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Code Issues 150 Wiki Activity

feat(track): the blades of a switch whose frog is cut from the rails are made from its geometry: the tip is where the gauge lines of both paths are 3 mm apart, the head reaches its full width where they are a head plus 0.5 mm apart, and the heel is the shortest blade whose open flangeway stays at least 58 mm with a throw of 160 mm bent like a cantilever from the heel, or straight when that does not fit as in slips; the blade is the whole rail profile lofted from the tip to the heel, cut along the head of the stock rail, with the head lowered by the drop of the blade half of the profile file towards the tip and back to the top at a 50 mm head, and thrown with knots every 0.5 m so the vertex count does not change between the positions; the stock rails get stations every 0.5 m along the blades so their curve follows the blade, the fixed rail behind the heel starts at the heel, the old blades take their segment count per path, and the self-test command blade logs the tip, heel, drop, flangeway and the gauge lines against x^2/2R and faults on a short flangeway, a heel past the throat or a change of the vertex count

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maj00r
2026-10-14 03:32:41 +02:00
parent df2bbae449
commit 20c4b6542e
7 changed files with 256 additions and 11 deletions
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6
world/Segment.h
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@@ -75,6 +75,7 @@ class TSegment
std::vector<std::shared_ptr<TSegment>> m_pieces; // parts of a path made of several curves, parametrized by distance
std::vector<double> m_starts; // distance from Point1 to the start of each part
std::optional<std::pair<glm::dvec3, glm::dvec3>> m_joints[ 2 ];
double m_dense { 0.0 };
glm::dvec3 GetFirstDerivative(double const fTime) const;
double RombergIntegral(double const fA, double const fB) const;
@@ -156,13 +157,16 @@ public:
RenderLoft( gfx::vertex_array &Output, glm::dvec3 const &Origin, gfx::vertex_array const &ShapePoints, bool const Transition, double fTextureLength, double Texturescale = 1.0, int iSkip = 0, int iEnd = 0, std::pair<float, float> fOffsetX = {0.f, 0.f}, glm::vec3 **p = nullptr, bool bRender = true );
// the profile lofted from distance From to To, moved outwards by Offsets and cut on its outer side to Extents beyond the gauge line, both as (distance, value) knots
bool
RenderLoftSpan( gfx::vertex_array &Output, glm::dvec3 const &Origin, gfx::vertex_array const &ShapePoints, int const Side, float const Halfwidth, double const fTextureLength, double const From, double const To, std::vector<glm::dvec2> const &Offsets, std::vector<glm::dvec2> const &Extents = {}, float const Lift = 0.f, std::vector<glm::dvec2> const &Inner = {}, gfx::userdata_array *Userdata = nullptr, std::vector<glm::dvec2> const &Ramp = {}, double const Rampwidth = 0.0, bool const Walls = false, float const Wallu = -1.f, glm::dvec2 const &Bends = glm::dvec2 { 0.0 } ) const;
RenderLoftSpan( gfx::vertex_array &Output, glm::dvec3 const &Origin, gfx::vertex_array const &ShapePoints, int const Side, float const Halfwidth, double const fTextureLength, double const From, double const To, std::vector<glm::dvec2> const &Offsets, std::vector<glm::dvec2> const &Extents = {}, float const Lift = 0.f, std::vector<glm::dvec2> const &Inner = {}, gfx::userdata_array *Userdata = nullptr, std::vector<glm::dvec2> const &Ramp = {}, double const Rampwidth = 0.0, bool const Walls = false, float const Wallu = -1.f, glm::dvec2 const &Bends = glm::dvec2 { 0.0 }, std::vector<glm::dvec2> const &Drops = {}, glm::dvec2 const &Head = glm::dvec2 { 0.0 } ) const;
// point of the path and the unit vector across it towards the right rail profile, at a distance from Point1
void
plan_frame( double const Distance, glm::dvec3 &Point, glm::dvec3 &Across ) const;
void
set_joint( int const End, std::optional<std::pair<glm::dvec3, glm::dvec3>> const &Joint ) {
m_joints[ End ] = Joint; }
void
set_dense( double const Distance ) {
m_dense = Distance; }
/*
void
Render();