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/****************************************************************************
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* RRDtool 1.0.42 Copyright Tobias Oetiker, 1997 - 2000
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****************************************************************************
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****************************************************************************/
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#define DEF_NAM_FMT "%29[_A-Za-z0-9]"
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enum tmt_en {TMT_SECOND=0,TMT_MINUTE,TMT_HOUR,TMT_DAY,
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TMT_WEEK,TMT_MONTH,TMT_YEAR};
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enum grc_en {GRC_CANVAS=0,GRC_BACK,GRC_SHADEA,GRC_SHADEB,
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GRC_GRID,GRC_MGRID,GRC_FONT,GRC_FRAME,GRC_ARROW,__GRC_END__};
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enum gf_en {GF_PRINT=0,GF_GPRINT,GF_COMMENT,GF_HRULE,GF_VRULE,GF_LINE1,
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GF_LINE2,GF_LINE3,GF_AREA,GF_STACK, GF_DEF, GF_CDEF, GF_XPORT };
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enum op_en {OP_NUMBER=0,OP_VARIABLE,OP_INF,OP_PREV,OP_PREV_OTHER,OP_NEGINF,
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OP_UNKN,OP_NOW,OP_TIME,OP_LTIME,OP_ADD,OP_MOD,
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OP_DIV,OP_SIN, OP_DUP, OP_EXC, OP_POP,
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OP_COS,OP_LOG,OP_EXP,OP_LT,OP_LE,OP_GT,OP_GE,OP_EQ,OP_IF,
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OP_MIN,OP_MAX,OP_LIMIT, OP_FLOOR, OP_CEIL,
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enum if_en {IF_GIF=0,IF_PNG=1,IF_GD=2};
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typedef struct rpnp_t {
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double val; /* value for a OP_NUMBER */
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long ptr; /* pointer into the gdes array for OP_VAR */
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double *data; /* pointer to the current value from OP_VAR DAS*/
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long ds_cnt; /* data source count for data pointer */
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long step; /* time step for OP_VAR das */
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typedef struct col_trip_t {
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int red; /* red = -1 is no color */
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int i; /* color index assigned in gif image i=-1 is unasigned*/
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typedef struct xlab_t {
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long minsec; /* minimum sec per pix */
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enum tmt_en gridtm; /* grid interval in what ?*/
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long gridst; /* how many whats per grid*/
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enum tmt_en mgridtm; /* label interval in what ?*/
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long mgridst; /* how many whats per label*/
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enum tmt_en labtm; /* label interval in what ?*/
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long labst; /* how many whats per label*/
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long precis; /* label precision -> label placement*/
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char *stst; /* strftime string*/
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typedef struct ylab_t {
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double grid; /* grid spacing */
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int lfac[4]; /* associated label spacing*/
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/* this structure describes the elements which can make up a graph.
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because they are quite diverse, not all elements will use all the
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possible parts of the structure. */
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#define FMT_LEG_LEN 200
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#define FMT_LEG_LEN 2000
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typedef struct graph_desc_t {
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enum gf_en gf; /* graphing function */
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char vname[30]; /* name of the variable */
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long vidx; /* gdes reference */
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char rrd[255]; /* name of the rrd_file containing data */
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char ds_nam[DS_NAM_SIZE]; /* data source name */
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long ds; /* data source number */
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enum cf_en cf; /* consolidation function */
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col_trip_t col; /* graph color */
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char format[FMT_LEG_LEN+5]; /* format for PRINT AND GPRINT */
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char legend[FMT_LEG_LEN+5]; /* legend*/
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gdPoint legloc; /* location of legend */
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double yrule; /* value for y rule line */
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time_t xrule; /* value for x rule line */
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rpnp_t *rpnp; /* instructions for CDEF function */
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/* description of data fetched for the graph element */
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time_t start,end; /* timestaps for first and last data element */
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unsigned long step; /* time between samples */
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unsigned long ds_cnt; /* how many data sources are there in the fetch */
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long data_first; /* first pointer to this data */
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char **ds_namv; /* name of datasources in the fetch. */
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rrd_value_t *data; /* the raw data drawn from the rrd */
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rrd_value_t *p_data; /* processed data, xsize elments */
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#define ALTYGRID 0x01 /* use alternative y grid algorithm */
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#define ALTAUTOSCALE 0x02 /* use alternative algorithm to find lower and upper bounds */
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#define ALTAUTOSCALE_MAX 0x04 /* use alternative algorithm to find upper bounds */
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#define NOLEGEND 0x08 /* use no legend */
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typedef struct image_desc_t {
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/* configuration of graph */
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char graphfile[MAXPATH]; /* filename for graphic */
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long xsize,ysize; /* graph area size in pixels */
