public void UpdateAttribute(DataAttribute attribute)
{
Attribute = attribute;
attributeLabel.text = Attribute.Name;
UpdateTickLabels();
}
public int[] GenerateIndices()
{
dataAttributes.TryGetValue(IATKProperty.X, out DataAttribute xAttribute);
dataAttributes.TryGetValue(IATKProperty.Y, out DataAttribute yAttribute);
// Create our 2D list of points from x and y attributes
int numPoints = xAttribute.Length;
Vector2[] allPoints = new Vector2[numPoints];
for (int i = 0; i < numPoints; i++)
{
allPoints[i].x = xAttribute.Data[i];
allPoints[i].y = yAttribute.Data[i];
}
List <int> triangles = new List <int>();
// Get the attribute that we're grouping by
DataAttribute grouping = ExpressoParser.ParseExpression(VisualisationReference, VisualisationReference.Group);
DataAttribute piecing = ExpressoParser.ParseExpression(VisualisationReference, VisualisationReference.Piece);
int dataIdx = 0;
int vertexIdx = 0;
foreach (int group in grouping.ReverseLevels.Keys)
{
foreach (int piece in piecing.ReverseLevels.Keys)
{
// Create a smaller list of points just for this group
List <Vector2> pointsList = new List <Vector2>();
for (int i = dataIdx; i < numPoints; i++)
{
if (grouping.Data[i] != group || piecing.Data[i] != piece)
{
dataIdx = i;
break;
}
pointsList.Add(allPoints[i]);
}
if (pointsList.Count == 0)
{
continue;
}
Vector2[] points = pointsList.ToArray();
Triangulator triangulator = new Triangulator(points);
int[] tris = triangulator.Triangulate();
bool isClockwise = UtilMath.IsPointListClockwise(points);
// Front vertices
for (int i = 0; i < tris.Length; i += 3)
{
triangles.Add(vertexIdx + tris[i]);
triangles.Add(vertexIdx + tris[i + 1]);
triangles.Add(vertexIdx + tris[i + 2]);
}
// Back vertices
for (int i = 0; i < tris.Length; i += 3)
{
triangles.Add(numPoints + vertexIdx + tris[i + 2]);
triangles.Add(numPoints + vertexIdx + tris[i + 1]);
triangles.Add(numPoints + vertexIdx + tris[i]);
}
for (int i = 0; i < points.Length; i++)
{
int n = (i + 1) % points.Length;
triangles.Add(vertexIdx + n);
triangles.Add(vertexIdx + i + numPoints);
triangles.Add(vertexIdx + i);
triangles.Add(vertexIdx + n);
triangles.Add(vertexIdx + i + numPoints);
triangles.Add(vertexIdx + n + numPoints);
}
vertexIdx += pointsList.Count;
}
}
return(triangles.ToArray());
}