/** Closes a polyline by triangulating all it's vertices with it's baricenter, visualizing it as a polygon FROM OUTSIDE**/
public void closePolylineOutside(Polyline poly)
{
Vertex baricenter = new Vertex();
baricenter.setPosition(poly.calculateBaricenter());
baricenter.setUV(poly.calculateBaricenterUV());
int baricenterIndex = getNumVertices();
addVertex(baricenter);
//addHoleIndex (baricenterIndex); //Special case when closing after a hole, helps to disimulate triangulation
for (int i = 0; i < poly.getSize(); ++i)
{
//Left-hand!!
addTriangle(poly.getVertex(i + 1).getIndex(), poly.getVertex(i).getIndex(), baricenterIndex);
}
}
/**Duplicates first vertex and set it at last position with UV coord (1,y). This has to be called as the last
* of all the polyline modifier functions **/
public void duplicateFirstVertex()
{
InitialPolyline newPolyline = new InitialPolyline(getSize() + 1);
for (int i = 0; i < getSize(); ++i)
{
newPolyline.setVertex(i, getVertex(i));
}
Vertex lastV = new Vertex(getVertex(0));
newPolyline.setVertex(getSize(), lastV);
Vector2 newUV = lastV.getUV();
newUV.x = 1.0f;
lastV.setUV(newUV);
this.mVertices = newPolyline.mVertices;
}