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2421 lines (2095 loc) · 71.8 KB
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#include "openmc/plot.h"
#include <algorithm>
#define _USE_MATH_DEFINES // to make M_PI declared in Intel and MSVC compilers
#include <cmath>
#include <cstdio>
#include <fstream>
#include <sstream>
#include "openmc/tensor.h"
#include <fmt/core.h>
#include <fmt/ostream.h>
#ifdef USE_LIBPNG
#include <png.h>
#endif
#include "openmc/cell.h"
#include "openmc/constants.h"
#include "openmc/container_util.h"
#include "openmc/dagmc.h"
#include "openmc/error.h"
#include "openmc/file_utils.h"
#include "openmc/geometry.h"
#include "openmc/hdf5_interface.h"
#include "openmc/material.h"
#include "openmc/mesh.h"
#include "openmc/message_passing.h"
#include "openmc/openmp_interface.h"
#include "openmc/output.h"
#include "openmc/particle.h"
#include "openmc/progress_bar.h"
#include "openmc/random_lcg.h"
#include "openmc/settings.h"
#include "openmc/simulation.h"
#include "openmc/string_utils.h"
namespace openmc {
//==============================================================================
// Constants
//==============================================================================
constexpr int PLOT_LEVEL_LOWEST {-1}; //!< lower bound on plot universe level
constexpr int32_t NOT_FOUND {-2};
constexpr int32_t OVERLAP {-3};
IdData::IdData(size_t h_res, size_t v_res) : data_({v_res, h_res, 3}, NOT_FOUND)
{}
void IdData::set_value(size_t y, size_t x, const GeometryState& p, int level)
{
// set cell data
if (p.n_coord() <= level) {
data_(y, x, 0) = NOT_FOUND;
data_(y, x, 1) = NOT_FOUND;
} else {
data_(y, x, 0) = model::cells.at(p.coord(level).cell())->id_;
data_(y, x, 1) = level == p.n_coord() - 1
? p.cell_instance()
: cell_instance_at_level(p, level);
}
// set material data
Cell* c = model::cells.at(p.lowest_coord().cell()).get();
if (p.material() == MATERIAL_VOID) {
data_(y, x, 2) = MATERIAL_VOID;
return;
} else if (c->type_ == Fill::MATERIAL) {
Material* m = model::materials.at(p.material()).get();
data_(y, x, 2) = m->id_;
}
}
void IdData::set_overlap(size_t y, size_t x)
{
for (size_t k = 0; k < data_.shape(2); ++k)
data_(y, x, k) = OVERLAP;
}
PropertyData::PropertyData(size_t h_res, size_t v_res)
: data_({v_res, h_res, 2}, NOT_FOUND)
{}
void PropertyData::set_value(
size_t y, size_t x, const GeometryState& p, int level)
{
Cell* c = model::cells.at(p.lowest_coord().cell()).get();
data_(y, x, 0) = (p.sqrtkT() * p.sqrtkT()) / K_BOLTZMANN;
if (c->type_ != Fill::UNIVERSE && p.material() != MATERIAL_VOID) {
Material* m = model::materials.at(p.material()).get();
data_(y, x, 1) = m->density_gpcc_;
}
}
void PropertyData::set_overlap(size_t y, size_t x)
{
data_(y, x) = OVERLAP;
}
//==============================================================================
// Global variables
//==============================================================================
namespace model {
std::unordered_map<int, int> plot_map;
vector<std::unique_ptr<PlottableInterface>> plots;
uint64_t plotter_seed = 1;
} // namespace model
//==============================================================================
// RUN_PLOT controls the logic for making one or many plots
//==============================================================================
extern "C" int openmc_plot_geometry()
{
for (auto& pl : model::plots) {
