From: dooglus <dooglus@1f10aa63-cdf2-0310-b900-c93c546f37ac>
Date: Sun, 2 Dec 2007 00:53:03 +0000 (+0000)
Subject: Don't wrap the angle in a radial composite conversation from -180 to 180 degrees... 
X-Git-Url: https://git.pterodactylus.net/?a=commitdiff_plain;h=4742c682ea173332f2d28428cfd7d40e3693b652;p=synfig.git

Don't wrap the angle in a radial composite conversation from -180 to 180 degrees when manipulating it using a duck.  Instead, modify the previous value by something between -180 and 180 degrees.


git-svn-id: http://svn.voria.com/code@1171 1f10aa63-cdf2-0310-b900-c93c546f37ac
---

diff --git a/synfig-studio/trunk/src/synfigapp/actions/valuedescset.cpp b/synfig-studio/trunk/src/synfigapp/actions/valuedescset.cpp
index 4ed9286..ccbd1ae 100644
--- a/synfig-studio/trunk/src/synfigapp/actions/valuedescset.cpp
+++ b/synfig-studio/trunk/src/synfigapp/actions/valuedescset.cpp
@@ -334,9 +334,14 @@ Action::ValueDescSet::prepare()
 		{
 		case ValueBase::TYPE_VECTOR:
 		{
+			Angle old_angle = (*(ValueNode_RadialComposite::Handle::cast_dynamic(
+									 value_desc.get_value_node())->get_link_vfunc(1)))(time).get(Angle());
 			Vector vect(value.get(Vector()));
 			components[0]=vect.mag();
-			components[1]=Angle(Angle::tan(vect[1],vect[0]));
+			Angle change = Angle(Angle::tan(vect[1],vect[0])) - old_angle;
+			while (change < Angle::deg(-180)) change += Angle::deg(360);
+			while (change > Angle::deg(180)) change -= Angle::deg(360);
+			components[1]=old_angle + change;
 			n_components=2;
 		}
 			break;