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Basic segment settings and generation

This commit is contained in:
leca 2025-02-28 22:59:37 +03:00
parent 28e8c15fc1
commit 95cfe0cf43
23 changed files with 162311 additions and 73 deletions
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CMakeLists.txt
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@ -1,13 +1,29 @@
cmake_minimum_required(VERSION 3.20) cmake_minimum_required(VERSION 3.20)
project(TimeCoil) project(TimeCoil)
SET(PROJECT_SOURCES src/main.cpp src/glad.c) include(FetchContent)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/src ${CMAKE_CURRENT_SOURCE_DIR}/include )
SET(PROJECT_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src/main.cpp src/glad.c
${CMAKE_CURRENT_SOURCE_DIR}/src/coil/coil.cpp
${CMAKE_CURRENT_SOURCE_DIR}/src/coil/segment.cpp
)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/src
${CMAKE_CURRENT_SOURCE_DIR}/include
${CMAKE_CURRENT_SOURCE_DIR}/src/coil
${CMAKE_CURRENT_SOURCE_DIR}/src/ui
)
add_executable(TimeCoil ${PROJECT_SOURCES}) add_executable(TimeCoil ${PROJECT_SOURCES})
FetchContent_Declare(
glm
GIT_REPOSITORY https://github.com/g-truc/glm.git
GIT_TAG 5847dd91b2dc85cdd8d395ccf68985310e3e0e40
)
FetchContent_MakeAvailable(glm)
find_package(glfw3 3.4 REQUIRED) find_package(glfw3 3.4 REQUIRED)
find_package(OpenGL REQUIRED) find_package(OpenGL REQUIRED)
target_link_libraries(TimeCoil glfw OpenGL::GL glm)
target_link_libraries(TimeCoil glfw)
target_link_libraries(TimeCoil OpenGL::GL)

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build.sh
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#!/usr/bin/env bash #!/usr/bin/env bash
cd build && cmake -DCMAKE_C_FLAGS="-g" .. && make && ./TimeCoil cd build && cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_C_FLAGS="-g -v -da -Q -O0" .. && make && ./TimeCoil > ../points.csv && python ../tools/build_3d.py ../points.csv

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points.csv Normal file
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round.csv Normal file
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17
src/coil/coil.cpp Normal file
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@ -0,0 +1,17 @@
#include "coil.hpp"
Coil::Coil(uint32_t currentYear, uint32_t amountOfSegments)
: currentYear(currentYear) {
for (short i = amountOfSegments / -2.; i < amountOfSegments / 2.; i++) {
uint32_t year = this->currentYear + i;
segments.push_back(CoilSegment(this, year, segmentHeight, i, 3,false));
}
};
std::vector<CoilSegment> &Coil::getSegments() {
return segments;
}
double Coil::getWidth() {
return width;
}

25
src/coil/coil.hpp Normal file
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@ -0,0 +1,25 @@
#include <vector>
#include "segment.hpp"
#ifndef COIL_HPP
#define COIL_HPP
// Coil segment is a one turn of a coil
// Coil slice is a set of points that define slice of coil
class Coil {
// distance between coil center and nearest to it coil edge
double radius;
// distance between coil slices edges
double width;
double segmentHeight;
uint32_t currentYear;
std::vector<CoilSegment> segments;
public:
Coil(uint32_t currentYear, uint32_t amountOfSegments);
std::vector<CoilSegment> &getSegments();
double getWidth();
};
#endif // COIL_HPP