write_message(5, "Processing plot {}: {}...", pl->id(), pl->path_plot());
pl->create_output();
}
return 0;
}
void PlottableInterface::write_image(const ImageData& data) const
{
#ifdef USE_LIBPNG
output_png(path_plot(), data);
#else
output_ppm(path_plot(), data);
#endif
}
void Plot::create_output() const
{
if (PlotType::slice == type_) {
// create 2D image
ImageData image = create_image();
write_image(image);
} else if (PlotType::voxel == type_) {
// create voxel file for 3D viewing
create_voxel();
}
}
void Plot::print_info() const
{
// Plot type
if (PlotType::slice == type_) {
fmt::print("Plot Type: Slice\n");
} else if (PlotType::voxel == type_) {
fmt::print("Plot Type: Voxel\n");
}
// Plot parameters
fmt::print("Origin: {} {} {}\n", origin_[0], origin_[1], origin_[2]);
if (PlotType::slice == type_) {
fmt::print("Width: {:4} {:4}\n", width_[0], width_[1]);
} else if (PlotType::voxel == type_) {
fmt::print("Width: {:4} {:4} {:4}\n", width_[0], width_[1], width_[2]);
}
if (PlotColorBy::cells == color_by_) {
fmt::print("Coloring: Cells\n");
} else if (PlotColorBy::mats == color_by_) {
fmt::print("Coloring: Materials\n");
}
if (PlotType::slice == type_) {
switch (basis_) {
case PlotBasis::xy:
fmt::print("Basis: XY\n");
break;
case PlotBasis::xz:
fmt::print("Basis: XZ\n");
break;
case PlotBasis::yz:
fmt::print("Basis: YZ\n");
break;
}
fmt::print("Pixels: {} {}\n", pixels()[0], pixels()[1]);
} else if (PlotType::voxel == type_) {
fmt::print("Voxels: {} {} {}\n", pixels()[0], pixels()[1], pixels()[2]);
}
}
void read_plots_xml()
{
// Check if plots.xml exists; this is only necessary when the plot runmode is
// initiated. Otherwise, we want to read plots.xml because it may be called
// later via the API. In that case, its ok for a plots.xml to not exist
std::string filename = settings::path_input + "plots.xml";
if (!file_exists(filename) && settings::run_mode == RunMode::PLOTTING) {
fatal_error(fmt::format("Plots XML file '{}' does not exist!", filename));
}
write_message("Reading plot XML file...", 5);
// Parse plots.xml file
pugi::xml_document doc;
doc.load_file(filename.c_str());
pugi::xml_node root = doc.document_element();
read_plots_xml(root);
}
void read_plots_xml(pugi::xml_node root)
{
for (auto node : root.children("plot")) {
std::string plot_desc = "<auto>";
if (check_for_node(node, "id")) {
plot_desc = get_node_value(node, "id", true);
}
if (check_for_node(node, "type")) {
std::string type_str = get_node_value(node, "type", true);
if (type_str == "slice") {
model::plots.emplace_back(
std::make_unique<Plot>(node, Plot::PlotType::slice));
} else if (type_str == "voxel") {
model::plots.emplace_back(
std::make_unique<Plot>(node, Plot::PlotType::voxel));
} else if (type_str == "wireframe_raytrace") {
model::plots.emplace_back(
std::make_unique<WireframeRayTracePlot>(node));
} else if (type_str == "solid_raytrace") {
model::plots.emplace_back(std::make_unique<SolidRayTracePlot>(node));
} else {
fatal_error(fmt::format(
"Unsupported plot type '{}' in plot {}", type_str, plot_desc));
}
model::plot_map[model::plots.back()->id()] = model::plots.size() - 1;
} else {
fatal_error(fmt::format("Must specify plot type in plot {}", plot_desc));
}
}
}
void free_memory_plot()
{
model::plots.clear();
model::plot_map.clear();
}
// creates an image based on user input from a plots.xml <plot>
// specification in the PNG/PPM format
ImageData Plot::create_image() const
{
