#2326: describe behavior of having no non-datavalue as by design. Also change all...

git-svn-id: http://svn.osgeo.org/postgis/trunk@11459 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/doc/reference_raster.xml b/doc/reference_raster.xml
index 51771f5fbbd906447d8d681e310e659116b777b3..77ed212f9c8fc7bc009b6f3a805bdfcc8cc039bb 100644 (file)
--- a/doc/reference_raster.xml
+++ b/doc/reference_raster.xml
@@ -10777,7 +10777,7 @@ UPDATE wind
                <refentry id="RT_ST_ColorMap">
                        <refnamediv>
                                <refname>ST_ColorMap</refname>
-                               <refpurpose>Creates a new raster of up to four 8BUI bands (grayscale, RGB, RGBA) from the source raster and specified band.</refpurpose>
+                               <refpurpose>Creates a new raster of up to four 8BUI bands (grayscale, RGB, RGBA) from the source raster and a specified band. Band 1 is assumed if not specified.</refpurpose>
                        </refnamediv>
                
                        <refsynopsisdiv>
@@ -10807,6 +10807,7 @@ UPDATE wind
                                <para>
                                        Apply a <varname>colormap</varname> to the band at <varname>nband</varname> of <varname>rast</varname> resulting a new raster comprised of up to four 8BUI bands. The number of 8BUI bands in the new raster is determined by the number of color components defined in <varname>colormap</varname>.
                                </para>
+                               <para>If <varname>nband</varname> is not specified, then band 1 is assumed.</para>
 
                                <para>
                                        <varname>colormap</varname> can be a keyword of a pre-defined colormap or a set of lines defining the value and the color components.