diff options
Diffstat (limited to 'src/GipfelWidget.cxx')
| -rw-r--r-- | src/GipfelWidget.cxx | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/src/GipfelWidget.cxx b/src/GipfelWidget.cxx index eb40590..e88c0cb 100644 --- a/src/GipfelWidget.cxx +++ b/src/GipfelWidget.cxx @@ -31,6 +31,7 @@ #define MAX(A,B) ((A)>(B)?(A):(B)) +#define MIN(A,B) ((A)<(B)?(A):(B)) static double pi_d, deg2rad; @@ -671,6 +672,8 @@ int GipfelWidget::get_pixel(GipfelWidget::sample_mode_t m, double a_alph, double a_nick, uchar *r, uchar *g, uchar *b) { double px, py; + uchar r_tmp, g_tmp, b_tmp; + int ret; if (img == NULL) { return 1; @@ -681,12 +684,36 @@ GipfelWidget::get_pixel(GipfelWidget::sample_mode_t m, } if (m == GipfelWidget::BILINEAR) { - return get_pixel_bilinear(img, px + ((double) img->w()) / 2.0, + ret = get_pixel_bilinear(img, px + ((double) img->w()) / 2.0, py + ((double) img->h()) / 2.0, r, g, b); } else { - return get_pixel_nearest(img, px + ((double) img->w()) / 2.0, + ret = get_pixel_nearest(img, px + ((double) img->w()) / 2.0, py + ((double) img->h()) / 2.0, r, g, b); } + +#if 0 + if (ret == 0) { +fprintf(stderr, "===> %d\n", ret); + double angle = atan(pow(pow(tan(a_alph - pan->parms.a_center), 2.0) + + pow(tan(a_nick - pan->parms.a_nick), 2.0), 0.5)); + double devign = 1.0 / pow(cos(angle), 1.5); + fprintf(stderr, "===> %lf\n", devign); + + *r = (uchar) MIN(rint((double) r_tmp * devign), 255); + *g = (uchar) MIN(rint((double) g_tmp * devign), 255); + *b = (uchar) MIN(rint((double) b_tmp * devign), 255); + } +#endif + + return ret; +} + +double +GipfelWidget::get_angle_off(double a_alph, double a_nick) { + double angle = atan(pow(pow(tan(a_alph - pan->parms.a_center), 2.0) + + pow(tan(a_nick - pan->parms.a_nick), 2.0), 0.5)); + + return angle; } int |