From a7842df438eda518325138b2207c9a898171ba47 Mon Sep 17 00:00:00 2001
From: Lars-Dominik Braun <lars@6xq.net>
Date: Mon, 30 Mar 2015 20:49:52 +0200
Subject: Drop rotation center

Equal to camera center anyway
---
 flam3.h         | 1 -
 interpolation.c | 2 --
 main.c          | 2 --
 parser.c        | 2 --
 rect.c          | 2 +-
 5 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/flam3.h b/flam3.h
index 207b920..46286a4 100644
--- a/flam3.h
+++ b/flam3.h
@@ -438,7 +438,6 @@ typedef struct {
    double highlight_power;
    int  width, height;          /* of the final image */
    double center[2];             /* of camera */
-   double rot_center[2];         /* really the center */
    double rotate;                /* camera */
    double vibrancy;              /* blend between color algs (0=old,1=new) */
    double hue_rotation;          /* applies to cmap, 0-1 */
diff --git a/interpolation.c b/interpolation.c
index 600d1d8..a316116 100644
--- a/interpolation.c
+++ b/interpolation.c
@@ -408,8 +408,6 @@ void flam3_interpolate_n(flam3_genome *result, int ncp,
    INTERI(height);
    INTERP(center[0]);
    INTERP(center[1]);
-   INTERP(rot_center[0]);
-   INTERP(rot_center[1]);
    INTERP(pixels_per_unit);
    INTERP(zoom);
    INTERP(rotate);
diff --git a/main.c b/main.c
index 5637da7..61ed4d9 100644
--- a/main.c
+++ b/main.c
@@ -227,8 +227,6 @@ static void adjust_bounding_box (flam3_genome * const genome, randctx * const rc
 		genome->center[0] = mix0 * bmin[0] + (1-mix0)*bmax[0];
 		genome->center[1] = mix1 * bmin[1] + (1-mix1)*bmax[1];
 	}
-	genome->rot_center[0] = genome->center[0];
-	genome->rot_center[1] = genome->center[1];
 	genome->pixels_per_unit = genome->width / (bmax[0] - bmin[0]);
 }
 
diff --git a/parser.c b/parser.c
index 8f93f4c..cafada0 100644
--- a/parser.c
+++ b/parser.c
@@ -352,8 +352,6 @@ int parse_flame_element(xmlNode *flame_node, flam3_genome *loc_current_cp,
             xmlFree(att_str);
             return(1);
          }
-         cp->rot_center[0] = cp->center[0];
-         cp->rot_center[1] = cp->center[1];
       } else if (!xmlStrcmp(cur_att->name, (const xmlChar *)"scale")) {
          cp->pixels_per_unit = flam3_atof(att_str);
       } else if (!xmlStrcmp(cur_att->name, (const xmlChar *)"rotate")) {
diff --git a/rect.c b/rect.c
index 1dc47b0..7c12b2e 100644
--- a/rect.c
+++ b/rect.c
@@ -263,7 +263,7 @@ static void compute_camera (const flam3_genome * const genome,
 	const double corner1 = genome->center[1] - bucket->dim[1] / ppuy / 2.0;
 
 	double2 rot_matrix[3];
-	rotate_center ((double2) { genome->rot_center[0], genome->rot_center[1] },
+	rotate_center ((double2) { genome->center[0], genome->center[1] },
 			genome->rotate, rot_matrix);
 
 	const double4 from_rect = (double4) { corner0, corner1,
-- 
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