mesh2heightfield

Converts a mesh file into a projected 2D image given from a normal direction N and from a starting point P.

The 3D mesh is discretized and scanned in the normal direction N, starting from P with a step 1.

Usage: mesh2heightfield [input] [output]

Allowed options are:

ositionals:
  1 TEXT:FILE REQUIRED                  mesh file (.off)
  2 TEXT=result.pgm                     sequence of discrete point file (.sdp) 
 
Options:
  -h,--help                             Print this help message and exit
  -i,--input TEXT:FILE REQUIRED         mesh file (.off)
  -o,--output TEXT=result.pgm           sequence of discrete point file (.sdp) 
  -s,--meshScale FLOAT                  change the default mesh scale (each vertex multiplied by the scale) 
  --heightFieldMaxScan INT=255          set the maximal scan deep.
  -x,--centerX INT=0                    choose x center of the projected image.
  -y,--centerY INT=0                    choose y center of the projected image.
  -z,--centerZ INT=1                    choose z center of the projected image.
  --nx FLOAT=0                          set the x component of the projection direction.
  --ny FLOAT=0                          set the y component of the projection direction.
  --nz FLOAT=1                          set the z component of the projection direction.
  --width UINT=100                      set the width of the area to be extracted as an height field image.
  --height UINT=100                     set the height of the area to extracted  as an height field image.
  --orientAutoFrontX                    automatically orients the camera in front according the x axis.
  --orientAutoFrontY                    automatically orients the camera in front according the y axis.
  --orientAutoFrontZ                    automatically orients the camera in front according the z axis.
  --orientBack                          change the camera direction to back instead front as given in  orientAutoFront{X,Y,Z} options.
  --exportNormals                       export mesh normal vectors (given in the image height field basis).
  --backgroundNormalBack                set the normals of background in camera opposite direction (to obtain a black background in rendering).
  --setBackgroundLastDepth              change the default background (black with the last filled intensity).

Example:

$ mesh2heightfield -i ${DGtal}/examples/samples/tref.off --orientAutoFrontZ --width 25 --height 25 -o heighfield.pgm -s 10  

You will obtain such image:

Resulting heightfield.

See also

mesh2heightfield.cpp