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diff --git a/doc/rrdgraph.txt b/doc/rrdgraph.txt
index 895dfc4321169a5acf9031d8ad2c33bb7c499177..def7c4c90e601a67ce45950bf98f880879e5c1b0 100644 (file)
--- a/doc/rrdgraph.txt
+++ b/doc/rrdgraph.txt
rrdgraph - Round Robin Database tool grapher functions
S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS
- r\brr\brd\bdt\bto\boo\bol\bl g\bgr\bra\bap\bph\bh _\bf_\bi_\bl_\be_\bn_\ba_\bm_\be [_\bo_\bp_\bt_\bi_\bo_\bn ...] [_\bd_\ba_\bt_\ba _\bd_\be_\bf_\bi_\bn_\bi_\bt_\bi_\bo_\bn ...] [_\bd_\ba_\bt_\ba _\bc_\ba_\bl_\b-
- _\bc_\bu_\bl_\ba_\bt_\bi_\bo_\bn ...] [_\bv_\ba_\br_\bi_\ba_\bb_\bl_\be _\bd_\be_\bf_\bi_\bn_\bi_\bt_\bi_\bo_\bn ...] [_\bg_\br_\ba_\bp_\bh _\be_\bl_\be_\bm_\be_\bn_\bt ...] [_\bp_\br_\bi_\bn_\bt
- _\be_\bl_\be_\bm_\be_\bn_\bt ...]
+ r\brr\brd\bdt\bto\boo\bol\bl g\bgr\bra\bap\bph\bh|\b|g\bgr\bra\bap\bph\bhv\bv _\bf_\bi_\bl_\be_\bn_\ba_\bm_\be [_\bo_\bp_\bt_\bi_\bo_\bn ...] [_\bd_\ba_\bt_\ba _\bd_\be_\bf_\bi_\bn_\bi_\bt_\bi_\bo_\bn ...]
+ [_\bd_\ba_\bt_\ba _\bc_\ba_\bl_\bc_\bu_\bl_\ba_\bt_\bi_\bo_\bn ...] [_\bv_\ba_\br_\bi_\ba_\bb_\bl_\be _\bd_\be_\bf_\bi_\bn_\bi_\bt_\bi_\bo_\bn ...] [_\bg_\br_\ba_\bp_\bh _\be_\bl_\be_\bm_\be_\bn_\bt ...]
+ [_\bp_\br_\bi_\bn_\bt _\be_\bl_\be_\bm_\be_\bn_\bt ...]
D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN
The g\bgr\bra\bap\bph\bh function of R\bRR\bRD\bDt\bto\boo\bol\bl is used to present the data from an R\bRR\bRD\bD
it. For instance, you might be collecting b\bby\byt\bte\bes\bs per second, but want to
display b\bbi\bit\bts\bs per second. This is what the d\bda\bat\bta\ba c\bca\bal\blc\bcu\bul\bla\bat\bti\bio\bon\bn command is
designed for. After c\bco\bon\bns\bso\bol\bli\bid\bda\bat\bti\bin\bng\bg the data, a copy is made and this
- copy is modified using a rather powerful rrdgraph_rpn command set.
+ copy is modified using a rather powerful R\bRP\bPN\bN command set.
When you are done fetching and processing the data, it is time to graph
it (or print it). This ends the r\brr\brd\bdt\bto\boo\bol\bl g\bgr\bra\bap\bph\bh sequence.
O\bOP\bPT\bTI\bIO\bON\bNS\bS
- filename
- The name and path of the graph to generate. It is recommended to
- end this in ".png", ".svg" or ".eps", but R\bRR\bRD\bDt\bto\boo\bol\bl does not enforce
- this.
-
- _\bf_\bi_\bl_\be_\bn_\ba_\bm_\be can be '"-"' to send the image to "stdout". In this case,
- no other output is generated.
-
- Time range
- [-\b-s\bs|-\b--\b-s\bst\bta\bar\brt\bt _\bt_\bi_\bm_\be] [-\b-e\be|-\b--\b-e\ben\bnd\bd _\bt_\bi_\bm_\be] [-\b-S\bS|-\b--\b-s\bst\bte\bep\bp _\bs_\be_\bc_\bo_\bn_\bd_\bs]
-
- The start and end of the time series you would like to display, and
- which R\bRR\bRA\bA the data should come from. Defaults are: 1 day ago until
- now, with the best possible resolution. S\bSt\bta\bar\brt\bt and e\ben\bnd\bd can be speci-
- fied in several formats, see rrdfetch and rrdgraph_examples. By
- default, r\brr\brd\bdt\bto\boo\bol\bl g\bgr\bra\bap\bph\bh calculates the width of one pixel in the
- time domain and tries to get data from an R\bRR\bRA\bA with that resolution.
