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2.4 Demands for the Box Integration Method.The second kind of grids are usually known as ortho-product or ortho grids. This article introduces the CSS Grid Layout and the new terminology that is part of the CSS Grid Layout Level 1 specification. Grids can be used to lay out major page areas or small user interface elements. Within this work, we will only consider simple element grids, and discriminate between triangular shaped elements, which are triangles in two dimensions and tetrahedrons for three dimensions, and rectangle shaped elements, rectangles for two dimensions and cuboids for three dimensions. CSS grid layout introduces a two-dimensional grid system to CSS.
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Therefore, in most simulators only mixed element grids with some basic element types, such as rectangles and triangles or tetrahedrons and cuboids, are implemented. The numerical discretization method must be applicable for all types of elements that are used in the grid, which limits the set of usable element types and reduces the flexibility of this method. However, those mixed element grids are often not easy to handle with regard to both grid generation as well as numerical discretization. The boundary approximation of these elements can sometimes be better and the total number of grid elements is usually reduced. It can often be an advantage to allow differently shaped elements, since the use of different element types may result in grids that are more flexible. Grids with only one element class have to be distinguished from grids with multiple element classes. One way to classify grids is by their basic grid elements. The analytical problem the chosen grid type must be accounted for.ĭifferent numerical methods require special kinds of grids and the discretization process depends on the grid type, too. Next: 2.1 Ortho Grids Up: Dissertation Johann Cervenka Previous: 1.2 Influence of the