source: branches/stable/HELP_SOURCE/oldhelp/field_shader.hlp

Last change on this file was 15054, checked in by westram, 8 years ago
File size: 2.1 KB
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1#Please insert up references in the next lines (line starts with keyword UP)
2UP      arb.hlp
3UP      glossary.hlp
4
5#Please insert subtopic references  (line starts with keyword SUB)
6SUB     tree_shading.hlp
7SUB     aci.hlp
8
9# Hypertext links in helptext can be added like this: LINK{ref.hlp|http://add|bla@domain}
10
11#************* Title of helpfile !! and start of real helpfile ********
12TITLE           Database field shader
13
14OCCURRENCE      ARB_NT/Tree/Tree shading/...
15
16                Select 'Database field shader' and press 'Configure'.
17
18DESCRIPTION     This field shader allows to shade items (eg. species in tree) according
19                to one or more database entries.
20
21                Each row in this window configures one dimension.
22                Each dimension defines one color-channel.
23
24                The toggle at the beginning of each row switches the dimension on/off.
25
26                The button behind selects the database field which shall be visualized as color.
27                The database fields normally has to contain a numeric value.
28
29                The next input field allows to specify an ACI command. It will be applied to the
30                content of the database field and the result will be interpreted as numeric value.
31
32                The two inputfields behind the field-selection specify the lower and upper border
33                of the value-range.
34
35                   Press the 'SCAN' button to scan all database entries (+apply ACI)
36                   for minimum and maximum occurring values and use them as value-range.
37
38                   The value range is mapped to the active color range which can be selected
39                   in the shader setup window.
40
41                   Values outside the value-range are forced into the range, eg. if the specified
42                   value-range is [10 .. 20], then a value of 5 is displayed like 10 and a value
43                   of 25 is displayed like 20.
44
45NOTES           If you exchange the borders of the value range (eg. [20 .. 10]) it will be
46                mapped reverse.
47
48EXAMPLES        None
49
50WARNINGS        None
51
52BUGS            No bugs known
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