egutierrez
0bdf35a461
Funciones C++/ImGui para dashboards (grid, panel, docking, sidebar, tabs), visualizaciones (candlestick, gauge, histogram, pie, sparkline, heatmap, scatter, line, bar, surface3d, kpi, table), grafos (force layout, renderer, viewport, spatial hash, types) y utilidades (time series buffer, tracy zones, memory/fps overlay, plot theme). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
28 lines
1.2 KiB
C
28 lines
1.2 KiB
C
#pragma once
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struct GraphData; // forward declare
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struct ForceLayoutConfig {
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float repulsion = 500.0f; // repulsion strength between all nodes
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float attraction = 0.01f; // spring constant for edges
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float damping = 0.85f; // velocity decay per step
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float min_distance = 1.0f; // minimum distance (avoid division by zero)
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float theta = 0.5f; // Barnes-Hut threshold (0 = exact, 1 = fast)
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float gravity = 0.1f; // pull toward center (prevents drift)
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float max_velocity = 50.0f; // cap velocity per axis
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int iterations = 1; // steps per call
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};
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// Perform one (or more) steps of force-directed layout.
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// Modifies node positions (x, y) and velocities (vx, vy) in-place.
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// Returns the total kinetic energy (sum of |v|^2). When energy < threshold,
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// layout has converged.
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float graph_force_layout_step(GraphData& graph, const ForceLayoutConfig& config = {});
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// Reset: randomize positions within [-spread, spread], zero velocities.
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void graph_force_layout_reset(GraphData& graph, float spread = 200.0f);
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// Preset layouts (non-iterative, instant positioning)
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void graph_layout_circular(GraphData& graph, float radius = 100.0f);
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void graph_layout_grid(GraphData& graph, float spacing = 20.0f);
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