Portland Community College | Portland, Oregon

The student will learn the proper use of drafting equipment. Drawing assignments will be used to teach proper sheet layout, line weight, symbol use and lettering technique. Also, drafting shortcuts and layout of landscape drawings will be covered.
This course is required for an Associate of Applied Science Degree or a two-year certificate in Landscape Technology.
The transferability, of credits depends entirely upon the institution to which the student wishes to transfer.

Students completing this course should be able to produce/draw and read accurate, professional quality drawings of the
following types:
• general plans
• planting plans and plant lists
• section elevations
• one-point perspectives

Graded course. A series of drafting projects will be evaluated on drafting  technique and quality, creativity in drawing, completion of work by assigned deadlines and drafting improvement. Improvement of an individual's skills will be evaluated rather than evaluation by comparison to the skill level of the rest of the class. Specific evaluation procedures will be discussed in class.

1.0 BASIC LANDSCAPE DRAFTING TECHNIQUES
1.1.0 Tools and Equipment
1.1.1 Identify the following types of drafting paper and demonstrate the use of a. and b.:
a. 1000 H clearprint
b. Buff or "skinny" tracing paper
c. Blueprint paper
1.1.2 Appropriately use the following drafting tools:
a. Parallel rule
b. 30-60-90, and 45 degree triangle
c. Flexible curve
d. Lettering guide
e. Mechanical pencil
f. HB, H, 2H, or 3H leads
g. Erasers
h. Erasing shield
i. Gummed erasing pad
j. Drafting brush
k. Bow compass
1. Large and small or combination circle
template
m. Felt-tip marker
n. Drafting tape
o. Architects scale and Engineers scale
1.1.3 Layout landscape drawings to scale using both the architect's and the engineer's scales.
l.2.0 Order of Operations
1.2.1 demonstrate the proper order used to layout accurate landscape drawings in the least amount of time
1.2.2 Use proper drawing techniques in drafting the following on landscape plans:
a. Basic construction lines and measurements
b. Darkening of construction lines
C. Symbols, labels, and lettering
1.3.0 Techniques for Keeping Drawings Clean
1.3.1 Use proper cleaning techniques for drafting table and equipment.
1.3.2 Use erasers, erasing shield, drafting brush, and an erasing pad to remove unwanted lines and excess carbon from a drawing.
1.3.3 Use cover sheets and drawing reversal to protect finished work.
1.4.0 Lines and Lettering
1.4.1 Identify and use the following lines:
a. Object lines (structural and planting)
b. Hidden lines
c. Extension and dimension lines
d. Property lines
e. Label lines
1.4.2 Identify the lines listed in Objective 1.4.1 which carry the darkest values for general plans and planting plans.
1.4.3 Draft landscape drawings with line weight that will print clearly and accurately.
1.4.4 Use proper lettering sizes for the following parts of the landscape drawing:
a. Title block
b. Sheet title, north arrow, and scale
c. Labels
d. Notes
e. Plant lists
1.4.5 Å·ÖÞ±­¾öÈü¾º²Âapp_Å·ÖÞ±­×ãÇòÍø-Ͷע|¹ÙÍø a simple block lettering style that is easily readable.
1.5.0 Labeling and Symbols
1.5.1 Use labels and label arrows to identify unclear portions of landscape plans and to identify plants and construction materials on plans.
1.5.2 Identify and use symbols commonly used in the following landscape drawings:
a. General plans
b. Planting plans
c. Sections and section-elevations
1.6.0 Sheet and Project Layout
1.6.1 Demonstrate the proper layout of landscape drawings including title block, sheet and/or drawing title, numbering system, scale, and North arrow if
appropriate.
2.0 DRAFTING SHORTCUTS
2.1.0 Enlargement Techniques
2.1.1 Use a radical line system for enlarging drawings.
2.1.2 Use a grid system for enlarging drawings.
2.1.3 Explain how good enlargement techniques can shorten drafting time and improve accuracy in reproducing landscape drawings.
2.2.0 Geometric Construction and Line/Space Division
2.2.1 Perform the following geometric construction:
a. Bisect a line (2 techniques)
b. Construct an arc tangent to two lines at
right angles.
c. Construct arc tangent to two lines not
perpendicular.
d. Construct a reverse curve.
e. Bisect an angle.
f. Construct a perpendicular to a given line.
g. Construct a parallel to a given line.
2.2.2 Use two methods to divide lines into equal divisions and proportionate divisions.
2.3.0 Press-on/Transfer, Computerized Letters
2.3.1 Discuss the use of press-on and computerized letters in landscape drawings.
a. Observe how the use of press-on letters improves drawing quality of designs and shortens drafting time.
b. Explain the point system of sizing press-on and computerized letters.
c. Identify various styles of press-on and computerized letters.
3.0 DRAWINGS USED IN LANDSCAPE DESIGN
3.1.0 General Plans
3.1.1 Produce at least one finished print of a general plan including all necessary parts of plan views, labeling, and symbols. Also, explain the use of
information given on a general plan.
3.2.0 Planting Plans
3.2.1 Produce at least one finished blueprint of a planting plan including all necessary parts of plan views, all labels, and a plant list. Also:
a. Explain the use of information given on a planting plan and plant list.
b. Use and explain the pros and cons of the following methods most commonly used for labeling planting plans:
1) Full scientific and common names
2) Alphabetical key symbols
3) Graphic symbols for each plant type
3.3.0 Sections and Section-Elevations
3.3.1 Produce a finished print of a section-elevation.  Explain the use and difference of sections and section-elevations.
3.4.0 Perspective Drawings
3.4.1 Explain the difference in one and two point perspectives
3.4.2 Produce a finished print of a one point perspective