[GRASS-SVN] r57751 - grass/trunk/gui/images/barscales

[svn_grass at osgeo.org]

Author: annakrat
Date: 2013-09-19 05:53:28 -0700 (Thu, 19 Sep 2013)
New Revision: 57751

Added:
   grass/trunk/gui/images/barscales/README
Log:
add README to barscale images (needs to be completed)

Added: grass/trunk/gui/images/barscales/README
===================================================================
--- grass/trunk/gui/images/barscales/README	                        (rev 0)
+++ grass/trunk/gui/images/barscales/README	2013-09-19 12:53:28 UTC (rev 57751)
@@ -0,0 +1,21 @@
+How to generate new scale bar thumbnail
+=======================================
+Expects North Carolina dataset. The thumbnail height should be 24 px.
+
+
+export GRASS_RENDER_IMMEDIATE=png
+export GRASS_TRUECOLOR=TRUE
+export GRASS_WIDTH=300
+export GRASS_HEIGHT=300
+g.region rast=elevation
+
+for STYLE in classic line solid hollow full_checker part_checker mixed_checker tail_checker up_ticks down_ticks both_ticks arrow_ends
+do
+	echo ${STYLE}
+	export GRASS_PNGFILE=${STYLE}.png
+	d.barscale style=${STYLE} at=20,20
+	mogrify -trim ${STYLE}.png
+	identify -format "%[fx:w]x%[fx:h]" ${STYLE}.png
+	convert ${STYLE}.png -gravity center -background white -extent 170x24  ${STYLE}.png
+	optipng -o5 ${STYLE}.png ${STYLE}.png --quiet
+done


Property changes on: grass/trunk/gui/images/barscales/README
___________________________________________________________________
Added: svn:mime-type
   + text/plain
Added: svn:keywords
   + Author Date Id
Added: svn:eol-style
   + native