diff --git a/bin/feedgnuplot b/bin/feedgnuplot index 90f0d98..0876759 100755 --- a/bin/feedgnuplot +++ b/bin/feedgnuplot @@ -1420,56 +1420,112 @@ 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 |-+ ** #### | - | **#### | - | #### | + | + + + + + + + ##*| + | ##* | + | ## * | + 9 |-+ ## ** | + | ## * | + | ## * | + | ## ** +-| 20 + 8 |-+ B * | + | ## * | + | ## ** | + | ## * | + | ## A | + 7 |-+ ## ** | + | ## ** +-| 15 + | ## * | + | ## ** | + 6 |-+ #B ** | + | ## ** | + | ## * | + | ## ** +-| 10 + 5 |-+ ## ** | + | ## *A | + | ## ** | + | ## ** | + 4 |-+ B *** | + | ## ** | + | ## ** +-| 5 + | ## ** | + | ## **A* | + 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. - 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 + + wlan0 throughput + 300000 +---------------------------------------------------------------+ + | + + + + + | + | | + | | + | * | + 250000 |-+ * +-| + | ** | + | * * | + | * * | + | * * | + | * * | + 200000 |-+ * * +-| + | * * | + | * * | + | * * | + | * * | + 150000 |-+ * *+-| + | * * | + | * * | + | * * | + | * * | + | * * | + 100000 |-+ * *-| + | * * | + | * *| + | ** * *| + | *** * * *| + 50000 |-+ *** * **** * +*| + | ** ** ***** ** * | + | ** * *** ** * | + | ***** * ***** ** | + |** *** | + | + + + + + | + 0 +---------------------------------------------------------------+ + 6 8 10 12 14 + seconds =head1 DESCRIPTION