fogleman

This C++ application is designed to generate 3D models from heightmap images through triangulation, optionally adding solid bases and applying various modifications to the heightmap before processing. It also supports generating normal and hillshade maps based on the input heightmap. Below is a detailed usage guide, including implementation and algorithm details.

Usage

To use this application, you need to compile the provided source files (base.cpp, blur.cpp, heightmap.cpp, main.cpp, stl.cpp, triangulator.cpp, along with their headers) into an executable. The program requires specifying an input heightmap file and various optional parameters to control the output model's characteristics.

./heightmap_to_stl [options] infile [outfile.stl]

fogleman

import sys

#          -------
#         | 16 17 |
#         |   Y   |
#         | 18 19 |
#  ------- ------- ------- -------
# | 12 13 | 00 01 | 04 05 | 08 09 |
# |   X   |   Z   |   X   |   Z   |
# | 14 15 | 02 03 | 06 07 | 10 11 |

fogleman

import random
import time

# inspiration: https://mathematica.stackexchange.com/questions/39361/how-to-generate-a-random-snowflake

# see https://www.redblobgames.com/grids/hexagons/ for information
# about hexagon grids and coordinate systems

# neighbors in axial coordinates
DIRS = [(1, 0), (1, -1), (0, -1), (-1, 0), (-1, 1), (0, 1)]

fogleman

- Install & launch

    $ brew install syncthing
    $ brew services start syncthing

- Install it on your Linode or whatever too
    - https://apt.syncthing.net/

- Visit local dashboard at http://localhost:8384/
- Click `Add Remote Device` to sync with another machine

fogleman

#define CL_SILENCE_DEPRECATION

// #if defined(__APPLE__) || defined(__MACOSX)
// #include <OpenCL/cl.hpp>
// #else
// #include <CL/cl.hpp>
// #endif

#include "cl.hpp"

fogleman

import cairocffi as cairo
import numpy as np
import random

def random_coefs(order, sigma):
    return [random.gauss(0, sigma) for _ in range(order)]

def random_transform():
    y_dx = random_coefs(5, 0.3)
    y_dy = random_coefs(5, 0.3)

fogleman

from PIL import Image
from pyhull.delaunay import DelaunayTri
from shapely import geometry
from skimage import measure
from scipy import interpolate
import math
import numpy as np
import struct
import sys

fogleman

#include <stdint.h>
#include <stdio.h>

typedef union {
    uint32_t a;
    float b;
} float_or_int;

int main() {
    float_or_int u;

fogleman

package main

import (
	"image"
	"image/color"
	"math"
	"math/cmplx"

	"github.com/fogleman/fauxgl"
	"github.com/fogleman/gg"

fogleman

package main

import (
	"fmt"
	"image"
	"image/draw"
	"image/png"
	"math"
	"os"