See Also...401 414 ISOM Index Vegetation index previous next
revision
05/00
415 Cultivated land
Cultivated land which is seasonally out-of-bounds due to growing crops may be shown with a black dot screen.
Colour: yellow 100%, black 5%.
Dot diameter 0.2mm, horizontal spacing 0.8mm (12.5 lines/cm).
This symbol is oriented to north.
As ISOM 2000 but drawing dimensions were: -
Dot diameter 0.25mm, horizontal spacing 0.9mm.
Defined as area symbol 415.0; this can be drawn with any drawing tool.
Take advantage of editing straight lines into bézier lines where appropriate. Also edge match with care using the control key when drawing to match edges.
This is a rotatable symbol, the pattern of the fill can be rotated with the direction tool and will rotate with the map if the “include symbols” box is checked when the map is turned. This is not the same as using the rotation tool which turns the whole object, but not the fill pattern.
See minimum dimensions but specifically -
- Smallest area enclosed by a dotted line: 1.5 mm (diameter) with 5 dots.
- Smallest area of colour yellow full colour: 0.5mm˛.
Forest corner: the corner or tip of a wood projecting into open ground.
The ISOM lays down the permissible combination of screens.
There is no mention of this symbol in the combination section of the specifications. The inference is that this screen should remain on its own, no combinations allowed.
Dotted areas
There is a problem with the joining of these areas.
Where a large area is made out of two or more overlapping areas,
one area knocks out the underlying edge.
This appears a clean join on the screen but the filled area
covers the dots at the join on the output.
(Nick Nourse)
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