kopia lustrzana https://git.sr.ht/~michalr/hamlocator
Conversion of Maidenhead to approx. location
Michał Rudowicz
rodzic
ee7b194b78
commit
2a5843af1f
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@ -19,11 +19,11 @@
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namespace Hamlocator {
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public class Application : Adw.Application {
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private Location location;
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private LocationToMaidenhead l2m;
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private MaidenheadConverter mc;
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public Application () {
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Object (application_id: "eu.fl9.hamlocator", flags: ApplicationFlags.FLAGS_NONE);
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l2m = new LocationToMaidenhead();
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mc = new MaidenheadConverter();
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}
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construct {
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@ -58,7 +58,7 @@ namespace Hamlocator {
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win.SetLabel("unable to\nget location");
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win.SetDetails(@"Reason:\n$(pos.err)");
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} else {
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win.SetLabel(l2m.get_locator(pos.loc));
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win.SetLabel(mc.location_to_maidenhead(pos.loc));
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win.SetDetails(@"lat: $(pos.loc.latitude)°\nlon: $(pos.loc.longitude)°");
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}
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win.SetRefreshButtonEnabled(true);
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@ -3,14 +3,13 @@
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// https://metacpan.org/release/MEH/Ham-Locator-0.1000/source/lib/Ham/Locator.pm
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namespace Hamlocator {
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public class LocationToMaidenhead : Object {
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private string l2m;
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public class MaidenheadConverter : Object {
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private const char[] L2M = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'};
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private const double[] M2L_MULTIPLIERS = {10.0, 1.0, 1.0/24.0, 1.0/240.0, 1.0/5760.0};
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public LocationToMaidenhead() {
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this.l2m = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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}
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public MaidenheadConverter() {}
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public string get_locator(GClue.Location pos) {
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public string location_to_maidenhead(GClue.Location pos) {
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double lat = pos.latitude + 90;
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double lon = pos.longitude + 180;
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@ -18,7 +17,7 @@ namespace Hamlocator {
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double lat1 = (lat / 10);
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double lon1 = (lon / 20);
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string loc1 = @"$(this.l2m[Math.lround(Math.floor(lon1))])$(this.l2m[Math.lround(Math.floor(lat1))])";
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string loc1 = @"$(L2M[Math.lround(Math.floor(lon1))])$(L2M[Math.lround(Math.floor(lat1))])";
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// Square
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double lat2 = 10 * (lat1 - Math.floor(lat1));
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@ -30,9 +29,40 @@ namespace Hamlocator {
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double lat3 = 24 * (lat2 - Math.floor(lat2));
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double lon3 = 24 * (lon2 - Math.floor(lon2));
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string loc3 = @"$(this.l2m[Math.lround(Math.floor(lon3))])$(this.l2m[Math.lround(Math.floor(lat3))])".down();
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string loc3 = @"$(L2M[Math.lround(Math.floor(lon3))])$(L2M[Math.lround(Math.floor(lat3))])".down();
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return @"$loc1$loc2$loc3";
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}
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public GClue.Location? maidenhead_to_location(string locator) {
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double lat = 0.0;
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double lon = 0.0;
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if (locator.length % 2 != 0) {
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warning("Locator needs to be of even length");
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return null;
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}
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long i = 0; // where we are in the locator
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long mult_i = 0; // which multiplier are we currently using
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var upLocator = locator.up();
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while (i < upLocator.length) {
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// letters
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lon += (upLocator[i++] - 'A') * 2.0 * M2L_MULTIPLIERS[mult_i];
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lat += (upLocator[i++] - 'A') * M2L_MULTIPLIERS[mult_i];
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mult_i++;
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if (i >= upLocator.length) { break; }
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// numbers
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lon += (upLocator[i++] - '0') * 2.0 * M2L_MULTIPLIERS[mult_i];
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lat += (upLocator[i++] - '0') * M2L_MULTIPLIERS[mult_i];
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mult_i++;
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}
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// move to the center of the box
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mult_i--;
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lon += 0.5 * 2.0 * M2L_MULTIPLIERS[mult_i];
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lat += 0.5 * M2L_MULTIPLIERS[mult_i];
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return new SimpleLocation((lat - 90.0), (lon - 180.0));
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}
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}
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}
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@ -2,14 +2,14 @@ hamlocator_sources = [
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'window.vala',
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'application.vala',
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'location.vala',
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'maidenhead.vala'
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'maidenhead.vala',
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'simple_location.vala'
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]
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test_sources = [
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'tests' / 'main.vala',
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'tests' / 'testcase.vala',
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'tests' / 'maidenhead_tests.vala',
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'tests' / 'fake_geoclue_location.vala'
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]
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hamlocator_deps = [
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@ -1,37 +1,37 @@
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public class FakeGeoclueLocation : GLib.Object, GClue.Location {
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public class SimpleLocation : GLib.Object, GClue.Location {
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private double lat;
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private double lon;
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public FakeGeoclueLocation(double lat, double lon) {
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public SimpleLocation(double lat, double lon) {
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this.lat = lat;
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this.lon = lon;
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}
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public override double accuracy {
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public override double accuracy {
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get { return double.NAN; }
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set { assert(false); }
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}
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public override double altitude {
