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Add placefile parsing for Triangles and Polygon

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This commit is contained in:
Dan Paulat 2023-08-07 23:52:29 -05:00
parent 4fcfb54890
commit d9a53ea8d7
2 changed files with 172 additions and 2 deletions
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135
wxdata/source/scwx/gr/placefile.cpp
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@ -47,6 +47,7 @@ public:
double& x,
double& y);
void ProcessElement(const std::string& line);
void ProcessElementEnd();
void ProcessLine(const std::string& line);
static void ProcessEscapeCharacters(std::string& s);
@ -64,6 +65,7 @@ public:
std::vector<Object> objectStack_ {};
DrawingStatement currentStatement_ {DrawingStatement::Standard};
std::shared_ptr<DrawItem> currentDrawItem_ {nullptr};
std::vector<PolygonDrawItem::Element> currentPolygonContour_ {};
// References
std::unordered_map<std::size_t, std::shared_ptr<IconFile>> iconFiles_ {};
@ -180,6 +182,8 @@ std::shared_ptr<Placefile> Placefile::Load(const std::string& name,
case DrawingStatement::Polygon:
if (boost::istarts_with(line, "End:"))
{
placefile->p->ProcessElementEnd();
placefile->p->currentStatement_ = DrawingStatement::Standard;
placefile->p->currentDrawItem_ = nullptr;
}
@ -551,7 +555,14 @@ void Placefile::Impl::ProcessLine(const std::string& line)
// End:
currentStatement_ = DrawingStatement::Triangles;
// TODO
std::shared_ptr<TrianglesDrawItem> di =
std::make_shared<TrianglesDrawItem>();
di->threshold_ = threshold_;
di->color_ = color_;
currentDrawItem_ = di;
drawItems_.emplace_back(std::move(di));
}
else if (boost::istarts_with(line, imageKey_))
{
@ -577,7 +588,13 @@ void Placefile::Impl::ProcessLine(const std::string& line)
// End:
currentStatement_ = DrawingStatement::Polygon;
// TODO
std::shared_ptr<PolygonDrawItem> di = std::make_shared<PolygonDrawItem>();
di->threshold_ = threshold_;
di->color_ = color_;
currentDrawItem_ = di;
drawItems_.emplace_back(std::move(di));
}
else
{
@ -609,6 +626,120 @@ void Placefile::Impl::ProcessElement(const std::string& line)
std::static_pointer_cast<LineDrawItem>(currentDrawItem_)
->elements_.emplace_back(std::move(element));
}
else
{
logger_->warn("Line sub-statement malformed: {}", line);
}
}
else if (currentStatement_ == DrawingStatement::Triangles)
{
// Triangles:
// lat, lon [, r, g, b [,a]]
// ...
// End:
std::vector<std::string> tokenList =
util::ParseTokens(line, {",", ",", ",", ",", ",", ","});
TrianglesDrawItem::Element element;
if (tokenList.size() >= 5)
{
element.color_ = ParseColor(tokenList, 2, colorMode_);
}
if (tokenList.size() >= 2)
{
ParseLocation(tokenList[0],
tokenList[1],
element.latitude_,
element.longitude_,
element.x_,
element.y_);
std::static_pointer_cast<TrianglesDrawItem>(currentDrawItem_)
->elements_.emplace_back(std::move(element));
}
else
{
logger_->warn("Triangles sub-statement malformed: {}", line);
}
}
else if (currentStatement_ == DrawingStatement::Polygon)
{
// Polygon:
// lat1, lon1 [, r, g, b [,a]] ; start of the first contour
// ...
// lat1, lon1 ; repeating the first point closes the
// ; contour
//
// lat2, lon2 ; next point starts a new contour
// ...
// lat2, lon2 ; and repeating it ends the contour
// End:
std::vector<std::string> tokenList =
util::ParseTokens(line, {",", ",", ",", ",", ",", ","});
PolygonDrawItem::Element element;
if (tokenList.size() >= 5)
{
element.color_ = ParseColor(tokenList, 2, colorMode_);
}
if (tokenList.size() >= 2)
{
ParseLocation(tokenList[0],
tokenList[1],
element.latitude_,
element.longitude_,
element.x_,
element.y_);
currentPolygonContour_.emplace_back(std::move(element));
if (currentPolygonContour_.size() >= 2)
{
auto& first = currentPolygonContour_.front();
auto& last = currentPolygonContour_.back();
// Repeating the first point closes the contour
if (first.latitude_ == last.latitude_ &&
first.longitude_ == last.longitude_ && //
first.x_ == last.x_ && //
first.y_ == last.y_)
{
auto& contours =
std::static_pointer_cast<PolygonDrawItem>(currentDrawItem_)
->contours_;
auto& newContour = contours.emplace_back(
std::vector<PolygonDrawItem::Element> {});
newContour.swap(currentPolygonContour_);
}
}
}
else
{
logger_->warn("Polygon sub-statement malformed: {}", line);
}
}
}
void Placefile::Impl::ProcessElementEnd()
{
if (currentStatement_ == DrawingStatement::Polygon)
{
// Complete the current contour when ending the Polygon statement
if (!currentPolygonContour_.empty())
{
auto& contours =
std::static_pointer_cast<PolygonDrawItem>(currentDrawItem_)
->contours_;
auto& newContour =
contours.emplace_back(std::vector<PolygonDrawItem::Element> {});
newContour.swap(currentPolygonContour_);
}
}
}