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:

-h [ --help ]                   display this message
-i [ --input ] arg              mesh file (.off) 
-s [ --meshScale ] arg (=1)     change the default mesh scale (each vertex 
                                multiplied by the scale) 
-o [ --output ] arg             sequence of discrete point file (.sdp) 
--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.
--nx arg (=0)                   set the x component of the projection 
                                direction.
--ny arg (=0)                   set the y component of the projection 
                                direction.
--nz arg (=1)                   set the z component of the projection 
                                direction.
-x [ --centerX ] arg (=0)       choose x center of the projected image.
-y [ --centerY ] arg (=0)       choose y center of the projected image.
-z [ --centerZ ] arg (=1)       choose z center of the projected image.
--width arg (=100)              set the width of the area to be extracted as 
                                an height field image.
--height arg (=100)             set the height of the area to extracted  as 
                                an height field image.
--heightFieldMaxScan arg (=255) set the maximal scan deep.
--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