[英]php rrd_graphs comments position change almost every time
我对rrd grap有问题-每次看起来都不同。
例如:这些是使用相同功能一张一张地生成的2张图。
我的rrd_graph选项如下所示:
"--slope-mode",
"--start", $start,
"--font=DEFAULT:9:Cantarell",
"--font=TITLE:12:Roboto Condensed",
"--font=AXIS:8:Roboto Condensed",
"--font=LEGEND:9:Cantarell",
"--font=WATERMARK:6:Cantarell",
"--title=$title",
"-W General",
"--vertical-label=Tx[dBm] / Rx[dBm] / SNR[dB]",
"--lower=0",
"-w 550",
"-h 300",
"-P",
"--border=0",
"--color=BACK#ffffff",
"DEF:Tx=$RRD_CM_PATH$cm_mac_mod.rrd:US_Tx:AVERAGE",
"DEF:SNR=$RRD_CM_PATH$cm_mac_mod.rrd:US_SNR:AVERAGE",
"DEF:Rx=$RRD_CM_PATH$cm_mac_mod.rrd:US_Rx:AVERAGE",
"COMMENT:\\n",
"COMMENT:\\t\\t\\t\\t\\t\\t\\t\\t Current\\t\\t Average\\t\\tMinimum\\t Maximum",
"COMMENT:\\n",
"COMMENT:\\t\\t\\t",
"LINE3:Tx#055499:US Tx\\t\\t\\t",
"GPRINT:Tx:LAST:%2.1lfdBm \\t",
"GPRINT:Tx:AVERAGE:%2.1lfdBm \\t",
"GPRINT:Tx:MAX:%2.1lfdBm \\t",
"GPRINT:Tx:MIN:%2.1lfdBm \\t",
"COMMENT:\\n",
"COMMENT:\\t\\t\\t",
"LINE3:SNR#ff5a00:US SNR\\t\\t",
"GPRINT:SNR:LAST:%2.1lfdBm\\t",
"GPRINT:SNR:AVERAGE:%2.1lfdBm\\t",
"GPRINT:SNR:MAX:%2.1lfdBm\\t",
"GPRINT:SNR:MIN:%2.1lfdBm\\t",
"COMMENT:\\n",
"COMMENT:\\t\\t\\t",
"LINE3:Rx#4be117:US_Rx\\t",
"GPRINT:Rx:LAST:%2.1lfdBm\\t",
"GPRINT:Rx:AVERAGE:%2.1lfdBm\\t",
"GPRINT:Rx:MAX:%2.1lfdBm\\t",
"GPRINT:Rx:MIN:%2.1lfdBm\\t",
"COMMENT:\\n",
我忘了分享解决方案...我用2件东西解决了一个问题:
带有固定宽度字符串的sprintf:
sprintf('COMMENT:%25s%13s%13s%14s%13s', "", "Current", " Average", "Maximum", "Minimum"), "COMMENT:\\\\n", "COMMENT: \\\\n", "COMMENT:\\\\t", sprintf("LINE3:Rx#055499:%-9s%-10s", "DS Rx", "[dBm]"), sprintf("GPRINT:Rx:LAST:%-13s", "%4.1lf"), sprintf("GPRINT:Rx:AVERAGE:%-13s", "%4.1lf"), sprintf("GPRINT:Rx:MAX:%-13s", "%4.1lf"), sprintf("GPRINT:Rx:MIN:%-13s", "%4.1lf"), "COMMENT:\\\\n", "COMMENT:\\\\t", sprintf("LINE3:SNR#ff5a00:%-9s%-10s", "DS SNR", "[dB]"), sprintf("GPRINT:SNR:LAST:%-13s", "%4.1lf"), sprintf("GPRINT:SNR:AVERAGE:%-13s", "%4.1lf"), sprintf("GPRINT:SNR:MAX:%-13s", "%4.1lf"), sprintf("GPRINT:SNR:MIN:%-13s", "%4.1lf"), "COMMENT:\\\\n", "COMMENT:\\\\t", sprintf("LINE3:MR#4be117:%-9s%-10s", "MicroRef", "[-dBc]"), sprintf("GPRINT:MR:LAST:%-13s", "%4.1lf"), sprintf("GPRINT:MR:AVERAGE:%-13s", "%4.1lf"), sprintf("GPRINT:MR:MAX:%-13s", "%4.1lf"), sprintf("GPRINT:MR:MIN:%-13s", "%4.1lf"), "COMMENT:\\\\n",
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