size_t width = pixels()[0];
size_t height = pixels()[1];
ImageData data({width, height}, not_found_);
// generate ids for the plot
auto ids = get_map<IdData>();
// assign colors
for (size_t y = 0; y < height; y++) {
for (size_t x = 0; x < width; x++) {
int idx = color_by_ == PlotColorBy::cells ? 0 : 2;
auto id = ids.data_(y, x, idx);
// no setting needed if not found
if (id == NOT_FOUND) {
continue;
}
if (id == OVERLAP) {
data(x, y) = overlap_color_;
continue;
}
if (PlotColorBy::cells == color_by_) {
data(x, y) = colors_[model::cell_map[id]];
} else if (PlotColorBy::mats == color_by_) {
if (id == MATERIAL_VOID) {
data(x, y) = WHITE;
continue;
}
data(x, y) = colors_[model::material_map[id]];
} // color_by if-else
}
}
// draw mesh lines if present
if (index_meshlines_mesh_ >= 0) {
draw_mesh_lines(data);
}
return data;
}
void PlottableInterface::set_id(pugi::xml_node plot_node)
{
int id {C_NONE};
if (check_for_node(plot_node, "id")) {
id = std::stoi(get_node_value(plot_node, "id"));
}
try {
set_id(id);
} catch (const std::runtime_error& e) {
fatal_error(e.what());
}
}
void PlottableInterface::set_id(int id)
{
if (id < 0 && id != C_NONE) {
throw std::runtime_error {fmt::format("Invalid plot ID: {}", id)};
}
if (id == C_NONE) {
id = 1;
for (const auto& p : model::plots) {
id = std::max(id, p->id() + 1);
}
}
if (id_ == id)
return;
// Check to make sure this ID doesn't already exist
if (model::plot_map.find(id) != model::plot_map.end()) {
throw std::runtime_error {
fmt::format("Two or more plots use the same unique ID: {}", id)};
}
id_ = id;
}
// Checks if png or ppm is already present
bool file_extension_present(
const std::string& filename, const std::string& extension)
{
std::string file_extension_if_present =
filename.substr(filename.find_last_of(".") + 1);
if (file_extension_if_present == extension)
return true;
return false;
}
void Plot::set_output_path(pugi::xml_node plot_node)
{
// Set output file path
std::string filename;
if (check_for_node(plot_node, "filename")) {
filename = get_node_value(plot_node, "filename");
} else {
filename = fmt::format("plot_{}", id());
}
const std::string dir_if_present =
filename.substr(0, filename.find_last_of("/") + 1);
if (dir_if_present.size() > 0 && !dir_exists(dir_if_present)) {
fatal_error(fmt::format("Directory '{}' does not exist!", dir_if_present));
}
// add appropriate file extension to name
switch (type_) {
case PlotType::slice:
#ifdef USE_LIBPNG
if (!file_extension_present(filename, "png"))
filename.append(".png");
#else
if (!file_extension_present(filename, "ppm"))
filename.append(".ppm");
#endif
break;
case PlotType::voxel:
if (!file_extension_present(filename, "h5"))
filename.append(".h5");
break;
}
path_plot_ = filename;
// Copy plot pixel size
vector<int> pxls = get_node_array<int>(plot_node, "pixels");
if (PlotType::slice == type_) {
if (pxls.size() == 2) {
pixels()[0] = pxls[0];
pixels()[1] = pxls[1];
} else {
fatal_error(
fmt::format("<pixels> must be length 2 in slice plot {}", id()));
}
} else if (PlotType::voxel == type_) {
if (pxls.size() == 3) {
pixels()[0] = pxls[0];
pixels()[1] = pxls[1];
pixels()[2] = pxls[2];
} else {
fatal_error(
fmt::format("<pixels> must be length 3 in voxel plot {}", id()));
}
}
}
void PlottableInterface::set_bg_color(pugi::xml_node plot_node)
{
// Copy plot background color
if (check_for_node(plot_node, "background")) {
vector<int> bg_rgb = get_node_array<int>(plot_node, "background");
