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/**************************************************************************
* *
* Regina - A Normal Surface Theory Calculator *
* Computational Engine *
* *
* Copyright (c) 1999-2025, Ben Burton *
* For further details contact Ben Burton (bab@debian.org). *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License as *
* published by the Free Software Foundation; either version 2 of the *
* License, or (at your option) any later version. *
* *
* As an exception, when this program is distributed through (i) the *
* App Store by Apple Inc.; (ii) the Mac App Store by Apple Inc.; or *
* (iii) Google Play by Google Inc., then that store may impose any *
* digital rights management, device limits and/or redistribution *
* restrictions that are required by its terms of service. *
* *
* This program is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <https://www.gnu.org/licenses/>. *
* *
**************************************************************************/
#include "surface/surfacefilter.h"
#include "surface/normalsurface.h"
#include "surface/normalsurfaces.h"
#include "triangulation/dim3.h"
#include "utilities/xmlutils.h"
#define TYPE_AND 1
#define TYPE_OR 2
#define PROPSF_EULER 1001
#define PROPSF_ORIENT 1002
#define PROPSF_COMPACT 1003
#define PROPSF_REALBDRY 1004
namespace regina {
bool SurfaceFilterCombination::accept(const NormalSurface& surface) const {
if (usesAnd_) {
// Combine all child filters using AND.
for (auto child = firstChild(); child; child = child->nextSibling())
if (child->type() == PacketType::SurfaceFilter)
if (! (std::static_pointer_cast<SurfaceFilter>(child)->accept(
surface)))
return false;
return true;
} else {
// Combine all child filters using OR.
for (auto child = firstChild(); child; child = child->nextSibling())
if (child->type() == PacketType::SurfaceFilter)
if (std::static_pointer_cast<SurfaceFilter>(child)->accept(
surface))
return true;
return false;
}
}
void SurfaceFilterCombination::writeXMLPacketData(std::ostream& out,
FileFormat format, bool anon, PacketRefs& refs) const {
writeXMLHeader(out, "filtercomb", format, anon, refs,
true, std::pair("op", (usesAnd_ ? "and" : "or")));
if (format == FileFormat::XmlGen2) {
out << " <filter type=\""
<< regina::xml::xmlEncodeSpecialChars(filterTypeName())
<< "\" typeid=\"" << static_cast<int>(filterType()) << "\">\n"
" <op type=\"" << (usesAnd_ ? "and" : "or") << "\"/>\n"
" </filter>\n";
}
if (! anon)
writeXMLTreeData(out, format, refs);
writeXMLFooter(out, "filtercomb", format);
}
LargeInteger SurfaceFilterProperties::eulerChar(size_t index) const {
auto it = eulerChar_.begin();
advance(it, index);
return *it;
}
bool SurfaceFilterProperties::accept(const NormalSurface& surface) const {
if (! realBoundary_.contains(surface.hasRealBoundary()))
return false;
if (! compactness_.contains(surface.isCompact()))
return false;
// Some properties may only be calculated for compact surfaces.
if (surface.isCompact()) {
if (! orientability_.contains(surface.isOrientable()))
return false;
if (! eulerChar_.empty())
if (! eulerChar_.count(surface.eulerChar()))
return false;
}
// All tests passed.
return true;
}
void SurfaceFilterProperties::writeTextShort(std::ostream& o) const {
bool first = true;
if (eulerChar_.size() > 0) {
first = false;
o << "Euler in {";
for (auto it = eulerChar_.rbegin(); it != eulerChar_.rend(); ++it)
o << ' ' << *it;
o << " }";
}
if (orientability_ != BoolSet(true, true)) {
if (first)
first = false;
else
o << ", ";
if (orientability_.hasTrue())
o << "orientable only";
else if (orientability_.hasFalse())
o << "non-orientable only";
else
o << "reject all orientabilities";
}
if (compactness_ != BoolSet(true, true)) {
if (first)
first = false;
else
o << ", ";
if (compactness_.hasTrue())
o << "compact only";
else if (compactness_.hasFalse())
o << "non-compact only";
else
o << "reject all compactnesses";
}
if (realBoundary_ != BoolSet(true, true)) {
if (first)
first = false;
else
o << ", ";
if (realBoundary_.hasTrue())
o << "real boundary only";
else if (realBoundary_.hasFalse())
o << "no real boundary only";
else
o << "reject all boundary types";
}
if (first)
o << "Accept all surfaces";
}
void SurfaceFilterProperties::writeXMLPacketData(std::ostream& out,
FileFormat format, bool anon, PacketRefs& refs) const {
using regina::xml::xmlValueTag;
if (format == FileFormat::XmlGen2) {
writeXMLHeader(out, "filterprop", format, anon, refs, true);
out << " <filter type=\""
<< regina::xml::xmlEncodeSpecialChars(filterTypeName())
<< "\" typeid=\"" << static_cast<int>(filterType()) << "\">\n";
if (! eulerChar_.empty()) {
out << " <euler> ";
for (const auto& e : eulerChar_)
out << e << ' ';
out << "</euler>\n";
}
if (orientability_ != BoolSet(true, true))
out << " " << xmlValueTag("orbl", orientability_) << '\n';
if (compactness_ != BoolSet(true, true))
out << " " << xmlValueTag("compact", compactness_) << '\n';
if (realBoundary_ != BoolSet(true, true))
out << " " << xmlValueTag("realbdry", realBoundary_) << '\n';
out << " </filter>\n";
} else if (eulerChar_.empty()) {
writeXMLHeader(out, "filterprop", format, anon, refs, true,
std::pair("orbl", orientability_.stringCode()),
std::pair("compact", compactness_.stringCode()),
std::pair("realbdry", realBoundary_.stringCode()));
} else {
std::ostringstream euler;
bool first = true;
for (const auto& e : eulerChar_) {
if (first)
first = false;
else
euler << ',';
euler << e;
}
writeXMLHeader(out, "filterprop", format, anon, refs, true,
std::pair("orbl", orientability_.stringCode()),
std::pair("compact", compactness_.stringCode()),
std::pair("realbdry", realBoundary_.stringCode()),
std::pair("euler", euler.str()));
}
if (! anon)
writeXMLTreeData(out, format, refs);
writeXMLFooter(out, "filterprop", format);
}
} // namespace regina
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