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General Principles of Modeling of Information
Engineering Graphics
L. Čiupaila, J. Zemkauskas, R. Žiūrienė
Vilnius Gediminas Technical University
Introduction
The experience showed that application of Engineering Graphics in computer graphics loses any sense because: software is based on mathematical expressions; EG content is a problem solving by graphical methods on a
plane heuristically processing 3D information what is not needed in solving by mathematical form.
So Engineering Graphics has to become Information Engineering Graphics (IEG)
To solve the tasks of IEG it is necessary to have an applied programming system, as only advantages of information technologies at most, because of: possible rational management; automation of formalized stages; automation of text information management.
Action models
GD IGDGeometrical Drawing Information Geometrical Drawing
User
Theory acquisitionand application
Drafting
Drawing analysis
Page setup
Tools preparation
User Drawing
Input of visualization
Formation of
parameters
Results
task analysis
visualization operationsAutomatization of
drawing fields
Visualization
Information submission
Extra information
Drawing parameters
DrawingsystemGraphical
Tools of visualization,arrangement etc.
Analysis
Formation of
Information Engineering Graphics
General IEG Special IEG
Theory
Computertools
Tasks
Essence
Auxiliarymaterial
Solutions
ToolsManagement
Practical
Self-study
Control
IGD
Mod
ellin
g
Vie
w re
ceiv
ing
and
man
agin
g
Civ
il en
gine
erin
gfo
unda
tions
Mac
hine
bui
ldin
g
Elek
troni
cs
Oth
ers
Civ
il en
gine
erin
g
IEG model
IGD (Information Geometrical Drawing) working model
Content IGD
Skill
Facilities
Practical useDrawing elements
Drawing structure
Fulfilment technology
Civ
il e
ngin
eeri
ng Civil construction
Ferro-concrete
Metal
Wooden
Solutions
Plans Sections Facades
Con
stru
ctio
ns
Flo
or
Roo
fF
ound
atio
n
Oth
ers
Tra
nsve
rse
Lon
gitu
dina
l
Fro
nt
Sid
e
Bac
k
Information civil engineering drawing model
Drawing structure
Drawing structureDrawing field
View groupsModel space
Paper space
Layers
Line types
Colors Axe
s
Con
tour
Tex
t
Dim
ensi
ons
View types
Sym
met
rica
l
Com
mon
type
Mul
tiele
men
tical
Irre
gula
r
Working technique
Fulfilment technologyF
orm
atin
g
Lay
er
man
agin
g
Com
man
dap
plic
atio
n Visualization
Transformation
Modifying
Graphics projections
Model of formation of projections with sectional views
3D model
Projection
Main view
Supplementaryview
1/2 projection
Projectionwith Section
Section
1/2
sect
ion
Working tools
Drawing field Modelling 3D operations Projections Drafting Various Help Windows Units
Draw Modify
Drawing field formation
Command line
ZoomOsnap
Extra helpful things
The scheme of TAIGRASI computer tools
Drawing elements and visualization D
raw
ing
ele
men
ts
Lines
Text
Dimensions groups
Graphical symbols
Features
TAIGRASI Surface generation possibilitiesadapted for educational purposes
TAIGRASI Solid generation possibilities adapted for educational purposes
Surface development in TAIGRASI
T1
T2a)
b)
c) d)
Intersection of surfaces in TAIGRASI
a) Traditional method; b, c) TAIGRASI visualization
Intersection of surfaces
a, b) Traditional method; c) TAIGRASI visualization
Projection making techniques
Automatization technique
Graphs distinctions
GD IGD
IGD (Information Geometrical Drawing) possibilities
Area – 3328Perimeter – 300Center X – 10Center Y – 26Moment of inertia X – 33363142Moment of inertia Y – 2028319Moment of inertia XY – 1642316Radii of inertia X – 32Radii of inertia Y – 25Central moment X – 529947Central moment Y – 2196959
Tools for building plans visualization
Visualization tools for facade and plan elements
Visualization of ferro-concrete contructions
Conclucions Computer possibilities can be completely used only going over from
command management to process management. It requires to change graphics content which would allow not to draw but get necessary information by using intelligence of hardware. That is why the term of the title “information” is not advertising but essential one which reflects absolutely different IEG possibilities.
Especial role fall to software which should be adapted for solution of proper tasks, so formalization of pending tasks and modelling of proper tools are necessary;
The core of computer-aided graphical file (drawing) becomes not a view, but management of the object which is represented in a drawing;
IEG element structure is unique, its intellectual level is limited and can not be very high, so even in information surrounding the essential role falls to user.
TAIGRASI software http://www.vtu.lt/fakultetai/fmf/igk/