Automatic Conversion of Mechanical Engineering Drawings to CAD Data.

Interpretation of Mechanical Engineering Drawings for Paper-CAD Conversion

Pascal VauivGre Kar l Tombre ESSTIN INRIA Lorraine C R I N P a r c Rober t Bentz Campus scientifique, B.P. 239 54500 Vandceuvre 54506 Vandmuvre CEDEX France France tornbre@loria. crin..fr Abstract electronics diagrams, in mechanical enginecring the This paper prrsents an interpretation system for mechanical enginrering drawings. After vectorizaslightest error actually increases the operator's work

Automated Conversion of Mechanical Engineering Drawings to CAD Models: Too many Problems?

The state of the art of today's drawing conversion systems is described. It reveals a cons~derable amount of interactive assistance especially on complex pattern recognition and interpretation tasks. The difficulties and the major problems are picked up and reasons and solution approaches are stated.

Analysis of Dimension in Mechanical Engineering Drawings

Many paper engineering drawings are still in use and there is a demand for reliable means of transforming them into digital information and incorporating them into a CAD (Computer Aided Design) system. To be efficiently used, paper engineering drawings dimensions must be analysed allowing for example 3D model interpretation. We describe the two majors parts of our system: vectorization and dime...

Spatial data structures for version management of engineering drawings in CAD database

In the engineering database system, multiple versions of a design including engineering drawings should be managed efficiently. The paper proposes an extended spatial data structure for efficient management of multiversion engineering drawings. The R-tree is adapted as a basic data structure. The efficient mechanism to manage the difference between drawings is introduced to the R-tree to elimin...

ANNEXTURE 1 CAD Drawings