# HG changeset patch
# User Eleni Maria Stea <elene.mst@gmail.com>
# Date 1395698832 -7200
# Node ID 21bc62bb3e148e5fd193b86721e13ef8f93afd6a
# Parent  09896653017ec953c2a8ab7df26f27bdf627d27a
added spinner

diff -r 09896653017e -r 21bc62bb3e14 src/main.cc
--- a/src/main.cc	Mon Mar 24 23:57:14 2014 +0200
+++ b/src/main.cc	Tue Mar 25 00:07:12 2014 +0200
@@ -38,6 +38,7 @@
 static Volume *vol;
 static Mesh *mesh;
 static float cur_z, thres = 0.5, thres2 = 1.0;
+static float zeta;
 
 static int use_orig_vol_res = 1;
 static int vol_res[3]; // volume sampling resolution x/y/z
@@ -168,13 +169,17 @@
 		res_spin[i]->disable();
 	}
 
+	GLUI_Panel *preview_panel = ui->add_panel("volume preview");
+
+	GLUI_Spinner *preview_spin = ui->add_spinner_to_panel(preview_panel, "slice z", GLUI_SPINNER_FLOAT, &zeta, 0);
+	preview_spin->set_float_limits(0, 1);
+
 	return ui;
 }
 
 static void volume_preview ()
 {
 	float aspect = win_xsz / win_ysz;
-	float z = 0.0;
 
 	glDisable(GL_LIGHTING);
 
@@ -191,10 +196,10 @@
 	glEnable(GL_TEXTURE_3D);
 	glBegin(GL_QUADS);
 	glColor3f(1.0, 0.0, 0.0);
-	glTexCoord3f(0, 0, z); glVertex3f(-1.0, 1.0, 0.0);
-	glTexCoord3f(0, 1, z); glVertex3f(-1.0, 0.5, 0.0);
-	glTexCoord3f(1, 1, z); glVertex3f(-0.5, 0.5, 0.0);
-	glTexCoord3f(1, 0, z); glVertex3f(-0.5, 1.0, 0.0);
+	glTexCoord3f(0, 0, zeta); glVertex3f(-1.0, 1.0, 0.0);
+	glTexCoord3f(0, 1, zeta); glVertex3f(-1.0, 0.5, 0.0);
+	glTexCoord3f(1, 1, zeta); glVertex3f(-0.5, 0.5, 0.0);
+	glTexCoord3f(1, 0, zeta); glVertex3f(-0.5, 1.0, 0.0);
 	glEnd();
 	glDisable(GL_TEXTURE_3D);