PICTORIAL DRAWING.pptx

pictorial drawing

1. PICTORIAL DRAWING GROUP 2 - DRAFTERS

2. I. ROOUTINE ACTIVITY A. Cleaners B. Prayer C. Checking of attendance D. 5 minutes silence E. Review of the discussion F. Start of the class

3. II. OBJECTIVES At the end of the lesson, students should be able to: define pictorial drawing . identify the three types of pictorial drawing; and appreciate the imporatance of pictorial drawing in technical drafting.

4. III. MOTIVATION S _ _ S _ R _ P _ R S K Y S C R A P E R

5. A _ C _ _ _ E _ _ _ R _ A R C H I T E C T U R E

6. P E R S P E C T I V E _ _ R _ P _ C _ _ V _

7. IV. LESSON PROPER A Pictorial Drawing is an image of an object (actual or imagined) viewed as it would be seen by someone who looks at the object either in a chosen direction or from a selected point of view. Pictorial drawings or sketches often are more readily made and more clearly understood than are Orthogonal Drawings.

8. (Front, top, and side views of an object). Pictorial drawings, either sketched  freehand  or made with drawing instruments, are frequently used by engineers and architects to convey ideas to their assistants and clients.

9. A Pictorial drawing provides a 3D image to help understand the shape of an object or to assist in interpreting a drawing. There are 3 main ways to draw a pictorial drawing

10. THREE TYPES OF PICTORIAL DRAWING Isometric Olique Perpective

11. Isometric drawing An Isometric drawing is a pictorial representation of an object in which all three dimensions are drawn at full scale. The term isometric means “equal measurement”. Isometric drawing is the most commonly used method of pictorial drawing. Isometric drawings are built on three lines, called isometric axes. 

12. One is drawn vertically and the other two with the 30° set square either side of it. An Isometric drawing is a way of presenting designs in three dimensions (3D).  They can be completed using the 30/60 set square or freehand. An Isometric drawing is one of a family of three-dimensional views called pictorial drawings.

13. In an isometric drawing, the object’s vertical lines are drawn vertically, and the horizontal lines in the width and depth planes are shown at 30 degrees to the horizontal. The true dimension of the object is used to construct the drawing.  

14. These dimension can be taken from either drawings completed in orthographic or by measuring an object. Isometric drawings or images have become the industry standard for parts manuals, technical proposals, patent illustrations and maintenance publications due to their use of true length and the ability for untrained people to understand. 

15. Oblique projection Oblique projection is a method of drawing objects in 3 dimensions. It is quite a simple technique compared to isometric or even perspective drawing. However, to draw accurately in oblique projection traditional drawing equipment is needed

16. Oblique projections illustrate the general 3 dimensional shape of the object. However only faces of the object parallel to the plane of projection are shown at there true size and shape, that is angles and lengths are preserved for these faces only. In fact ,the oblique projection of these faces is equivalent to an orthographic front view.

17. TYPES OF OBLIQUE PROJECTIONS CAVALIER PROJECTION CABINET PROJECTION

18. CAVALIER PROJECTION A cavalier projection is obtained when the angle between oblique projectors and the plane of projection is 45 degree. In a cavalier projection the foreshortening factors for all three principal direction are equal. The resulting figure appears too thick. A cabinet projection is used to correct this deficiency.

19. CABINET PROJECTION An oblique projection for which the foreshortening factor for edges perpendicular to the plane of projection is one half is called a cabinet projection.

20. Perspective drawings is one of the best types of drawings to use to provide a pictorial representation of an object. They produce an image of an object in three dimensions that is very similar to what the human eye sees. Perspective drawings can be in one point, two point or three point perspective. 

21. One of the most common uses of perspective drawing is in architecture, where it is used to provide a client, or the public, an image that gives a good representation of how the project will look when it is built. One point perspective is often used to represent a room on paper. 

22. As well as architecture, perspective drawing is often used in the furniture industry to show clients the final appearance of a piece of furniture they might commission.

23. IMPORTANCE OF TECHNICAL DRAWING Communication & Coordination – Technical drawings serve as a communications network between designers, who generate ideas, and producers, who put those ideas into action. Engineers, builders, and architects can all understand them because they are written in a common language. 

24. A technical drawing is the instruction manual for something that needs to be built or manufactured. It is exact in offering a visual representation of what it’s intended to be, in detail. It clearly communicates the specifications of the idea.

25. Once the technical drawing is created, the manufacturer has a concise idea of how to create the item in physical form. This visual language helps to ensure that the drawing is not ambiguous; it is accurate and relatively simple to understand. 

26. REFERENCE LESSON PROPER - asstudent.com /2013/04/11/pictorial-drawing/#:~:text=A%20Pictorial%20Drawing%20is%20an,understood%20than%20are%20Orthogonal%20Drawings.

27. V. GENERALIZATION -Why is pictorial drawing is important? -Identify the three types of pictorial drawing? -Why is it important to understand pictorial drawing? -Can pictorial drawing be used as an effective tool for communication and visualization in various professional settings?

28. THANKYOU!!! MEMBERS: LAMIO, LAN DEMZEY JUNDOS, JUSTINE D. LAPU-OS, JOHN LEONARD J. LAURISTA, JONATHAN P. LEYSA, GERARD C.