Skip to content

第一次作业画openCV logo #24

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 2 commits into
base: master
Choose a base branch
from
Open

第一次作业画openCV logo #24

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
5858f3a
在main添加画圆函数
Zexin-Li Jun 29, 2023
e1678f4
在main添加画opencv logo函数
Zexin-Li Jun 29, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
127 changes: 105 additions & 22 deletions src/main.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -16,27 +16,110 @@ static void render() {
glColor3f(0.0f, 0.0f, 1.0f);
glVertex3f(0.5f, -0.5f, 0.0f);
CHECK_GL(glEnd());
/* glBegin(GL_TRIANGLES); */
/* constexpr int n = 100; */
/* constexpr float pi = 3.1415926535897f; */
/* float radius = 0.5f; */
/* float inner_radius = 0.25f; */
/* static int x = 0; */
/* x++; */
/* if (x > n) */
/* x -= n; */
/* for (int i = 0; i < x; i++) { */
/* float angle = i / (float)n * pi * 2; */
/* float angle_next = (i + 1) / (float)n * pi * 2; */
/* glVertex3f(0.0f, 0.0f, 0.0f); */
/* glVertex3f(radius * sinf(angle), radius * cosf(angle), 0.0f); */
/* glVertex3f(radius * sinf(angle_next), radius * cosf(angle_next), 0.0f); */
/* glVertex3f(inner_radius * sinf(angle), inner_radius * cosf(angle), 0.0f); */
/* glVertex3f(inner_radius * sinf(angle_next), inner_radius * cosf(angle_next), 0.0f); */
/* glVertex3f(inner_radius * sinf(angle), inner_radius * cosf(angle), 0.0f); */
/* glVertex3f(radius * sinf(angle_next), radius * cosf(angle_next), 0.0f); */
/* } */
/* CHECK_GL(glEnd()); */
}

static void render_round() {
glBegin(GL_TRIANGLES);
constexpr int n = 100;
constexpr float pi = 3.1415926535897f;
float radius = 0.5f;
float inner_radius = 0.25f;
static int x = 0;
x++;
if (x > n)
x -= n;
for (int i = 0; i < x; i++) {
float angle = i / (float)n * pi * 2;
float angle_next = (i + 1) / (float)n * pi * 2;
glVertex3f(0.0f, 0.0f, 0.0f);
glVertex3f(radius * sinf(angle), radius * cosf(angle), 0.0f);
glVertex3f(radius * sinf(angle_next), radius * cosf(angle_next), 0.0f);
glVertex3f(inner_radius * sinf(angle), inner_radius * cosf(angle), 0.0f);
glVertex3f(inner_radius * sinf(angle_next), inner_radius * cosf(angle_next), 0.0f);
glVertex3f(inner_radius * sinf(angle), inner_radius * cosf(angle), 0.0f);
glVertex3f(radius * sinf(angle_next), radius * cosf(angle_next), 0.0f);
}
CHECK_GL(glEnd());
}

static void render_opencv() {
glBegin(GL_TRIANGLES);

constexpr int n = 360;
constexpr float pi = 3.1415926535897f;
constexpr float stopAngle = 11.0 / 12.0 * pi * 2;
float radius = 0.1f;
float far = 2 * radius;
float inner_radius = 0.06f;
/*static int x = 0;
x++;
if (x > n)
{return;}*/
for (int i = 0; i < n; i++) {
float angle = i / (float)n * pi * 2;
float angle_next = (i + 1) / (float)n * pi * 2;
//glVertex3f(0.0f, 0.0f, 0.0f);
// Բ1
if (0.f <= angle && 1.0f / 12.0f * pi * 2 > angle ||
11.0f / 12.0f * pi * 2 <= angle)
{
glColor3f(0.0f, 0.0f, 0.0f);
}
else {
glColor3f(0.0f, 0.0f, 1.0f);
}
glVertex3f(radius * sinf(angle) + far, radius * cosf(angle), 0.0f);
glVertex3f(radius * sinf(angle_next) + far, radius * cosf(angle_next), 0.0f);
glVertex3f(inner_radius * sinf(angle) + far, inner_radius * cosf(angle), 0.0f);
glVertex3f(inner_radius * sinf(angle_next) + far, inner_radius * cosf(angle_next), 0.0f);
glVertex3f(inner_radius * sinf(angle) + far, inner_radius * cosf(angle), 0.0f);
glVertex3f(radius * sinf(angle_next) + far, radius * cosf(angle_next), 0.0f);

}

for (int i = 0; i < n; i++) {
float angle = i / (float)n * pi * 2;

float angle_next = (i + 1) / (float)n * pi * 2;

// Բ2
if (1.0f / 12.0f * pi * 2 < angle && 3.0f / 12.0f * pi * 2 > angle)
{
glColor3f(0.0f, 0.0f, 0.0f);
}
else {
glColor3f(0.0f, 1.0f, 0.0f);
}
;
glVertex3f(radius * sinf(angle) - far, radius * cosf(angle), 0.0f);
glVertex3f(radius * sinf(angle_next) - far, radius * cosf(angle_next), 0.0f);
glVertex3f(inner_radius * sinf(angle) - far, inner_radius * cosf(angle), 0.0f);
glVertex3f(inner_radius * sinf(angle_next) - far, inner_radius * cosf(angle_next), 0.0f);
glVertex3f(inner_radius * sinf(angle) - far, inner_radius * cosf(angle), 0.0f);
glVertex3f(radius * sinf(angle_next) - far, radius * cosf(angle_next), 0.0f);
}

for (int i = 0; i < n; i++) {
float angle = i / (float)n * pi * 2;

float angle_next = (i + 1) / (float)n * pi * 2;

// Բ3
if (5.0f / 12.0f * pi * 2 < angle && 7.0f / 12.0f * pi * 2 > angle)
{
glColor3f(0.0f, 0.0f, 0.0f);
}
else {
glColor3f(1.0f, 0.0f, 0.0f);
}
glVertex3f(radius * sinf(angle) , radius * cosf(angle) + far, 0.0f);
glVertex3f(radius * sinf(angle_next) , radius * cosf(angle_next) + far, 0.0f);
glVertex3f(inner_radius * sinf(angle) , inner_radius * cosf(angle) + far, 0.0f);
glVertex3f(inner_radius * sinf(angle_next) , inner_radius * cosf(angle_next) + far, 0.0f);
glVertex3f(inner_radius * sinf(angle) , inner_radius * cosf(angle) + far, 0.0f);
glVertex3f(radius * sinf(angle_next) , radius * cosf(angle_next) + far, 0.0f);
}
CHECK_GL(glEnd());
}

int main() {
Expand Down Expand Up @@ -108,7 +191,7 @@ int main() {
while (!glfwWindowShouldClose(window)) {
// render graphics
CHECK_GL(glClear(GL_COLOR_BUFFER_BIT));
render();
render_opencv();
// refresh screen
glfwSwapBuffers(window);
glfwPollEvents();
Expand Down