From 2626c8c86b73ee381b36be6065f9027969078455 Mon Sep 17 00:00:00 2001
From: maj00r <maj00r@host>
Date: Thu, 8 Oct 2026 01:48:41 +0200
Subject: [PATCH] fix(editor): platform edge by the points of a switch keeps
 the setback of the diverging path, the sample at the points counted with the
 line leading into the switch

---
 application/editormodeselftest.cpp | 15 +++++++++++++++
 world/Sweep.cpp                    |  4 ++--
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/application/editormodeselftest.cpp b/application/editormodeselftest.cpp
index c25d6726..b84287c2 100644
--- a/application/editormodeselftest.cpp
+++ b/application/editormodeselftest.cpp
@@ -335,6 +335,21 @@ void editor_mode::selftest_step()
 			}
 			WriteLog("SELFTEST conecheck " + name + ":" + text);
 		}
+		else if (command == "frames")
+		{
+			std::string name;
+			double from{0.0}, to{0.0}, step{0.1};
+			words >> name >> from >> to >> step;
+			auto *sweep{simulation::Sweeps.find(name)};
+			if (sweep == nullptr)
+				continue;
+			auto const side{sweep->definition().lateral >= 0.0 ? 1 : 0};
+			for (double station = from; station <= to + 1e-9; station += step)
+			{
+				auto const at{sweep->frame_at(station)};
+				WriteLog(format("SELFTEST frame %s %.2f: %.3f %.3f %.3f widening %.4f cant %.4f setback %.4f", name.c_str(), station, at.position.x, at.position.y, at.position.z, at.widening[side], at.cant[side], sweep->setback(at)));
+			}
+		}
 		else if (command == "fouling")
 		{
 			std::map<std::string, std::string> values;
diff --git a/world/Sweep.cpp b/world/Sweep.cpp
index 42dd07c0..cac36036 100644
--- a/world/Sweep.cpp
+++ b/world/Sweep.cpp
@@ -611,7 +611,7 @@ void sweep_node::beside_switches(std::vector<sample> &Samples)
 			if (heading > 0.0)
 			{
 				for (auto const &sample : Samples)
-					if (sample.station >= s0 - outer_reach && sample.station < s0 - 1e-3)
+					if (sample.station >= s0 - outer_reach && sample.station <= s0 + 1e-3)
 					{
 						station = sample.station;
 						chain.push_back(sample);
@@ -650,7 +650,7 @@ void sweep_node::beside_switches(std::vector<sample> &Samples)
 						nearest = &point;
 					}
 				}
-				if (nearest == nullptr || closest > sample_spacing)
+				if (nearest == nullptr || closest > 1.5 * sample_spacing)
 					continue;
 				auto const offset{sign * glm::dot(glm::dvec3{nearest->position.x - here.position.x, 0.0, nearest->position.z - here.position.z}, glm::dvec3{-forward.z, 0.0, forward.x})};
 				if (offset > 0.05)