What does c 15 15 mean in architectural CAD?

In architectural CAD, c 15 15 means window width 1.5M and window height1.5m..

CAD mainly includes interactive technology, graphic conversion technology, surface modeling and solid modeling technology.

In computer aided design, interactive technology is essential. Interactive CAD system means that when users design with computer system, people and machines can exchange information in time. With the interactive system, people can conceive, sample and modify at the same time, and the display results of each step can be seen from the screen of the graphic terminal at any time, which is very intuitive.

The main function of graphic conversion is to connect the user coordinate system and the graphic output device coordinate system; Translation, rotation, scaling and perspective transformation of graphics; Graphic transformation is realized by matrix operation.

Computer design automation Computer-built CAD aims to realize the automation or semi-automation of computer-built design and development process. The research contents include functional design automation and assembly design automation, involving computer hardware description language, system-level simulation, automatic logic synthesis, logic simulation, microprogram automation, automatic logic division, automatic layout and wiring, and the corresponding interactive graphics system and engineering database system. Integrated circuit CAD is sometimes included in the scope of computer design automation.

Extended information A complete set of architectural drawings, generally including:

(1) Drawing Log

It includes name, content, drawing number, etc. For each drawing, indicate which professional drawings and which mantis drawings are combined into engineering drawings for easy retrieval and search.

(2) Design overview

Mainly explain the general situation and overall requirements of the project. The contents shall generally include:

1) Design basis (such as planning restrictions, design scale, building area and relevant geological and meteorological data, etc. ).

2) Design standards (such as building standards, structural load levels, seismic requirements, etc.). ).

3) Construction requirements (such as the adoption of new technologies and materials or the construction technology, material requirements and process description of special construction).

For simple projects, the above contents can also be written in various professional drawings.

(3) Construction drawings

It includes general plan, plan, elevation, section and structural details. Indicates the internal layout, external modeling, decoration, structure and structural requirements of the building.

(4) Structural construction drawing

It includes the layout of the structure and the structural details of each component. Represents the layout, component type, size and construction method of load-bearing structure.

Baidu encyclopedia -CAD

Baidu Encyclopedia-Architectural Drawing