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  2. Architectural drawing - Wikipedia

    en.wikipedia.org/wiki/Architectural_drawing

    An architectural drawing or architect's drawing is a technical drawing of a building (or building project) that falls within the definition of architecture.Architectural drawings are used by architects and others for a number of purposes: to develop a design idea into a coherent proposal, to communicate ideas and concepts, to convince clients of the merits of a design, to assist a building ...

  3. Octagon house - Wikipedia

    en.wikipedia.org/wiki/Octagon_house

    The central spiral stair is compact, but leaves one side of the house without direct access to the landings, so there are bedrooms only accessible through another bedroom - in the worst case, through two other bedrooms. Fowler's own house had external staircases and the verandas were used for circulation and access to the rooms. [citation needed]

  4. List of ancient spiral stairs - Wikipedia

    en.wikipedia.org/wiki/List_of_ancient_spiral_stairs

    The spiral stair is a type of stairway which, due to its complex helical structure, has been introduced relatively late into architecture. Although the oldest example dates back to the 5th century BC, [ 1 ] it was only in the wake of the influential design of the Trajan's Column that this space-saving new type permanently caught hold in ancient ...

  5. Multiview orthographic projection - Wikipedia

    en.wikipedia.org/wiki/Multiview_orthographic...

    A developed elevation is a variant of a regular elevation view in which several adjacent non-parallel sides may be shown together as if they have been unfolded. For example, the north and west views may be shown side-by-side, sharing an edge, even though this does not represent a proper orthographic projection.

  6. Hyperbolic spiral - Wikipedia

    en.wikipedia.org/wiki/Hyperbolic_spiral

    A spiral staircase in the Cathedral of St. John the Divine.Several helical curves in the staircase project to hyperbolic spirals in its photograph.. A hyperbolic spiral is a type of spiral with a pitch angle that increases with distance from its center, unlike the constant angles of logarithmic spirals or decreasing angles of Archimedean spirals.

  7. Axonometric projection - Wikipedia

    en.wikipedia.org/wiki/Axonometric_projection

    In isometric projection, the most commonly used form of axonometric projection in engineering drawing, [4] the direction of viewing is such that the three axes of space appear equally foreshortened, and there is a common angle of 120° between them. As the distortion caused by foreshortening is uniform, the proportionality between lengths is ...

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