225
src/coil/segment.cpp Normal file
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@ -0,0 +1,225 @@
#include "segment.hpp"
#include "coil.hpp"
#include "glm/ext/matrix_float4x4.hpp"
#include "glm/ext/matrix_transform.hpp"
#include "glm/trigonometric.hpp"
#include <cstring>
#include <iostream>
#include <glm/glm.hpp>
#include <cstdint>
// x, y, z, r, g, b
#define FIELDS_IN_POINT 6
#define DAYS_IN_YEAR (isLeap? 366.0f : 365.0f)
using glm::vec4;
using glm::vec3;
using glm::mat4;
using glm::radians;
using glm::rotate;
using glm::sin;
using glm::cos;
using glm::translate;
using std::endl;
using std::cout;
using std::cerr;
CoilSegment::CoilSegment(
Coil* coil,
uint16_t year,
uint16_t height,
int shift,
uint32_t sliceDetalization,
bool isLeap
) :
coil(coil), year(year),
height(height), shift(shift),
sliceDetalization(sliceDetalization), isLeap(isLeap) {
init();
calculate();
}
void CoilSegment::init () {
verticesLength = DAYS_IN_YEAR * FIELDS_IN_POINT * (sliceDetalization+2);
vertices = (double *) calloc(verticesLength, sizeof(double));
if (vertices == NULL) {
cerr << "Allocation failed" << endl;
exit(-1);
}
// cout << "Initialized CoilSegment"
// << "(year: " << year
// << ", height: " << height
// << ", shift: " << shift
// << ", isLeap: " << isLeap <<")" << endl;
}
void CoilSegment::printVertices() {
for (uint16_t day = 0; day < DAYS_IN_YEAR; day ++) {
cout << "Day " << day << ", " <<
"x: " << vertices[FIELDS_IN_POINT * day + 0] << ", " <<
"y: " << vertices[FIELDS_IN_POINT * day + 1] << ", " <<
"z: " << vertices[FIELDS_IN_POINT * day + 2] << ", " <<
"r: " << vertices[FIELDS_IN_POINT * day + 3] << ", " <<
"g: " << vertices[FIELDS_IN_POINT * day + 4] << ", " <<
"b: " << vertices[FIELDS_IN_POINT * day + 5] << endl;
}
}
double round_to_presicion( double value, int precision ) {
const int adjustment = pow(10,precision);
return floor( value*(adjustment) + 0.5 )/adjustment;
}
double *CoilSegment::calculateSlice() {
uint32_t size = (/*start and end of a slize*/2 + sliceDetalization) * FIELDS_IN_POINT * sizeof(double);
double *slice = (double *)malloc(size);
// Start of a slice
slice[0] = cos(0);
slice[1] = sin(0);
slice[2] = 0;
slice[3] = 1;
slice[4] = 1;
slice[5] = 1;
double degreeByPoint = -180. / (sliceDetalization + 1);
for (uint32_t i = 1; i <= sliceDetalization; i ++) {
uint32_t offset = FIELDS_IN_POINT * i;
slice[offset + 0] = round_to_presicion(cos(radians(degreeByPoint * i)), 5);
slice[offset + 1] = round_to_presicion(sin(radians(degreeByPoint * i)), 5);
slice[offset + 2] = 0;
slice[offset + 3] = 1;
slice[offset + 4] = 1;
slice[offset + 5] = 1;
}
// End of a slice
uint32_t endIndex = (size / sizeof(double) - FIELDS_IN_POINT);
slice[endIndex + 0] = round_to_presicion(cos(radians(180.)), 5);
slice[endIndex + 1] = round_to_presicion(sin(radians(180.)), 5);
slice[endIndex + 2] = 0;
slice[endIndex + 3] = 1;
slice[endIndex + 4] = 1;
slice[endIndex + 5] = 1;
return slice;
}
void CoilSegment::constructSegment(double *slice) {
double degreesPerDay = 360.f / DAYS_IN_YEAR;
for (uint32_t day = 0; day < DAYS_IN_YEAR; day ++) {
float daysDegree = day * degreesPerDay;
// TODO: replace 10 to coil->getWidth();
vec3 daysPosition = vec3(
cos(radians(daysDegree)) * 200,
10* daysDegree/360.,
sin(radians(daysDegree)) * 200
);
mat4 transform = mat4(1.);
// For some reason I cannot combine transform and rotation to one singe matrix.
// TODO: investigate and fix
// transform = translate(
// transform,
// daysPosition
// );
transform = rotate(
transform,
radians(daysDegree),
vec3(
0.0,
1.0,
0.0
)
);
for (uint32_t slicePoint = 0; slicePoint < (2 + sliceDetalization); slicePoint ++) {
uint32_t slicePointOffset = FIELDS_IN_POINT * slicePoint;
vec4 point(
slice[slicePointOffset + 0],
slice[slicePointOffset + 1],
slice[slicePointOffset + 2],
1
);
point = point*transform ;
uint64_t currentPointOffset = day * (2+sliceDetalization) * FIELDS_IN_POINT + slicePointOffset;
vertices[currentPointOffset + 0] = point.x + daysPosition.x;
vertices[currentPointOffset + 1] = point.y + daysPosition.y;
vertices[currentPointOffset + 2] = point.z + daysPosition.z;
memcpy(
vertices + currentPointOffset + 3,
slice + slicePointOffset + 3,
3
);
}
}
}
// Sample layout of 2 slices with 3 points.
// |x |y |z |r |g |b | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
// | point | point | point | point | point | point |
// | slice | slice |
//
void CoilSegment::calculate() {
double *slice = calculateSlice();
constructSegment(slice);
exportSegmentToCsv();
}
double *CoilSegment::getVertices() {
return vertices;
}
uint16_t CoilSegment::getVerticesLength() {
return verticesLength;
}
void CoilSegment::printSlice(double *slice) {
for (uint32_t i = 0; i < sliceDetalization+2; i ++) {
uint32_t offset = FIELDS_IN_POINT * i;
cout << "Point ("
<< slice[offset + 0] << ", "
<< slice[offset + 1] << ", "
<< slice[offset + 2] << ", "
<< ") rgb("
<< slice[offset + 3] << ", "
<< slice[offset + 4] << ", "
<< slice[offset + 5] << ")"
<< endl;
}
}
void CoilSegment::exportSliceToCSV(double *slice) {
cout << "x,y,z" << endl;
for (uint32_t i = 0; i < sliceDetalization+2; i ++) {
uint32_t offset = FIELDS_IN_POINT * i;
cout
<< slice[offset + 0] << ","
<< slice[offset + 1] << ",0" << endl;
}
}
void CoilSegment::exportSegmentToCsv() {
cout << "x,y,z" << endl;
for (uint16_t day = 0; day < DAYS_IN_YEAR; day ++) {
uint64_t dayOffset = day * (2+sliceDetalization) * FIELDS_IN_POINT;
for (uint32_t point_in_slice = 0; point_in_slice < (2+sliceDetalization); point_in_slice ++) {
uint32_t sliceOffset = point_in_slice * FIELDS_IN_POINT;
cout << vertices[dayOffset + sliceOffset + 0] << ","
<< vertices[dayOffset + sliceOffset + 1] << ","
<< vertices[dayOffset + sliceOffset + 2] << endl;
}
}
}

