//----------------------------------------------------------------------------
void Boolean2D::DrawPolySolid (BspPolygon2& polygon, ColorRGB color)
{
Vector2d v0, v1;
Edge2 edge;
int i, x0, y0, x1, y1;
// Draw the edges.
for (i = 0; i < polygon.GetNumEdges(); ++i)
{
polygon.GetEdge(i, edge);
polygon.GetVertex(edge.I0, v0);
polygon.GetVertex(edge.I1, v1);
x0 = (int)(v0.X() + 0.5f);
y0 = GetWidth() - 1 - (int)(v0.Y() + 0.5f);
x1 = (int)(v1.X() + 0.5f);
y1 = GetWidth() - 1 - (int)(v1.Y() + 0.5f);
DrawLine(x0, y0, x1, y1, color);
}
// Draw the vertices.
ColorRGB black(0, 0, 0);
for (i = 0; i < polygon.GetNumVertices(); ++i)
{
polygon.GetVertex(i, v0);
x0 = (int)(v0.X() + 0.5f);
y0 = GetWidth() - 1 - (int)(v0.Y() + 0.5f);
SetThickPixel(x0, y0, 1, black);
}
}
//----------------------------------------------------------------------------
void BspPolygon2::GetInsideEdgesFrom (const BspPolygon2& polygon,
BspPolygon2& inside) const
{
assertion(mTree != 0, "Tree must exist.\n");
BspPolygon2 ignore;
const int numEdges = polygon.GetNumEdges();
for (int i = 0; i < numEdges; ++i)
{
int v0 = polygon.mEArray[i].I0;
int v1 = polygon.mEArray[i].I1;
Vector2d vertex0 = polygon.mVArray[v0];
Vector2d vertex1 = polygon.mVArray[v1];
mTree->GetPartition(*this, vertex0, vertex1, ignore, inside, inside,
ignore);
}
}
