The line of sight, also known as visual axis or sightline (also sight line), is an imaginary line between a viewer/observer/spectator's eye(s) and a subject of interest, or their relative direction. The subject may be any definable object taken note of or to be taken note of by the observer, at any distance more than least distance of distinct vision. In optics, refraction of a ray due to use of lenses can cause distortion. Shadows, patterns and movement can also influence line of sight interpretation (as in optical illusions). The term "line" typically presumes that the light by which the observed object is seen travels as a straight ray, which is sometimes not the case as light can take a curved/angulated path when reflected from a mirror, refracted by a lens or density changes in the traversed media, or deflected by a gravitational field. Fields of study feature specific targets, such as vessels in navigation, marker flags or natural features in surveying, celestial objects in astronomy, and so on. To have optimal observational outcome, it is preferable to have a completely unobstructed sightline. (Wikipedia).
What is a Ray and how do we label one
👉 Learn essential definitions of points, lines, and planes. A point defines a position in space. A line is a set of points. A line can be created by a minimum of two points. A plane is a flat surface made up of at least three points. A plane contains infinite number of lines. A ray is a li
From playlist Points Lines and Planes
What is the definition of a ray
👉 Learn essential definitions of points, lines, and planes. A point defines a position in space. A line is a set of points. A line can be created by a minimum of two points. A plane is a flat surface made up of at least three points. A plane contains infinite number of lines. A ray is a li
From playlist Points Lines and Planes
Naming the rays in a given figure
👉 Learn how to label points, lines, and planes. A point defines a position in space. A line is a set of points. A line can be created by a minimum of two points. A plane is a flat surface made up of at least three points. A point is labeled using a capital letter. A line can be labeled usi
From playlist Labeling Point Lines and Planes From a Figure
👉 Learn essential definitions of points, lines, and planes. A point defines a position in space. A line is a set of points. A line can be created by a minimum of two points. A plane is a flat surface made up of at least three points. A plane contains infinite number of lines. A ray is a li
From playlist Points Lines and Planes
👉 Learn essential definitions of points, lines, and planes. A point defines a position in space. A line is a set of points. A line can be created by a minimum of two points. A plane is a flat surface made up of at least three points. A plane contains infinite number of lines. A ray is a li
From playlist Points Lines and Planes
👉 Learn essential definitions of points, lines, and planes. A point defines a position in space. A line is a set of points. A line can be created by a minimum of two points. A plane is a flat surface made up of at least three points. A plane contains infinite number of lines. A ray is a li
From playlist Points Lines and Planes
👉 Learn essential definitions of points, lines, and planes. A point defines a position in space. A line is a set of points. A line can be created by a minimum of two points. A plane is a flat surface made up of at least three points. A plane contains infinite number of lines. A ray is a li
From playlist Points Lines and Planes
Name the opposite rays in the given figure
👉 Learn how to label points, lines, and planes. A point defines a position in space. A line is a set of points. A line can be created by a minimum of two points. A plane is a flat surface made up of at least three points. A point is labeled using a capital letter. A line can be labeled usi
From playlist Labeling Point Lines and Planes From a Figure
Angle of Elevation and Angle of Depression | Don't Memorise
What do we mean by Angle of Elevation and Angle of Depression? Watch this video to know more! To learn more about, Direct, Indirect and Joint Variation enroll in our full course now: https://infinitylearn.com/microcourses?utm_source=youtube&utm_medium=Soical&utm_campaign=DM&utm_content=b
From playlist Middle School - Trigonometry
This video tutorial lesson explains the importance of light to vision. Luminous and illuminated objects are contrasted to each other and the role of reflected light in viewing illuminated objects is described. The viewing of images in the mirror is discussed and attention is given to the p
From playlist Reflection and Mirrors
Ray Diagrams for Plane Mirrors
Give Mr. H just 6 minutes to explain what a ray diagram is and to demonstrate how to construct a ray diagram for a point object and an arrow object. Examples and applications of ray diagrams are also discussed. You can find more information that supports this video on our website: Lesson
From playlist Reflection and Mirrors
Solving the Six-Foot Person Problem
This video addresses a classic question in ray optics: If a 6-foot tall person were to view their image in a plane mirror, what length of the mirror would they need to view their entire image? You can find more information that supports this video on our website: Lesson Notes: https://w
From playlist Reflection and Mirrors
Image Formation for Plane Mirrors
Improve your understanding of what an image is and why it is formed. Using a variety of animations and diagrams, Mr. H explains the meaning of an image and details why they are formed. The Law of Reflection video referenced on Slide 3 can be watched here: https://youtu.be/0Zbkt6K1kbM Yo
From playlist Reflection and Mirrors
Surveying Maths A lesson 8 - Plane table surveying - Intersection / Triangulation method
In this lesson we talk about a technique that surveyors use to quickly draw a map of an area, using a plane table, sight rule and a piece of paper.
From playlist Maths A / General Course, Grade 11/12, High School, Queensland, Australia
Overview of points lines plans and their location
👉 Learn how to label points, lines, and planes. A point defines a position in space. A line is a set of points. A line can be created by a minimum of two points. A plane is a flat surface made up of at least three points. A point is labeled using a capital letter. A line can be labeled usi
From playlist Labeling Point Lines and Planes From a Figure
Surveying Maths A lesson 9 - Radiation and Traversing Survey Methods
Last lesson we covered the first type of plane table surveying - intersection / triangulation method. In this lesson we will cover the radiation and traversing methods. Next lesson we will do a few math problems on maps created using these methods.
From playlist Maths A / General Course, Grade 11/12, High School, Queensland, Australia
Richard Tsai: "Learning optimal strategies for line-of-sight based games"
High Dimensional Hamilton-Jacobi PDEs 2020 Workshop I: High Dimensional Hamilton-Jacobi Methods in Control and Differential Games "Learning optimal strategies for line-of-sight based games" Richard Tsai, University of Texas at Austin Abstract: We present a few non-cooperative games that
From playlist High Dimensional Hamilton-Jacobi PDEs 2020
WINNER II channel model for Communications Toolbox
Using WINNER II channel models for Communications Toolbox enables you to simulate both line-of-sight (LOS) and non-LOS propagation conditions. It also allows you to apply multiple indoor and outdoor propagation scenarios. - Learn more about Communications Toolbox: http://bit.ly/2H6kQfQ
From playlist Hybrid beamforming and MIMO designs for 5G, LTE, and WLAN
Mr. H explains what an image is and how it is formed. The presentation relies upon a collection of animated diagrams showing the behavior of light rays passing through a converging and a diverging lens. Link to video "What is an Image? How and Why is it Formed?" video (referenced on slid
From playlist Refraction and Lenses
What is a line segment and ray
👉 Learn essential definitions of points, lines, and planes. A point defines a position in space. A line is a set of points. A line can be created by a minimum of two points. A plane is a flat surface made up of at least three points. A plane contains infinite number of lines. A ray is a li
From playlist Points Lines and Planes