Introduction to intersectionofsurfaces.wordpress.com

WHAT IS THIS WEBSITE ABOUT?

This website  focuses on the use interactive videos to graphically teach the principles of the topic of Intersection of surfaces which is related to the Leaving Certificate subject of Design and Communication Graphics. Intersecting surfaces are everyday occurrences. these intersecting surfaces produce a line of intersection. here are some everyday examples of intersecting surfaces. 

                  

     Valley on a Roof           Bike Frame                    Garden Fence

 This website deals with bridging the gap between 3D and 2D graphics in order communicate these principles effectively.

This e-learning website features material that is designed with the pupils’ and teachers educational interests in mind.

It aims to increase the pupils’ knowledge and understanding of the principles of intersection of surfaces.

This site also Hosts teaching material that would be of benefit to all teachers in the teaching of this topic.


The topics that shall be covered in this website that relate to intersection of surfaces are:

  1. The section of solids when cut by a plane.
  2. Using horizontal and vertical cutting planes to locate the line of intersection between two intersecting surfaces
  3. The use of simply inclined cutting planes to determine the line of intersection from 2 interpenetrating surfaces.
  4. Principles involved in using auxiliary views to determine a line of intersection.
  5. The hinge plane and principles associated with it 
(All PowerPoint’s that are shown in the videos are readily available for download)
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Section of Solids: The Cone

SECTIONS OF THE CONE

This video looks at how cut sections can be produced from a cone when intersected by a cutting plane.

What should you learn after watching this video?

The sections you will learn about on a cone are……

  1. Circular section
  2. Elliptical section
  3. Parabolic section
  4. Hyperbolic section
  5. Straight line elements (triangular section)

Section of Solids: The Cylinder

SECTIONS OF THE CYLINDER

This video looks at how cut sections can be produced from a cylinder when intersected by a cutting plane.

What should you learn after watching this video?

The sections from a cylinder you will learn about are…..

  1. Circular section
  2. Elliptical section
  3. Rectangular section (straight line elements)

Section of Solids: The Sphere

SECTIONS OF THE SPHERE

This video looks at how cut sections can be produced from a sphere when intersected by a cutting plane.

What should you learn after watching this video?

The sections from a sphere you will learn about are…..

  1. Circular section
  2. Elliptical section
  3. Also how true shape of any cut section on a sphere is a circle

Section of Solids: The Hexagonal Pyramid

SECTIONS OF THE PYRAMID

This video looks at how cut sections can be produced from a hexagonal pyramid when intersected by a cutting plane.

What should you learn after watching this video?

The sections from a hexagonal pyramid you will learn about are…..

  1. Regular Hexagonal section
  2. Irregular hexagonal section
  3. Triangular section (straight line elements)