大洪水 发表于 2025-3-25 05:50:00

Representation of curves,aight line segments in Chapter 2. Shapes with lines and circular arcs are familiar and easily defined. They are straightforward to produce manually by turning, by numerically controlled (NC) milling machines and so on.

Medicare 发表于 2025-3-25 11:13:10

Introduction to surface and solid modelling, in which such objects can be held within a computer system and in this chapter we review some of the current approaches and try to indicate some of the underlying techniques. These are often extensions of ideas that have been discussed in previous chapters.

形上升才刺激 发表于 2025-3-25 14:03:13

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引水渠 发表于 2025-3-25 16:29:19

Nachhaltig erfolgreiches E-Marketings the building up of component shapes out of simpler volumetric forms or primitives. These primitive shapes include such entities as (truncated) cones and rectangular blocks. The general forms of these are predetermined but they possess parameters which the user can define to create the types of shape that are required.

听写 发表于 2025-3-26 00:02:45

MODCON: an example system,s the building up of component shapes out of simpler volumetric forms or primitives. These primitive shapes include such entities as (truncated) cones and rectangular blocks. The general forms of these are predetermined but they possess parameters which the user can define to create the types of shape that are required.

chondromalacia 发表于 2025-3-26 00:50:34

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ALLEY 发表于 2025-3-26 08:16:20

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INERT 发表于 2025-3-26 10:44:41

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固定某物 发表于 2025-3-26 12:39:36

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DEMUR 发表于 2025-3-26 19:15:25

Intersection of curves,em requires the presence of commands that find the intersection of specified geometric entities. The trimming is easily accomplished by redefining an end of each entity to be the calculated point of intersection and then removing the unwanted parts from the display (possibly by redrawing it).
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查看完整版本: Titlebook: CAD: Computational Concepts and Methods; computational concep Glen Mullineux Book 1986 Glen Mullineux 1986 CAD.Division.algorithms.computat