34
src/coil/segment.hpp Normal file
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@ -0,0 +1,34 @@
#ifndef COIL_SEGMENT_HPP
#define COIL_SEGMENT_HPP
#include <cstdint>
class Coil;
class CoilSegment {
Coil *coil;
uint16_t year;
uint16_t height;
// Number of a segments, counting from the central (which is 0)
int shift;
uint32_t sliceDetalization;
bool isLeap;
double *vertices;
uint32_t verticesLength;
void init();
double* calculateSlice();
void constructSegment(double *slice);
public:
CoilSegment(Coil* coil, uint16_t year, uint16_t height, int shift, uint32_t sliceDetalization, bool isLeap);
void calculate();
void printVertices();
double *getVertices();
uint16_t getVerticesLength();
void printSlice(double *slice);
void exportSliceToCSV(double *slice);
void exportSegmentToCsv();
};
#endif // COIL_SEGMENT_HPP

150
src/main.cpp
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@ -6,7 +6,10 @@
#include <cmath> #include <cmath>
#include <cstdlib> #include <cstdlib>
#define RAND_0_1 ((float)rand()) / RAND_MAX #include "coil/coil.hpp"
#include "coil/segment.hpp"
#define RAND_0_1 ((double)rand()) / RAND_MAX
void framebufferSizeCallback(GLFWwindow *window, int width, int height) { void framebufferSizeCallback(GLFWwindow *window, int width, int height) {
glViewport(10, 10, width-10, height-10); glViewport(10, 10, width-10, height-10);
@ -44,9 +47,9 @@ std::string readFile(std::string path) {
return content; return content;
} }
void updateVertices(float (&vertices)[24]) { void updateVertices(double (&vertices)[24]) {
// if (RAND_0_1 < 0.99f) return; // if (RAND_0_1 < 0.99f) return;
float a[] = { double a[] = {
-1.0f, 1.0f, 0.0f, RAND_0_1, RAND_0_1, RAND_0_1, // upper left -1.0f, 1.0f, 0.0f, RAND_0_1, RAND_0_1, RAND_0_1, // upper left
-1.0f, -1.0f, 0.0f, RAND_0_1, RAND_0_1, RAND_0_1, // bottom left -1.0f, -1.0f, 0.0f, RAND_0_1, RAND_0_1, RAND_0_1, // bottom left
1.0f, 1.0f, 0.0f, RAND_0_1, RAND_0_1, RAND_0_1, // upper right 1.0f, 1.0f, 0.0f, RAND_0_1, RAND_0_1, RAND_0_1, // upper right
@ -107,89 +110,102 @@ unsigned int prepareShaders() {
} }
int main () { int main () {
srand(time(0)); Coil c = Coil(2025, 1);
glfwInit();
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
#ifdef __APPLE__
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
#endif
GLFWwindow *window = glfwCreateWindow(800, 600, "TimeCoil", NULL, NULL); // CoilSegment cs = CoilSegment(10, 0, false);
if (window == NULL) { for (auto segment : c.getSegments()) {
std::cerr << "Failed to create GLFW window." << std::endl; // segment.printVertices();
gracefulExit(-1);
} }
// cs.printVertices();
return 0;
// srand(time(0));
// glfwInit();
// glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
// glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
// glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
// #ifdef __APPLE__
// glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
// #endif
glfwMakeContextCurrent(window); // GLFWwindow *window = glfwCreateWindow(800, 600, "TimeCoil", NULL, NULL);
glfwSetFramebufferSizeCallback(window, framebufferSizeCallback); // if (window == NULL) {
// std::cerr << "Failed to create GLFW window." << std::endl;
// gracefulExit(-1);
// }
if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) { // glfwMakeContextCurrent(window);
std::cerr << "Failed to initialize GLAD." << std::endl; // glfwSetFramebufferSizeCallback(window, framebufferSizeCallback);
return -1;
}
unsigned int shaderProgram = prepareShaders(); // if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) {