if (bg_rgb.size() == 3) {
not_found_ = bg_rgb;
} else {
fatal_error(fmt::format("Bad background RGB in plot {}", id()));
}
}
}
void Plot::set_basis(pugi::xml_node plot_node)
{
// Copy plot basis
if (PlotType::slice == type_) {
std::string pl_basis = "xy";
if (check_for_node(plot_node, "basis")) {
pl_basis = get_node_value(plot_node, "basis", true);
}
if ("xy" == pl_basis) {
basis_ = PlotBasis::xy;
} else if ("xz" == pl_basis) {
basis_ = PlotBasis::xz;
} else if ("yz" == pl_basis) {
basis_ = PlotBasis::yz;
} else {
fatal_error(
fmt::format("Unsupported plot basis '{}' in plot {}", pl_basis, id()));
}
}
}
void Plot::set_origin(pugi::xml_node plot_node)
{
// Copy plotting origin
auto pl_origin = get_node_array<double>(plot_node, "origin");
if (pl_origin.size() == 3) {
origin_ = pl_origin;
} else {
fatal_error(fmt::format("Origin must be length 3 in plot {}", id()));
}
}
void Plot::set_width(pugi::xml_node plot_node)
{
// Copy plotting width
vector<double> pl_width = get_node_array<double>(plot_node, "width");
if (PlotType::slice == type_) {
if (pl_width.size() == 2) {
width_.x = pl_width[0];
width_.y = pl_width[1];
} else {
fatal_error(
fmt::format("<width> must be length 2 in slice plot {}", id()));
}
} else if (PlotType::voxel == type_) {
if (pl_width.size() == 3) {
pl_width = get_node_array<double>(plot_node, "width");
width_ = pl_width;
} else {
fatal_error(
fmt::format("<width> must be length 3 in voxel plot {}", id()));
}
}
}
void PlottableInterface::set_universe(pugi::xml_node plot_node)
{
// Copy plot universe level
if (check_for_node(plot_node, "level")) {
level_ = std::stoi(get_node_value(plot_node, "level"));
if (level_ < 0) {
fatal_error(fmt::format("Bad universe level in plot {}", id()));
}
} else {
level_ = PLOT_LEVEL_LOWEST;
}
}
void PlottableInterface::set_color_by(pugi::xml_node plot_node)
{
// Copy plot color type
std::string pl_color_by = "cell";
if (check_for_node(plot_node, "color_by")) {
pl_color_by = get_node_value(plot_node, "color_by", true);
}
if ("cell" == pl_color_by) {
color_by_ = PlotColorBy::cells;
} else if ("material" == pl_color_by) {
color_by_ = PlotColorBy::mats;
} else {
fatal_error(fmt::format(
"Unsupported plot color type '{}' in plot {}", pl_color_by, id()));
}
}
void PlottableInterface::set_default_colors()
{
// Copy plot color type and initialize all colors randomly
if (PlotColorBy::cells == color_by_) {
colors_.resize(model::cells.size());
} else if (PlotColorBy::mats == color_by_) {
colors_.resize(model::materials.size());
}
for (auto& c : colors_) {
c = random_color();
// make sure we don't interfere with some default colors
while (c == RED || c == WHITE) {
c = random_color();
}
}
}
void PlottableInterface::set_user_colors(pugi::xml_node plot_node)
{
for (auto cn : plot_node.children("color")) {
// Make sure 3 values are specified for RGB
vector<int> user_rgb = get_node_array<int>(cn, "rgb");
if (user_rgb.size() != 3) {
fatal_error(fmt::format("Bad RGB in plot {}", id()));
}
// Ensure that there is an id for this color specification
int col_id;
if (check_for_node(cn, "id")) {
col_id = std::stoi(get_node_value(cn, "id"));
} else {
fatal_error(fmt::format(
"Must specify id for color specification in plot {}", id()));
}
// Add RGB
if (PlotColorBy::cells == color_by_) {
if (model::cell_map.find(col_id) != model::cell_map.end()) {
col_id = model::cell_map[col_id];
