Revision: 38931
http://brlcad.svn.sourceforge.net/brlcad/?rev=38931&view=rev
Author: erikgreenwald
Date: 2010-04-30 20:56:13 +0000 (Fri, 30 Apr 2010)
Log Message:
-----------
allow zooming in and out using right click
Modified Paths:
--------------
isst/trunk/sdl/event.c
isst/trunk/sdl/main.c
Modified: isst/trunk/sdl/event.c
===================================================================
--- isst/trunk/sdl/event.c 2010-04-30 20:39:10 UTC (rev 38930)
+++ isst/trunk/sdl/event.c 2010-04-30 20:56:13 UTC (rev 38931)
@@ -99,6 +99,15 @@
break;
case 4:
/* zoom in/out yrel */
+ {
+ /* if you zoom past the focus point, it flips
+ * direction. up is awlays towards the focus. */
+ vect_t vec;
+ VSUB2(vec, isst->camera.focus.v,
isst->camera.pos.v);
+ VUNITIZE(vec);
+ VSCALE(vec, vec, -0.01 * isst->tie->radius *
e.motion.yrel);
+ VADD2(isst->camera.pos.v, isst->camera.pos.v,
vec);
+ }
break;
}
Modified: isst/trunk/sdl/main.c
===================================================================
--- isst/trunk/sdl/main.c 2010-04-30 20:39:10 UTC (rev 38930)
+++ isst/trunk/sdl/main.c 2010-04-30 20:56:13 UTC (rev 38931)
@@ -65,15 +65,15 @@
{
struct isst_s *isst;
isst = (struct isst_s *)malloc(sizeof(struct isst_s));
+ isst->tie = (struct tie_s *)bu_malloc(sizeof(struct tie_s), "tie");
+ load_g(isst->tie, argv[0], argc-1, argv+1, &(isst->meshes));
TIENET_BUFFER_INIT(isst->buffer_image);
render_camera_init(&isst->camera, bu_avail_cpus());
isst->camera.type = RENDER_CAMERA_PERSPECTIVE;
isst->camera.fov = 25;
- VSETALL(isst->camera.pos.v, 1);
- VSETALL(isst->camera.focus.v, 0);
+ VSETALL(isst->camera.pos.v, isst->tie->radius);
+ VMOVE(isst->camera.focus.v, isst->tie->mid);
render_phong_init(&isst->camera.render, NULL);
- isst->tie = (struct tie_s *)bu_malloc(sizeof(struct tie_s), "tie");
- load_g(isst->tie, argv[0], argc-1, argv+1, &(isst->meshes));
return isst;
}
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