V2IMGPLV

General description

• V2IMGPL determines pixel/line location of a landmark in image PICNM.
• Vector to Image Pixel/Line

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  SUBROUTINE V2IMGPL(V,V0,PICNM,NPX,NLN,MMFL,CTR,KMAT,D, CX,CY,CZ, USE,IMGPL)

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•   DOUBLE PRECISION      V(3)
  

  Vector -- body fixed position of the position you want to map onto the image. This is typically coming from the maplet's I and J position converted into vector space. Passed in.

•  DOUBLE PRECISION      V0(3)
  

  Vector -- body fixed position from spacecraft to the body center (i.e. SCOBJ).
  Passed in but usually is read from SUMFILES.

•  CHARACTER*12          PICNM
  

  Image name. This is needed because this subroutine calls GETMM which needs the image name to decide how to apply the distortion matrix. GETMM reads INIT_LITHOS.TXT and looks for the image name structure, typically the first few characters, to decide which INIT_LITHOS.TXT distortion parameter to use. Passed in.

•  INTEGER               NPX
  

•  INTEGER               NLN
  

  Number of pixels and lines for the image.
  Passed in.

•  DOUBLE PRECISION      MMFL
  

Focal Length of the image.
Passed in.

•  DOUBLE PRECISION      CTR(2)
  

  Center of the image's detector.
  Passed in.

•  DOUBLE PRECISION      KMAT(2,3)
  

  Distortion matrix.
  Passed in.

•  DOUBLE PRECISION      D(4)
  

  Distortion parameters. Read in from SUMFILES as DISTORTION if available.

•  DOUBLE PRECISION      CX(3)
  

•  DOUBLE PRECISION      CY(3)
  

•  DOUBLE PRECISION      CZ(3)
  

  Camera's vector.
  Passed in.

•  LOGICAL               USE
  

  Flag that the image covers the maplet.
  Set in this subroutine.

•  DOUBLE PRECISION      IMGPL(2)
  

  This sets IMGPL to be the pixel and line position of V (the passed in vector) within the image. It is in image pixel/line space. Set in this subroutine. This is the main point of this routine

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categorySubroutine