colors_[col_id] = user_rgb;
} else {
warning(fmt::format(
"Could not find cell {} specified in plot {}", col_id, id()));
}
} else if (PlotColorBy::mats == color_by_) {
if (model::material_map.find(col_id) != model::material_map.end()) {
col_id = model::material_map[col_id];
colors_[col_id] = user_rgb;
} else {
warning(fmt::format(
"Could not find material {} specified in plot {}", col_id, id()));
}
}
} // color node loop
}
void Plot::set_meshlines(pugi::xml_node plot_node)
{
// Deal with meshlines
pugi::xpath_node_set mesh_line_nodes = plot_node.select_nodes("meshlines");
if (!mesh_line_nodes.empty()) {
if (PlotType::voxel == type_) {
warning(fmt::format("Meshlines ignored in voxel plot {}", id()));
}
if (mesh_line_nodes.size() == 1) {
// Get first meshline node
pugi::xml_node meshlines_node = mesh_line_nodes[0].node();
// Check mesh type
std::string meshtype;
if (check_for_node(meshlines_node, "meshtype")) {
meshtype = get_node_value(meshlines_node, "meshtype");
} else {
fatal_error(fmt::format(
"Must specify a meshtype for meshlines specification in plot {}",
id()));
}
// Ensure that there is a linewidth for this meshlines specification
std::string meshline_width;
if (check_for_node(meshlines_node, "linewidth")) {
meshline_width = get_node_value(meshlines_node, "linewidth");
meshlines_width_ = std::stoi(meshline_width);
} else {
fatal_error(fmt::format(
"Must specify a linewidth for meshlines specification in plot {}",
id()));
}
// Check for color
if (check_for_node(meshlines_node, "color")) {
// Check and make sure 3 values are specified for RGB
vector<int> ml_rgb = get_node_array<int>(meshlines_node, "color");
if (ml_rgb.size() != 3) {
fatal_error(
fmt::format("Bad RGB for meshlines color in plot {}", id()));
}
meshlines_color_ = ml_rgb;
}
// Set mesh based on type
if ("ufs" == meshtype) {
if (!simulation::ufs_mesh) {
fatal_error(
fmt::format("No UFS mesh for meshlines on plot {}", id()));
} else {
for (int i = 0; i < model::meshes.size(); ++i) {
if (const auto* m =
dynamic_cast<const RegularMesh*>(model::meshes[i].get())) {
if (m == simulation::ufs_mesh) {
index_meshlines_mesh_ = i;
}
}
}
if (index_meshlines_mesh_ == -1)
fatal_error("Could not find the UFS mesh for meshlines plot");
}
} else if ("entropy" == meshtype) {
if (!simulation::entropy_mesh) {
fatal_error(
fmt::format("No entropy mesh for meshlines on plot {}", id()));
} else {
for (int i = 0; i < model::meshes.size(); ++i) {
if (const auto* m =
dynamic_cast<const RegularMesh*>(model::meshes[i].get())) {
if (m == simulation::entropy_mesh) {
index_meshlines_mesh_ = i;
}
}
}
if (index_meshlines_mesh_ == -1)
fatal_error("Could not find the entropy mesh for meshlines plot");
}
} else if ("tally" == meshtype) {
// Ensure that there is a mesh id if the type is tally
int tally_mesh_id;
if (check_for_node(meshlines_node, "id")) {
tally_mesh_id = std::stoi(get_node_value(meshlines_node, "id"));
} else {
std::stringstream err_msg;
fatal_error(fmt::format("Must specify a mesh id for meshlines tally "
"mesh specification in plot {}",
id()));
}
// find the tally index
int idx;
int err = openmc_get_mesh_index(tally_mesh_id, &idx);
if (err != 0) {
fatal_error(fmt::format("Could not find mesh {} specified in "
"meshlines for plot {}",
tally_mesh_id, id()));
}
index_meshlines_mesh_ = idx;
} else {
fatal_error(fmt::format("Invalid type for meshlines on plot {}", id()));
}
} else {
