City position coordinate marking method and house number plate marking structure

City position coordinate marking method and house number plate marking structure

CN
  • CN 1,707,564 A
  • Filed: 04/28/2005
  • Published: 12/14/2005
  • Est. Priority Date: 04/28/2005
  • Status: Active Application
First Claim
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1. , city position coordinate marking method, it is characterized in that:

  • with the plane, city as two-dimensional space, the in-plane coordinate is a plane coordinate system, choosing is a coordinate origin a bit in this plane, city, naturally the east-west direction straight line that the eastern directional ray of initial point and western directional ray are formed is a transverse axis, form and be the longitudinal axis with the southern naturally directional ray of initial point and northern directional ray perpendicular to the North and South direction line of transverse axis, and setting unit length, measure in the plane, city each point then to X direction line vertical point reading, measure each point again to y direction line vertical point reading, perform record, obtain the air line distance on 2 on plane, city at last according to following formulaZ=

    {(X 1+/-X 2) 2+(Y 1+/-Y 2) 2} 0.5Wherein Z is the air line distance of arbitrary 2 A and B in the plane, city, X 1And X 2Be respectively the lateral coordinates value of an A and some B, Y 1And Y 2Be respectively the along slope coordinate value of an A and some B, and some B is horizontal or longitudinal direction is identical for+expression point A, an expression point A and to put B horizontal or longitudinal direction is opposite.

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