protected override bool ThroughTriangle(FrustumParams data)
{
SelectedSubItems.Sort();
//if selection filter is ByPick/VisibleByPick selects only the first triangle
if (vp.firstOnlyInternal && !vp.processVisibleOnly && SelectedSubItems.Count > 0)
{
return(false);
}
bool through = false;
for (int i = 0; i < Triangles.Length; i++)
{
if (SelectedSubItems.BinarySearch(i) >= 0)
{
continue;
}
if (ThroughTriangle(data, GetTriangleVertices(Triangles[i])))
{
SelectedSubItems.Add(i);
through = true;
if (vp.firstOnlyInternal && !vp.processVisibleOnly)
{
return(true);
}
}
}
return(through);
}
protected override bool ThroughTriangleScreenPolygon(ScreenPolygonParams data)
{
SelectedSubItems.Sort();
for (int i = 0; i < Triangles.Length; i++)
{
if (SelectedSubItems.BinarySearch(i) >= 0)
{
continue;
}
var verts = GetTriangleVertices(Triangles[i]);
if (ThroughTriangleScreenPolygon(verts[0], verts[1], verts[2], data))
{
SelectedSubItems.Add(i);
}
}
return(false);
}
protected override void Draw(DrawParams data)
{
data.RenderContext.SetLineSize(LineWeight);
if (Color.A != 255)
{
// draws only non-selected transparent lines to avoid blended color
List <IndexLine> linesToDraw = Lines.ToList();
SelectedSubItems.Sort();
for (int i = SelectedSubItems.Count - 1; i >= 0; i--)
{
linesToDraw.RemoveAt(SelectedSubItems[i]);
}
data.RenderContext.DrawIndexLines(linesToDraw, Vertices);
}
else
{
data.RenderContext.DrawIndexLines(Lines, Vertices);
}
data.RenderContext.SetLineSize(1);
DrawSelectedSubItems(data);
}
