![]() TypeĬhecks if for any two points of the quad, all points on their connecting line also belong to the quad. The smallest rectangle containing the quad, represented by the blue area in the following picture. ParametersĪ new quad (no operation if this is the infinite quad). ![]() (New in version 1.17.0) “Morph” the quad with a matrix-like using a point-like as fixed point. Modify the quadrilateral by transforming each of its corners with a matrix. Without parameters, a quad consisting of 4 copies of Point(0, 0) is created. If “quad” is specified, the constructor creates a new copy of it. Overloaded constructors: “ul”, “ur”, “ll”, “lr” stand for point_like objects (the four corners), “sequence” is a Python sequence with four point_like objects. ![]() IRect.quad to obtain their respective tetragon versions.Ĭlass API class Quad _init_ ( self ) _init_ ( self, ul, ur, ll, lr ) _init_ ( self, quad ) _init_ ( self, sequence ) Vice versa, rectangles now have attributes Rect.quad, resp. shear matrices produce parallelograms, and non-invertible matrices deliver “degenerate” tetragons like triangles or lines.Īttribute Quad.rect obtains the envelopping rectangle. Property Quad.is_rectangular checks whether a quad can be thought of being the result of such an operation. all of its corners again enclose angles of 90 degrees. Lathing an arrow around its line of symmetry produces an arrinder.If the corners of a rectangle are transformed with a rotation, scale or translation Matrix, then the resulting quad is rectangular (= congruent to a rectangle), i.e. All rhombi are kites.Īrrow An arrow is a kite with one angle reflex. It has one line of symmetry - the line containing the pair of points of unequal angles. As such, the two edges adjacent to one of the unequal pair of angles share an equal length, as do the remaining two edges. Kite A kite has one pair of opposite angles equal, with the other pair not equal. Lathing a trapezium around its line of symmetry produces a frustum lathing it around its longer edge produces an expanded bicone. It has one line of symmetry - the line containing the midpoints of the two parallel sides. Trapezium A trapezium has two pairs of adjacent, equal angles, with the two edges connecting the pairs of equal length, and the other two edges parallel to each other. Square noun (printing) A certain number of lines, forming a portion of a column, nearly square used chiefly in reckoning the prices of advertisements in newspapers. Lathing a parallelogram around any of its edges produces a cylindrogram. Tetragon noun a four-sided polygon Square noun (North America) A dessert cut into rectangular pieces, or a piece of such a dessert. All rectangles and rhombi are parallelograms. Parallelogram A parallelogram has opposite edges the same length and opposite angles equal. Lathing a rhombus around one of its lines of symmetry produces a bicone. It has two lines of symmetry - two diagonals - plus order two rotational symmetry. Rhombus A rhombus has all edges the same length and opposite angles equal. Schematic of the 3D tetragon tessellated bifacial module under vertical directional incident light (left side) and under omnidirectional incident. It has two lines of symmetry - horizontal and vertical - plus order two rotational symmetry. Rectangle A rectangle has opposite edges the same length and all angles 90 degrees. ![]() It has four lines of symmetry - horizontal, vertical and two diagonals - plus order four rotational symmetry. Square A square is the most constrained tetragon having all edges the same length and all angles being 90 degrees. There are several variations of the tetragon. A tetragon is a two-dimensional shape with four straight edges.
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