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Lecture ii drafting of lines
This document discusses different types of lines used in architectural drawings. It defines a line and describes various line types including outlines, margin lines, dimension lines, extension lines, construction lines, hatching/section lines, leader/pointer lines, border lines, short and long break lines, hidden/dotted lines, and center lines. It explains the purpose and characteristics of each line type. The document concludes with an assignment asking students to draw different line types in a composition considering shape, contour, texture and tone.
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Lecture ii drafting of lines
- 1. L E CT U R E - I I DRAFTING OF LINES ARCHITECTURE DRAWING
- 2. To make studentsunderstand different types of lines used in architectural drawing with various grades of pencils (B & H grades) for the better understanding of line intensity INTENT
- 3. CONTENT What is aline. Different types of lines. Purpose of lines. Major line work Assignment
- 4. WHAT IS ALINE A line is a continuous mark made by a pencil, brush, pen or other tool. Lines can be thick or thin, straight or curved, jagged or smooth, light or heavy. Lines can also be suggested by the shape and massing of a building. For instance, a building can look horizontal or vertical.
- 5. Ar. Hena Tiwari,GCAD,Sonipat DIFFERENTTYPES OF LINES Outlines : These are the lines which are drawn to represent the visible edges and surface boundary of the object. These are continuous thick and wide lines.
- 6. Ar. Hena Tiwari,GCAD,Sonipat Marginlines: They are continuous thin lines. They are used at the starting of the drawings. Sheet edge Margin line
- 7. Ar. Hena Tiwari,GCAD,Sonipat Dimensionlines These lines are continuous thin lines. They are used to denote the dimension of the objects. 3 cm.
- 8. Extension or projectionlines: These lines also are continuous thin lines. They extend by about 3mm beyond the dimension lines. Extension line
- 9. Construction line: These linesare drawn for constructing figures. They are shown in geometrical drawings only. They are continuous thin light lines.
- 10. Hatching / sectionline: These lines are drawn to make the section evident. They are continuous thin lines and are drawn generally at an angle of 45 degree to the main outline of the section. They are uniformly spaced about 1mm to 2 mm apart.
- 11. Leader / pointerline: These lines are drawn to connect the node with the feature to which it applies. It is a continuous thin line. Border line: Perfectly rectangular working space is determined by drawing the border lines. They are continuous thin lines.
- 12. Short break line Theselines are continuous, thin and wavy. They are drawn freehand and are used to show a short break, or irregular boundaries. Long break line These lines are thin ruled lines with short zigzags within them. They are drawn to show long breaks.
- 13. Hidden/ dotted line Interioror hidden edges and surfaces are shown by hidden lines. They are also called dotted lines. They are of medium thickness and made up of short dashes of approximately equal length of about 2mm spaced at equal distances of about 1 mm.
- 14. Centre line Centre linesare drawn to indicate the axes of cylindrical, conical or spherical objects or details, and also to show the centers of circles and arcs. They are thin, long, chain lines composed of alternately long and dot spaced approximately 1 mm apart. The long dashes are about 9 to 12 mm.
- 15. PURPOSE OF LINES Linecan be used to show shape, contour, texture & tone.
- 16. Ar. Hena Tiwari,GCAD,Sonipat Durer& Van Gogh are well known for their line work. Albrecht Durer Vincent Van Gogh NOTABLE PERSONALITIES
- 17.
- 18. Vincent Van GoghWork
- 19. Draw different typesof lines on the sheet. Make a composition using different types of lines consider shape, contour, texture and tone. ASSIGNMENT TIP First draft in light pencil ( h grade) after that final it with HB or B grade pencil.