// std::cerr << "Failed to initialize GLAD." << std::endl;
// return -1;
// }
float vertices[] = { // unsigned int shaderProgram = prepareShaders();
-1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, // upper left
-1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f, // bottom left
1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, // upper right
1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f // bottom right
};
unsigned int indices[] = {
1, 2, 3,
1, 2, 0
};
unsigned int VBO, VAO, EBO;
glGenVertexArrays(1, &VAO);
glGenBuffers(1, &VBO);
glGenBuffers(1, &EBO);
glBindVertexArray(VAO); // double *vertices = cs.getVertices();
// unsigned int amountOfVerticies = cs.getVerticesLength();
// std::cout << amountOfVerticies << std::endl;
// // double vertices[] = {
// // -1.0f, -1.0f, 0.0f, 1.0f, 0.0f, 0.0f, // upper left
// // -0.5f, -0.5f, 0.0f, 0.0f, 1.0f, 0.0f, // bottom left
// // 0.5f, 0.5f, 0.0f, 1.0f, 0.0f, 0.0f, // upper right
// // 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f // bottom right
// // };
// // unsigned int indices[] = {
// // 1, 2, 3,
// // 1, 2, 0
// // };
// unsigned int VBO, VAO, EBO;
// glGenVertexArrays(1, &VAO);
// glGenBuffers(1, &VBO);
// // glGenBuffers(1, &EBO);
glBindBuffer(GL_ARRAY_BUFFER, VBO); // glBindVertexArray(VAO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW); // glBindBuffer(GL_ARRAY_BUFFER, VBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW); // // glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*)0); // glBufferData(GL_ARRAY_BUFFER, amountOfVerticies, vertices, GL_STATIC_DRAW);
glEnableVertexAttribArray(0); // // glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*) (3 * sizeof(float))); // glVertexAttribPointer(0, 3, GL_DOUBLE, GL_FALSE, 6 * sizeof(double), (void*)0);
glEnableVertexAttribArray(1); // glEnableVertexAttribArray(0);
glBindVertexArray(0); // glVertexAttribPointer(1, 3, GL_DOUBLE, GL_FALSE, 6 * sizeof(double), (void*) (3 * sizeof(double)));
// glEnableVertexAttribArray(1);
// glBindVertexArray(0);
while(!glfwWindowShouldClose(window)) { // while(!glfwWindowShouldClose(window)) {
processInput(window); // processInput(window);
glClearColor(0.2f, 0.3f, 0.3f, 1.0f); // glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT); // glClear(GL_COLOR_BUFFER_BIT);
glUseProgram(shaderProgram); // glUseProgram(shaderProgram);
// float time = glfwGetTime(); // // double time = glfwGetTime();
// float greenValue = sin(time); // // double greenValue = sin(time);
// int vertexColorLocation = glGetUniformLocation(shaderProgram, "MyColor"); // // int vertexColorLocation = glGetUniformLocation(shaderProgram, "MyColor");
// glUniform4f(vertexColorLocation, 0, greenValue, 0, 1); // // glUniform4f(vertexColorLocation, 0, greenValue, 0, 1);
glBindVertexArray(VAO); // glBindVertexArray(VAO);
updateVertices(vertices); // // updateVertices(vertices);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_DYNAMIC_DRAW); // glBufferData(GL_ARRAY_BUFFER, amountOfVerticies, vertices, GL_DYNAMIC_DRAW);
glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0); // // glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
// glDrawArrays(GL_LINE_STRIP_ADJACENCY, -30, amountOfVerticies);
glBindVertexArray(0); // glBindVertexArray(0);
glfwSwapBuffers(window); // glfwSwapBuffers(window);
glfwPollEvents(); // glfwPollEvents();
} // }
glDeleteVertexArrays(1, &VAO); // glDeleteVertexArrays(1, &VAO);
glDeleteBuffers(1, &VBO); // glDeleteBuffers(1, &VBO);
glDeleteProgram(shaderProgram); // glDeleteProgram(shaderProgram);
gracefulExit(0); // gracefulExit(0);
} }

