File:
0.02.16a/server/web/test.graph.php (
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1: 2: ob_start();
3: /* -------------------------------------------------------------
4: This file is part of FreeNATS
5:
6: FreeNATS is (C) Copyright 2008 PurplePixie Systems
7:
8: FreeNATS is free software: you can redistribute it and/or modify
9: it under the terms of the GNU General Public License as published by
10: the Free Software Foundation, either version 3 of the License, or
11: (at your option) any later version.
12:
13: FreeNATS is distributed in the hope that it will be useful,
14: but WITHOUT ANY WARRANTY; without even the implied warranty of
15: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: GNU General Public License for more details.
17:
18: You should have received a copy of the GNU General Public License
19: along with Foobar. If not, see www.gnu.org/licenses
20:
21: For more information see www.purplepixie.org/freenats
22: -------------------------------------------------------------- */
23:
24: require("include.php");
25: $NATS->Start();
26:
27: if (!$NATS_Session->Check($NATS->DB))
28: {
29: header("Location: ./?login_msg=Invalid+Or+Expired+Session");
30: exit();
31: }
32: if ($NATS_Session->userlevel<1) UL_Error("View Test History");
33:
34:
35: function ty($y)
36: {
37: global $height;
38: return $height-$y;
39: }
40:
41:
42: // width height suid startx finishx
43:
44: if (isset($_REQUEST['width'])) $width=$_REQUEST['width'];
45: else $width=700;
46: if (isset($_REQUEST['height'])) $width=$_REQUEST['height'];
47: else $height=150;
48: // start image
49: $im=@imagecreate($width,$height)
50: or die("Cannot create image");
51:
52: // setup colours
53: $c_white=imagecolorallocate($im,255,255,255);
54: $c_black=imagecolorallocate($im,0,0,0);
55: $c_red=imagecolorallocate($im,250,50,50);
56: $c_axes=imagecolorallocate($im,200,200,200);
57: $c_blue=imagecolorallocate($im,150,150,255);
58: $c_green=imagecolorallocate($im,0,200,0);
59: $c_lightgreen=imagecolorallocate($im,150,250,150);
60: $c_grey=imagecolorallocate($im,150,150,150);
61: $c_orange=imagecolorallocate($im,200,200,0);
62:
63: $c_bg=$c_white;
64: $c_txt=$c_black;
65:
66: // fill background
67: imagefill($im,1,1,$c_bg);
68:
69: function ierror($t)
70: {
71: global $im,$width,$height,$c_red;
72: header("Content-type: image/png");
73: imagestring($im,2,($width/2)-20,$height/2,"ERROR: ".$t,$c_red);
74: imagepng($im);
75: imagedestroy($im);
76: exit();
77: }
78:
79:
80: if (!isset($_REQUEST['nodeid'])) ierror("No node ID");
81: else $nodeid=$_REQUEST['nodeid'];
82:
83: $day=date("d");
84: $month=date("m");
85: $year=date("Y");
86:
87: if (isset($_REQUEST['startx'])) $startx=$_REQUEST['startx'];
88: else
89: { // 0:00 today HMS mo da yr
90: $startx=mktime(0,0,0,$month,$day,$year);
91: //$startx=1203451396;
92: }
93:
94: if (isset($_REQUEST['finishx'])) $finishx=$_REQUEST['finishx'];
95: else $finishx=mktime(23,59,59,$month,$day,$year);
96: //$finishx=1203454996;
97: $periodx=$finishx-$startx;
98: $startt=date("H:i:s d/m/y",$startx);
99: $finisht=date("H:i:s d/m/y",$finishx);
100:
101:
102: // titles and stuff
103: imagestring($im,2,2,2,$startt,$c_txt);
104: // -90 for size 1
