Difference between revisions of "Issue:AiSee crash due to several near edges"
From FollowTheScore
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|Type = Bug | |Type = Bug | ||
|Extension = aiSee | |Extension = aiSee | ||
| − | |Version = 2.2 | + | |Version = 2.2.12 |
|Description = there are several constellations of nearedges and bentnearedges which lead to a program crash | |Description = there are several constellations of nearedges and bentnearedges which lead to a program crash | ||
| − | |Status = | + | |Status = fixed in aiSee 2.2.27 |
}} | }} | ||
Latest revision as of 17:19, 11 December 2007
| Description: | there are several constellations of nearedges and bentnearedges which lead to a program crash |
| Extension / Version: | aiSee / 2.2.12 |
| Type / Status: | Bug / fixed in aiSee 2.2.27 |
Problem
The following graph definition causes a memory violation:
graph: {
title: "A"
rightnearedge: { source:"A" target:"B" }
leftnearedge: { source:"A" target:"C" }
rightbentnearedge: { source:"A" target:"D" }
}
There are more constellations which have the same effect. The following piece of php code tries to identify all dangerous constellations:
foreach ($edges as $edgeId => $edge) {
$n=$ln=$rn=$b=$lb=$rb=0;
$edgeKind = $edge['kind'];
if ($edgeKind == 'near') $n++;
else if ($edgeKind == 'leftnear') $ln++;
else if ($edgeKind == 'rightnear') $rn++;
else if ($edgeKind == 'bentnear') $b++;
else if ($edgeKind == 'leftbentnear') $lb++;
else if ($edgeKind == 'rightbentnear') $rb++;
foreach ($edges as $nEdgeId => $nEdge) {
$from = $edge['source'];
if ($nEdgeId <= $edgeId || $nEdge['source'] != $from) continue;
if ($nEdge['target'] == $edge['target']) {
$this->error("near edges at '$from' point to the same other node '".$edge['target'],'');
}
$nEdgeKind = $nEdge['kind'];
if ($nEdgeKind == 'near') $n++;
else if ($nEdgeKind == 'leftnear') $ln++;
else if ($nEdgeKind == 'rightnear') $rn++;
else if ($nEdgeKind == 'bentnear') $b++;
else if ($nEdgeKind == 'leftbentnear') $lb++;
else if ($nEdgeKind == 'rightbentnear') $rb++;
//$this->parser->errorText .= "checking $edgeKind edge $edgeId against $nEdgeKind edge $nEdgeId at $from: $n,$ln,$rn $b,$lb,$rb:\n";
if (($rn+$ln>=2 && $rb+$lb>=1) ) $this->error("too many near (bent) edges at '$from'",'');
}
}
Reply
Fixed in aiSee 3.0. We'll see if we can fix it for aiSee 2.2.x, too. --Schwallex 15:46, 14 November 2007 (CET)
- Fixed. An updated version of aiSee will be made available shortly.
- --Schwallex 14:18, 21 November 2007 (CET)