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col_trip_t graph_col[__GRC_END__]; /* real colors for the graph */
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char ylegend[200]; /* legend along the yaxis */
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char title[200]; /* title for graph */
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int draw_x_grid; /* no x-grid at all */
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int draw_y_grid; /* no x-grid at all */
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xlab_t xlab_user; /* user defined labeling for xaxis */
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char xlab_form[200]; /* format for the label on the xaxis */
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double ygridstep; /* user defined step for y grid */
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int ylabfact; /* every how many y grid shall a label be written ? */
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time_t start,end; /* what time does the graph cover */
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unsigned long step; /* any preference for the default step ? */
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rrd_value_t minval,maxval; /* extreme values in the data */
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int rigid; /* do not expand range even with
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char* imginfo; /* construct an <IMG ... tag and return
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int lazy; /* only update the gif if there is reasonable
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probablility that the existing one is out of date */
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int logarithmic; /* scale the yaxis logarithmic */
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enum if_en imgformat; /* image format */
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char* bkg_image; /* background image source */
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char* ovl_image; /* overlay image source */
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char* unit; /* measured value unit */
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/* status information */
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long xorigin,yorigin;/* where is (0,0) of the graph */
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long xgif,ygif; /* total size of the gif */
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int interlaced; /* will the graph be interlaced? */
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double magfact; /* numerical magnitude*/
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long base; /* 1000 or 1024 depending on what we graph */
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char symbol; /* magnitude symbol for y-axis */
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int unitsexponent; /* 10*exponent for units on y-asis */
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int extra_flags; /* flags for boolean options */
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long prt_c; /* number of print elements */
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long gdes_c; /* number of graphics elements */
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graph_desc_t *gdes; /* points to an array of graph elements */
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int xtr(image_desc_t *,time_t);
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int ytr(image_desc_t *, double);
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enum gf_en gf_conv(char *);
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enum if_en if_conv(char *);
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enum tmt_en tmt_conv(char *);
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enum grc_en grc_conv(char *);
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int im_free(image_desc_t *);
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void auto_scale( image_desc_t *, double *, char **, double *);
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void si_unit( image_desc_t *);
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void expand_range(image_desc_t *);
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void reduce_data( enum cf_en, unsigned long, time_t *, time_t *, unsigned long *, unsigned long *, rrd_value_t **);
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int data_fetch( image_desc_t *);
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long find_var(image_desc_t *, char *);
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int data_calc( image_desc_t *);
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int data_proc( image_desc_t *);
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time_t find_first_time( time_t, enum tmt_en, long);
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time_t find_next_time( time_t, enum tmt_en, long);
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void gator( gdImagePtr, int, int);
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int tzoffset(time_t);
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int print_calc(image_desc_t *, char ***);
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int leg_place(image_desc_t *);
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int horizontal_grid(gdImagePtr, image_desc_t *);
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int horizontal_mrtg_grid(gdImagePtr, image_desc_t *);
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int horizontal_log_grid(gdImagePtr, image_desc_t *);
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void vertical_grid( gdImagePtr, image_desc_t *);
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void axis_paint( image_desc_t *, gdImagePtr);
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void grid_paint( image_desc_t *, gdImagePtr);
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gdImagePtr MkLineBrush(image_desc_t *,long, enum gf_en);
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void copyImage(gdImagePtr gif, char *bkg_image, int copy_white);
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int lazy_check(image_desc_t *);
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int graph_paint(image_desc_t *, char ***);
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int gdes_alloc(image_desc_t *);
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int scan_for_col(char *, int, char *);
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int rrd_graph(int, char **, char ***, int *, int *);
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int bad_format(char *);
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rpnp_t * str2rpn(image_desc_t *,char *);
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#define ALTYGRID 0x01 /* use alternative y grid algorithm */
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#define ALTAUTOSCALE 0x02 /* use alternative algorithm to find lower and upper bounds */
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#define ALTAUTOSCALE_MAX 0x04 /* use alternative algorithm to find upper bounds */
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#define NOLEGEND 0x08 /* use no legend */
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#define ALTYMRTG 0x10 /* simulate mrtg's scaling */
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#define NOMINOR 0x20 /* Turn off minor gridlines */
added
removed
myrrd/rrd_graph.h
