File:
0.02.59a/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 FreeNATS. If not, see www.gnu.org/licenses
20:
21: For more information see www.purplepixie.org/freenats
22: -------------------------------------------------------------- */
23:
24: require("include.php");
25: $NATS->Start();
26:
27:
28:
29:
30: function ty($y)
31: {
32: global $height;
33: return $height-$y;
34: }
35:
36:
37: // width height suid startx finishx
38:
39: if (isset($_REQUEST['width'])) $width=$_REQUEST['width'];
40: else $width=700;
41: if (isset($_REQUEST['height'])) $width=$_REQUEST['height'];
42: else $height=150;
43:
44: // other incoming stuff
45: if (isset($_REQUEST['draw_spike'])) $draw_spike=$_REQUEST['draw_spike'];
46: else $draw_spike=1;
47: if (isset($_REQUEST['draw_track'])) $draw_spike=$_REQUEST['draw_track'];
48: else $draw_track=1;
49: if (isset($_REQUEST['draw_under'])) $draw_spike=$_REQUEST['draw_under'];
50: else $draw_under=1;
51:
52:
53: // start image
54: $im=@imagecreate($width,$height)
55: or die("Cannot create image");
56:
57: // setup colours
58: $c_white=imagecolorallocate($im,255,255,255);
59: $c_black=imagecolorallocate($im,0,0,0);
60: $c_red=imagecolorallocate($im,250,50,50);
61: $c_axes=imagecolorallocate($im,200,200,200);
62: $c_blue=imagecolorallocate($im,150,150,255);
63: $c_green=imagecolorallocate($im,0,200,0);
64: $c_lightgreen=imagecolorallocate($im,150,250,150);
65: $c_grey=imagecolorallocate($im,150,150,150);
66: $c_orange=imagecolorallocate($im,200,200,0);
67:
68: $c_bg=$c_white;
69: $c_txt=$c_black;
70:
71: // fill background
72: imagefill($im,1,1,$c_bg);
73:
74: function ierror($t)
75: {
76: global $im,$width,$height,$c_red;
77: header("Content-type: image/png");
78: imagestring($im,2,($width/2)-20,$height/2,"ERROR: ".$t,$c_red);
79: imagepng($im);
80: imagedestroy($im);
81: exit();
82: }
83:
84: if (!$NATS_Session->Check($NATS->DB))
85: {
86: ierror("Authorisation Failure");
87: exit();
88: }
89: if ($NATS_Session->userlevel<1) ierror("User Disabled");
90:
91:
92: if (!isset($_REQUEST['nodeid'])) ierror("No node ID");
93: else $nodeid=$_REQUEST['nodeid'];
94:
95: if (!isset($_REQUEST['testid'])) ierror("No test ID");
96:
97: $day=date("d");
98: $month=date("m");
99: $year=date("Y");
100:
101: if (isset($_REQUEST['startx'])) $startx=$_REQUEST['startx'];
102: else
103: { // 0:00 today HMS mo da yr
104: $startx=mktime(0,0,0,$month,$day,$year);
105: //$startx=1203451396;
106: }
107:
108: if (isset($_REQUEST['finishx'])) $finishx=$_REQUEST['finishx'];
109: else $finishx=mktime(23,59,59,$month,$day,$year);
110: //$finishx=1203454996;
111: $periodx=$finishx-$startx;
112: $startt=date("H:i:s d/m/y",$startx);
113: $finisht=date("H:i:s d/m/y",$finishx);
114:
115:
116: // titles and stuff
117: imagestring($im,2,2,2,$startt,$c_txt);
118: // -90 for size 1
119: imagestring($im,2,$width-108,2,$finisht,$c_txt);
120: imagestring($im,4,($width/2)-40,2,$nodeid,$c_txt);
121:
122: // offsets and lengths
123: $xoff=50+1;
124: $xlen=$width-$xoff-5;
125:
126: $yoff=1;
127: $ylen=$height-$yoff-20;
128:
129:
130: // v-axes
131: imageline($im,50,ty(1),50,ty($height-20),$c_axes);
132: imageline($im,$width-5,ty(1),$width-5,ty($height-20),$c_axes);
