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authorThomas White <taw@physics.org>2014-08-13 13:25:15 +0200
committerThomas White <taw@physics.org>2014-08-13 13:25:31 +0200
commit5625ca80961b26aa8be3962b500febccec24fdf5 (patch)
tree826eabde0dc81734b6adcbc22c9c7592dd7b3c5f /src
parentf210d6eff87a8ab5260a6cedd2adda518c7e9de8 (diff)
hdfsee/render_hkl: Show negative values on colour scale
Diffstat (limited to 'src')
-rw-r--r--src/hdfsee-render.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/src/hdfsee-render.c b/src/hdfsee-render.c
index c78aa677..abbb2ccd 100644
--- a/src/hdfsee-render.c
+++ b/src/hdfsee-render.c
@@ -3,11 +3,11 @@
*
* Rendering bits for hdfsee
*
- * Copyright © 2012 Deutsches Elektronen-Synchrotron DESY,
- * a research centre of the Helmholtz Association.
+ * Copyright © 2012-2014 Deutsches Elektronen-Synchrotron DESY,
+ * a research centre of the Helmholtz Association.
*
* Authors:
- * 2011-2012 Thomas White <taw@physics.org>
+ * 2011-2012,2014 Thomas White <taw@physics.org>
*
* This file is part of CrystFEL.
*
@@ -253,7 +253,7 @@ GdkPixbuf *render_get_colour_scale(size_t w, size_t h, int scale)
double r, g, b;
int val;
- val = y;
+ val = y-(h/6);
render_scale(val, max, scale, &r, &g, &b);
@@ -268,6 +268,13 @@ GdkPixbuf *render_get_colour_scale(size_t w, size_t h, int scale)
}
+ y = h/6;
+ for ( x=1; x<w; x++ ) {
+ data[3*( x+w*(h-1-y) )+0] = 255;
+ data[3*( x+w*(h-1-y) )+1] = 255;
+ data[3*( x+w*(h-1-y) )+2] = 255;
+ }
+
return gdk_pixbuf_new_from_data(data, GDK_COLORSPACE_RGB, FALSE, 8,
w, h, w*3, render_free_data, NULL);
}