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Lecture notes

Les intersections

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A partir d'éléments connu et observé sur le terrain il est possible de déterminer la position planimétrique d'un ou plusieurs point par l'intersection de lieu géométrique. C'est un procédé courant lorsqu'il s'agit de déterminer des points inaccessible en levé de détail.

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Uploaded on
September 4, 2025
Number of pages
3
Written in
2022/2023
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Lecture notes
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Mme smiglio
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Les intersections
mardi 11 octobre 2022 10:40



I. Principe

A partir d'éléments connu et observé sur le terrain il est possible de déterminer la position planimétrique d'un ou plusieurs point par l'intersection de lieu
géométrique. C'est un procédé courant lorsqu'il s'agit de déterminer des points inaccessible en levé de détail.

II. Intersection droite/droite

Données :
A=

B=


On cherche : S=



Solution numérique :




1. dAB

Â=


2. Calcul de dAS Dans ABS


Es = Ea + dAS x sin ( )
Ns = Na + dAS x cos ( )

Contrôle :

Es = Eb + dBS x sin ( )
Ns = Nb + dBS x cos ( )

III. Intersection droite / cercle


Données:
A=

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