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authorPaul Duncan <pabs@pablotron.org>2019-02-05 01:26:15 -0500
committerPaul Duncan <pabs@pablotron.org>2019-02-05 01:26:15 -0500
commit2947bcefdfc971f9729003a51cfe4d65f33b19db (patch)
tree8f85f80649ad2756295f2e839938754c9f5a8643 /src
parente1d09044f2208cda7e7667cbcff978008997ed48 (diff)
downloadkmeans-2947bcefdfc971f9729003a51cfe4d65f33b19db.tar.bz2
kmeans-2947bcefdfc971f9729003a51cfe4d65f33b19db.zip
add comments, remove cruft
Diffstat (limited to 'src')
-rw-r--r--src/main.c33
1 files changed, 11 insertions, 22 deletions
diff --git a/src/main.c b/src/main.c
index 20ce9af..8bae71c 100644
--- a/src/main.c
+++ b/src/main.c
@@ -12,14 +12,21 @@
#include "util.h"
#include "km.h"
+// maximum number of clusters to test
#define MAX_CLUSTERS 10
+
+// number of tests to run on each cluster size
#define NUM_TESTS 100
#define MAX_BEST 10
+// output image size
#define IM_WIDTH 128
#define IM_HEIGHT 128
#define IM_STRIDE (3 * IM_WIDTH)
+// static output image data buffer
+static uint8_t im_data[3 * IM_WIDTH * IM_HEIGHT];
+
typedef struct {
float score;
km_set_t set;
@@ -75,22 +82,6 @@ ctx_best_sort(
);
}
-/*
- * static void
- * ctx_best_walk(
- * const ctx_t * const ctx,
- * void (*on_best)(const km_set_t * const, const size_t, const float, void *),
- * void * const cb_data
- * ) {
- * if (on_best) {
- * // walk best sets and emit each one
- * for (size_t i = 0; i < ctx_get_max_best(ctx); i++) {
- * on_best(&(ctx->best[i].set), i, ctx->best[i].score, cb_data);
- * }
- * }
- * }
- */
-
static bool
load_on_shape(
const km_shape_t * const shape,
@@ -222,9 +213,6 @@ FIND_CBS = {
.on_best = find_on_best,
};
-// static image data buffer
-static uint8_t im_data[3 * IM_WIDTH * IM_HEIGHT];
-
static void
ctx_save_png(
const ctx_t * const ctx,
@@ -266,7 +254,7 @@ static const char USAGE_FORMAT[] =
"Arguments:\n"
"* init: Cluster init method (one of \"rand\" or \"set\").\n"
"* data_path: Path to input data file.\n"
- "* png_path: Path to output file (optional).\n"
+ "* png_path: Path to output PNG (optional).\n"
"";
int main(int argc, char *argv[]) {
@@ -281,8 +269,9 @@ int main(int argc, char *argv[]) {
const char * const data_path = argv[2];
const char * const png_path = (argc > 3) ? argv[3] : NULL;
- // init random seed
+ // init rng
srand(getpid());
+ const int rand_seed = rand();
// init context
ctx_t ctx;
@@ -290,7 +279,7 @@ int main(int argc, char *argv[]) {
ctx.init_type = km_init_get_type(init_type_name);
// init ctx rng
- km_rand_init_erand48(&(ctx.rs), rand());
+ km_rand_init_erand48(&(ctx.rs), rand_seed);
// init data set
km_set_t set;