use as CGI script and get png image

diff --git a/temp.sh b/temp.sh
index dc82bd8..837f3e5 100755 (executable)
--- a/temp.sh
+++ b/temp.sh
@@ -1,14 +1,16 @@
 #!/bin/sh -x
 
-kindle=192.168.3.100
+# install as cgi-script and invoke to get png
+
+echo Location: http://192.168.3.2/m1.gray.png
+echo
 
 #ssh rpi 'cat `ls -t /dev/shm/vaillant.* | head -1` | sed "s/  .*| */ /"' > /dev/shm/temp.tsv
 tail -8640 `ls -t /dev/shm/vaillant.* | head -1` | sed "s/  .*| */ /" > /dev/shm/temp.tsv
+cd /home/pi/vaillant-thermostat/
 gnuplot temp.gnuplot
 montage /dev/shm/[1-3].png -tile 1x3 -geometry +0+0 /tmp/m1.png
-convert /tmp/m1.png -gravity center -extent 600x800 /tmp/m1.pgm
+#convert /tmp/m1.png -gravity center -extent 600x800 /tmp/m1.pgm
+convert /tmp/m1.png -gravity center -extent 600x800 -colorspace Gray /tmp/m1.gray.png
 #display /tmp/m1.pgm
 
-if ping $kindle ; then
-       ./pgm2fb.pl /tmp/m1.pgm | ssh root@$kindle 'dd of=/dev/fb0 ; echo 2 > /proc/eink_fb/update_display'
-fi