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#include "cru/platform/GraphicsBase.h"
#include "cru/platform/bootstrap/Bootstrap.h"
#include "cru/platform/graphics/Factory.h"
#include "cru/platform/graphics/Painter.h"
#include "cru/platform/gui/UiApplication.h"
#include "cru/platform/gui/Window.h"
#include <dlib/matrix.h>
#include <dlib/numeric_constants.h>
#include <cmath>
using cru::platform::Point;
using matrix14 = dlib::matrix<float, 1, 4>;
using matrix13 = dlib::matrix<float, 1, 3>;
using matrix44 = dlib::matrix<float, 4, 4>;
matrix44 Identity() {
matrix44 m;
m = dlib::identity_matrix<float, 4>();
return m;
}
matrix44 T1(float a, float b, float c) {
auto m = Identity();
m(0, 3) = -a;
m(1, 3) = -b;
m(2, 3) = -c;
return m;
}
matrix44 T2(float theta) {
auto m = Identity();
m(0, 0) = -std::cos(theta);
m(0, 2) = -std::sin(theta);
m(2, 0) = std::sin(theta);
m(2, 2) = -std::cos(theta);
return m;
}
matrix44 T3(float phi) {
auto m = Identity();
m(1, 1) = std::sin(phi);
m(1, 2) = -std::cos(phi);
m(2, 1) = std::cos(phi);
m(2, 2) = std::sin(phi);
return m;
}
matrix44 T4(float alpha) {
auto m = Identity();
m(0, 0) = std::cos(alpha);
m(1, 0) = std::sin(alpha);
m(0, 1) = -std::sin(alpha);
m(1, 1) = std::cos(alpha);
return m;
}
matrix44 T5() {
auto m = Identity();
m(0, 0) = -1;
return m;
}
struct Args {
float a;
float b;
float c;
float theta;
float phi;
float alpha;
};
matrix44 Tv(Args args) {
return T1(args.a, args.b, args.c) * T2(args.theta) * T3(args.phi) *
T4(args.alpha) * T5();
}
matrix14 Transform(matrix14 point, Args args) { return point * Tv(args); }
matrix14 Transform(matrix13 point, Args args) {
return matrix14{point(0), point(1), point(2), 1} * Tv(args);
}
Point TransformTo2D(matrix14 point, float d) {
return Point{point(1), point(2)};
}
const float length = 100;
matrix13 points[] = {
{0, 0, 0},
{length, 0, 0},
{length, 0, 0},
{length, length, 0},
{length, length, 0},
{0, length, 0},
{0, length, 0},
{0, 0, 0},
{0, 0, 0},
{0, 0, length},
{length, 0, 0},
{length, 0, length},
{length, length, 0},
{length, length, length},
{0, length, 0},
{0, length, length},
{0, 0, length},
{length, 0, length},
{length, 0, length},
{length, length, length},
{length, length, length},
{0, length, length},
{0, length, length},
{0, 0, length},
};
const float pi = static_cast<float>(dlib::pi);
Args args{30, 40, 50, pi / 3.f, pi / 4.f, pi / 5.f};
int main() {
std::vector<Point> points2d;
for (auto p : points) {
auto point2d = TransformTo2D(Transform(std::move(p), args), length);
points2d.push_back(point2d);
}
auto application = cru::platform::bootstrap::CreateUiApplication();
auto window = application->CreateWindow();
auto brush = application->GetGraphicsFactory()->CreateSolidColorBrush(
cru::platform::colors::black);
window->SetClientSize(cru::platform::Size(400, 400));
window->PaintEvent()->AddHandler([window, &brush, points2d](nullptr_t) {
auto painter = window->BeginPaint();
painter->PushState();
painter->ConcatTransform(cru::platform::Matrix::Translation(200, 200));
for (int i = 0; i < points2d.size(); i += 2) {
painter->DrawLine(points2d[i], points2d[i + 1], brush.get(), 1.f);
}
painter->PopState();
});
window->SetVisibility(cru::platform::gui::WindowVisibilityType::Show);
return application->Run();
}
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