests

Basic idea (a least for non Tropical & Sub-tropical parts of Northern Hemisphere, the Holartic) is to work with a three fold hierarchy:

A host of other information may be desired:

  • Is the wood ancient (primary woodland, per-1600 in UK, Urwaelder in DE,AT,CH).
  • Is the wood self-sustaining or originally planted
  • Is the wood a plantation, i.e., trees are planted in rows for ease of harvesting. This is common in UK for commercial forestry (usually non-native conifers) and frequent across Europe with Poplars.
  • Conservation protection.
  • Management
  • Organisation: ownership & operator
  • Detailed info on Vegetation, using phytosociological information.
  • Usage (hunting, leisure, amenity, eco-services, protection from floods, avalanche, mud and other debris slides etc).

Basic Rendering ideas

Trees in Parkland

Wood Pasture

Individual Trees

Icon Creation

Basic Process

  • Collect good quality undamaged leaf
  • Ideally press it
  • Scan on flatbed scanner at quite high resolution (300 or 600 dpi according to leaf size)
  • Import into photo editor, rotate so petiole is pointing to top-left corner
  • Size canvas so leaf occupies about 80% of width/height of image
  • Shrink to 1024 pixels square
  • Generate an all black matt of the image using a suitable threshold value
  • Select the matt and use a border finding function, I use about 8 pixels.
  • Copy the selected border and safe as a PNG with transparent background
  • Import into Inkscape & run the Path on bitmap command, remove the imported bitmap & save at 1024px square as an SVG
  • Now change line colour and stroke width. Currently I'm using a mid-green and 24 px

PNG files of various sizes can be created from this. The base SVG can be tweaked easily to produce a suitable range of icons:

  • Leaf outline
  • Leaf filled
  • Leaf outline on background colour
  • Leaf filled on background colour
  • ...

Trees native and widely naturalised to Britain and Ireland

This is the starting point:

Forest Trees (i.e., ones which form dominant component of woodlands):

  • Scot's Pine Pinus sylvestris
  • Yew, Taxus baccata. leaf DONE
  • White Willow Salix alba
  • Crack Willow Salix (x) fragilis), leaf DONE
  • Aspen, Populus tremula, leaf DONE
  • Alder Alnus glutinosa, leaf DONE
  • Silver Birch Betula pendula, leaf DONE
  • Downy Birch Betula pubescens
  • Small-leaved Lime
  • Large-leaved Lime Tilia, leaf DONE
  • Pedunculate Oak Quercus rubor, leaf DONE
  • Sessile Oak Quercus petraea, leaf DONE
  • Beech, Fagus sylvatica, leaf DONE
  • Sycamore, leaf DONE
  • Ash, leaf DONE

Commercial Forest Trees (non-native)

  • Hemlock
  • Stika Spruce
  • Black (Corsican or Austrian Pine) Pinus nigra
  • Larch, Larix decidua leaf DONE
  • Dunkeld Larch, Larix x
  • Hybrid Poplar cvs., leaf DONE

Other Woodland trees

  • Grey Poplar
  • White Poplar
  • Goat Willow
  • Buckthorn
  • Wild Cherry
  • Bird Cherry
  • Whitebeam
  • Crab Apple
  • Wild Pear
  • Wild Service Tree
  • Sorbus microspecies
  • Rowan, leaf DONE
  • Field Maple
  • Hornbeam, leaf DONE

Scrub-forming trees

  • Juniper
  • Grey Willow
  • Purple Willow
  • Almond Willow, Salix triandra
  • Osier, Salix viminalis
  • Hazel, Corylus
  • Blackthorn
  • Hawthorn, leaf DONE
  • Sea Buckthorn

Common amenity Trees in Urban areas

  • Horse Chestnut, leaf DONE
  • Italian Alder, leaf DONE
  • London Plane
  • Cherry Plum, Prunus cerasifolia, leaf DONE
  • Common Pear, Pyrus communis
  • Turkey Oak
  • Holm Oak
  • Red Oak
  • Norway Maple, Acer platanoides,
  • Silver Maple
  • Walnut
  • Japanese Cherry cvs. ex Prunus serratula, leaf DONE
  • Gingko
  • False Acacia

Common Parkland Trees

  • Wellingtonia
  • Cedar of Lebanon
  • Deodar Cedar
  • Atlas Cedar
  • Lucombe Oak

Special Collection trees

  • Dawn Redwood
  • Woolemera Pine
  • Cork Oak
  • Handkerchief Tree