{

mplot::Visual v(1600, 1000, "Flat GridVisual grids with borders");

v.lightingEffects();

v.rotateAboutNearest (true);

// Create a grid to show in the scene

constexpr unsigned int Nside = 4; // You can change this

constexpr sm::vec<float, 2> grid_spacing = {0.5f, 0.5f};

sm::grid grid(Nside, Nside, grid_spacing);

std::cout << "Number of pixels in grid:" << grid.n() << std::endl;

// Make some dummy data (a sine wave) to make an interesting surface

std::vector<float> data(grid.n(), 0.0);

// Set data

constexpr float length = sm::mathconst<float>::pi_over_4;

for (unsigned int ri=0; ri<grid.n(); ++ri) {

auto coord = grid[ri];

data[ri] = std::sin(length * coord[0]) * std::sin(0.5f * length * coord[1]) ; // Range 0->1

}

float step = 0.6f;

// Add a GridVisual to display the Grid within the mplot::Visual scene

sm::vec<float, 3> offset = { -step * grid.width(), -step * grid.width(), 0.0f };

// A label position offset for use below

auto dx = grid.get_dx();

auto lblpos = -dx.plus_one_dim() + sm::vec<float>{dx[0]/2.0f,0,0};

// Grid with border

auto gv = std::make_unique<mplot::GridVisual<float>>(&grid, offset);

v.bindmodel (gv);

gv->gridVisMode = mplot::GridVisMode::Pixels;

gv->setScalarData (&data);

gv->cm.setType (mplot::ColourMapType::Cork);

gv->zScale.do_autoscale = false;

gv->zScale.null_scaling();

gv->colourScale.do_autoscale = false;

gv->colourScale.compute_scaling (-1, 1);

// Border specific parameters

gv->showborder (true);

gv->border_thickness = 0.15f; // of a pixel

gv->border_z_offset = 0.0f;

gv->border_colour = mplot::colour::aquamarine3;

gv->addLabel ("Pixels, border", lblpos, mplot::TextFeatures(0.08f));

gv->finalize();

v.addVisualModel (gv);

// Grid with no border

offset[0] += grid.width_of_pixels() * 1.2f;

gv = std::make_unique<mplot::GridVisual<float>>(&grid, offset);

v.bindmodel (gv);

gv->gridVisMode = mplot::GridVisMode::RectInterp;

gv->setScalarData (&data);

gv->cm.setType (mplot::ColourMapType::Cork);

gv->zScale.do_autoscale = false;

gv->zScale.null_scaling();

gv->colourScale.do_autoscale = false;

gv->colourScale.compute_scaling (-1, 1);

gv->showborder (false);

gv->implygrid (true);

gv->addLabel ("Rectinterp, No border, implied grid", lblpos, mplot::TextFeatures(0.08f));

gv->finalize();

v.addVisualModel (gv);

offset[0] += grid.width_of_pixels() * 1.2f;

gv = std::make_unique<mplot::GridVisual<float>>(&grid, offset);

v.bindmodel (gv);

gv->gridVisMode = mplot::GridVisMode::RectInterp;

gv->setScalarData (&data);

gv->cm.setType (mplot::ColourMapType::Cork);

gv->zScale.do_autoscale = false;

gv->zScale.null_scaling();

gv->colourScale.do_autoscale = false;

gv->colourScale.compute_scaling (-1, 1);

gv->showborder (false);

gv->showgrid (true);

gv->grid_colour = mplot::colour::grey48;

gv->addLabel ("Rectinterp, No border, filled grid", lblpos, mplot::TextFeatures(0.08f));

gv->finalize();

v.addVisualModel (gv);

// Selected pix

offset[0] += grid.width_of_pixels() * 1.2f;

gv = std::make_unique<mplot::GridVisual<float>>(&grid, offset);

v.bindmodel (gv);

gv->gridVisMode = mplot::GridVisMode::Pixels;

gv->setScalarData (&data);

gv->cm.setType (mplot::ColourMapType::Cork);

gv->zScale.do_autoscale = false;

gv->zScale.null_scaling();

gv->colourScale.do_autoscale = false;

gv->colourScale.compute_scaling (-1, 1);