- With the s\bst\bte\bep\bp option you can alter this behaviour. If you want
- r\brr\brd\bdt\bto\boo\bol\bl g\bgr\bra\bap\bph\bh to get data at a one-hour resolution from the R\bRR\bRD\bD,
- set s\bst\bte\bep\bp to 3'600. Note: a step smaller than one pixel will
- silently be ignored.
-
- Labels
- [-\b-t\bt|-\b--\b-t\bti\bit\btl\ble\be _\bs_\bt_\br_\bi_\bn_\bg] [-\b-v\bv|-\b--\b-v\bve\ber\brt\bti\bic\bca\bal\bl-\b-l\bla\bab\bbe\bel\bl _\bs_\bt_\br_\bi_\bn_\bg]
-
- A horizontal string at the top of the graph and/or a vertically
- placed string at the left hand side of the graph.
-
- Size
- [-\b-w\bw|-\b--\b-w\bwi\bid\bdt\bth\bh _\bp_\bi_\bx_\be_\bl_\bs] [-\b-h\bh|-\b--\b-h\bhe\bei\big\bgh\bht\bt _\bp_\bi_\bx_\be_\bl_\bs] [-\b-j\bj|-\b--\b-o\bon\bnl\bly\by-\b-g\bgr\bra\bap\bph\bh]
-
- The width and height of the c\bca\ban\bnv\bva\bas\bs (the part of the graph with the
- actual data and such). This defaults to 400 pixels by 100 pixels.
-
- If you specify the -\b--\b-o\bon\bnl\bly\by-\b-g\bgr\bra\bap\bph\bh option and set the height < 32 pix-
- els you will get a tiny graph image (thumbnail) to use as an icon
- for use in an overview, for example. All labeling will be stripped
- off the graph.
-
- Limits
- [-\b-u\bu|-\b--\b-u\bup\bpp\bpe\ber\br-\b-l\bli\bim\bmi\bit\bt _\bv_\ba_\bl_\bu_\be] [-\b-l\bl|-\b--\b-l\blo\bow\bwe\ber\br-\b-l\bli\bim\bmi\bit\bt _\bv_\ba_\bl_\bu_\be] [-\b-r\br|-\b--\b-r\bri\big\bgi\bid\bd]
-
- By default the graph will be autoscaling so that it will adjust the
- y-axis to the range of the data. You can change this behaviour by
- explicitly setting the limits. The displayed y-axis will then range
- at least from l\blo\bow\bwe\ber\br-\b-l\bli\bim\bmi\bit\bt to u\bup\bpp\bpe\ber\br-\b-l\bli\bim\bmi\bit\bt. Autoscaling will still
- permit those boundaries to be stretched unless the r\bri\big\bgi\bid\bd option is
- set.
-
- [-\b-A\bA|-\b--\b-a\bal\blt\bt-\b-a\bau\but\bto\bos\bsc\bca\bal\ble\be]
-
- Sometimes the default algorithm for selecting the y-axis scale is
- not satisfactory. Normally the scale is selected from a predefined
- set of ranges and this fails miserably when you need to graph some-
- thing like "260 + 0.001 * sin(x)". This option calculates the mini-
- mum and maximum y-axis from the actual minimum and maximum data
- values. Our example would display slightly less than "260-0.001" to
- slightly more than "260+0.001" (this feature was contributed by
- Sasha Mikheev).
+ g\bgr\bra\bap\bph\bhv\bv
+
+ This alternate version of g\bgr\bra\bap\bph\bh takes the same arguments and performs
+ the same function. The _\bv stands for _\bv_\be_\br_\bb_\bo_\bs_\be, which describes the output
+ returned. g\bgr\bra\bap\bph\bhv\bv will return a lot of information about the graph using
+ the same format as rrdtool info (key = value). See the bottom of the
+ document for more information.
+
+ _\bf_\bi_\bl_\be_\bn_\ba_\bm_\be
+
+ The name and path of the graph to generate. It is recommended to end
+ this in ".png", ".svg" or ".eps", but R\bRR\bRD\bDt\bto\boo\bol\bl does not enforce this.
+
+ _\bf_\bi_\bl_\be_\bn_\ba_\bm_\be can be '"-"' to send the image to "stdout". In this case, no
+ other output is generated.
+
+ T\bTi\bim\bme\be r\bra\ban\bng\bge\be
+
+ [-\b-s\bs|-\b--\b-s\bst\bta\bar\brt\bt _\bt_\bi_\bm_\be] [-\b-e\be|-\b--\b-e\ben\bnd\bd _\bt_\bi_\bm_\be] [-\b-S\bS|-\b--\b-s\bst\bte\bep\bp _\bs_\be_\bc_\bo_\bn_\bd_\bs]
+
+ The start and end of the time series you would like to display, and
+ which R\bRR\bRA\bA the data should come from. Defaults are: 1 day ago until
+ now, with the best possible resolution. S\bSt\bta\bar\brt\bt and e\ben\bnd\bd can be specified
+ in several formats, see AT-STYLE TIME SPECIFICATION and rrdgraph_exam-
+ ples. By default, r\brr\brd\bdt\bto\boo\bol\bl g\bgr\bra\bap\bph\bh calculates the width of one pixel in
+ the time domain and tries to get data from an R\bRR\bRA\bA with that resolution.
+ With the s\bst\bte\bep\bp option you can alter this behaviour. If you want r\brr\brd\bdt\bto\boo\bol\bl
+ g\bgr\bra\bap\bph\bh to get data at a one-hour resolution from the R\bRR\bRD\bD, set s\bst\bte\bep\bp to
+ 3'600. Note: a step smaller than one pixel will silently be ignored.
+
+ L\bLa\bab\bbe\bel\bls\bs
+
+ [-\b-t\bt|-\b--\b-t\bti\bit\btl\ble\be _\bs_\bt_\br_\bi_\bn_\bg] [-\b-v\bv|-\b--\b-v\bve\ber\brt\bti\bic\bca\bal\bl-\b-l\bla\bab\bbe\bel\bl _\bs_\bt_\br_\bi_\bn_\bg]
+
+ A horizontal string at the top of the graph and/or a vertically placed
+ string at the left hand side of the graph.
+
+ S\bSi\biz\bze\be
+
+ [-\b-w\bw|-\b--\b-w\bwi\bid\bdt\bth\bh _\bp_\bi_\bx_\be_\bl_\bs] [-\b-h\bh|-\b--\b-h\bhe\bei\big\bgh\bht\bt _\bp_\bi_\bx_\be_\bl_\bs] [-\b-j\bj|-\b--\b-o\bon\bnl\bly\by-\b-g\bgr\bra\bap\bph\bh]
+ [-\b-D\bD|-\b--\b-f\bfu\bul\bll\bl-\b-s\bsi\biz\bze\be-\b-m\bmo\bod\bde\be]
+
+ By default, the width and height of the c\bca\ban\bnv\bva\bas\bs (the part with the
+ actual data and such). This defaults to 400 pixels by 100 pixels.
+
+ If you specify the -\b--\b-f\bfu\bul\bll\bl-\b-s\bsi\biz\bze\be-\b-m\bmo\bod\bde\be option, the width and height spec-
+ ify the final dimensions of the output image and the canvas is automat-
+ ically resized to fit.
+
+ If you specify the -\b--\b-o\bon\bnl\bly\by-\b-g\bgr\bra\bap\bph\bh option and set the height < 32 pixels
+ you will get a tiny graph image (thumbnail) to use as an icon for use
+ in an overview, for example. All labeling will be stripped off the
+ graph.
+
+ L\bLi\bim\bmi\bit\bts\bs
+
+ [-\b-u\bu|-\b--\b-u\bup\bpp\bpe\ber\br-\b-l\bli\bim\bmi\bit\bt _\bv_\ba_\bl_\bu_\be] [-\b-l\bl|-\b--\b-l\blo\bow\bwe\ber\br-\b-l\bli\bim\bmi\bit\bt _\bv_\ba_\bl_\bu_\be] [-\b-r\br|-\b--\b-r\bri\big\bgi\bid\bd]
+
+ By default the graph will be autoscaling so that it will adjust the
+ y-axis to the range of the data. You can change this behaviour by
+ explicitly setting the limits. The displayed y-axis will then range at
+ least from l\blo\bow\bwe\ber\br-\b-l\bli\bim\bmi\bit\bt to u\bup\bpp\bpe\ber\br-\b-l\bli\bim\bmi\bit\bt. Autoscaling will still permit
+ those boundaries to be stretched unless the r\bri\big\bgi\bid\bd option is set.
+
+ [-\b-A\bA|-\b--\b-a\bal\blt\bt-\b-a\bau\but\bto\bos\bsc\bca\bal\ble\be]
+
+ Sometimes the default algorithm for selecting the y-axis scale is not
+ satisfactory. Normally the scale is selected from a predefined set of
+ ranges and this fails miserably when you need to graph something like
+ "260 + 0.001 * sin(x)". This option calculates the minimum and maximum
+ y-axis from the actual minimum and maximum data values. Our example
+ would display slightly less than "260-0.001" to slightly more than
+ "260+0.001" (this feature was contributed by Sasha Mikheev).
+
+ [-\b-J\bJ|-\b--\b-a\bal\blt\bt-\b-a\bau\but\bto\bos\bsc\bca\bal\ble\be-\b-m\bmi\bin\bn]
+
+ Where "--alt-autoscale" will modify both the absolute maximum AND mini-
+ mum values, this option will only affect the minimum value. The maximum
+ value, if not defined on the command line, will be 0. This option can
+ be useful when graphing router traffic when the WAN line uses compres-
+ sion, and thus the throughput may be higher than the WAN line speed.
