Lecture03-Architectural Drawing Systems

8/19/2019 Lecture03-Architectural Drawing Systems

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UEBA1413 ARCHITECTURAL STUDIO DRAWING I

Lecture 03- ARCHITECTURAL DRAWING SYSTEMS│prepared by Ar. Quake Huay Tin│04 Feb 2016


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Major types of Architectural drawing systems:-1. Multiview Drawings (Plans, Sections, Elevations)2. Paraline Drawings (Isometric, Dimetrics, Trimetrics)

3. Perspective Drawings (one, two or three points perspectives)

The above drawings is representing three-dimensional forms,constructions, and spatial environments on a two dimensional surface.


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MULTIVIEW DRAWINGS- by OrthographicProjection It represents a three-dimensional form or

construction by projecting linesperpendicular to the picture plane.

Projectors are both parallel to each otherand perpendicular to the picture plane.

Major faces or facets of the subjects aretypically oriented parallel with the pictureplane. It represent these faces it their truesize, shape and proportions.

To fully and accurately describe a three-dimensional subject, we need series of

orthographic drawings. To be in scaled drawings.

Naming of Orthographic drawings:-1. Top views- PLAN2. Front, rear and side views- ELEVATION

3. Cuts made through a building- SECTION


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Examples of Orthographic projections inproducing Multiview Drawings:-1. Simples forms/ objects

2. A building form


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PARALINE DRAWINGS: by Axonometric &Oblique Projection

It conveys the three-dimensional nature ofa form or construction in a single pictorialview.

Paraline drawings are always aerial orworm’s eye views.

Lines in Paraline Drawings remain parallel

in the drawing. All lines parallel to major X, Y and Z axes

are scalable. Axonometric projections produce

Isometric, Dimetric or Trimetric views. Oblique projections produce Plan

Obliques or Elevation Obliques.


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Types of Axonometric Projections:1. Isometric Projection: 3 of the

principal axes have equal angles

and are equally foreshortened.- mostcommonly used

2. Dimetric Projection: 2 of the principalaxes are equally foreshortened andthe third appears longer or shorterthan the other two.

3. Trimetric Projection: all 3 principalaxes are foreshortened at differentrate.


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Types of Oblique Projections:1. Plan Obliques: orient the horizontal

planes of the subject parallel to thepicture plane. These horizontal planes(Plans) are shown in true size andshape, while the other two principal

set of vertical planes areforeshortened.

2. Elevation Obliques: orient oneprincipal set of vertical planes of thesubject parallel to the picture plane.This set is shown in true size and shape,while the other vertical set of planesare foreshortened.


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PERSPECTIVE DRAWINGS: by

perspective projection It portrays a three-

dimensional form orconstruction by projecting

all its points to a PicturePlane (PP) by straight lines

that converge at a fixedpoint representing a singleeye of the observer, whichis called Station Point (SP).

Characteristics ofperspective drawings:

Convergence of parallellines and reduced size withdistance.


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A well drawn perspective drawingconveying the experience of being ina three-dimensional spatial

environment. Three layers of depth within a scene:

foreground, middleground andbackground.

We can use a series of perspectivesto convey the experience of movingthrough a sequence of spaces.

For a small-scale object/ detail, thedegree of convergence of parallellines is so slight; thus a paraline view isusually a better choice.


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COMMUNICATING DESIGN IDEAS: Architectural drawings are used

to initiate, explore, develop andcommunicate design ideas.

The choice of a particulardrawing systems establish whichdesign issues are madeimportance and directs how we

think about the subject of thedrawings.

Scale & Detail: Architecturaldrawings are typically executedat a reduced scale to fit ontopaper or boards. The scale of a

drawing determines how muchdetail can be included in thegraphic image.


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Architectural drawings in big scalediscloses details.


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Reference:Ching, Francis D.K. with Steven P. Juroszek(1998). Design Drawing. United States of

America: John Wiley & Sons

ASSIGNMENT 03: 5% - Kindly refer to the given exercises as below:-

- Submission date: 13 July 2015, 2p.m


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Reference:Ching, Francis D.K. with Steven P. Juroszek (1998). DesignDrawing. United States of America: John Wiley & Sons


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References:1. Ching, Francis D.K. (2002). Architectural graphic. (4th ed.). New York: Van Nostrand Reinhold. ITP InternationalThompson Publishing Company.2. Ching, Francis D.K. with Steven P. Juroszek (1998). Design Drawing. United States of America: John Wiley & Sons

THANK YOU! Next Lecture 04 (18/02/16): Multiview Drawings (Floor Plans)

Lecture03-Architectural Drawing Systems

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