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# Ifc: fix generation of wall openings, now no longer 'forgets' wall parts. 

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@1043 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
pull/2/head
aramis_acg 2011-07-15 21:51:33 +00:00
parent 47836d23e7
commit 0276a09a87
1 changed files with 15 additions and 12 deletions
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27
code/IFCGeometry.cpp
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@ -630,15 +630,17 @@ void QuadrifyPart(const aiVector2D& pmin, const aiVector2D& pmax, XYSortedField&
XYSortedField::iterator start = field.begin();
for(; start != field.end(); ++start) {
const BoundingBox& bb = bbs[(*start).second];
if (bb.second.x > pmin.x && bb.first.x < pmax.x && bb.second.y > pmin.y && bb.first.y < pmax.y) {
if(bb.first.x >= pmax.x) {
break;
}
if (bb.second.x > pmin.x && bb.second.y > pmin.y && bb.first.y < pmax.y) {
xs = bb.first.x;
xe = bb.second.x;
found = true;
break;
}
}
xs = std::max(pmin.x,xs);
xe = std::min(pmax.x,xe);
if (!found) {
// the rectangle [pmin,pend] is opaque, fill it
@ -649,6 +651,10 @@ void QuadrifyPart(const aiVector2D& pmin, const aiVector2D& pmax, XYSortedField&
return;
}
xs = std::max(pmin.x,xs);
xe = std::min(pmax.x,xe);
// see if there's an offset to fill at the top of our quad
if (xs - pmin.x) {
out.push_back(pmin);
out.push_back(aiVector2D(pmin.x,pmax.y));
@ -656,18 +662,20 @@ void QuadrifyPart(const aiVector2D& pmin, const aiVector2D& pmax, XYSortedField&
out.push_back(aiVector2D(xs,pmin.y));
}
// search along the y-axis for all openings that overlap xs and our element
// search along the y-axis for all openings that overlap xs and our quad
float ylast = pmin.y;
found = false;
for(; start != field.end(); ++start) {
const BoundingBox& bb = bbs[(*start).second];
if (bb.first.x > xs || bb.first.y >= pmax.y) {
break;
}
if (bb.second.y > ylast && bb.first.y < pmax.y) {
if (bb.second.y > ylast) {
found = true;
const float ys = std::max(bb.first.y,pmin.y), ye = std::min(bb.second.y,pmax.y);
if (ys - ylast) {
// Divide et impera!
QuadrifyPart( aiVector2D(xs,ylast), aiVector2D(xe,ys) ,field,bbs,out);
}
@ -679,10 +687,6 @@ void QuadrifyPart(const aiVector2D& pmin, const aiVector2D& pmax, XYSortedField&
wnd.push_back(aiVector2D(xe,ys));*/
ylast = ye;
}
if (bb.first.x > xs) {
break;
}
}
if (!found) {
// the rectangle [pmin,pend] is opaque, fill it
@ -693,11 +697,10 @@ void QuadrifyPart(const aiVector2D& pmin, const aiVector2D& pmax, XYSortedField&
return;
}
if (ylast < pmax.y) {
// Divide et impera!
QuadrifyPart( aiVector2D(xs,ylast), aiVector2D(xe,pmax.y) ,field,bbs,out);
}
// Divide et impera! - now for the whole rest
// now for the whole rest
if (pmax.x-xe) {
QuadrifyPart(aiVector2D(xe,pmin.y), pmax ,field,bbs,out);
}