+
+ [-\b-M\bM|-\b--\b-a\bal\blt\bt-\b-a\bau\but\bto\bos\bsc\bca\bal\ble\be-\b-m\bma\bax\bx]
- [-\b-J\bJ|-\b--\b-a\bal\blt\bt-\b-a\bau\but\bto\bos\bsc\bca\bal\ble\be-\b-m\bmi\bin\bn]
+ Where "--alt-autoscale" will modify both the absolute maximum AND mini-
+ mum values, this option will only affect the maximum value. The minimum
+ value, if not defined on the command line, will be 0. This option can
+ be useful when graphing router traffic when the WAN line uses compres-
+ sion, and thus the throughput may be higher than the WAN line speed.
- Where "--alt-autoscale" will modify both the absolute maximum AND
- minimum values, this option will only affect the minimum value. The
- maximum value, if not defined on the command line, will be 0. This
- option can be useful when graphing router traffic when the WAN line
- uses compression, and thus the throughput may be higher than the
- WAN line speed.
+ [-\b-N\bN|-\b--\b-n\bno\bo-\b-g\bgr\bri\bid\bdf\bfi\bit\bt]
- [-\b-M\bM|-\b--\b-a\bal\blt\bt-\b-a\bau\but\bto\bos\bsc\bca\bal\ble\be-\b-m\bma\bax\bx]
+ In order to avoid anti-aliasing blurring effects rrdtool snaps points
+ to device resolution pixels, this results in a crisper aperance. If
+ this is not to your liking, you can use this switch to turn this
+ behaviour off.
- Where "--alt-autoscale" will modify both the absolute maximum AND
- minimum values, this option will only affect the maximum value. The
- minimum value, if not defined on the command line, will be 0. This
- option can be useful when graphing router traffic when the WAN line
- uses compression, and thus the throughput may be higher than the
- WAN line speed.
+ Gridfitting is turned off for PDF, EPS, SVG output by default.
- [-\b-N\bN|-\b--\b-n\bno\bo-\b-g\bgr\bri\bid\bdf\bfi\bit\bt]
+ G\bGr\bri\bid\bd
- In order to avoid anti-aliasing effects gridlines are placed on
- integer pixel values. This is by default done by extending the
- scale so that gridlines happens to be spaced using an integer num-
- ber of pixels and also start on an integer pixel value. This might
- extend the scale too much for some logarithmic scales and for lin-
- ear scales where -\b--\b-a\bal\blt\bt-\b-a\bau\but\bto\bos\bsc\bca\bal\ble\be is needed. Using -\b--\b-n\bno\bo-\b-g\bgr\bri\bid\bdf\bfi\bit\bt
- disables modification of the scale.
- X-Grid
+ X-Axis
[-\b-x\bx|-\b--\b-x\bx-\b-g\bgr\bri\bid\bd _\bG_\bT_\bM:\b:_\bG_\bS_\bT:\b:_\bM_\bT_\bM:\b:_\bM_\bS_\bT:\b:_\bL_\bT_\bM:\b:_\bL_\bS_\bT:\b:_\bL_\bP_\bR:\b:_\bL_\bF_\bM]
[-\b-x\bx|-\b--\b-x\bx-\b-g\bgr\bri\bid\bd n\bno\bon\bne\be]
each day. The labels are placed exactly between two major grid
lines as they specify the complete day and not just midnight.
- Y-Grid
+ Y-Axis
[-\b-y\by|-\b--\b-y\by-\b-g\bgr\bri\bid\bd _\bg_\br_\bi_\bd _\bs_\bt_\be_\bp:\b:_\bl_\ba_\bb_\be_\bl _\bf_\ba_\bc_\bt_\bo_\br]
[-\b-y\by|-\b--\b-y\by-\b-g\bgr\bri\bid\bd n\bno\bon\bne\be]
notation. Note that for linear graphs, SI notation is used by
default.
- Miscellaneous
- [-\b-z\bz|-\b--\b-l\bla\baz\bzy\by]
+ M\bMi\bis\bsc\bce\bel\bll\bla\ban\bne\beo\bou\bus\bs
+
+ [-\b-z\bz|-\b--\b-l\bla\baz\bzy\by]
+
+ Only generate the graph if the current graph is out of date or not
+ existent. Note, that only the image size will be returned, if you run
+ with lazy even when using graphv.
