Architectural Graphics - I Kurdistan Region-Iraq Ishik University Department of Architecture Architectural Graphics - I 2 Architectural Drafting By: Nizar Najim Assistant Lecturer

Architectural Graphics-I: 2. Architectural Drafting 2.1. Drawing Lines: Line Types: Line Weights: Line Quality:

Architectural Graphics-I: 2. Architectural Drafting 2.2. Drafting Techniques: Parallel & Perpendicular Lines:

Architectural Graphics-I: 2. Architectural Drafting 1 A C B 2.2. Drafting Techniques: Bisecting: 1. Bisecting a line: 2 2. Perpendicular Bisector 3. Bisecting an angle

Architectural Graphics-I: 2. Architectural Drafting 2.2. Drafting Techniques: Subdivision:

Architectural Graphics-I: 2. Architectural Drafting 2.2. Drafting Techniques: Basic Shapes: 1. An Equilateral Triangle: 1. A Square:

Architectural Graphics-I: 2. Architectural Drafting 2.2. Drafting Techniques: Polygons: 1. Drawing a Pentagon:

Architectural Graphics-I: 2. Architectural Drafting 4 2.2. Drafting Techniques: Drawing a pentagon inside a circle: A 5 3 1 A 2 5 E E C D B 1 2 3 4 Drawing a pentagon of known sides: C B D

Architectural Graphics-I: 2. Architectural Drafting 2.2. Drafting Techniques: Drawing a Hexagon: 1. Given: A Circle of a known Diameter 2. Draw two horizontal tangent lines 3. Draw two 60o tangent lines at bottom half of the circle 4. Draw two 60o tangent lines at top half of the circle 4. Darken the lines and complete the hexagon Drawing an Octagon: 1. Given: a circle of a known diameter 2. Draw two horizontal tangent lines 3. Draw two vertical tangent lines 4. Draw two 45o tangent lines at top half of the circle 5. Draw two 45o tangent lines at bottom half of the circle 6. Darken the lines and complete the Octagon

Architectural Graphics-I: 2. Architectural Drafting 2.2. Drafting Techniques: Drawing Curved Lines: To draw a tangent to a circle or curved line segment C To draw an arc of a given radius tangent to two given straight line segments To draw two circles that are tangent to each other

Architectural Graphics-I: 2. Architectural Drafting Drawing A circle through three points: 2.2. Drafting Techniques: Drawing a concave arc tangent to two circles : Drawing an arc tangent to two circles :

Architectural Graphics-I: 2. Architectural Drafting 2.3. Dimensioning:

Architectural Graphics-I: 2. Architectural Drafting 2.4. References: 1. Ching, Francis D.K., Architectural Graphics, Sixth Edition, John Wiley& Sons, Inc., Hoboken, New Jersey, 2015 2. Jefferis, Alan, Architectural Drafting and Design, Sixth Edition, Delmar Cengage Learning, 2011 3. WALLACH, PAUL ROSS, fundamentals of Modern Drafting, Second Edition, Delmar Cengage Learning, USA, 2014 4. Internet