rewrote clustering

1 files changed, 57 insertions, 9 deletions

diff --git a/include/glamac_view.h b/include/glamac_view.h
index 9eec63a..6ca4b9b 100644
--- a/include/glamac_view.h
+++ b/include/glamac_view.h
@@ -20,14 +20,45 @@
 #define LABEL_OFFSET_Y -8     // Vertical offset from glass point (pixels)

 #define LABEL_SIZE_SCALE 1.4f // Scale factor for glass name labels

 

-// Glass clustering for nearly identical glasses

-#define MAX_CLUSTER_SIZE 8

+// Tight clustering parameters

+#define MAX_CLUSTER_SIZE 8    // Maximum glasses per cluster

+#define DEFAULT_TIGHT_CLUSTER_ND_THRESHOLD 0.0005f // Default nd difference threshold

+#define DEFAULT_TIGHT_CLUSTER_VD_THRESHOLD 0.15f   // Default vd difference threshold

+

+// Loose clustering parameters (zoom-dependent)

+#define DEFAULT_LOOSE_CLUSTER_ND_THRESHOLD 0.3f  // Default nd base threshold

+#define DEFAULT_LOOSE_CLUSTER_VD_THRESHOLD 0.55f    // Default vd base threshold

+#define DEFAULT_LOOSE_CLUSTER_ND_FRACTION 4.9f   // Default nd fraction of visible range

+#define DEFAULT_LOOSE_CLUSTER_VD_FRACTION 0.9f   // Default vd fraction of visible range

+

+// Global tight cluster thresholds (adjustable parameters)

+extern f32 g_tight_cluster_nd_threshold;

+extern f32 g_tight_cluster_vd_threshold;

+

+// Global loose cluster parameters (adjustable parameters)

+extern f32 g_loose_cluster_nd_threshold;  // Base threshold

+extern f32 g_loose_cluster_vd_threshold;  // Base threshold  

+extern f32 g_loose_cluster_nd_fraction;   // Zoom scaling fraction

+extern f32 g_loose_cluster_vd_fraction;   // Zoom scaling fraction

+

+// Tight cluster structure

 typedef struct {

     i32 glassIndices[MAX_CLUSTER_SIZE]; // Indices of glasses in this cluster

     i32 count;                          // Number of glasses in cluster

-    f32 avgAbbeNumber;                  // Average position for rendering

+    i32 representativeIndex;            // Index of glass with shortest name

+    f32 avgAbbeNumber;                  // Average position for reference

     f32 avgRefractiveIndex;

-} GlassCluster;

+} TightCluster;

+

+// Loose cluster structure (zoom-dependent)

+typedef struct {

+    i32 glassIndices[MAX_CLUSTER_SIZE]; // Indices of glasses in this cluster

+    i32 count;                          // Number of glasses in cluster

+    i32 representativeIndex;            // Index of glass with shortest name

+    f32 avgAbbeNumber;                  // Average position for reference

+    f32 avgRefractiveIndex;

+} LooseCluster;

+

 

 // State for zooming and panning

 typedef struct {

@@ -44,7 +75,15 @@ typedef struct {
     b32 gKeyPressed;        // Flag to track if 'g' was pressed

     u32 gKeyTime;           // Time when 'g' was pressed for sequence timing

     i32 selectedGlass;      // Index of selected glass (-1 if none)

-    i32 selectedCluster;    // Index of selected cluster (-1 if none)

+    i32 selectedCluster;    // Index of selected tight cluster (-1 if none)

+    

+    // Tight cluster data (per catalog)

+    TightCluster* tightClusters;  // Array of tight clusters for current catalog

+    i32 tightClusterCount;        // Number of tight clusters

+    

+    // Loose cluster data (per catalog, zoom-dependent)

+    LooseCluster* looseClusters;  // Array of loose clusters for current catalog

+    i32 looseClusterCount;        // Number of loose clusters

     

     // Label recalculation tracking

     f32 lastZoomLevel;      // Last zoom level for which labels were calculated

@@ -119,9 +158,18 @@ void toggle_fullscreen(SDL_Window* window);
 // Reset view to default

 void reset_view(ViewState* view);

 

-// Glass clustering functions

-GlassCluster* create_glass_clusters(i32* clusterCount);

-void free_glass_clusters(GlassCluster* clusters);

-i32 find_cluster_at_position(GlassCluster* clusters, i32 clusterCount, i32 x, i32 y, const ViewState* view);

+// Tight clustering functions

+void create_tight_clusters(ViewState* view);

+void free_tight_clusters(ViewState* view);

+i32 find_tight_cluster_for_glass(i32 glassIndex, const ViewState* view);

+

+// Loose clustering functions (zoom-dependent)

+void create_loose_clusters(ViewState* view);

+void free_loose_clusters(ViewState* view);

+i32 find_loose_cluster_for_glass(i32 glassIndex, const ViewState* view);

+

+// Combined clustering logic

+b32 should_show_glass_label(i32 glassIndex, const ViewState* view);

+

 

 #endif /* GLAMAC_VIEW_H */