+
+ [-\b-f\bf|-\b--\b-i\bim\bmg\bgi\bin\bnf\bfo\bo _\bp_\br_\bi_\bn_\bt_\bf_\bs_\bt_\br]
+
+ After the image has been created, the graph function uses printf
+ together with this format string to create output similar to the PRINT
+ function, only that the printf function is supplied with the parameters
+ _\bf_\bi_\bl_\be_\bn_\ba_\bm_\be, _\bx_\bs_\bi_\bz_\be and _\by_\bs_\bi_\bz_\be. In order to generate an I\bIM\bMG\bG tag suitable for
+ including the graph into a web page, the command line would look like
+ this:
+
+ --imginfo '<IMG SRC="/img/%s" WIDTH="%lu" HEIGHT="%lu" ALT="Demo">'
+
+ [-\b-c\bc|-\b--\b-c\bco\bol\blo\bor\br _\bC_\bO_\bL_\bO_\bR_\bT_\bA_\bG#_\br_\br_\bg_\bg_\bb_\bb[_\ba_\ba]]
+
+ Override the default colors for the standard elements of the graph. The
+ _\bC_\bO_\bL_\bO_\bR_\bT_\bA_\bG is one of "BACK" background, "CANVAS" for the background of
+ the actual graph, "SHADEA" for the left and top border, "SHADEB" for
+ the right and bottom border, "GRID", "MGRID" for the major grid, "FONT"
+ for the color of the font, "AXIS" for the axis of the graph, "FRAME"
+ for the line around the color spots and finally "ARROW" for the arrow
+ head pointing up and forward. Each color is composed out of three hex-
+ adecimal numbers specifying its rgb color component (00 is off, FF is
+ maximum) of red, green and blue. Optionally you may add another hex-
+ adecimal number specifying the transparency (FF is solid). You may set
+ this option several times to alter multiple defaults.
+
+ A green arrow is made by: "--color ARROW#00FF00"
+
+ [-\b--\b-z\bzo\boo\bom\bm _\bf_\ba_\bc_\bt_\bo_\br]
+
+ Zoom the graphics by the given amount. The factor must be > 0
+
+ [-\b-n\bn|-\b--\b-f\bfo\bon\bnt\bt _\bF_\bO_\bN_\bT_\bT_\bA_\bG:\b:_\bs_\bi_\bz_\be:\b:[_\bf_\bo_\bn_\bt]]
+
+ This lets you customize which font to use for the various text elements
+ on the RRD graphs. "DEFAULT" sets the default value for all elements,
+ "TITLE" for the title, "AXIS" for the axis labels, "UNIT" for the ver-
+ tical unit label, "LEGEND" for the graph legend.
+
+ Use Times for the title: "--font TITLE:13:Times"
+
+ If you do not give a font string you can modify just the sice of the
+ default font: "--font TITLE:13:".
+
+ If you specify the size 0 then you can modify just the font without
+ touching the size. This is especially usefull for altering the default
+ font without resetting the default fontsizes: "--font
+ DEFAULT:0:Courier".
+
+ RRDtool comes with a preset default font. You can set the environment
+ variable "RRD_DEFAULT_FONT" if you want to change this.
+
+ RRDtool uses Pango for its font handling. This means you can to use the
+ full Pango syntax when selecting your font:
+
+ The font name has the form "[_\bF_\bA_\bM_\bI_\bL_\bY_\b-_\bL_\bI_\bS_\bT] [_\bS_\bT_\bY_\bL_\bE_\b-_\bO_\bP_\bT_\bI_\bO_\bN_\bS] [_\bS_\bI_\bZ_\bE]",
+ where _\bF_\bA_\bM_\bI_\bL_\bY_\b-_\bL_\bI_\bS_\bT is a comma separated list of families optionally ter-
+ minated by a comma, _\bS_\bT_\bY_\bL_\bE_\b__\bO_\bP_\bT_\bI_\bO_\bN_\bS is a whitespace separated list of
+ words where each WORD describes one of style, variant, weight, stretch,
+ or gravity, and _\bS_\bI_\bZ_\bE is a decimal number (size in points) or optionally
+ followed by the unit modifier "px" for absolute size. Any one of the
+ options may be absent.
+
+ [-\b-R\bR|-\b--\b-f\bfo\bon\bnt\bt-\b-r\bre\ben\bnd\bde\ber\br-\b-m\bmo\bod\bde\be {n\bno\bor\brm\bma\bal\bl,l\bli\big\bgh\bht\bt,m\bmo\bon\bno\bo}]
+
+ There are 3 font render modes:
+
+ n\bno\bor\brm\bma\bal\bl: Full Hinting and Antialiasing (default)
+
+ l\bli\big\bgh\bht\bt: Slight Hinting and Antialiasing
+
+ m\bmo\bon\bno\bo: Full Hinting and NO Antialiasing
+
+ [-\b-B\bB|-\b--\b-f\bfo\bon\bnt\bt-\b-s\bsm\bmo\boo\bot\bth\bhi\bin\bng\bg-\b-t\bth\bhr\bre\bes\bsh\bho\bol\bld\bd _\bs_\bi_\bz_\be]
- Only generate the graph if the current graph is out of date or not
- existent.
+ (this gets ignored in 1.3 for now!)
- [-\b-f\bf|-\b--\b-i\bim\bmg\bgi\bin\bnf\bfo\bo _\bp_\br_\bi_\bn_\bt_\bf_\bs_\bt_\br]
+ This specifies the largest font size which will be rendered bitmapped,
+ that is, without any font smoothing. By default, no text is rendered
+ bitmapped.
