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The National CAD Standard (NCS) is a collaborative effort in the United States among computer-aided design (CAD) and building information modeling (BIM) users. Its goal is to create a unified approach to the creation of building design data.
The basic data is overlaid with graphic styles (e.g. colour shades, hatch patterns) to display information on a more sophisticated level. For example, population density between urban and rural areas may show the cities in deep red (to indicate a high ratio of inhabitants per square mile), while showing remote areas in very pale red (to ...
A man using AutoCAD 2.6 to digitize a drawing of a school building. AutoCAD was derived from a program that began in 1977, and then released in 1979 [5] called Interact CAD, [6] [7] [8] also referred to in early Autodesk documents as MicroCAD, which was written prior to Autodesk's (then Marinchip Software Partners) formation by Autodesk cofounder Michael Riddle.
Hatching (French: hachure) is an artistic technique used to create tonal or shading effects by drawing (or painting or scribing) closely spaced parallel lines.When lines are placed at an angle to one another, it is called cross-hatching.
Form·Z allows design in 3D or in 2D, using numeric or interactive graphic input through either line or smooth shaded drawings ().Modeling features include Boolean solids to generate complex composite objects; the ability to create curved surfaces from splines, including NURBS and Bézier/Coons patches; mechanical and organic forms using the previous as well as metaforms, patches, subdivisions ...
Alibre's products fall into two categories intended for different users and applications. Alibre Design Professional has a basic set of features intended for users to get started with CAD, whereas Alibre Design Expert is a 3D and 2D modeling application suitable or intended for professional use.
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The 7 parts of the ISO 128 standard are: ISO 128-1:2020 Technical product documentation (TPD) — General principles of representation — Part 1: Introduction and fundamental requirements