mirror of
https://github.com/SatDump/SatDump
synced 2026-08-13 17:47:30 -04:00
248 lines
No EOL
7.7 KiB
C++
248 lines
No EOL
7.7 KiB
C++
/**********************************************************************
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* This file is used for testing random stuff without running the
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* whole of SatDump, which comes in handy for debugging individual
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* elements before putting them all together in modules...
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*
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* If you are an user, ignore this file which will not be built by
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* default, and if you're a developper in need of doing stuff here...
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* Go ahead!
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*
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* Don't judge the code you might see in there! :)
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**********************************************************************/
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#include "logger.h"
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#include "common/image/image.h"
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#include "products/image_products.h"
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#include "common/tracking/tracking.h"
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#include "common/geodetic/euler_raytrace.h"
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#include "common/geodetic/vincentys_calculations.h"
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#include "common/map/map_drawer.h"
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#include "resources.h"
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#include <iostream>
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#include "common/projection/warp/warp.h"
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struct SingleLineCfg
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{
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satdump::TLE tles;
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std::vector<double> timestamps;
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int image_width;
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float scan_angle;
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int gcp_spacing_x = 100;
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int gcp_spacing_y = 100;
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double timestamp_offset = 0;
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bool invert_scan = false;
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float roll_offset = 0;
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float pitch_offset = 0;
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float yaw_offset = 0;
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};
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std::vector<satdump::projection::GCP> compute_gcps(SingleLineCfg cfg)
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{
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std::vector<satdump::projection::GCP> gcps;
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satdump::SatelliteTracker sat_tracker(cfg.tles);
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std::vector<int> values;
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for (int x = 0; x < cfg.image_width; x += cfg.gcp_spacing_x)
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values.push_back(x);
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values.push_back(cfg.image_width - 1);
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int y = 0;
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bool last_was_invalid = false;
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for (double timestamp : cfg.timestamps)
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{
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if (timestamp == -1)
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{
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last_was_invalid = true;
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continue;
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}
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timestamp += cfg.timestamp_offset;
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geodetic::geodetic_coords_t pos_curr = sat_tracker.get_sat_position_at(timestamp); // Current position
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geodetic::geodetic_coords_t pos_next = sat_tracker.get_sat_position_at(timestamp + 1); // Upcoming position
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double az_angle = vincentys_inverse(pos_next, pos_curr).reverse_azimuth * RAD_TO_DEG;
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for (int x : values)
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{
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double final_x = !cfg.invert_scan ? (cfg.image_width - 1) - x : x;
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bool ascending = false;
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geodetic::euler_coords_t satellite_pointing;
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satellite_pointing.roll = -(((final_x - (cfg.image_width / 2.0)) / cfg.image_width) * cfg.scan_angle) + cfg.roll_offset;
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satellite_pointing.pitch = cfg.pitch_offset;
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satellite_pointing.yaw = (90 + (ascending ? cfg.yaw_offset : -cfg.yaw_offset)) - az_angle;
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geodetic::geodetic_coords_t ground_position;
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geodetic::raytrace_to_earth(pos_curr, satellite_pointing, ground_position);
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ground_position.toDegs();
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// logger->info("{:d} {:d} {:f} {:s}", x, y, pos_curr.lat, img_pro.get_tle().name);
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if (y % cfg.gcp_spacing_y == 0 || y + 1 == cfg.timestamps.size() || last_was_invalid)
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gcps.push_back({(double)x, (double)y, (double)ground_position.lon, (double)ground_position.lat});
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last_was_invalid = false;
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}
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y++;
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}
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return gcps;
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}
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class EquirectangularProjector
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{
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private:
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int image_height;
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int image_width;
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float top_left_lat;
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float top_left_lon;
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float bottom_right_lat;
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float bottom_right_lon;
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float covered_lat;
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float covered_lon;
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float offset_lat;
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float offset_lon;
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public:
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void init(int img_width, int img_height, float tl_lon, float tl_lat, float br_lon, float br_lat)
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{
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image_height = img_height;
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image_width = img_width;
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top_left_lat = tl_lat;
