1 <?php // content="text/plain; charset=utf-8"
3 error_reporting(E_ALL & ~E_STRICT & ~E_NOTICE);
5 include ('config_local.php');
7 require_once ('jpgraph/jpgraph.php');
8 require_once ('jpgraph/jpgraph_line.php');
9 require_once ('jpgraph/jpgraph_date.php');
10 require_once ('jpgraph/jpgraph_scatter.php');
11 require_once ('jpgraph/jpgraph_regstat.php');
13 if (! ($db = new PDO("mysql:host=$mysql_host;port=$mysql_port;dbname=$mysql_schema",$mysql_user,$mysql_pwd,array( PDO::ATTR_PERSISTENT => false)))) {
15 die('Не могу подключиться к БД');
19 $db -> exec('SET CHARACTER SET utf8');
21 $type = $_REQUEST['type'];
22 $sensor=$_REQUEST['sensor'];
23 $param=$_REQUEST['param'];
25 if ($type and $param) {
27 $sensor = intval($sensor);
28 $param = intval($param);
31 'select s_description from sensors where id='.$sensor
35 while ($row = $q -> fetch(PDO::FETCH_ASSOC)) {
36 $sensor_name = $row['s_description'];
40 'select st.st_dot_color,st.st_line_color,st.st_description,u.id,u.unit_group from st_parameters st,units u where st.id='.$param.' and st.st_unit=u.id'
44 while ($row = $q -> fetch(PDO::FETCH_ASSOC)) {
45 $param_name = $row['st_description'];
46 $from_unit = $row['id'];
47 $unit_group = $row['unit_group'];
48 $dot_color = $row['st_dot_color'];
49 $line_color = $row['st_line_color'];
52 if (!empty($_COOKIE['unit_'.$unit_group])) {
53 $to_unit=intval($_COOKIE['unit_'.$unit_group]);
59 'select u.name_short from units u where u.id='.$to_unit
63 while ($row = $q -> fetch(PDO::FETCH_ASSOC)) {
64 $param_unit = $row['name_short'];
70 if ($type == 'last24') {
73 'select unix_timestamp(timestamp) as x,unitconv(value,'.$from_unit.','.$to_unit.') as y from sensor_values where timestamp>adddate(now(), -1) and sensor_id='.$sensor.' and parameter_id='.$param.' order by timestamp'
78 } elseif ($type == 'range') {
80 $from = intval($_REQUEST['fromdate']);
81 $to = intval($_REQUEST['todate']);
84 'select unix_timestamp(timestamp) as x,unitconv(value,'.$from_unit.','.$to_unit.') as y from sensor_values where timestamp>=str_to_date("'.$from.'","%Y%m%d%H%i%s") and timestamp<=str_to_date("'.$to.'","%Y%m%d%H%i%s") and sensor_id='.$sensor.' and parameter_id='.$param.' order by timestamp'
93 while ($row = $q -> fetch(PDO::FETCH_ASSOC)) {
101 for ($i = 0; $i < count($xdata); ++$i) {
107 for ($j = $i; $j < count($xdata); ++$j) {
109 $delta = abs($xdata[$i]-$xdata[$j]);
110 if ($delta > $maxdelta) { break; }
112 $weight = 1-$delta/$maxdelta;
113 $total_weight += $weight;
114 $sum += $weight*$ydata[$j];
118 for ($j = $i-1; $j >=0 ; --$j) {
120 $delta = abs($xdata[$i]-$xdata[$j]);
121 if ($delta > $maxdelta) { break; }
123 $weight = 1-$delta/$maxdelta;
124 $total_weight += $weight;
125 $sum += $weight*$ydata[$j];
129 $new_val = $sum/$total_weight;
130 $f_ydata[$i] = $new_val;
135 $g = new Graph(640,480);
136 $g->graph_theme = null;
138 //$g->img->SetAntiAliasing();
140 // We need a linlin scale since we provide both
141 // x and y coordinates for the data points.
142 $g->SetScale('datlin');
143 $g->xaxis->SetLabelAngle(90);
144 $g->xaxis->SetPos("min");
146 // We use a scatterplot to illustrate the original
148 $splot = new ScatterPlot($ydata,$xdata);
152 $splot->mark->SetFillColor($dot_color);
153 $splot->mark->SetColor($dot_color);
154 $splot->mark->SetType(MARK_FILLEDCIRCLE);
155 $splot->mark->SetSize(2);
157 $fplot = new LinePlot($f_ydata,$xdata);
159 $fplot->SetColor($line_color);
160 $fplot->SetWeight(2);
162 $g->SetMargin(50,30,40,$height);
163 $g->title->Set($sensor_name.'/'.$param_name.', '.$param_unit);
164 $g->title->SetFont(FF_DV_SANSSERIF,FS_BOLD,12);
165 $g->SetMarginColor('silver');
167 // Add the plots to the graph and stroke
172 header("Content-Type: text/html; charset=UTF-8");
173 die('Сенсор не выбран!');