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miSim/@miSim/plotFromSimHist.m

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function obj = plotFromSimHist(obj, initsPath, histPath)
% PLOTFROMSIMHIST Reconstruct all three miSim plots from saved matfiles.
%
% Loads the simInits matfile to rebuild domain/obstacle/objective/agent
% geometry, then loads the simHist matfile to restore the full time-history
% arrays. Produces the same three figures that a live run would generate:
% 1. Sensor performance vs. time (obj.fPerf)
% 2. Barrier function values vs. time (obj.hf)
% 3. 3-D spatial figure with domain, obstacles, objective, agent trails,
% and final-timestep communications topology (obj.f)
%
% Usage:
% sim = miSim;
% sim = sim.plotFromSimHist( ...
% 'sandbox/2025_01_01_12_00_00_miSimHist.mat', ...
% 'sandbox/2025_01_01_12_00_00_miSimInits.mat');
arguments (Input)
obj (1, 1) {mustBeA(obj, 'miSim')};
initsPath (1, 1) string;
histPath (1, 1) string;
end
arguments (Output)
obj (1, 1) {mustBeA(obj, 'miSim')};
end
% ---- Reconstruct geometry from inits (plots disabled) --------------------
obj = obj.initializeFromInits(initsPath);
nAgents = size(obj.agents, 1);
% ---- Load history data ---------------------------------------------------
data = load(histPath);
out = data.out;
nHistTimesteps = size(out.barriers, 2);
nPosTimesteps = size(out.agent(1).pos, 1);
% ---- Populate barrier history --------------------------------------------
% out.barriers may be narrower than the pre-allocated obj.barriers if the
% run was shorter than maxIter; fill what we have and leave the rest NaN.
obj.barriers(:, 1:nHistTimesteps) = out.barriers;
% ---- Populate position history and advance agents to final positions -----
for ii = 1:nAgents
agentPos = out.agent(ii).pos; % (nPosTimesteps × 3)
nPts = size(agentPos, 1);
obj.posHist(ii, 1:nPts, :) = reshape(agentPos, [1, nPts, 3]);
obj.agents{ii}.pos = agentPos(end, :); % show final position in spatial plot
end
% ---- Set final constraint topology ---------------------------------------
obj.constraintAdjacencyMatrix = out.constraintAdjacency(:, :, end);
% ---- Recompute partitioning at final agent positions ---------------------
obj.partitioning = obj.agents{1}.partition(obj.agents, obj.domain.objective);
% ---- Enable plotting and produce spatial + barrier figures ---------------
obj.makePlots = true;
obj = obj.plot();
% ---- Performance figure (built directly — live machinery is incremental) -
nPerfTimesteps = numel(out.perf);
times = (0:nPerfTimesteps - 1) * obj.timestep;
normFactor = 1 / max(out.perf);
obj.fPerf = figure;
ax = axes(obj.fPerf);
hold(ax, "on");
title(ax, "Sensor Performance");
xlabel(ax, "Time (s)");
ylabel(ax, "Sensor Performance");
grid(ax, "on");
legendStrings = strings(nAgents + 1, 1);
legendStrings(1) = "Total";
plot(ax, times, out.perf * normFactor, "LineWidth", 1.5);
for ii = 1:nAgents
agentPerf = out.agent(ii).perf;
agentTimes = times(1:numel(agentPerf));
plot(ax, agentTimes, agentPerf * normFactor);
if isfield(out.agent(ii), 'label')
legendStrings(ii + 1) = string(out.agent(ii).label);
else
legendStrings(ii + 1) = sprintf("Agent %d", ii);
end
end
legend(ax, legendStrings, "Location", "northwest");
hold(ax, "off");
% Bring spatial figure to the front
figure(obj.f);
end