// Border specific parameters

gv->showborder (true);

gv->border_thickness = 0.15f; // of a pixel

gv->border_z_offset = 0.0f;

gv->border_colour = mplot::colour::black;

// selected pix

gv->selected_pix[5] = mplot::colour::orangered2;

gv->selected_pix[6] = mplot::colour::crimson;

gv->selected_pix[9] = mplot::colour::crimson;

gv->selected_pix[10] = mplot::colour::crimson;

gv->showselectedpixborder (false);

gv->showselectedpixborder_enclosing (true);

gv->addLabel ("Pixels, border, selected pix with border", lblpos, mplot::TextFeatures(0.08f));

gv->finalize();

v.addVisualModel (gv);

offset = { -step * grid.width(), -step * grid.width(), 0.0f };

offset[1] -= grid.height_of_pixels() * 1.2f;

gv = std::make_unique<mplot::GridVisual<float>>(&grid, offset);

v.bindmodel (gv);

gv->gridVisMode = mplot::GridVisMode::Pixels;

gv->setScalarData (&data);

gv->cm.setType (mplot::ColourMapType::Cork);

gv->zScale.do_autoscale = false;

gv->zScale.null_scaling();

gv->colourScale.do_autoscale = false;

gv->colourScale.compute_scaling (-1, 1);

// Border specific parameters

gv->showborder (true);

gv->border_thickness = 0.15f; // of a pixel

gv->border_z_offset = 0.0f;

gv->border_colour = mplot::colour::grey10;

gv->border_tubular (false);

// selected pix

gv->selected_pix[0] = mplot::colour::crimson;

gv->selected_pix[1+4] = mplot::colour::blue2;

gv->selected_pix[2+8] = mplot::colour::goldenrod2;

gv->selected_pix[3+12] = mplot::colour::royalblue2;

gv->showselectedpixborder (true);

gv->showselectedpixborder_enclosing (false);

gv->addLabel ("Pixels, flat border, selected pix coloured", lblpos, mplot::TextFeatures(0.08f));

gv->finalize();

v.addVisualModel (gv);

offset[0] += grid.width_of_pixels() * 1.2f;

gv = std::make_unique<mplot::GridVisual<float>>(&grid, offset);

v.bindmodel (gv);

gv->gridVisMode = mplot::GridVisMode::Triangles;

gv->setScalarData (&data);

gv->cm.setType (mplot::ColourMapType::Cork);

gv->zScale.do_autoscale = false;

gv->zScale.null_scaling();

gv->colourScale.do_autoscale = false;

gv->colourScale.compute_scaling (-1, 1);

// Border specific parameters

gv->showborder (true);

gv->border_thickness = 0.15f; // of a pixel

gv->border_z_offset = 0.0f;

gv->border_colour = mplot::colour::grey32;

gv->addLabel ("Triangles, border (smaller is as expected)", lblpos, mplot::TextFeatures(0.08f));

gv->finalize();

v.addVisualModel (gv);

offset[0] += grid.width_of_pixels() * 1.2f;

gv = std::make_unique<mplot::GridVisual<float>>(&grid, offset);

v.bindmodel (gv);

gv->gridVisMode = mplot::GridVisMode::Triangles;

gv->setScalarData (&data);

gv->cm.setType (mplot::ColourMapType::Cork);

gv->zScale.do_autoscale = false;

gv->zScale.null_scaling();

gv->colourScale.do_autoscale = false;

gv->colourScale.compute_scaling (-1, 1);

// Border specific parameters

gv->showborder (false);

gv->addLabel ("Triangles, no border, showing halfedges", lblpos, mplot::TextFeatures(0.08f));

gv->finalize();

auto gvp = v.addVisualModel (gv);

// Make a navmesh for this last one

gvp->make_navmesh();

// Add a Normals visual for the last one, too

auto nrm = std::make_unique<mplot::NormalsVisual<>> (gvp);

v.bindmodel (nrm);

nrm->options.set (mplot::normalsvisual_flags::show_halfedges);

nrm->options.set (mplot::normalsvisual_flags::show_boundary_next);

nrm->options.set (mplot::normalsvisual_flags::show_boundary_prev);

nrm->finalize();

v.addVisualModel (nrm);

v.keepOpen();

return 0;