fatal_error(fmt::format("Mutliple meshlines specified in plot {}", id()));
}
}
}
void PlottableInterface::set_mask(pugi::xml_node plot_node)
{
// Deal with masks
pugi::xpath_node_set mask_nodes = plot_node.select_nodes("mask");
if (!mask_nodes.empty()) {
if (mask_nodes.size() == 1) {
// Get pointer to mask
pugi::xml_node mask_node = mask_nodes[0].node();
// Determine how many components there are and allocate
vector<int> iarray = get_node_array<int>(mask_node, "components");
if (iarray.size() == 0) {
fatal_error(
fmt::format("Missing <components> in mask of plot {}", id()));
}
// First we need to change the user-specified identifiers to indices
// in the cell and material arrays
for (auto& col_id : iarray) {
if (PlotColorBy::cells == color_by_) {
if (model::cell_map.find(col_id) != model::cell_map.end()) {
col_id = model::cell_map[col_id];
} else {
fatal_error(fmt::format("Could not find cell {} specified in the "
"mask in plot {}",
col_id, id()));
}
} else if (PlotColorBy::mats == color_by_) {
if (model::material_map.find(col_id) != model::material_map.end()) {
col_id = model::material_map[col_id];
} else {
fatal_error(fmt::format("Could not find material {} specified in "
"the mask in plot {}",
col_id, id()));
}
}
}
// Alter colors based on mask information
for (int j = 0; j < colors_.size(); j++) {
if (contains(iarray, j)) {
if (check_for_node(mask_node, "background")) {
vector<int> bg_rgb = get_node_array<int>(mask_node, "background");
colors_[j] = bg_rgb;
} else {
colors_[j] = WHITE;
}
}
}
} else {
fatal_error(fmt::format("Mutliple masks specified in plot {}", id()));
}
}
}
void PlottableInterface::set_overlap_color(pugi::xml_node plot_node)
{
color_overlaps_ = false;
if (check_for_node(plot_node, "show_overlaps")) {
color_overlaps_ = get_node_value_bool(plot_node, "show_overlaps");
// check for custom overlap color
if (check_for_node(plot_node, "overlap_color")) {
if (!color_overlaps_) {
warning(fmt::format(
"Overlap color specified in plot {} but overlaps won't be shown.",
id()));
}
vector<int> olap_clr = get_node_array<int>(plot_node, "overlap_color");
if (olap_clr.size() == 3) {
overlap_color_ = olap_clr;
} else {
fatal_error(fmt::format("Bad overlap RGB in plot {}", id()));
}
}
}
// make sure we allocate the vector for counting overlap checks if
// they're going to be plotted
if (color_overlaps_ && settings::run_mode == RunMode::PLOTTING) {
settings::check_overlaps = true;
model::overlap_check_count.resize(model::cells.size(), 0);
}
}
PlottableInterface::PlottableInterface(pugi::xml_node plot_node)
{
set_id(plot_node);
set_bg_color(plot_node);
set_universe(plot_node);
set_color_by(plot_node);
set_default_colors();
set_user_colors(plot_node);
set_mask(plot_node);
set_overlap_color(plot_node);
}
Plot::Plot(pugi::xml_node plot_node, PlotType type)
: PlottableInterface(plot_node), type_(type), index_meshlines_mesh_ {-1}
{
set_output_path(plot_node);
set_basis(plot_node);
set_origin(plot_node);
set_width(plot_node);
set_meshlines(plot_node);
slice_level_ = level_; // Copy level employed in SlicePlotBase::get_map
slice_color_overlaps_ = color_overlaps_;
}
//==============================================================================
// OUTPUT_PPM writes out a previously generated image to a PPM file
//==============================================================================
void output_ppm(const std::string& filename, const ImageData& data)