105: imagestring($im,2,$width-108,2,$finisht,$c_txt);
106: imagestring($im,4,($width/2)-40,2,$nodeid,$c_txt);
107:
108: // v-axes
109: imageline($im,50,ty(1),50,ty($height-20),$c_axes);
110: imageline($im,$width-5,ty(1),$width-5,ty($height-20),$c_axes);
111: // y-axes
112: imageline($im,50,ty(1),$width-5,ty(1),$c_axes);
113: imageline($im,$width-5,ty($height-20),50,ty($height-20),$c_axes);
114: $xoff=50+1;
115: $xlen=$width-$xoff-5;
116:
117: $yoff=1;
118: $ylen=$height-20;
119:
120: //ierror("hello");
121:
122: // range data
123: $q="SELECT testvalue FROM fnrecord WHERE testid=\"".ss($_REQUEST['testid'])."\"";
124: $q.=" AND recordx>=".ss($startx)." AND recordx<=".ss($finishx)." ";
125: $q.="ORDER BY testvalue ASC LIMIT 0,1"; // lowest
126: $r=$NATS->DB->Query($q);
127: //ierror($q);
128: if (!$row=$NATS->DB->Fetch_Array($r)) ierror("No data for test");
129: $lowest=$row['testvalue'];
130: $dlow=$lowest;
131: if ($dlow>0) $dlow=0;
132: $NATS->DB->Free($r);
133:
134: $q="SELECT testvalue FROM fnrecord WHERE testid=\"".ss($_REQUEST['testid'])."\"";
135:
136: $q.=" AND recordx>=".ss($startx)." AND recordx<=".ss($_REQUEST['finishx'])." ";
137:
138: $q.= "ORDER BY testvalue DESC LIMIT 0,1"; //highest
139:
140: $r=$NATS->DB->Query($q);
141: $row=$NATS->DB->Fetch_Array($r);
142: $highest=$row['testvalue'];
143: $dhigh=$highest;
144: $NATS->DB->Free($r);
145:
146: $drange=$dhigh-$dlow;
147:
148: // calculate scales
149: $xscale=$xlen/$periodx;
150: if ($drange>0) $yscale=$ylen/$drange;
151: else $yscale=1; // doesn't display but no change!
152:
153: function posx($time) // timex
154: {
155: global $xscale,$startx,$xoff;
156: $drawx=$xscale*($time-$startx);
157: $screenx=$drawx+$xoff;
158: return $screenx;
159: }
160:
161: function posy($value) // stock value
162: {
163: global $yscale,$dlow,$yoff;
164: $drawy=$yscale*($value-$dlow);
165: $screeny=$drawy+$yoff;
166: return $screeny;
167: }
168:
169:
170:
171: // show axes scales
172: imagestring($im,1,2,ty(10),$dlow,$c_txt);
173: imagestring($im,1,2,ty($height-18),$dhigh,$c_txt);
174:
175:
176:
177: // get data and draw
178: $q="SELECT testvalue,alertlevel,recordx FROM fnrecord WHERE testid=\"".ss($_REQUEST['testid'])."\" ";
179: $q.="AND recordx>=".ss($startx)." AND recordx<=".ss($finishx);
180: //$q.="LIMIT 0,100";
181: $r=$NATS->DB->Query($q);
182: $lastx=0;
183: $lasty=0;
184:
185: $startval=0;
186: $finishval=0;
187:
188: while ($row=mysql_fetch_array($r))
189: {
190: $x=posx($row['recordx']);
191: $y=posy($row['testvalue']);
192:
193: if ($row['alertlevel']==-1) $c=$c_grey;
194: else if ($row['alertlevel']==0) $c=$c_lightgreen;
195: else if ($row['alertlevel']==1) $c=$c_orange;
196: else if ($row['alertlevel']==2) $c=$c_red;
197: else $c=$c_black;
198:
199: // up lines
200: imageline($im,$x,ty(0),$x,ty($y),$c);
201:
202:
203: if ($lastx!=0)
204: {
205: // join-the-dots
206: imageline($im,$lastx,ty($lasty),$x,ty($y),$c_blue);
207:
208: }
209:
210: //imageellipse($im,$x,ty($y),1,1,$c_red);
211:
212: $lastx=$x;
213: $lasty=$y;
214:
215: }
216: mysql_free_result($r);
217:
218:
219:
220: // output image
221: header("Content-type: image/png");
222: imagepng($im);
223: imagedestroy($im);
224: exit(); // just in case
225:
226: ?>
227: