57
What is the smallest amount of rotation permitted?
58
How is RAM allocated between the program and the drawing data?
59
The drawing/model size is limited by:
60
What measuring units can data be entered in? What units can data be stored in?
TOOLS
61
Which of the following can be selected or toggled as a
snap mode
, and which must be
specified every time it is needed?
62
Does the system take advantage of specialized processors?
-1
q
objects can not be rotated
-2
q
90°
-3
q
<30°
-4
q
<1°
-5
q
<1/10°
-6
q
<1/60° (0°1)
-7
q
<1/1,000°
-8
q
<1/3,600° (0°01")
-9
q
<1/10,000°
-10
q
<1/100,000°
-1
q
program is loaded in RAM in its entirety
-2
q
program has modules shuttled in and out of RAM
-3
q
data
(drawing or model)
must fit in memory
(RAM + pagefile)
-4
q
data
(drawing or model)
can be larger than memory
(RAM +
pagefile)
and pages to disk on overflow
-5
q
data
(drawing or model)
can be selectively loaded into memory
based on search criteria
(e.g., by area)
-6
q
data
(drawing or model)
resides primarily on disk and is loaded
into memory as needed, not based on search criteria
-7
q
uses OSs virtual memory
-8
q
program includes virtual memory
(non-OS)
-9
q
for DOS systems: uses expanded or extended memory
-10
q
can reduce memory needed by data
-11
q
other ____________________________________________
-1
q
# of entities in a drawing or model is limited to a
maximum of: _____________________________
-2
q
limited work area __________________________
-3
q
size limited to available RAM
-4
q
size limited by available swap space
-5
q
size limited only by response time
-6
q
size constraints can be circumvented with use of assemblies
-7
q
size only limited by available disk space
-8
q
other constraints _________________________________
mode
for each point, must be specified every time
q
intersection of lines
1
q
q
intersection of arcs/circles/...
2
q
q
perpendicular to a line
3
q
q
perpendicular to an arc/circle/...
4
q
q
tangent to an arc/circle/...
5
q
q
tangent to multiple arcs/circles/...
6
q
q
combinations of above
7
q
system can scroll through potential snap points
8
q
system can infer which snap is desired
9
q
Can use
Requires
-1
q
Display List Processing
-2
q
other graphics coprocessors: ____________________
-3
q
standard math coprocessor
(like 80x87, or 68882)
-4
q
can use other specialized processors__________________
-5
q
other_______________________________________
-6
q
Display List Processor
-7
q
other graphics coprocessors: ____________________
-8
q
standard math co-processor: ____________________
-9
q
other specialized processor: ____________________
-10
q
specialized workstation
(e.g., 5081/5086, et.al.)
Data Entry
Stored
Coordinate Systems
q
deg-min-sec
1
q
q
decimal degrees
2
q
q
distance and bearing
3
q
q
ft-in-fraction
4
q
q
metric
(meters, grams, cubic centimeters, etc.)
5
q
q
American Imperial
(feet, pounds, gallons, etc.)
6
q
q
mixed metric and American Imperial
7
q
-1
q
absolute rectangular
-2
q
absolute polar
-3
q
relative rectangular
-4
q
relative polar
-5
q
supports a variety of cartographic projections
©C
opy
righ
t
1
990
,
1
991
,
1
9
9
2
,
19
93,
19
94
,
199
6
W
BH
AS
SOC
IATE
S
The CAD Rating Guide
Page 9
Vendor Survey for the Fifth Edition
April 1996
WBH Associates
8220 Stone Trail Drive
301-365-5262 / 301-365-4586 fax
Bethesda, MD 20817-4556
74777.3073@compuserve.com