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public override double altitude {
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get { return double.NAN; }
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set { assert(false); }
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}
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public override string description { owned
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public override string description { owned
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get { return ""; }
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set { assert(false); }
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}
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public override double heading {
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public override double heading {
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get { return double.NAN; }
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set { assert(false); }
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}
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public override double latitude {
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public override double latitude {
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get { return this.lat; }
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set { assert(false); }
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}
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public override double longitude {
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public override double longitude {
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get { return this.lon; }
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set { assert(false); }
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}
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public override double speed {
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public override double speed {
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get { return double.NAN; }
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set { assert(false); }
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}
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@ -1,45 +1,51 @@
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public class MaidenheadTests : TestCase {
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public MaidenheadTests() {
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base("Maidenhead Tests");
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add_test_location(0.0, 0.0, "JJ00aa");
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add_test_location(90.0, 0.0, "JS00aa");
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add_test_location(0.0, 180.0, "SJ00aa");
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add_test_location(90.0, 180.0, "SS00aa");
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add_test_location(-90.0, 0.0, "JA00aa");
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add_test_location(0.0, -180.0, "AJ00aa");
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add_test_location(-90.0, -180.0, "AA00aa");
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add_test_location(90.0, -180.0, "AS00aa");
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add_test_location(-90.0, 180.0, "SA00aa");
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add_test_maidenhead(0.0, 0.0, "JJ00aa");
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add_test_maidenhead(90.0, 0.0, "JS00aa");
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add_test_maidenhead(0.0, 180.0, "SJ00aa");
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add_test_maidenhead(90.0, 180.0, "SS00aa");
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add_test_maidenhead(-90.0, 0.0, "JA00aa");
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add_test_maidenhead(0.0, -180.0, "AJ00aa");
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add_test_maidenhead(-90.0, -180.0, "AA00aa");
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add_test_maidenhead(90.0, -180.0, "AS00aa");
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add_test_maidenhead(-90.0, 180.0, "SA00aa");
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add_test_location(51.0, 17.0, "JO80lx");
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add_test_location(51.1, 17.1, "JO81nc");
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add_test_location(51.2, 17.2, "JO81oe");
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add_test_location(51.3, 17.3, "JO81ph");
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add_test_location(51.4, 17.4, "JO81qj");
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add_test_location(51.5, 17.5, "JO81sm");
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add_test_location(51.6, 17.6, "JO81to");
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add_test_location(51.7, 17.7, "JO81uq");
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add_test_location(51.8, 17.8, "JO81vt");
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add_test_location(51.9, 17.9, "JO81wv");
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add_test_location(51.99, 17.99, "JO81xx");
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add_test_maidenhead(51.0, 17.0, "JO80lx");
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add_test_maidenhead(51.1, 17.1, "JO81nc");
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add_test_maidenhead(51.2, 17.2, "JO81oe");
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add_test_maidenhead(51.3, 17.3, "JO81ph");
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add_test_maidenhead(51.4, 17.4, "JO81qj");
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add_test_maidenhead(51.5, 17.5, "JO81sm");
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add_test_maidenhead(51.6, 17.6, "JO81to");
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add_test_maidenhead(51.7, 17.7, "JO81uq");
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add_test_maidenhead(51.8, 17.8, "JO81vt");
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add_test_maidenhead(51.9, 17.9, "JO81wv");
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add_test_maidenhead(51.99, 17.99, "JO81xx");
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add_test_location(51.1205, 17.0261, "JO81mc");
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add_test_location(37.1104, -5.4932, "IM77gc");
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add_test_location(-30.5377, 22.8516, "KF19kl");
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add_test_location(-27.4613, -65.0391, "FG72lm");
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add_test_location(-24.6168, 136.4063, "PG85ej");
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add_test_maidenhead(51.1205, 17.0261, "JO81mc");
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add_test_maidenhead(37.1104, -5.4932, "IM77gc");
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add_test_maidenhead(-30.5377, 22.8516, "KF19kl");
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add_test_maidenhead(-27.4613, -65.0391, "FG72lm");
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add_test_maidenhead(-24.6168, 136.4063, "PG85ej");
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}
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protected Hamlocator.LocationToMaidenhead tested;
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protected Hamlocator.MaidenheadConverter tested;
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public override void set_up() {
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this.tested = new Hamlocator.LocationToMaidenhead();
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this.tested = new Hamlocator.MaidenheadConverter();
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}
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public void add_test_location(double lat, double lon, string expected) {
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add_test (@"Expect location lat:$lat lon:$lon to be $expected", () => {
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GClue.Location pos = new FakeGeoclueLocation(lat, lon);
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assert_cmpstr(this.tested.get_locator(pos), EQ, expected);
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public void add_test_maidenhead(double lat, double lon, string locator) {
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add_test (@"Expect location lat:$lat lon:$lon to be $locator", () => {
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GClue.Location pos = new SimpleLocation(lat, lon);
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assert_cmpstr(this.tested.location_to_maidenhead(pos), EQ, locator);
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});
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add_test (@"Expect location at $locator to be approx. lat:$lat lon:$lon", () => {
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GClue.Location pos = this.tested.maidenhead_to_location(locator);
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assert_nonnull(pos);
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assert_cmpfloat_with_epsilon(pos.latitude, lat, (1.0/24.0));
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assert_cmpfloat_with_epsilon(pos.longitude, lon, (2.0/24.0));
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});
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}
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}
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