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Graphical projection
Planar
Parallel projection
Orthographic projection
Isometric projection
Oblique projection
Perspective projection
Curvilinear perspective
Reverse perspective
Views
Bird's-eye view
Cross section
Cutaway drawing
Exploded view drawing
Fisheye lens
Multiviews
Panorama
Worm's-eye view
Zoom lens
Topics
3D projection
Anamorphosis
Axonometry
Computer graphics
Computer-aided design
Descriptive geometry
Engineering drawing
Map projection
Picture plane
Plans (drawings)
Projection (linear algebra)
Projection plane
Projective geometry
Stereoscopy
Technical drawing
True length
Vanishing point
Video game graphics
Viewing frustum
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Net of a dodecahedron. All edges in this net have true length.
In geometry, true length is any distance between points that is not foreshortened by the view type.[1] In a three-dimensional Euclidean space, lines with true length are parallel to the projection plane. For example, in a top view of a pyramid, which is an orthographic projection, the base edges (which are parallel to the projection plane) have true length, whereas the remaining edges in this view are not true lengths. The same is true with an orthographic side view of a pyramid. If any face of a pyramid was parallel to the projection plane (for a particular view), all edges would demonstrate true length.
Examples of views in which all edges have true length are nets.
^Manual of Engineering Drawing 2009, ISBN 0750689854, pp. 81–85
a few straight lines to approximate the length of a curve will produce an estimate lower than the truelength; when increasingly short (and thus more...
Arc length is the distance between two points along a section of a curve. Determining the length of an irregular arc segment by approximating the arc segment...
projection from the ellipsoid to the sphere such that all meridians have truelength and uniform scale. The sphere may then be projected to the plane with...
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2D drawing is a perfect regular hexagon: all the black lines have equal length and all the cube's faces are the same area. Isometric graph paper can be...
from the point view of a line yields its truelength view; projecting in a direction parallel to a truelength line view yields its point view, projecting...
True Lies is a 1994 American action comedy film written and directed by James Cameron, based on the 1991 French comedy film La Totale! The film stars Arnold...
message's payload before encrypting it can help obscure the cleartext's truelength, at the cost of increasing the ciphertext's size and introducing or increasing...
caution is that modern embryologic orthodoxy indicates that the brain's truelength axis finishes rostrally somewhere in the hypothalamus where basal and...
Dimensions are usually drawn between the walls to specify room sizes and wall lengths. Floor plans may also include details of fixtures like sinks, water heaters...
close to modern Yorkshire. If the latter hypothesis is true, the Rhine would have attained a length of close to 1,650 kilometres (1,030 mi). The former hypothesis...
projection. Doing so creates a true shape image of the chosen plane. This specific category of oblique projections, whereby lengths along the directions x {\displaystyle...
True Romance is a 1993 American romantic crime film directed by Tony Scott and written by Quentin Tarantino. It features an ensemble cast led by Christian...
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Length measurement, distance measurement, or range measurement (ranging) refers to the many ways in which length, distance, or range can be measured. The...
imaged object to be parallel with the plane of projection thereby creating a true shape, full-size image of the chosen plane. Special types of oblique projections...
use of non-collapsed mechanical advantage, it is necessary to use a 'truelength' rotary lever. See, also, the incorporation of mechanical advantage into...
approximations, in relative error, to the truelengths: the approximations are in error by less than 2% of the truelengths, | L 1 − L ~ 1 | / | L 1 | < 2 % {\displaystyle...
that the error due to neglecting elevation changes underestimates the truelength by no greater than this value. According to Backpacker magazine, in total...
and four intercalated months of 29 days. Since this is longer than the truelength of a synodic month, about 29.53059 days, the calculated Paschal full...
Pterophylla camellifolia, the common true katydid, is a common North American insect in the family Tettigoniidae (katydids). Within the Tettigoniidae,...