- Projection Of Straight Lines
- Straight Line Projection Definition
- Projections Of Straight Lines Ppt
- Projections Of Straight Lines Drawing
- Projections Of Straight Lines
- If a straight line p is not a ray of projection (not perpendicular to either projection plane), then its horizontal and vertical projections are lines p' and p'. Hence, in Monge's projection, a straight line is represented by a pair of projections ( p', p' ).
- In standard presentation, conic (or conical) projections map meridians as straight lines, and parallels as arcs of circles. Pseudoconical In standard presentation, pseudoconical projections represent the central meridian as a straight line, other meridians as complex curves, and parallels as circular arcs.
PROJECTIONS STRAIGHT LINES. PROJECTIONS OF STRAIGHT LINES. Definition of Straight line. A straight line is the shortest distance between two points. Top views of two end points of a straight line, when joined, give the top view of the straight line. Slideshow 6347892. A straight line may have different orientations in space We'll be positioning this line in different ways th. In this tutorial, the object is a straight line. Pseudocylindrical projections represent the central meridian as a straight line segment. Other meridians are longer than the central meridian and bow outward, away from the central meridian. Pseudocylindrical projections map parallels as straight lines. Along parallels, each point from the surface is mapped at a distance from the central meridian that is proportional to its difference in longitude from the central meridian.
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Projections of Straight LinesA straight line is defined as the shortest distancebetween two points.. The projection of straight line are drawn byjoining the respective projections of its endpoints.. The actual length of the line is known as TrueLength and is denoted by TL.
Conditions of Straight Line1. Line perpendicular to H.P.2. Line perpendicular to V.FP.3. Line parallel to both H.P. and V.P.4. Line inclined to H.P. and parallel to V.P.5. Line inclined to V.P. and parallel to H.P.6. Line inclined to both the reference planes.
1. Line perpendicular to H.P.Q. A 50 mm long line PQhas its end P at a distance of20 mm above H.P. The line isperpendicular to H.P. and 30mm in front of V.P. Draw itsprojection.2
2. Line perpendicular to V.P.Q. Draw the projection of 50mm long line PQ has its end Pat a distance of 20 mm in frontof V.P. and 30 mm above H.Pand the line is perpendicularto V.P.
3. Line parallel to both H.P. & VP.Q. A 50 mm long line PQ is parallel to both H.P. and V.P. The line is 25mm in front of V.P. and 10 mm above H.P. Draw its projection.03
2. A jutting out; also, a part jutting out, as of a building; an extension beyond something else. [1913 Webster]
3. The act of scheming or planning; also, that which is planned; contrivance; design; plan. --Davenant. [1913 Webster]
4. (Persp.) The representation of something; delineation; plan; especially, the representation of any object on a perspective plane, or such a delineation as would result were the chief points of the object thrown forward upon the plane, each in the direction of a line drawn through it from a given point of sight, or central point; as, the projection of a sphere. The several kinds of projection differ according to the assumed point of sight and plane of projection in each. [1913 Webster]
5. (Geog.) Any method of representing the surface of the earth upon a plane. [1913 Webster]
{Conical projection}, a mode of representing the sphere, the sphericalsurface being projected upon the surface of a cone tangent to the sphere, the point of sight being at the center of the sphere.
Projection Of Straight Lines
{Cylindric projection}, a mode of representing the sphere, the spherical surface being projected upon the surface of a cylindertouching the sphere, the point of sight being at the center of the sphere.
Straight Line Projection Definition
{Globular}, {Gnomonic}, {Orthographic}, {projection},etc. See under {Globular}, {Gnomonic}, etc.
{Mercator's projection}, a mode of representing the sphere in which the meridians are drawn parallel to each other, and the parallels of latitude are straight lines whose distance from each other increases with their distance from the equator, so that at all places the degrees of latitude and longitude have to each other the same ratio as on the sphere itself.
{Oblique projection}, a projection made by parallel lines drawn from every point of a figure and meeting the plane of projection obliquely.
{Polar projection}, a projection of the sphere in which the point of sight is at the center, and the plane of projection passes through one of the polar circles.
Projections Of Straight Lines Ppt
{Powder of projection} (Alchemy.), a certain powder cast into a crucible or other vessel containingprepared metal or other matter which is to be therebytransmuted into gold.
{Projection of a point on a plane} (Descriptive Geom.), the foot of a perpendicular to the plane drawn through the point.
Projections Of Straight Lines Drawing
{Projection of a straight line of a plane}, the straight line of the plane connecting the feet of the perpendiculars let fall from the extremities of the given line. [1913 Webster]
Projections Of Straight Lines
Syn: See {Protuberance}. [1913 Webster] [1913 Webster]