Midland Valley FieldMove Clino, Руководство пользователя

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Map
18
In low resolution files the higher you zoom in, the more
distortion will be seen in the image.
Note: MBTiles files are locked at a minimum and
maximum zoom level. Each zoom level increases the
magnification by a factor of two, and as a result the size
of the MBTiles file approximately increases by a factor of
two as well. This means that low zoom level files take up
less space on the phone, but not as useful for mapping as
higher zoom levels. Be wary of the file size when
increasing the zoom level beyond 16, as the file size
grows exponentially.
Exporting MBTiles from Move2014
To export an MBTiles file from Move first make sure you
have an image present in a georeferenced .move file.
Select the image and click the right mouse button. Select
the
Export As option then Export MBTiles .
The Set MBTiles Properties dialogue box will appear.
Select the Minimum Zoom Level and Maximum Zoom
Level . An Estimated Output number of tiles and the size
of the file will be displayed. An MBTiles file will be
exported to the chosen location.
For topographical maps, a scale of 1m/pixel will produce a
very large file with a scale that will show paths, streams
etc. For satellite images, a scale that fits the resolution of
the satellite is suitable. For geological maps, finer
resolution than the map itself may be more suitable as
this will allow high levels of zoom. It is also worth making
all the small zoom levels available (typically a zoom of
above 1:2,000,000). This will ensure that the image can
be seen in relation to the global map, and will only take
up a small amount of the phone’s memory. It is worth
taking some time to experiment with the scale of the map
before going into the field.
Import MBTiles files into FieldMove Clino
Once images are saved in the MBTiles format, they can be
added to the FieldMove Clino
Documents folder via
iTunes.
In iTunes, to add the files to the documents folder, select
the
Add... button at the bottom of the right-hand column,
and navigate to where the maps are stored. This process
will need to be repeated if maps are stored in different
locations on your PC.
Zoom
Level Metres /
pixel
1 78272
2 39136
3 19568
4 9784
5 4892
6 2446
7 1223
8 611
9 306
10 153
11 76
12 38
13 19
14 9.6
15 4.8
16 2.4
17 1.19
18 0.6
19 0.3
20 0.15
Guide to zoom levels