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Code Issues 157 Wiki Activity

fix(editor): the track shown while it's laid over the ground no longer holds up the frames: its grade line is fitted on a thread of its own, the line fitted a moment ago stretched over the track meanwhile, and the click takes the line fitted for the same ground instead of fitting it again; the terrain follows the tracks once the laying ends, not after each click of a chain

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Fitting the grade line took 3 ms for 250 m of track, 30 ms for 1 km, 65 ms for 2 km and 200 ms for 4 km, and the preview of the lay tool and of the drag from a free end fitted it every frame, twice for the drag; on the terrain model the preview of some 800 m took 10 to 17 ms a frame, the cursor standing or not. Now the frame waits under 1.5 ms for 4 km. The formations of the tracks led into the terrain went through every chunk under them 0.3 s after each click, some 50 ms, while the cursor went on to the next point; they wait for the laying to end. The tracks laid and the terrain are the same as before.

Selftests: perf logs the longest frame and those over 33 ms, fittime the time of the fit by length, terrainhash a hash of the chunks in memory.
This commit is contained in:
maj00r
2026-10-24 18:00:21 +02:00
parent e35487f767
commit e322947300
12 changed files with 354 additions and 43 deletions
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4
application/editormodenmt.cpp
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@@ -691,6 +691,10 @@ void editor_mode::nmt_follow_tracks()
return;
if (state.stage != nmt_state::automatic::idle || state.fitting || ImGui::GetTime() - state.changed_time < 0.3 || ImGui::IsMouseDown(ImGuiMouseButton_Left) || ImGui::IsMouseDown(ImGuiMouseButton_Right))
return;
// laying on, from the end of the track laid or dragged from a free end, the terrain waits for the laying to end: shaping it
// goes through every chunk under the tracks, a stall each click
if ((m_lay.active && false == m_lay.points.empty()) || m_extend.active)
return;
if (false == m_streamer.active())
{
state.changed.clear();