Search results
Results from the WOW.Com Content Network
Oblique projection is a type of parallel projection: it projects an image by intersecting parallel rays (projectors) from the three-dimensional source object with the drawing surface (projection plane). In both oblique projection and orthographic projection, parallel lines of the source object produce parallel lines in the projected image. The ...
Orthographic projection (also orthogonal projection and analemma) [a] is a means of representing three-dimensional objects in two dimensions.Orthographic projection is a form of parallel projection in which all the projection lines are orthogonal to the projection plane, [2] resulting in every plane of the scene appearing in affine transformation on the viewing surface.
An oblique combination of the sinusoidal and Mollweide projections. 1906 Eckert II: Pseudocylindrical Equal-area Max Eckert-Greifendorff: 1906 Eckert IV: Pseudocylindrical Equal-area Max Eckert-Greifendorff: Parallels are unequal in spacing and scale; outer meridians are semicircles; other meridians are semiellipses. 1906 Eckert VI ...
Axonometric projections show an image of an object as viewed from a skew direction in order to reveal all three directions (axes) of space in one picture. [2] Axonometric projections may be either orthographic or oblique. Axonometric instrument drawings are often used to approximate graphical perspective projections, but there is attendant ...
Classification of Axonometric projection and some 3D projections "Axonometry" means "to measure along the axes". In German literature, axonometry is based on Pohlke's theorem, such that the scope of axonometric projection could encompass every type of parallel projection, including not only orthographic projection (and multiview projection), but also oblique projection.
Among parallel projections, orthographic projections are seen as the most realistic, and are commonly used by engineers. On the other hand, certain types of oblique projections (for instance cavalier projection, military projection) are very simple to implement, and are used to create quick and informal pictorials of objects.
Orthographic projection in cartography has been used since antiquity. Like the stereographic projection and gnomonic projection, orthographic projection is a perspective projection in which the sphere is projected onto a tangent plane or secant plane. The point of perspective for the orthographic projection is at infinite distance.
An oblique anamorphism forms an affine transformation of the subject. [2] Early examples of perspectival anamorphosis date to the Renaissance of the fifteenth century and largely relate to religious themes. [3] With mirror anamorphosis, a conical or cylindrical mirror is placed on the distorted drawing or painting to reveal an undistorted image ...