GEOMETRIA DESCRITIVA – UNIDADE 01 - .11 GEOMETRIA DESCRITIVA – UNIDADE 04 POSIÇÃO RELATIVA

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Text of GEOMETRIA DESCRITIVA – UNIDADE 01 - .11 GEOMETRIA DESCRITIVA – UNIDADE 04 POSIÇÃO RELATIVA

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    GEOMETRIA DESCRITIVA UNIDADE 01

    GEOMETRIA DESCRITIVA

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    PLANO DE PROJEO

    PHA ( ) _______________________ PHP ( ) _______________________ I DIEDRO: _____________________ PVS ( ) _______________________ II DIEDRO: ____________________ PVI ( ) ________________________ III DIEDRO: ____________________

    LT ( ) ______________________ IV DIEDRO: ____________________

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    GEOMETRIA DESCRITIVA UNIDADE 01

    Linha Terra ( LT ) _______________________________________________________

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    ngulo Diedro __________________________________________________________

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    PURA

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    PLANIFICAO DO SISTEMA

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    GEOMETRIA DESCRITIVA UNIDADE 02

    ESTUDO DO PONTO Um ponto pode ser representado por suas coordenadas descritas. A (X, Y, Z) sendo: X - ______________________________ Y - ______________________________ Z - ______________________________ ABISCISSA: ______________________________________________________________________

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    AFASTAMENTO:

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    COTA:

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    POSIES DE UM PONTO:

    Exerccios: A (3,2,3) B (2,2,3) C (2,0,2) D (0,2,1) E (2,0,0) F (2,2,0)

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    GEOMETRIA DESCRITIVA UNIDADE 03

    ESTUDO DA RETA ______________________________________________________________________________

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    REPRESENTAO DA RETA

    Exerccios:

    1) A (3,2,3)

    B (2,2,3)

    2) C (2,2,3)

    D (2,1,3)

    3) E (3,2,3)

    F (1,4,3)

    4) G (2,3,2)

    H (2,3,3)

    5) I (4,2,3)

    J (2,2,4)

    6) L (3,3,1)

    M (3,1,3)

    Representao Plana

    Representao Espacial

    Representao em pura

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    GEOMETRIA DESCRITIVA UNIDADE 03

    POSIES DA RETA - Em relao a um plano: __________________________________________________________________________________________________________________________________________________________

    A) _____________________________________________________________________ B) _____________________________________________________________________ C) _____________________________________________________________________

    - Em relao aos planos de projeo: __________________________________________________________________________________________________________________________________________________________

    1- Fronto-horizontal 2- Reta horizontal (Reta de nvel) 3- Reta frontal ou Reta de frente 4- Reta de topo 5- Reta vertical 6- Reta de perfil 7- Reta oblqua (Reta genrica ou Reta qualquer)

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    1- Fronto-horizontal ou reta paralela linha de terra

    Caractersticas: ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Representao em pura: A (4,2,3) B (1,2,3)

    Trao de uma reta: _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

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    2- Reta Horizontal (Reta de nvel)

    Caractersticas: ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

    Representao espacial e em pura: A (4,1,2) B (1,4,2)

    3- Reta frontal ou reta de frente

    Caractersticas: ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

    Representao espacial e em pura: A (4,2,1) B (1,2,4)

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    4- Reta de topo

    Caractersticas: ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

    Representao em pura: A (3,1,2) B (3,4,2)

    5- Reta vertical

    Caractersticas: ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

    Representao em pura: A (3,2,1) B (3,2,4)

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    6- Reta de perfil

    Caractersticas: _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________ Representao em pura: A (3,4,1) B (3,1,4) A (3,1,3) B (3,4,4)

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    7- Reta oblqua (reta genrica ou reta qualquer)

    Caractersticas: _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________ Representao em pura: A (3,2,1) B (4,1,3)

    RESUMO

    Representao da reta em pura, no I DIEDRO

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    GEOMETRIA DESCRITIVA UNIDADE 04

    POSIO RELATIVA DE DUAS RETAS

    Duas retas no espao podem ser: 1) Retas Coplanares: paralelas e concorrentes. 2) Retas no-coplanares: reversas e reversas ortogonais. RETAS PARALELAS Duas retas so paralelas quando satisfazem as seguintes condies. 1- Quando as projees do mesmo nome se apresentam paralelas.

    A (4,3,3) B (1,1,1) C (4,2,4) D (1,0,2) 2-Quando as projees do mesmo nome so paralelas em um plano e coincidentes em outro.

    A (4,4,4) B (1,1,1) C (4,4,3) D (1,1,0)

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    3-Quando as projees do mes