13
test.cpp Normal file
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@ -0,0 +1,13 @@
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
int main () {
uint32_t size = -1;
char *arr = (char*) malloc(size);
for (uint64_t i = 0; i < (uint64_t)-1; i ++) {
arr[i] = '\0';
if (i % 10000000 != 0) continue;
printf("%lli\n", i);
}
}

4
test.csv Normal file
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@ -0,0 +1,4 @@
x,y,z
1,0,0
0,1,0
0,0,1
1 x y z
2 1 0 0
3 0 1 0
4 0 0 1

40
tools/build_3d.py Executable file
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@ -0,0 +1,40 @@
#!/usr/bin/env python0;
import plotly.graph_objects as go
import pandas as pd
import numpy as np
import sys
if len(sys.argv) != 2:
print(f"Usage: ./{sys.argv[0]} <filename>")
sys.exit(1)
df = pd.read_csv(sys.argv[1])
fig = go.Figure(data=[go.Scatter3d(x=df['x'], y=df['y'], z=df['z'], mode='markers')])
fig.update_layout(
scene = dict(
xaxis_title='X',
yaxis_title='Y',
zaxis_title='Z',
xaxis=dict(nticks=10, range=[-220, 220]),
yaxis=dict(nticks=10, range=[-220, 220]),
zaxis=dict(nticks=10, range=[-220, 220])
),
)
fig.update_layout(
scene = dict(
camera = dict(
eye=dict(x=1.5, y=1.5, z=1.5)
)
),
)
fig.data[0].y, fig.data[0].z = fig.data[0].z, fig.data[0].y
fig.show()