- After the image has been created, the graph function uses printf
- together with this format string to create output similar to the
- PRINT function, only that the printf function is supplied with the
- parameters _\bf_\bi_\bl_\be_\bn_\ba_\bm_\be, _\bx_\bs_\bi_\bz_\be and _\by_\bs_\bi_\bz_\be. In order to generate an I\bIM\bMG\bG
- tag suitable for including the graph into a web page, the command
- line would look like this:
+ [-\b-P\bP|-\b--\b-p\bpa\ban\bng\bgo\bo-\b-m\bma\bar\brk\bku\bup\bp]
- --imginfo '<IMG SRC="/img/%s" WIDTH="%lu" HEIGHT="%lu" ALT="Demo">'
+ All text in rrdtool is rendered using Pango. With the -\b--\b-p\bpa\ban\bng\bgo\bo-\b-m\bma\bar\brk\bku\bup\bp
+ option, all text will be processed by pango markup. This allows to
+ embed some simple html like markup tags using
- [-\b-c\bc|-\b--\b-c\bco\bol\blo\bor\br _\bC_\bO_\bL_\bO_\bR_\bT_\bA_\bG#_\br_\br_\bg_\bg_\bb_\bb[_\ba_\ba]]
+ <span key="value">text</span>
- Override the default colors for the standard elements of the graph.
- The _\bC_\bO_\bL_\bO_\bR_\bT_\bA_\bG is one of "BACK" background, "CANVAS" for the back-
- ground of the actual graph, "SHADEA" for the left and top border,
- "SHADEB" for the right and bottom border, "GRID", "MGRID" for the
- major grid, "FONT" for the color of the font, "AXIS" for the axis
- of the graph, "FRAME" for the line around the color spots and
- finally "ARROW" for the arrow head pointing up and forward. Each
- color is composed out of three hexadecimal numbers specifying its
- rgb color component (00 is off, FF is maximum) of red, green and
- blue. Optionally you may add another hexadecimal number specifying
- the transparency (FF is solid). You may set this option several
- times to alter multiple defaults.
+ Apart from the verbose syntax, there are also the following short tags
+ available.
- A green arrow is made by: "--color ARROW#00FF00"
+ b Bold
+ big Makes font relatively larger, equivalent to <span size="larger">
+ i Italic
+ s Strikethrough
+ sub Subscript
+ sup Superscript
+ small Makes font relatively smaller, equivalent to <span size="smaller">
+ tt Monospace font
+ u Underline
- [-\b--\b-z\bzo\boo\bom\bm _\bf_\ba_\bc_\bt_\bo_\br]
+ More details on <http://developer.gnome.org/doc/API/2.0/pango/Pango-
+ MarkupFormat.html>.
- Zoom the graphics by the given amount. The factor must be > 0
+ [-\b-G\bG|-\b--\b-g\bgr\bra\bap\bph\bh-\b-r\bre\ben\bnd\bde\ber\br-\b-m\bmo\bod\bde\be {n\bno\bor\brm\bma\bal\bl,m\bmo\bon\bno\bo}]
- [-\b-n\bn|-\b--\b-f\bfo\bon\bnt\bt _\bF_\bO_\bN_\bT_\bT_\bA_\bG:\b:_\bs_\bi_\bz_\be:\b:[_\bf_\bo_\bn_\bt]]
+ There are 2 render modes:
- This lets you customize which font to use for the various text ele-
- ments on the RRD graphs. "DEFAULT" sets the default value for all
- elements, "TITLE" for the title, "AXIS" for the axis labels, "UNIT"
- for the vertical unit label, "LEGEND" for the graph legend.
+ n\bno\bor\brm\bma\bal\bl: Graphs are fully Antialiased (default)
- Use Times for the title: "--font TITLE:13:/usr/lib/fonts/times.ttf"
+ m\bmo\bon\bno\bo: No Antialiasing
- If you do not give a font string you can modify just the sice of
- the default font: "--font TITLE:13:".
+ [-\b-E\bE|-\b--\b-s\bsl\blo\bop\bpe\be-\b-m\bmo\bod\bde\be]
- If you specify the size 0 then you can modify just the font without
- touching the size. This is especially usefull for altering the
- default font without resetting the default fontsizes: "--font
- DEFAULT:0:/usr/lib/fonts/times.ttf".
+ RRDtool graphs are composed of stair case curves by default. This is in
+ line with the way RRDtool calculates its data. Some people favor a more
+ 'organic' look for their graphs even though it is not all that true.
- RRDtool comes with a preset default font. You can set the environ-
- ment variable "RRD_DEFAULT_FONT" if you want to change this.
+ [-\b-a\ba|-\b--\b-i\bim\bmg\bgf\bfo\bor\brm\bma\bat\bt P\bPN\bNG\bG|S\bSV\bVG\bG|E\bEP\bPS\bS|P\bPD\bDF\bF]
- Truetype fonts are only supported for PNG output. See below.