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top_left_lon = tl_lon;
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bottom_right_lat = br_lat;
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bottom_right_lon = br_lon;
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// Compute how much we cover on the input image
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covered_lat = abs(top_left_lat - bottom_right_lat);
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covered_lon = abs(top_left_lon - bottom_right_lon);
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// Compute the offset the top right corner has
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offset_lat = abs(top_left_lat - 90);
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offset_lon = abs(top_left_lon + 180);
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}
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void forward(float lon, float lat, int &x, int &y)
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{
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if (lat > top_left_lat || lat < bottom_right_lat || lon < top_left_lon || lon > bottom_right_lon)
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{
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x = y = -1;
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return;
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}
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lat = 180.0f - (lat + 90.0f);
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lon += 180;
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lat -= offset_lat;
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lon -= offset_lon;
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y = (lat / covered_lat) * image_height;
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x = (lon / covered_lon) * image_width;
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if (y < 0 || y >= image_height || x < 0 || x >= image_width)
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x = y = -1;
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}
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void reverse(int x, int y, float &lon, float &lat)
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{
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if (y < 0 || y >= image_height || x < 0 || x >= image_width)
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{
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lon = lat = -1;
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return;
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}
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lat = (y / (float)image_height) * covered_lat;
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lon = (x / (float)image_width) * covered_lon;
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lat += offset_lat;
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lon += offset_lon;
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lat = 180.0f - (lat + 90.0f);
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lon -= 180;
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if (lat > top_left_lat || lat < bottom_right_lat || lon < top_left_lon || lon > bottom_right_lon)
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lon = lat = -1;
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}
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};
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int main(int argc, char *argv[])
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{
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initLogger();
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satdump::ImageProducts img_pro;
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img_pro.load(argv[1]);
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SingleLineCfg metop_avhrr_cfg;
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metop_avhrr_cfg.tles = img_pro.get_tle();
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metop_avhrr_cfg.timestamps = img_pro.get_timestamps(0);
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metop_avhrr_cfg.image_width = 2048;
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metop_avhrr_cfg.timestamp_offset = -0.3;
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metop_avhrr_cfg.scan_angle = 110.6;
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metop_avhrr_cfg.roll_offset = -0.13;
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metop_avhrr_cfg.gcp_spacing_x = 100;
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metop_avhrr_cfg.gcp_spacing_y = 100;
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SingleLineCfg metop_mhs_cfg;
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metop_mhs_cfg.tles = img_pro.get_tle();
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metop_mhs_cfg.timestamps = img_pro.get_timestamps(0);
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metop_mhs_cfg.image_width = 90;
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metop_mhs_cfg.timestamp_offset = -2;
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metop_mhs_cfg.scan_angle = 100;
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metop_mhs_cfg.roll_offset = -1.1;
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metop_mhs_cfg.gcp_spacing_x = 5;
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metop_mhs_cfg.gcp_spacing_y = 5;
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std::vector<satdump::projection::GCP> gcps = compute_gcps(metop_avhrr_cfg);
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satdump::ImageCompositeCfg rgb_cfg;
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rgb_cfg.equation = "ch1, ch2, ch4"; // "(ch3 * 0.4 + ch2 * 0.6) * 2.2 - 0.15, ch2 * 2.2 - 0.15, ch1 * 2.2 - 0.15";
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rgb_cfg.equalize = true;
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satdump::warp::WarpOperation operation;
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operation.ground_control_points = gcps;
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operation.input_image = satdump::make_composite_from_product(img_pro, rgb_cfg);
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operation.output_width = 2048 * 8;
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operation.output_height = 1024 * 8;
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satdump::warp::ImageWarper warper;
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warper.op = operation;
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warper.update();
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satdump::warp::WarpResult result = warper.warp();
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logger->info("Drawing map...");
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EquirectangularProjector projector;
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projector.init(result.output_image.width(), result.output_image.height(), result.top_left.lon, result.top_left.lat, result.bottom_right.lon, result.bottom_right.lat);
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unsigned short color[3] = {0, 65535, 0};
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map::drawProjectedMapShapefile({resources::getResourcePath("maps/ne_10m_admin_0_countries.shp")},
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result.output_image,
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color,
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[operation, &result, &projector](float lat, float lon, int map_height2, int map_width2) -> std::pair<int, int>
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{
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int x, y;
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projector.forward(lon, lat, x, y);
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return {x, y};
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});
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// img_map.crop(p_x_min, p_y_min, p_x_max, p_y_max);
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logger->info("Saving...");
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result.output_image.save_png("test.png");
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} |