Re: [las_users] Regarding Ferret, Categories Dataset and OpenLayer Map

[Martin Schmidt <martin.schmidt@xxxxxxxxxxxxxxxxx>]

Good morning,
I am working on the design of a LAS using version 7.2. I would like to 
ask some questions concerning
the behaviour of the "plot options". I am trying to set the defaults of 
plot levels, palettes and so on in the
xml-files.

Following the manual there should be a hierarchie of "properties", but I 
cannot get this working.
The LAS is
phy-51.io-warnemuende.de

Here a piece of the xml-file:

<datasets>
<Iowtopo1 name="IOW Belt Sea Topography 1 n.m."
            url="/u/las/las-daten/IOW-topgraphie/iowtopo1_rev02.nc"
        doc="http://www.io-warnemuende.de/research/de_iowtopo.html";>
<properties>
<ferret>
<palette>no_red</palette>
<land_type>none</land_type>
<do_contour>0</do_contour>
<fill_type>shade</fill_type>
</ferret>
</properties>
<variables>
<LANDMASK-Iowtopo1 name="prescribed landmask" units="no units" 
url="#LANDMASK">
<link match="/lasdata/grids/grid-XT_I-YT_J-Iowtopo1" />
<properties>
<ferret>
<land_type>none</land_type>
<palette>inverse_greyscale</palette>
<fill_levels>(-1,1,1)</fill_levels>
</ferret>
</properties>
</LANDMASK-Iowtopo1>
...
<Z_NEAR-Iowtopo1 name="nearest data point height/depth" units="m" 
url="#Z_NEAR">
<link match="/lasdata/grids/grid-XT_I-YT_J-Iowtopo1" />
<properties>
<ferret>
<land_type>none</land_type>
<palette>land_sea</palette>
<fill_levels>(-100)(-50,50,5)(100)</fill_levels>
</ferret>
</properties>
</Z_NEAR-Iowtopo1>

The problems are for example:
- there is allways a land contour in the plots until explicitely 
switched off via the "set plot options" menue. land_type is ignored.
- the palette of   LANDMASK should be inverse_greyscale but no_red is 
used. Changing this in "plot options", also
  the palettes of other variables are changed, for example sea "nearest 
data point height". Also setting "default" in
  "set plot options" does not have any effect. Also RESET does nothing

There are other examples of the same kind.

Is this a know issue and are there any methhods to fix it?

Greetings,
Martin