{
// Open PPM file for writing
std::string fname = filename;
fname = strtrim(fname);
std::ofstream of;
of.open(fname);
// Write header
of << "P6\n";
of << data.shape(0) << " " << data.shape(1) << "\n";
of << "255\n";
of.close();
of.open(fname, std::ios::binary | std::ios::app);
// Write color for each pixel
for (int y = 0; y < data.shape(1); y++) {
for (int x = 0; x < data.shape(0); x++) {
RGBColor rgb = data(x, y);
of << rgb.red << rgb.green << rgb.blue;
}
}
of << "\n";
}
//==============================================================================
// OUTPUT_PNG writes out a previously generated image to a PNG file
//==============================================================================
#ifdef USE_LIBPNG
void output_png(const std::string& filename, const ImageData& data)
{
// Open PNG file for writing
std::string fname = filename;
fname = strtrim(fname);
auto fp = std::fopen(fname.c_str(), "wb");
// Initialize write and info structures
auto png_ptr =
png_create_write_struct(PNG_LIBPNG_VER_STRING, nullptr, nullptr, nullptr);
auto info_ptr = png_create_info_struct(png_ptr);
// Setup exception handling
if (setjmp(png_jmpbuf(png_ptr)))
fatal_error("Error during png creation");
png_init_io(png_ptr, fp);
// Write header (8 bit colour depth)
int width = data.shape(0);
int height = data.shape(1);
png_set_IHDR(png_ptr, info_ptr, width, height, 8, PNG_COLOR_TYPE_RGB,
PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
png_write_info(png_ptr, info_ptr);
// Allocate memory for one row (3 bytes per pixel - RGB)
std::vector<png_byte> row(3 * width);
// Write color for each pixel
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
RGBColor rgb = data(x, y);
row[3 * x] = rgb.red;
row[3 * x + 1] = rgb.green;
row[3 * x + 2] = rgb.blue;
}
png_write_row(png_ptr, row.data());
}
// End write
png_write_end(png_ptr, nullptr);
// Clean up data structures
std::fclose(fp);
png_free_data(png_ptr, info_ptr, PNG_FREE_ALL, -1);
png_destroy_write_struct(&png_ptr, &info_ptr);
}
#endif
//==============================================================================
// DRAW_MESH_LINES draws mesh line boundaries on an image
//==============================================================================
void Plot::draw_mesh_lines(ImageData& data) const
{
RGBColor rgb;
rgb = meshlines_color_;
int ax1, ax2;
switch (basis_) {
case PlotBasis::xy:
ax1 = 0;
ax2 = 1;
break;
case PlotBasis::xz:
ax1 = 0;
ax2 = 2;
break;
case PlotBasis::yz:
ax1 = 1;
ax2 = 2;
break;
default:
UNREACHABLE();
}
Position ll_plot {origin_};
Position ur_plot {origin_};
ll_plot[ax1] -= width_[0] / 2.;
ll_plot[ax2] -= width_[1] / 2.;
ur_plot[ax1] += width_[0] / 2.;
ur_plot[ax2] += width_[1] / 2.;
Position width = ur_plot - ll_plot;
// Find the (axis-aligned) lines of the mesh that intersect this plot.
auto axis_lines =
model::meshes[index_meshlines_mesh_]->plot(ll_plot, ur_plot);
// Find the bounds along the second axis (accounting for low-D meshes).
int ax2_min, ax2_max;
if (axis_lines.second.size() > 0) {
double frac = (axis_lines.second.back() - ll_plot[ax2]) / width[ax2];
ax2_min = (1.0 - frac) * pixels()[1];
if (ax2_min < 0)
ax2_min = 0;
frac = (axis_lines.second.front() - ll_plot[ax2]) / width[ax2];
ax2_max = (1.0 - frac) * pixels()[1];
if (ax2_max > pixels()[1])
ax2_max = pixels()[1];
} else {
ax2_min = 0;
ax2_max = pixels()[1];
}
// Iterate across the first axis and draw lines.
