Add GritsVolume for 3D volume rendering

[grits] / src / objects / grits-volume.h

diff --git a/src/objects/grits-volume.h b/src/objects/grits-volume.h
new file mode 100644 (file)
index 0000000..6eb4e83
--- /dev/null
+++ b/src/objects/grits-volume.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2009-2010 Andy Spencer <andy753421@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GRITS_VOLUME_H__
+#define __GRITS_VOLUME_H__
+
+#include <glib.h>
+#include <glib-object.h>
+#include <cairo.h>
+#include "grits-object.h"
+#include "marching.h"
+
+/***************
+ * GritsVolume *
+ ***************/
+#define GRITS_TYPE_VOLUME            (grits_volume_get_type())
+#define GRITS_VOLUME(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),   GRITS_TYPE_VOLUME, GritsVolume))
+#define GRITS_IS_VOLUME(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),   GRITS_TYPE_VOLUME))
+#define GRITS_VOLUME_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST   ((klass), GRITS_TYPE_VOLUME, GritsVolumeClass))
+#define GRITS_IS_VOLUME_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE   ((klass), GRITS_TYPE_VOLUME))
+#define GRITS_VOLUME_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),   GRITS_TYPE_VOLUME, GritsVolumeClass))
+
+typedef enum {
+       GRITS_VOLUME_CARTESIAN,
+       GRITS_VOLUME_SPHERICAL,
+} GritsVolumeProj;
+
+typedef enum {
+       GRITS_VOLUME_SURFACE,
+       GRITS_VOLUME_POINTS,
+} GritsVolumeDisp;
+
+typedef struct _GritsVolume      GritsVolume;
+typedef struct _GritsVolumeClass GritsVolumeClass;
+
+struct _GritsVolume {
+       GritsObject parent_instance;
+
+       /* Instance members */
+       GritsVolumeProj proj; // projection
+       GritsVolumeDisp disp; // display mode
+
+       /* Internal */
+       VolGrid *grid;
+       GList   *tris;
+       gdouble  level;
+       guint8   color[4];
+       gint     update_id;
+};
+
+struct _GritsVolumeClass {
+       GritsObjectClass parent_class;
+};
+
+GType grits_volume_get_type(void);
+
+/* Methods */
+void grits_volume_set_level(GritsVolume *volume, gdouble level);
+
+GritsVolume *grits_volume_new(VolGrid *grid);
+
+#endif