+ Image format for the generated graph. For the vector formats you can
+ choose among the standard Postscript fonts Courier-Bold,
+ Courier-BoldOblique, Courier-Oblique, Courier, Helvetica-Bold, Hel-
+ vetica-BoldOblique, Helvetica-Oblique, Helvetica, Symbol, Times-Bold,
+ Times-BoldItalic, Times-Italic, Times-Roman, and ZapfDingbats.
- [-\b-R\bR|-\b--\b-f\bfo\bon\bnt\bt-\b-r\bre\ben\bnd\bde\ber\br-\b-m\bmo\bod\bde\be {_\bn_\bo_\br_\bm_\ba_\bl,_\bl_\bi_\bg_\bh_\bt,_\bm_\bo_\bn_\bo}]
+ [-\b-i\bi|-\b--\b-i\bin\bnt\bte\ber\brl\bla\bac\bce\bed\bd]
- This lets you customize the strength of the font smoothing, or dis-
- able it entirely using _\bm_\bo_\bn_\bo. By default, _\bn_\bo_\br_\bm_\ba_\bl font smoothing is
- used.
+ (this gets ignored in 1.3 for now!)
- [-\b-B\bB|-\b--\b-f\bfo\bon\bnt\bt-\b-s\bsm\bmo\boo\bot\bth\bhi\bin\bng\bg-\b-t\bth\bhr\bre\bes\bsh\bho\bol\bld\bd _\bs_\bi_\bz_\be]
+ If images are interlaced they become visible on browsers more quickly.
- This specifies the largest font size which will be rendered
- bitmapped, that is, without any font smoothing. By default, no text
- is rendered bitmapped.
+ [-\b-g\bg|-\b--\b-n\bno\bo-\b-l\ble\beg\bge\ben\bnd\bd]
- [-\b-E\bE|-\b--\b-s\bsl\blo\bop\bpe\be-\b-m\bmo\bod\bde\be]
+ Suppress generation of the legend; only render the graph.
- RRDtool graphs are composed of stair case curves by default. This
- is in line with the way RRDtool calculates its data. Some people
- favor a more 'organic' look for their graphs even though it is not
- all that true.
+ [-\b-F\bF|-\b--\b-f\bfo\bor\brc\bce\be-\b-r\bru\bul\ble\bes\bs-\b-l\ble\beg\bge\ben\bnd\bd]
- [-\b-a\ba|-\b--\b-i\bim\bmg\bgf\bfo\bor\brm\bma\bat\bt P\bPN\bNG\bG|S\bSV\bVG\bG|E\bEP\bPS\bS|P\bPD\bDF\bF]
+ Force the generation of HRULE and VRULE legends even if those HRULE or
+ VRULE will not be drawn because out of graph boundaries (mimics
+ behaviour of pre 1.0.42 versions).
- Image format for the generated graph. For the vector formats you
- can choose among the standard Postscript fonts Courier-Bold,
- Courier-BoldOblique, Courier-Oblique, Courier, Helvetica-Bold, Hel-
- vetica-BoldOblique, Helvetica-Oblique, Helvetica, Symbol,
- Times-Bold, Times-BoldItalic, Times-Italic, Times-Roman, and ZapfD-
- ingbats.
+ [-\b-T\bT|-\b--\b-t\bta\bab\bbw\bwi\bid\bdt\bth\bh _\bv_\ba_\bl_\bu_\be]
- [-\b-i\bi|-\b--\b-i\bin\bnt\bte\ber\brl\bla\bac\bce\bed\bd]
+ By default the tab-width is 40 pixels, use this option to change it.
- If images are interlaced they become visible on browsers more
- quickly.
+ [-\b-b\bb|-\b--\b-b\bba\bas\bse\be _\bv_\ba_\bl_\bu_\be]
- [-\b-g\bg|-\b--\b-n\bno\bo-\b-l\ble\beg\bge\ben\bnd\bd]
+ If you are graphing memory (and NOT network traffic) this switch should
+ be set to 1024 so that one Kb is 1024 byte. For traffic measurement, 1
+ kb/s is 1000 b/s.
- Suppress generation of the legend; only render the graph.
+ [-\b-W\bW|-\b--\b-w\bwa\bat\bte\ber\brm\bma\bar\brk\bk _\bs_\bt_\br_\bi_\bn_\bg]
- [-\b-F\bF|-\b--\b-f\bfo\bor\brc\bce\be-\b-r\bru\bul\ble\bes\bs-\b-l\ble\beg\bge\ben\bnd\bd]
+ Adds the given string as a watermark, horizontally centred, at the bot-
+ tom of the graph.
- Force the generation of HRULE and VRULE legends even if those HRULE
- or VRULE will not be drawn because out of graph boundaries (mimics
- behaviour of pre 1.0.42 versions).
