diff --git a/README.pod b/README.pod
index 951a099..f5c45f4 100644
--- a/README.pod
+++ b/README.pod
@@ -21,56 +21,40 @@ Simple plotting of piped data:
10 25
$ seq 5 | awk '{print 2*$1, $1*$1}' |
- feedgnuplot --lines --points --legend 0 "data 0" --title "Test plot" --y2 1
- --unset grid --terminal 'dumb 80,40' --exit
+ feedgnuplot \
+ --lines \
+ --points \
+ --title "Test plot" \
+ --y2 1 \
+ --unset key \
+ --unset grid \
+ --terminal 'dumb 80,40' \
+ --exit
- Test plot
-
- 10 +-----------------------------------------------------------------+ 25
- | + + + + + + + *##|
- | data 0 ***A*#* |
- | ** # |
- 9 |-+ ** ## |
- | ** # |
- | ** # |
- | ** ## +-| 20
- 8 |-+ A # |
- | ** # |
- | ** ## |
- | ** # |
- | ** B |
- 7 |-+ ** ## |
- | ** ## +-| 15
- | ** # |
- | ** ## |
- 6 |-+ *A ## |
- | ** ## |
- | ** # |
- | ** ## +-| 10
- 5 |-+ ** ## |
- | ** #B |
- | ** ## |
- | ** ## |
- 4 |-+ A ### |
- | ** ## |
- | ** ## +-| 5
- | ** ## |
- | ** ##B# |
- 3 |-+ ** #### |
- | **#### |
- | #### |
- |## + + + + + + + |
- 2 +-----------------------------------------------------------------+ 0
- 1 1.5 2 2.5 3 3.5 4 4.5 5
-
-Here we asked for ASCII plotting, which is useful for documentation.
+=for html
+
+Gnuplot
+Produced by GNUPLOT 6.1 patchlevel 0
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 0
+
+
+
+
+ 50000
+
+
+
+
+ 100000
+
+
+
+
+ 150000
+
+
+
+
+ 200000
+
+
+
+
+ 250000
+
+
+
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+ 300000
+
+
+
+
+ 6
+
+
+
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+ 8
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+
+
+
+ 10
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+
+
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+ 12
+
+
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+ 14
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+
+
+
+
+
+
+
+ gnuplot_plot_1
+
+
+
+
+
+
+
+
+
+
+ Bytes/sec
+
+
+
+
+ seconds
+
+
+
+
+
+
+ wlan0 throughput
+
+
+
+
+
+
+
diff --git a/documentation-header-plot.svg b/documentation-header-plot.svg
new file mode 100644
index 0000000..169795a
--- /dev/null
+++ b/documentation-header-plot.svg
@@ -0,0 +1,204 @@
+
+
+
+Gnuplot
+Produced by GNUPLOT 6.1 patchlevel 0
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 2
+
+
+
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+ 3
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+ 4
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+ 5
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+ 6
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+ 7
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+ 8
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+ 9
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+ 10
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+ 1
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+ 1.5
+
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+
+
+ 2
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+
+
+
+ 2.5
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+ 3
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+ 3.5
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+
+
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+ 4
+
+
+
+
+ 4.5
+
+
+
+
+ 5
+
+
+
+
+ 0
+
+
+
+
+ 5
+
+
+
+
+ 10
+
+
+
+
+ 15
+
+
+
+
+ 20
+
+
+
+
+ 25
+
+
+
+
+
+
+
+
+ gnuplot_plot_1
+
+
+ gnuplot_plot_2
+
+
+
+
+
+
+
+
+
+
+
+
+ Test plot
+
+
+
+
+
+
+
diff --git a/extract_README.sh b/extract_README.sh
index 2d9b2cf..641b8df 100755
--- a/extract_README.sh
+++ b/extract_README.sh
@@ -10,5 +10,28 @@ L<"slides"|https://github.com/dkogan/talk-feedgnuplot-vnlog/blob/master/feedgnup
EOF
+seq 5 | awk '{print 2*$1, $1*$1}' |
+ feedgnuplot \
+ --lines \
+ --points \
+ --title "Test plot" \
+ --y2 1 \
+ --unset key \
+ --unset grid \
+ --hardcopy 'documentation-header-plot.svg'
+
+
+< bin/feedgnuplot \
+ awk '/^ *Test plot$/,/^ *1 +1.5 +2 +2.5/ \
+ { if(!wrote_plot1) { print "=for html
Simple real-time plotting example: plot how much data is received on the wlan0
-network interface in bytes/second (uses bash, awk and Linux):
+network interface in bytes/second. This plot updates at 1Hz, and shows the last
+10sec of history. The plot shown here is the final state of a sample run
- $ while true; do sleep 1; cat /proc/net/dev; done |
- gawk '/wlan0/ {if(b) {print $2-b; fflush()} b=$2}' |
- feedgnuplot --lines --stream --xlen 10 --ylabel 'Bytes/sec' --xlabel seconds
+ $ while true; do
+ sleep 1;
+ cat /proc/net/dev;
+ done \
+ | gawk '/wlan0/ {if(b) {print $2-b; N++; fflush()} b=$2} N==15 {exit}' \
+ | feedgnuplot \
+ --lines \
+ --title "wlan0 throughput" \
+ --stream \
+ --xlen 10 \
+ --ylabel 'Bytes/sec' \
+ --xlabel seconds \
+ --unset key \
+ --unset grid \
+ --terminal 'dumb 80,40' \
+ --exit
+
+=for html 
=head1 DESCRIPTION
diff --git a/documentation-header-network-throughput-plot.svg b/documentation-header-network-throughput-plot.svg
new file mode 100644
index 0000000..e9f5bde
--- /dev/null
+++ b/documentation-header-network-throughput-plot.svg
@@ -0,0 +1,141 @@
+
+
+
diff --git a/documentation-header-plot.svg b/documentation-header-plot.svg
new file mode 100644
index 0000000..169795a
--- /dev/null
+++ b/documentation-header-plot.svg
@@ -0,0 +1,204 @@
+
+
+
diff --git a/extract_README.sh b/extract_README.sh
index 2d9b2cf..641b8df 100755
--- a/extract_README.sh
+++ b/extract_README.sh
@@ -10,5 +10,28 @@ L<"slides"|https://github.com/dkogan/talk-feedgnuplot-vnlog/blob/master/feedgnup
EOF
+seq 5 | awk '{print 2*$1, $1*$1}' |
+ feedgnuplot \
+ --lines \
+ --points \
+ --title "Test plot" \
+ --y2 1 \
+ --unset key \
+ --unset grid \
+ --hardcopy 'documentation-header-plot.svg'
+
+
+< bin/feedgnuplot \
+ awk '/^ *Test plot$/,/^ *1 +1.5 +2 +2.5/ \
+ { if(!wrote_plot1) { print "=for html ![](\"documentation-header-plot.svg\")
"; \
+ wrote_plot1 = 1; } \
+ next; \
+ } \
+ /^ *wlan0 throughput$/,/seconds/ \
+ { if(!wrote_plot2) { print "=for html ![](\"documentation-header-network-throughput-plot.svg\")
"; \
+ wrote_plot2 = 1; } \
+ next; \
+ } \
+ /=head1/,0 \
+ { print }' >> README.pod
-< bin/feedgnuplot awk '/=head1/,0' >> README.pod