// ************************************************************** // ************************************************************** // *********** netcdf configuration file for SIG program ******* // *********** Version 1.0 ******* // ************************************************************** // ************************************************************** // ************************************************************** // ** EUROPIV II Project ** // ** Synthetic Image Generator ** // ** Feb. 2001 ** // ************************************************************** // ** Bertrand Lecordier : Bertrand.Lecordier@coria.fr ** // ** Jerry Westerweel : j.westerweel@wbmt.tudelft.nl ** // *************************************************************/ netcdf sig_conf { dimensions: d_chaine = unlimited; //********************************************* //************************Variables *********** //********************************************* variables: int p_dimX; p_dimX:valid_min = 1; p_dimX:valid_max = 4096; p_dimX:units = "pixel"; p_dimX:long_name = "main image width"; int p_dimY; p_dimY:valid_min = 1; p_dimY:valid_max = 4096; p_dimY:units = "pixel"; p_dimY:long_name = "main image height"; int p_dimL; p_dimL:valid_min = 0; p_dimL:valid_max = 1024; p_dimL:units = "pixel"; p_dimL:long_name = "left strip"; int p_dimR; p_dimR:valid_min = 0; p_dimR:valid_max = 1024; p_dimR:units = "pixel"; p_dimR:long_name = "right strip"; int p_dimT; p_dimT:valid_min = 0; p_dimT:valid_max = 1024; p_dimT:units = "pixel"; p_dimT:long_name = "top strip"; int p_dimB; p_dimB:valid_min = 0; p_dimB:valid_max = 1024; p_dimB:units = "pixel"; p_dimB:long_name = "bottom strip"; char periodic_flag(d_chaine); //********************************************* //********************************************* // Particle field dimension (real space) // r_[x,y,z]min, r_[x,y,z]max defined the region of interest // into the particle field - the particle field can be largeur // // The magnification factor is obtained from // Gx = (r_xmax-r_xmin)/p_dimX (real/pixel) // Gy = (r_ymax-r_ymin)/p_dimY (real/pixel) // Important : Gx and Gy can be different // ******* X axis ************************** double r_xmin; r_xmin:units = "real"; r_xmin:long_name = "x minimum"; double r_xmax; r_xmax:units = "real"; r_xmax:long_name = "x maximum"; // ******* Y axis ************************** double r_ymin; r_ymin:units = "real"; r_ymin:long_name = "y minimum"; double r_ymax; r_ymax:units = "real"; r_ymax:long_name = "y maximum"; // ******* Z axis *************************** // ** for the 2D particle (x,y), used the same value for // ** r_zmin, r_zmin and sheet_rpos_z double r_zmin; r_zmin:units = "real"; r_zmin:long_name = "z minimum"; double r_zmax; r_zmax:units = "real"; r_zmax:long_name = "z maximum"; // **************************************** // **************************************** // Light sheet information // **************************************** // **************************************** char lsheet_type(d_chaine); lsheet_type:long_name = "type of light sheet"; // possible values : // uniform // gaussian // triangle // cosine // squarecosine // location in the real domain of the center // of laser sheet (perpendicular to the z axis) double lsheet_rpos_z; lsheet_rpos_z:units = "real"; lsheet_rpos_z:long_name = "z location of light sheet"; double lsheet_rthickness; lsheet_rthickness:valid_min = 0.0; lsheet_rthickness:units = "real"; lsheet_rthickness:long_name = "light sheet thickness"; double lsheet_wave_length; lsheet_wave_length:valid_min = 0.0; lsheet_wave_length:units = "real"; lsheet_wave_length:long_name = "laser wave length"; // ************************************************ // ************* Particle distribution ************ // ************************************************ char part_distribution(d_chaine); // Possible alternative // uniform : constant diameter equal to part_mean_diam // // gaussian: gaussian distribution for the particle diameter // mean diameter : part_mean_diam // std diameter : part_std_diam double part_min_diam; part_min_diam:valid_min = 0.0; part_min_diam:long_name = "minimum particle diameter"; double part_max_diam; part_max_diam:valid_min = 0.0; part_max_diam:valid_max = 10.0; part_max_diam:long_name = "maximum particle diameter"; double part_mean_diam; part_mean_diam:long_name= "mean particle diamete"; double part_std_diam; part_std_diam:long_name= "std. of distribution of particle diameter"; // ***************************************************** // ************ image pattern information ************** // ***************************************************** char pattern_type(d_chaine); // possible values // gaussian : gaussian particle shape // circle : circle particle shape // rectangle: rectangle particle shape double pattern_meanx; pattern_meanx:valid_min = 0.0; pattern_meanx:long_name = "pattern size for the part_meanx_diam"; double pattern_meany; pattern_meany:valid_min = 0.0; pattern_meany:long_name = "pattern size for the part_meany_diam"; // ************************************************ // ************ Projection information ************ // ************************************************ char projection_type(d_chaine); // possible values // normal : Normal projection without effect of particle motion along z // znormal : Normal projection with effect of particule motion along z // angular : Angular projection for stereo PIV double projection_angle; // For angular projection projection_angle:valid_min = 0.0; projection_angle:valid_max = 360; projection_angle:long_name = "Angle of view"; double projection_tilt_angle; // For angular projection projection_tilt_angle:valid_min = 0.0; projection_tilt_angle:valid_max = 360; projection_tilt_angle:long_name = "Tilt angle"; // ************************************************ // ************* CCD information ************ // ************************************************ // Pixel active area size : ccd_fill_ratio_x*ccd_fill_ratio_y double ccd_fill_ratio_x; ccd_fill_ratio_x:valid_min = 0.0; ccd_fill_ratio_x:valid_max = 1.0; ccd_fill_ratio_x:long_name = "X CCD fill ration"; double ccd_fill_ratio_y; ccd_fill_ratio_y:valid_min = 0.0; ccd_fill_ratio_y:valid_max = 1.0; ccd_fill_ratio_y:long_name = "Y CCD fill ration"; double ccd_saturation_level; ccd_saturation_level:valid_min = 0.0; ccd_saturation_level:valid_max = 1.0; ccd_saturation_level:long_name = "saturation level"; //****** Initial background information *******/ char ccd_background_type(d_chaine); // Possible alternative // uniform : uniform background with // level ccd_background_mean_level // gaussian: gaussian noise with a mean value // equal to ccd_background_mean_level // and a std. equal to ccd_background_std_noise double ccd_background_mean_level; ccd_background_mean_level:valid_min = 0; ccd_background_mean_level:long_name = "mean initial background level"; double ccd_background_std_noise; ccd_background_std_noise:valid_min = 0; ccd_background_std_noise:long_name = "std. noise for initial background"; double ccd_pixel_horizontal_pitch; ccd_pixel_horizontal_pitch:valid_min = 0.0; ccd_pixel_horizontal_pitch:units = "pixel/real"; ccd_pixel_horizontal_pitch:long_name = "horizontal pixel pitch"; double ccd_pixel_vertical_pitch; ccd_pixel_vertical_pitch:valid_min = 0.0; ccd_pixel_vertical_pitch:units = "pixel/real"; ccd_pixel_vertical_pitch:long_name = "vertical pixel pitch"; // ************************************************* // **********optics information ******************** // ************************************************* double optic_object_distance; optic_object_distance:long_name = "object distance"; double optic_image_distance; optic_image_distance:long_name = "image distance"; double optic_aperture; optic_aperture:valid_min = 1.; optic_aperture:long_name = "optic aperture"; double optic_magnification; optic_magnification:valid_min = 0.0; optic_magnification:long_name = "optic magnification"; // ************************************************ // ** initial seed numbers for the random generator // ************************************************ int seed_number1; seed_number1:valid_min = 0; seed_number1:valid_max = 30000; seed_number1:long_name = "seed number 1"; int seed_number2; seed_number2:valid_min = 0; seed_number2:valid_max = 30000; seed_number2:long_name = "seed number 2"; int seed_number3; seed_number3:valid_min = 0; seed_number3:valid_max = 30000; seed_number3:long_name = "seed number 3"; data: p_dimX = 2048 ; p_dimY = 2048 ; p_dimL = 0 ; p_dimR = 0 ; p_dimT = 0 ; p_dimB = 0 ; periodic_flag = "no_periodic" ; r_xmin = 0 ; r_xmax = 150; r_ymin = -150 ; r_ymax = 0 ; r_zmin = -0.6 ; r_zmax = 0.6 ; lsheet_type = "uniform" ; lsheet_rpos_z = 0 ; lsheet_rthickness = 1.2 ; lsheet_wave_length = 532e-9 ; part_distribution = "uniform" ; part_min_diam = 0.7 ; part_max_diam = 0.7; part_mean_diam = 0.7 ; part_std_diam = 0; pattern_type = "gaussian" ; pattern_meanx = 1.274; pattern_meany = 1.274 ; projection_type = "normal" ; projection_angle = 0 ; projection_tilt_angle = 0 ; ccd_fill_ratio_x = 1 ; ccd_fill_ratio_y = 1 ; ccd_saturation_level = 1 ; ccd_background_type = "gaussian" ; ccd_background_mean_level = 0 ; ccd_background_std_noise = 0 ; ccd_pixel_horizontal_pitch = 327.68 ; ccd_pixel_vertical_pitch = 327.68 ; optic_object_distance = 5000 ; optic_image_distance = 208.5 ; optic_aperture = 2 ; optic_magnification = 0.0417; seed_number1 = 1 ; seed_number2 = 100 ; seed_number3 = 10000 ; }