User guide

© GeoWise Ltd. 2011
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Figure 32
Fill opacity defines whether the centre of a layer has opaqueness or not,
where 0 means complete transparent and 1 means complete opaqueness.
By default, contextual layers are set to 0. For point layers in particular, you
may want a value higher than 0 in order to see filled points instead of
circles or ‘hoops’.
If your contextual layer is a point layer you might also wish to upload an
icon file which will be displayed in the map for each of the points. This icon
replaces the default circle symbol (Figure 33).
Figure 33
Valid icon formats are JPG and PNG. If you would like to have a
transparent background, you need to create a PNG file since the JPG
format does not support transparency.
Some of the most common symbols in the different colours can be found in
the installation folder of your InstantAtlas software, in a subfolder called
‘icons’. The default location for this is:
C:\Program Files\GeoWise\InstantAtlas\icons\.
For line or polygon contextual layers the Icon File property should be left
blank.