Views in Technical DRowing

Major Types of views

• Multiview Projections

  • like the work sheets (just faces)

• Axonometric Projection

  • Isometric

    • angles a,b and c are jual
      • all edges are equal in length

  • Dimetric

    • Angles A and C are equal
      • those two edges are equal

  • Trimetric

    • No equal anything
  • 

• Oblique projection

  • there is at least 1 true face
    • the rest are scaled down

• Perspective

  • (like us just moving around)

  • Terms

    • Horizon line

      • goes towards the vanishing point
      • is parralel with the ground line

    • Ground line

      • the ground line

    • Vanashing point

      • all lines converge to it

  • VP possition and number

    • 1 point perspective

      • 1 VP

    • 2 point perspective

      • 2 VP

    • 3 point perspective

      • 3 VP

• Parallel projection

  • it is the same as worksheet 1

  • we just have the observer at infinity and the face orthoganal to the LOS

First Angle VS Third Angle Projections

• Third angle

  • US standard

• First Angle

  • european standard

Language of lines

• Sketches use many lines

  • 

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