File:
0.03.01a/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'])) $height=$_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 ( $NATS->Cfg->Get("site.graph.public",0)!=1 )
85: {
86: if (!$NATS_Session->Check($NATS->DB))
87: {
88: ierror("Authorisation Failure");
89: exit();
90: }
91: if ($NATS_Session->userlevel<1) ierror("User Disabled");
92: }
93:
94: if (!isset($_REQUEST['nodeid'])) $nodeid="";
95: else $nodeid=$_REQUEST['nodeid'];
96:
97: if (!isset($_REQUEST['testid'])) ierror("No test ID");
98:
99: $day=date("d");
100: $month=date("m");
101: $year=date("Y");
102:
103: if (isset($_REQUEST['startx'])) $startx=$_REQUEST['startx'];
104: else
105: { // 0:00 today HMS mo da yr
106: $startx=mktime(0,0,0,$month,$day,$year);
107: //$startx=1203451396;
108: }
109:
110: if (isset($_REQUEST['finishx'])) $finishx=$_REQUEST['finishx'];
111: else $finishx=mktime(23,59,59,$month,$day,$year);
112:
113: if ($startx<=0) $startx=time()+$startx;
114: if ($finishx<=0) $finishx=time()+$finishx;
115:
116: //$finishx=1203454996;
117: $periodx=$finishx-$startx;
118: $startt=date("H:i:s d/m/y",$startx);
119: $finisht=date("H:i:s d/m/y",$finishx);
120:
121:
122: // titles and stuff
123: imagestring($im,2,2,2,$startt,$c_txt);
124: // -90 for size 1
125: imagestring($im,2,$width-108,2,$finisht,$c_txt);
126: imagestring($im,4,($width/2)-40,2,$nodeid,$c_txt);
127:
128: // offsets and lengths
129: $xoff=50+1;
130: $xlen=$width-$xoff-5;
131:
132: $yoff=1;
133: $ylen=$height-$yoff-20;
134:
135:
136: // v-axes
137: imageline($im,50,ty(1),50,ty($height-20),$c_axes);
138: imageline($im,$width-5,ty(1),$width-5,ty($height-20),$c_axes);
139: // y-axes
140: imageline($im,50,ty(1),$width-5,ty(1),$c_axes);
141: imageline($im,$width-5,ty($height-20),50,ty($height-20),$c_axes);
142: //ierror("hello");
143:
144: // range data
145: $q="SELECT testvalue FROM fnrecord WHERE testid=\"".ss($_REQUEST['testid'])."\"";
146: $q.=" AND recordx>=".ss($startx)." AND recordx<=".ss($finishx)." ";
147: $q.="ORDER BY testvalue ASC LIMIT 0,1"; // lowest
148: $r=$NATS->DB->Query($q);
149: //ierror($q);
150: if (!$row=$NATS->DB->Fetch_Array($r)) ierror("No data for test");
151: $lowest=$row['testvalue'];
152: $dlow=$lowest;
153: if ($dlow>0) $dlow=0;
154: $NATS->DB->Free($r);
155:
156: $q="SELECT testvalue FROM fnrecord WHERE testid=\"".ss($_REQUEST['testid'])."\"";
157:
158: $q.=" AND recordx>=".ss($startx)." AND recordx<=".ss($_REQUEST['finishx'])." ";
159:
160: $q.= "ORDER BY testvalue DESC LIMIT 0,1"; //highest
161:
162: $r=$NATS->DB->Query($q);
163: $row=$NATS->DB->Fetch_Array($r);
164: $highest=$row['testvalue'];
165: $dhigh=$highest;
166: $NATS->DB->Free($r);
167:
168: $drange=$dhigh-$dlow;
169:
170: // calculate scales
171: $xscale=$xlen/$periodx;
172: if ($drange>0) $yscale=$ylen/$drange;
173: else $yscale=1; // doesn't display but no change!
174:
175: function posx($time) // timex
176: {
177: global $xscale,$startx,$xoff;
178: $drawx=$xscale*($time-$startx);
179: $screenx=$drawx+$xoff;
180: return $screenx;
181: }
182:
183: function posy($value) // stock value
184: {
185: global $yscale,$dlow,$yoff;
186: $drawy=$yscale*($value-$dlow);
187: $screeny=$drawy+$yoff;
188: return $screeny;
189: }
190:
191:
192:
193: // show axes scales
194: imagestring($im,1,2,ty(10),$dlow,$c_txt);
195: imagestring($im,1,2,ty($height-18),$dhigh,$c_txt);
196:
197:
198:
199: // get data and draw
200: $q="SELECT testvalue,alertlevel,recordx FROM fnrecord WHERE testid=\"".ss($_REQUEST['testid'])."\" ";
201: $q.="AND recordx>=".ss($startx)." AND recordx<=".ss($finishx)." ORDER BY recordx ASC";
202: //$q.="LIMIT 0,100";
203: $r=$NATS->DB->Query($q);
204: $lastx=0;
205: $lasty=0;
206:
207: $startval=0;
208: $finishval=0;
209:
210: while ($row=mysql_fetch_array($r))
211: {
212: $x=posx($row['recordx']);
213: $y=posy($row['testvalue']);
214:
215: if ($row['alertlevel']==-1) $c=$c_grey;
216: else if ($row['alertlevel']==0) $c=$c_lightgreen;
217: else if ($row['alertlevel']==1) $c=$c_orange;
218: else if ($row['alertlevel']==2) $c=$c_red;
219: else $c=$c_black;
220:
221: // up lines
222: if ($draw_spike==1) imageline($im,$x,ty(0),$x,ty($y),$c);
223:
224:
225: if ($lastx!=0)
226: {
227: // join-the-dots
228: if ($draw_track==1) imageline($im,$lastx,ty($lasty),$x,ty($y),$c_blue);
229:
230: // bottom line
231: if ($draw_under==1)
232: {
233: if ($row['alertlevel']>0)
234: {
235: imageline($im,$lastx,ty(1),$x,ty(1),$c);
236: imageline($im,$lastx,ty(2),$x,ty(2),$c);
237: }
238: }
239:
240: }
241:
242: //imageellipse($im,$x,ty($y),1,1,$c_red);
243:
244: $lastx=$x;
245: $lasty=$y;
246:
247: }
248: mysql_free_result($r);
249:
250:
251:
252: // output image
253: header("Content-type: image/png");
254: imagepng($im);
255: imagedestroy($im);
256: exit(); // just in case
257:
258: ?>
259: