From a4ee21d5d7a7e1b98acf2e21dc67220561dd11c8 Mon Sep 17 00:00:00 2001
From: nicopietroni <nico.pietroni@isti.cnr.it>
Date: Mon, 3 Sep 2012 15:58:38 +0000
Subject: [PATCH] added GLDrawSeams function

---
 wrap/gl/gl_field.h | 68 ++++++++++++++++++++++++++++++++++++----------
 1 file changed, 53 insertions(+), 15 deletions(-)

diff --git a/wrap/gl/gl_field.h b/wrap/gl/gl_field.h
index a5fad6e9..2cb5b586 100644
--- a/wrap/gl/gl_field.h
+++ b/wrap/gl/gl_field.h
@@ -4,25 +4,34 @@ class GLField
 {
 	typedef typename MeshType::FaceType FaceType;
 	typedef typename MeshType::VertexType VertexType;
+    typedef typename MeshType::CoordType CoordType;
 	typedef typename MeshType::ScalarType ScalarType;
 	
 	static void GLDrawField(CoordType dir[4],
 							CoordType center,
 							ScalarType &size)
 	{
-		glLineWidth(1);
-		vcg::Color4b c;
-		vcg::glColor(vcg::Color4b(0,0,0,255));
+
+        glLineWidth(3);
+        vcg::glColor(vcg::Color4b(0,0,255,255));
+        glBegin(GL_LINES);
+            glVertex(center);
+            glVertex(center+dir[0]*size);
+        glEnd();
+
+        glLineWidth(1);
+        vcg::glColor(vcg::Color4b(0,0,0,255));
 
 		glBegin(GL_LINES);
-		for (int i=0;i<4;i++)
-		{
-			glVertex(center);
-			glVertex(center+dir[i]*size);
+        for (int i=1;i<4;i++)
+		{            
+            glVertex(center);
+            glVertex(center+dir[i]*size);
 		}
 		glEnd();
 	}
 
+
 	///draw the cross field of a given face
 	static void GLDrawFaceField(const MeshType &mesh,
 							const FaceType &f,
@@ -35,6 +44,21 @@ class GLField
 		GLDrawField(dir,center,size);
 	}
 	
+    static void GLDrawFaceSeams(const FaceType &f)
+    {
+        glLineWidth(3);
+
+        glBegin(GL_LINES);
+        for (int i=0;i<3;i++)
+        {
+            if (!f.IsSeam(i))continue;
+
+            glVertex(f.V0(i)->P());
+            glVertex(f.V1(i)->P());
+        }
+        glEnd();
+    }
+
 	static void GLDrawVertField(const MeshType &mesh,
 								const VertexType &v,
 								ScalarType &size)
@@ -55,7 +79,7 @@ public:
 		glEnable(GL_COLOR_MATERIAL);
 		glDisable(GL_LIGHTING);
 		glDepthRange(0,0.999);
-		MyScalarType size=10;
+        ScalarType size=10;
 		glPointSize(size);
 		glBegin(GL_POINTS);
 		for (int i=0;i<mesh.vert.size();i++)
@@ -86,9 +110,8 @@ public:
 		glPushAttrib(GL_ALL_ATTRIB_BITS);
 		glEnable(GL_COLOR_MATERIAL);
 		glDisable(GL_LIGHTING);
-		MyScalarType size=mesh.bbox.Diag()/100.0;
-		vcg::Color4b c=vcg::Color4b(255,0,0,255);
-		for (int i=0;i<mesh.face.size();i++)
+        ScalarType size=mesh.bbox.Diag()/400.0;
+        for (int i=0;i<mesh.face.size();i++)
 		{
 			if (mesh.face[i].IsD())continue;
 			//if (!mesh.face[i].leading)continue;
@@ -102,9 +125,8 @@ public:
 		glPushAttrib(GL_ALL_ATTRIB_BITS);
 		glEnable(GL_COLOR_MATERIAL);
 		glDisable(GL_LIGHTING);
-		MyScalarType size=mesh.bbox.Diag()/100.0;
-		vcg::Color4b c=vcg::Color4b(255,0,0,255);
-		for (int i=0;i<mesh.vert.size();i++)
+        ScalarType size=mesh.bbox.Diag()/100.0;
+        for (int i=0;i<mesh.vert.size();i++)
 		{
 			if (mesh.vert[i].IsD())continue;
 			//if (!mesh.face[i].leading)continue;
@@ -112,5 +134,21 @@ public:
 		}
 		glPopAttrib();
 	}
+
+    static void GLDrawSeams(const MeshType &mesh)
+    {
+        glPushAttrib(GL_ALL_ATTRIB_BITS);
+        glEnable(GL_COLOR_MATERIAL);
+        glDisable(GL_LIGHTING);
+        vcg::glColor(vcg::Color4b(255,0,0,255));
+        glDepthRange(0,0.999);
+        for (int i=0;i<mesh.face.size();i++)
+        {
+            if (mesh.face[i].IsD())continue;
+            GLDrawFaceSeams(mesh.face[i]);
+        }
+        glPopAttrib();
+    }
 };
-}
\ No newline at end of file
+
+}