X-Git-Url: http://pileus.org/git/?p=grits;a=blobdiff_plain;f=src%2Fgrits-opengl.c;h=0b4100a8f48672401d471895b26df4649b40f848;hp=3d7b7dd12a718ddf6bac02c83509e2c5df706f8e;hb=74a55fb8afe07234c705513d324c6cc373e18f8a;hpb=64cd64653195ced67f25f6b8560953f420c0746c

diff --git a/src/grits-opengl.c b/src/grits-opengl.c
index 3d7b7dd..0b4100a 100644
--- a/src/grits-opengl.c
+++ b/src/grits-opengl.c
@@ -67,14 +67,14 @@ static void _set_visuals(GritsOpenGL *opengl)
 
 	double width  = GTK_WIDGET(opengl)->allocation.width;
 	double height = GTK_WIDGET(opengl)->allocation.height;
-	double ang    = atan(height/FOV_DIST);
+	double ang    = atan((height/2)/FOV_DIST)*2;
 	double atmos  = 100000;
 	double near   = MAX(elev*0.75 - atmos, 50); // View 100km of atmosphere
 	double far    = elev + 2*EARTH_R + atmos;   // on both sides of the earth
 
 	grits_viewer_get_location(GRITS_VIEWER(opengl), &lat, &lon, &elev);
 	glViewport(0, 0, width, height);
-	gluPerspective(rad2deg(ang)*2, width/height, near, far);
+	gluPerspective(rad2deg(ang), width/height, near, far);
 
 	/* Setup camera and lighting */
 	glMatrixMode(GL_MODELVIEW);
@@ -469,6 +469,8 @@ static void grits_opengl_unproject(GritsViewer *_opengl,
 		gdouble *lat, gdouble *lon, gdouble *elev)
 {
 	GritsOpenGL *opengl = GRITS_OPENGL(_opengl);
+	if (!opengl->sphere->view)
+		return;
 	gdouble x, y, z;
 	if (pz < 0) {
 		gfloat tmp = 0;