Presentation
On
Database Management In AutoCAD
18-06-2014
By
Mohammed Yasar (206726)
Otto-Von Guericke Universitat
Magdeburg
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Overview
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Introduction
What is AutoCAD
Operating System
Database Management In AutoCAD
File Formats
Integration With Other Systems
Database Connectivity
Advantages and disadvantages
References
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Database Management for Engineering Applications
INTRODUCTION
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What is AutoCAD?
• AutoCAD is a software for editing technical drawings
as vector graphics in 2D and 3D.
• Vector-based drawing program on simple objects
such as lines, polylines, circles arcs and texts.
• It was developed in December 1982.
• Mainly it was a simple CAD program with
programming interfaces for creating technical
drawings.
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• It has a total of 29 versions since its release.
Operating System
• AutoCAD run under MS-DOS and was also on UNIX
and Apple Macintosh.
• Since its release of first version in 1982 it was
supported by only Microsoft Windows.
• Then from oct.15 2010 AutoCAD for Mac.os x was
also available.
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DATABASE MANAGEMENT IN AUTOCAD
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How data is managed in AutoCAD?
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Most of the Database contains the information for
reproducing which you have already drawn.
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Can add information that is non-graphical.
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One of the easiest ways for adding information is to
use attributes.
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An attribute is text that can be attached to a block
that conveys more information than geometry on its
own could convey.
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Fig 1 : couch 1
Fig2: couch 2
source : MYCADSITE
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File Formats in AutoCAD
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Every file in a computer is created as a particular
type or format.
DRAWING1.DWG
DRAWING1
DWG
Name of the
file
Extension
Fig3: file Format Example
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While working with AutoCAD, it is important to know that
there are several types of drawing files
DWG – BAK – DWT – DWF – SV$ - DXF – WMF – 3DS – JPG
1. DWG : Standard drawing file format.
2. BAK : Backup file format.
3. DWT : New file format used for drawing templates.
4. DWF: Used when you want to create a drawing used on the
internet or otherwise not editable.
5. SV$: Used when creating automatic save.
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6. DXF: Not really an AutoCAD format but industry
standard, Drawing exchange format.
7. WMF: Windows meta file, can be used for non-CAD
programs.
8. 3DS: Older extension for 3D studio max, a high level
animation and rendering program.
9. JPG: Common file format on the internet for images.
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Integration With Other Systems
• AutoCAD is often used with additional software that
comes with predefined symbols, macros used and
calculation functions for fast creation of engineering
drawing.
• The software is programmed in C++ and has several
programming interfaces.
• AutoCAD LT
• AutoCAD mechanical
• AutoCAD architecture
• AutoCAD MEP
• AutoCAD map 3D
• AutoCAD structural detailing
• AutoCAD utility design
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• Establish connection between two applications.
• Integration and interfacing are the main tools for
management of data.
• Primary thing is to pass data through files.
• Interfacing is writing a file that can be read by another
application.
• Integration is often a matter of creating a program to
convert one file format to another for processing.
• Object level interfacing is the better solution.
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Database Connectivity
• Powerful way to link drawing objects with data.
• More flexible than using block attributes.
• Need to keep drawings and databases synchronized
for accuracy.
• Linking of databases and AutoCAD drawing is
referred to as external database access.
• It enables you to
a) Create links between AutoCAD drawing objects and
the external data.
b) View data in external databases.
c) Edit data in external databases.
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d) Display external database data in your drawing.
Databases involved in database connectivity feature:
i. Microsoft access
ii. dBASE
iii. Microsoft Excel
iv. Oracle
v. Paradox
vi. Microsoft visual FoxPro
vii. SQL server
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• A Database is a set of related information.
Part no.
description
dwg size
Made/pur
chased
unit
8665023-012
Welding
wire-o.030
stainlessB
B
P
FT
8665023-013
Weld rod0.045 Dia
stainless
steel
B
P
FT
86650230014
Welding-rod
0.045 Dia S.S
B
P
FT
Fig4. Simple database table
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Structured Query language (SQL) was created to provide
users with a database language that would be applicable
across multiple platforms.
1) Environment: It is the entire database system
2) Catalog: Collection of Schemas
3) Schema: is a set of tables and other database
components.
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Preparing for database connectivity
• Make sure that you have the ODBC data source
program from Microsoft.
• Arrange database tables into catalogs(folders) and
schemas(subfolders) appropriate for the application.
• Configure the data source from within AutoCAD.
• Start the dB CONNECT manager
• Establish a user access name and password.
• Connect to your data source.
• Open the data view window containing your data
table.
• Edit the data, if desired.
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Connecting to the database
• If the data is to be in one database with many tables
or in several separate databases.
• Which data to be linked to which drawing objects.
• Several drawing objects will be linked to one row or
one object will be linked to a row.
• Drawing object linked to more than one row.
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Connecting a database to a drawing
• Use dbCONNECT manager to
perform all the connectivity
functions.
• It will display a list of open
drawings and configured data
sources.
• AutoCAD lists the database
tables associated with the data
source.
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Advantages
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Reduction of redundancies
Elimination of inconsistencies
Shared data
Integrity
Security
Conflict resolution
Data independence
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Disadvantages
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Cost of software/hardware and migration
Problems associated with centralization
Complexity of backup and recovery
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References
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AutoCAD 2011 & AutoCAD LT 2011(Bible)
www.wikipedia.com
www.Mycadsite.com
www.cadalyst.com
www.bcanotes.com
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THANK YOU FOR YOUR ATTENTION
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Question
Which is your favourite drawing you
want to draw using AutoCAD?
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