+ D\bDa\bat\bta\ba a\ban\bnd\bd v\bva\bar\bri\bia\bab\bbl\ble\bes\bs
- [-\b-T\bT|-\b--\b-t\bta\bab\bbw\bwi\bid\bdt\bth\bh _\bv_\ba_\bl_\bu_\be]
+ D\bDE\bEF\bF:\b:_\bv_\bn_\ba_\bm_\be=\b=_\br_\br_\bd_\bf_\bi_\bl_\be:\b:_\bd_\bs_\b-_\bn_\ba_\bm_\be:\b:_\bC_\bF[:\b:s\bst\bte\bep\bp=\b=_\bs_\bt_\be_\bp][:\b:s\bst\bta\bar\brt\bt=\b=_\bt_\bi_\bm_\be][:\b:e\ben\bnd\bd=\b=_\bt_\bi_\bm_\be]
- By default the tab-width is 40 pixels, use this option to change
- it.
+ C\bCD\bDE\bEF\bF:\b:_\bv_\bn_\ba_\bm_\be=\b=_\bR_\bP_\bN _\be_\bx_\bp_\br_\be_\bs_\bs_\bi_\bo_\bn
- [-\b-b\bb|-\b--\b-b\bba\bas\bse\be _\bv_\ba_\bl_\bu_\be]
+ V\bVD\bDE\bEF\bF:\b:_\bv_\bn_\ba_\bm_\be=\b=_\bR_\bP_\bN _\be_\bx_\bp_\br_\be_\bs_\bs_\bi_\bo_\bn
- If you are graphing memory (and NOT network traffic) this switch
- should be set to 1024 so that one Kb is 1024 byte. For traffic mea-
- surement, 1 kb/s is 1000 b/s.
+ You need at least one D\bDE\bEF\bF statement to generate anything. The other
+ statements are useful but optional. See rrdgraph_data and rrdgraph_rpn
+ for the exact format.
- [-\b-W\bW|-\b--\b-w\bwa\bat\bte\ber\brm\bma\bar\brk\bk _\bs_\bt_\br_\bi_\bn_\bg]
+ G\bGr\bra\bap\bph\bh a\ban\bnd\bd p\bpr\bri\bin\bnt\bt e\bel\ble\bem\bme\ben\bnt\bts\bs
- Adds the given string as a watermark, horizontally centred, at the
- bottom of the graph.
+ You need at least one graph element to generate an image and/or at
+ least one print statement to generate a report. See rrdgraph_graph for
+ the exact format.
- Data and variables
- D\bDE\bEF\bF:\b:_\bv_\bn_\ba_\bm_\be=\b=_\br_\br_\bd_\bf_\bi_\bl_\be:\b:_\bd_\bs_\b-_\bn_\ba_\bm_\be:\b:_\bC_\bF[:\b:s\bst\bte\bep\bp=\b=_\bs_\bt_\be_\bp][:\b:s\bst\bta\bar\brt\bt=\b=_\bt_\bi_\bm_\be][:\b:e\ben\bnd\bd=\b=_\bt_\bi_\bm_\be]
+ g\bgr\bra\bap\bph\bhv\bv
- C\bCD\bDE\bEF\bF:\b:_\bv_\bn_\ba_\bm_\be=\b=_\bR_\bP_\bN _\be_\bx_\bp_\br_\be_\bs_\bs_\bi_\bo_\bn
+ Calling rrdtool with the graphv option will return information in the
+ rrdtool info format. On the command line this means that all output
+ will be in key=value format. When used from the perl and ruby bindings
+ a hash pointer will be returned from the call.
- V\bVD\bDE\bEF\bF:\b:_\bv_\bn_\ba_\bm_\be=\b=_\bR_\bP_\bN _\be_\bx_\bp_\br_\be_\bs_\bs_\bi_\bo_\bn
+ When the filename '-' is given, the contents of the graph itself will
+ also be returned through this interface (hash key 'image'). On the com-
+ mand line the output will look like this:
- You need at least one D\bDE\bEF\bF statement to generate anything. The other
- statements are useful but optional. See rrdgraph_data and rrd-
- graph_rpn for the exact format.
+ print[0] = "0.020833"
+ print[1] = "0.0440833"
+ graph_left = 51
+ graph_top = 22
+ graph_width = 400
+ graph_height = 100
+ image_width = 481
+ image_height = 154
+ value_min = 0.0000000000e+00
+ value_max = 4.0000000000e-02
+ image = BLOB_SIZE:8196
+ [... 8196 bytes of image data ...]
- Graph and print elements
- You need at least one graph element to generate an image and/or at
- least one print statement to generate a report. See rrdgraph_graph
- for the exact format.
+ There is more information returned than in the standard interface.
+ Especially the 'graph_*' keys are new. They help applications that want
+ to know what is where on the graph.
S\bSE\bEE\bE A\bAL\bLS\bSO\bO
rrdgraph gives an overview of how r\brr\brd\bdt\bto\boo\bol\bl g\bgr\bra\bap\bph\bh works. rrdgraph_data
-1.2.28 2008-07-23 RRDGRAPH(1)
+1.3.1 2008-06-29 RRDGRAPH(1)