Lecture ii drafting of lines
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LECTURE-II DRAFTING OF LINES ARCHITECTURE DRAWING
Transcript of Lecture ii drafting of lines
L E C T U R E - I I
DRAFTING OF L INES
ARCHITECTURE DRAWING
To make students understand different types of
lines used in architectural drawing with various
grades of pencils (B & H grades) for the better
understanding of line intensity too.
INTENT
CONTENT
What is a line.
Different types of lines.
Purpose of lines.
Major line work
Assignment
WHAT IS A LINE
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.
Ar. Hena Tiwari,GCAD,Sonipat
DIFFERENT TYPES OF LINESOutlines :
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.
Ar. Hena Tiwari,GCAD,Sonipat
Margin lines:
They are continuous thin lines.
They are used at the starting of the drawings.
Sheet edge
Margin line
Ar. Hena Tiwari,GCAD,Sonipat
Dimension lines
These lines are continuous thin lines.
They are used to denote the dimension of the objects.
3 cm.
Extension or projection lines:
These lines also are continuous thin lines.
They extend by about 3mm beyond the dimension lines.
Extension line
Construction line:
These lines are drawn for constructing figures.
They are shown in geometrical drawings only.
They are continuous thin light lines.
Hatching / section line:
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.
Leader / pointer line:
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.
Short break line
These lines 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.
Hidden/ dotted line
Interior or 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.
Centre line
Centre lines are 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.
PURPOSE OF LINES
Line can be used to showshape,contour,texture& tone.
Ar. Hena Tiwari,GCAD,Sonipat
Durer & Van Gogh are well known for their line work.
Albrecht Durer Vincent Van Gogh
NOTABLE PERSONALITIES
Albrecht Durer Work
Vincent Van Gogh Work
Draw different types of lines on the sheet.Make a composition using different types of lines consider shape, contour, texture and tone.
ASSIGNMENT
TIPFirst draft in light pencil ( h grade) after that final it with HB or B grade pencil.
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