SplitVertical
Grasshopper2.Extensions.RectangleExtensionMethods
Examples
using Grasshopper2.Extensions;
// As an extension method
rectangle.SplitVertical(y, out RectangleF above, out RectangleF below);
// As a static method
RectangleExtensionMethods.SplitVertical(rectangle, y, out above, out below);