for (auto ax1_val : axis_lines.first) {
double frac = (ax1_val - ll_plot[ax1]) / width[ax1];
int ax1_ind = frac * pixels()[0];
for (int ax2_ind = ax2_min; ax2_ind < ax2_max; ++ax2_ind) {
for (int plus = 0; plus <= meshlines_width_; plus++) {
if (ax1_ind + plus >= 0 && ax1_ind + plus < pixels()[0])
data(ax1_ind + plus, ax2_ind) = rgb;
if (ax1_ind - plus >= 0 && ax1_ind - plus < pixels()[0])
data(ax1_ind - plus, ax2_ind) = rgb;
}
}
}
// Find the bounds along the first axis.
int ax1_min, ax1_max;
if (axis_lines.first.size() > 0) {
double frac = (axis_lines.first.front() - ll_plot[ax1]) / width[ax1];
ax1_min = frac * pixels()[0];
if (ax1_min < 0)
ax1_min = 0;
frac = (axis_lines.first.back() - ll_plot[ax1]) / width[ax1];
ax1_max = frac * pixels()[0];
if (ax1_max > pixels()[0])
ax1_max = pixels()[0];
} else {
ax1_min = 0;
ax1_max = pixels()[0];
}
// Iterate across the second axis and draw lines.
for (auto ax2_val : axis_lines.second) {
double frac = (ax2_val - ll_plot[ax2]) / width[ax2];
int ax2_ind = (1.0 - frac) * pixels()[1];
for (int ax1_ind = ax1_min; ax1_ind < ax1_max; ++ax1_ind) {
for (int plus = 0; plus <= meshlines_width_; plus++) {
if (ax2_ind + plus >= 0 && ax2_ind + plus < pixels()[1])
data(ax1_ind, ax2_ind + plus) = rgb;
if (ax2_ind - plus >= 0 && ax2_ind - plus < pixels()[1])
data(ax1_ind, ax2_ind - plus) = rgb;
}
}
}
}
/* outputs a binary file that can be input into silomesh for 3D geometry
* visualization. It works the same way as create_image by dragging a particle
* across the geometry for the specified number of voxels. The first 3 int's in
* the binary are the number of x, y, and z voxels. The next 3 double's are
* the widths of the voxels in the x, y, and z directions. The next 3 double's
* are the x, y, and z coordinates of the lower left point. Finally the binary
* is filled with entries of four int's each. Each 'row' in the binary contains
* four int's: 3 for x,y,z position and 1 for cell or material id. For 1
* million voxels this produces a file of approximately 15MB.
*/
void Plot::create_voxel() const
{
// compute voxel widths in each direction
array<double, 3> vox;
vox[0] = width_[0] / static_cast<double>(pixels()[0]);
vox[1] = width_[1] / static_cast<double>(pixels()[1]);
vox[2] = width_[2] / static_cast<double>(pixels()[2]);
// initial particle position
Position ll = origin_ - width_ / 2.;
// Open binary plot file for writing
std::ofstream of;
std::string fname = std::string(path_plot_);
fname = strtrim(fname);
hid_t file_id = file_open(fname, 'w');
// write header info
write_attribute(file_id, "filetype", "voxel");
write_attribute(file_id, "version", VERSION_VOXEL);
write_attribute(file_id, "openmc_version", VERSION);
#ifdef GIT_SHA1
write_attribute(file_id, "git_sha1", GIT_SHA1);
#endif
// Write current date and time
write_attribute(file_id, "date_and_time", time_stamp().c_str());
array<int, 3> h5_pixels;
std::copy(pixels().begin(), pixels().end(), h5_pixels.begin());
write_attribute(file_id, "num_voxels", h5_pixels);
write_attribute(file_id, "voxel_width", vox);
write_attribute(file_id, "lower_left", ll);