How do users draw their favorite fish？

[Otoliths]

hi LingDong，

How can users draw their favorite fish, such as tuna, eel？

Maybe a custom JavaScript library can be used for drawing them, how to create and implement a custom JS library.

Thanks

[LingDong-]

Hi!

By design this program is for randomly generated fishes. However with a bit of hacking, you can draw a custom fish, e.g. by directly passing params to the fish() function, importable from fishdraw.js, like so:

const {fish,reframe,cleanup,draw_svg} = require('./fishdraw.js');
let my_params = {
    body_curve_type:0,
    body_curve_amount:0.85,
    body_length:350,
    body_height:90,
    scale_type:1,
    scale_scale:1,
    pattern_type:3,
    pattern_scale:1,
    dorsal_texture_type:1,
    dorsal_type:0,
    dorsal_length:100,
    dorsal_start:8,
    dorsal_end:27,
    wing_texture_type:0,
    wing_type:0,
    wing_start:6,
    wing_end:6,
    wing_y:0.7,
    wing_length:130,
    wing_width:10,
    pelvic_start:9,
    pelvic_end:14,
    pelvic_length:85,
    pelvic_type:0,
    pelvic_texture_type:0,
    anal_start:19,
    anal_end:29,
    anal_length:50,
    anal_type:0,
    anal_texture_type:0,
    tail_type:0,
    tail_length:75,
    finlet_type:0,
    neck_type:0,
    nose_height:0,
    mouth_size:8,
    head_length:30,
    head_texture_amount:60,
    has_moustache:1,
    moustache_length:10,
    has_beard:0,
    has_teeth:1,
    teeth_length:8,
    teeth_space:3.5,
    beard_length:30,
    eye_type:1,
    eye_size:10,
    jaw_size:1,
    jaw_open:1,
 };
let polylines = fish(my_params);

fs.writeFileSync("out.svg",draw_svg(cleanup(reframe(polylines, 20, 'My fish name.'))));

By tweaking these a bit you can figure out the params for your favorite fish.

See the generate_params() function for recommended ranges for each param.

Note that some fish species might not be representable with this system, and passing "bad" params might produce weird results or crash the program.

Good luck ;)

[Otoliths]

Thank you very much for your prompt reply !

[Otoliths]

TypeError: Cannot read property 'writeFileSync' of undefined
const fs = require('fs');