133: // y-axes
134: imageline($im,50,ty(1),$width-5,ty(1),$c_axes);
135: imageline($im,$width-5,ty($height-20),50,ty($height-20),$c_axes);
136: //ierror("hello");
137:
138: // range data
139: $q="SELECT testvalue FROM fnrecord WHERE testid=\"".ss($_REQUEST['testid'])."\"";
140: $q.=" AND recordx>=".ss($startx)." AND recordx<=".ss($finishx)." ";
141: $q.="ORDER BY testvalue ASC LIMIT 0,1"; // lowest
142: $r=$NATS->DB->Query($q);
143: //ierror($q);
144: if (!$row=$NATS->DB->Fetch_Array($r)) ierror("No data for test");
145: $lowest=$row['testvalue'];
146: $dlow=$lowest;
147: if ($dlow>0) $dlow=0;
148: $NATS->DB->Free($r);
149:
150: $q="SELECT testvalue FROM fnrecord WHERE testid=\"".ss($_REQUEST['testid'])."\"";
151:
152: $q.=" AND recordx>=".ss($startx)." AND recordx<=".ss($_REQUEST['finishx'])." ";
153:
154: $q.= "ORDER BY testvalue DESC LIMIT 0,1"; //highest
155:
156: $r=$NATS->DB->Query($q);
157: $row=$NATS->DB->Fetch_Array($r);
158: $highest=$row['testvalue'];
159: $dhigh=$highest;
160: $NATS->DB->Free($r);
161:
162: $drange=$dhigh-$dlow;
163:
164: // calculate scales
165: $xscale=$xlen/$periodx;
166: if ($drange>0) $yscale=$ylen/$drange;
167: else $yscale=1; // doesn't display but no change!
168:
169: function posx($time) // timex
170: {
171: global $xscale,$startx,$xoff;
172: $drawx=$xscale*($time-$startx);
173: $screenx=$drawx+$xoff;
174: return $screenx;
175: }
176:
177: function posy($value) // stock value
178: {
179: global $yscale,$dlow,$yoff;
180: $drawy=$yscale*($value-$dlow);
181: $screeny=$drawy+$yoff;
182: return $screeny;
183: }
184:
185:
186:
187: // show axes scales
188: imagestring($im,1,2,ty(10),$dlow,$c_txt);
189: imagestring($im,1,2,ty($height-18),$dhigh,$c_txt);
190:
191:
192:
193: // get data and draw
194: $q="SELECT testvalue,alertlevel,recordx FROM fnrecord WHERE testid=\"".ss($_REQUEST['testid'])."\" ";
195: $q.="AND recordx>=".ss($startx)." AND recordx<=".ss($finishx)." ORDER BY recordx ASC";
196: //$q.="LIMIT 0,100";
197: $r=$NATS->DB->Query($q);
198: $lastx=0;
199: $lasty=0;
200:
201: $startval=0;
202: $finishval=0;
203:
204: while ($row=mysql_fetch_array($r))
205: {
206: $x=posx($row['recordx']);
207: $y=posy($row['testvalue']);
208:
209: if ($row['alertlevel']==-1) $c=$c_grey;
210: else if ($row['alertlevel']==0) $c=$c_lightgreen;
211: else if ($row['alertlevel']==1) $c=$c_orange;
212: else if ($row['alertlevel']==2) $c=$c_red;
213: else $c=$c_black;
214:
215: // up lines
216: if ($draw_spike==1) imageline($im,$x,ty(0),$x,ty($y),$c);
217:
218:
219: if ($lastx!=0)
220: {
221: // join-the-dots
222: if ($draw_track==1) imageline($im,$lastx,ty($lasty),$x,ty($y),$c_blue);
223:
224: // bottom line
225: if ($draw_under==1)
226: {
227: if ($row['alertlevel']>0)
228: {
229: imageline($im,$lastx,ty(1),$x,ty(1),$c);
230: imageline($im,$lastx,ty(2),$x,ty(2),$c);
231: }
232: }
233:
234: }
235:
236: //imageellipse($im,$x,ty($y),1,1,$c_red);
237:
238: $lastx=$x;
239: $lasty=$y;
240:
241: }
242: mysql_free_result($r);
243:
244:
245:
246: // output image
247: header("Content-type: image/png");
248: imagepng($im);
249: imagedestroy($im);
250: exit(); // just in case
251:
252: ?>
253: