[29157] | 1 | /* Copyright 2013 Malcolm Herring
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| 2 | *
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| 3 | * This is free software: you can redistribute it and/or modify
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| 4 | * it under the terms of the GNU General Public License as published by
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| 5 | * the Free Software Foundation, version 3 of the License.
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| 6 | *
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| 7 | * For a copy of the GNU General Public License, see <http://www.gnu.org/licenses/>.
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| 8 | */
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| 9 |
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| 10 | package seamap;
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| 11 |
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[29199] | 12 | import java.awt.BasicStroke;
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[29202] | 13 | import java.awt.Color;
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| 14 | import java.awt.Font;
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[29174] | 15 | import java.awt.Graphics2D;
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[29202] | 16 | import java.awt.Rectangle;
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[29174] | 17 | import java.awt.RenderingHints;
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[29204] | 18 | import java.awt.geom.AffineTransform;
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[29199] | 19 | import java.awt.geom.GeneralPath;
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| 20 | import java.awt.geom.Path2D;
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[29174] | 21 | import java.awt.geom.Point2D;
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| 22 | import java.util.ArrayList;
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[29175] | 23 | import java.util.HashMap;
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[29157] | 24 |
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[29175] | 25 | import s57.S57att.Att;
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| 26 | import s57.S57obj.Obj;
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| 27 | import s57.S57val.*;
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| 28 | import s57.S57val;
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[29199] | 29 | import seamap.SeaMap;
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[29174] | 30 | import seamap.SeaMap.*;
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| 31 | import symbols.Symbols;
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| 32 | import symbols.Symbols.*;
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| 33 |
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| 34 | public class Renderer {
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| 35 |
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| 36 | static MapHelper helper;
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| 37 | static SeaMap map;
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| 38 | static double sScale;
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| 39 | static double tScale;
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| 40 | static Graphics2D g2;
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[29199] | 41 | static int zoom;
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[29174] | 42 |
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[29199] | 43 | public static void reRender(Graphics2D g, int z, double factor, SeaMap m, MapHelper h) {
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[29174] | 44 | g2 = g;
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[29199] | 45 | zoom = z;
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[29174] | 46 | helper = h;
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| 47 | map = m;
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| 48 | sScale = Symbols.symbolScale[zoom]*factor;
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| 49 | tScale = Symbols.textScale[zoom]*factor;
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| 50 | if (map != null) {
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| 51 | g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
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| 52 | g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_GASP);
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[29184] | 53 | Rules.rules(map, zoom);
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[29174] | 54 | }
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| 55 | }
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| 56 |
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[29184] | 57 | public static AttMap getAtts(Feature feature, Obj obj, int idx) {
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| 58 | HashMap<Integer, AttMap> objs = feature.objs.get(obj);
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[29175] | 59 | if (objs == null) return null;
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| 60 | else return objs.get(idx);
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| 61 | }
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| 62 |
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| 63 | public static Object getAttVal(Feature feature, Obj obj, int idx, Att att) {
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[29184] | 64 | AttMap atts = getAtts(feature, obj, idx);
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[29185] | 65 | if (atts == null) return S57val.nullVal(att);
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[29175] | 66 | else {
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| 67 | AttItem item = atts.get(att);
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| 68 | if (item == null) return S57val.nullVal(att);
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| 69 | return item.val;
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| 70 | }
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| 71 | }
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[29184] | 72 |
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[29215] | 73 | public static double signedArea(Feature feature) {
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[29185] | 74 | if (feature.flag == Fflag.AREA) {
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[29202] | 75 | ArrayList<Long> way;
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| 76 | if (map.mpolys.containsKey(feature.refs)) {
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| 77 | way = map.ways.get(map.mpolys.get(feature.refs));
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| 78 | } else {
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| 79 | way = map.ways.get(feature.refs);
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| 80 | }
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[29185] | 81 | Coord coord = map.nodes.get(way.get(0));
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[29198] | 82 | double llon = coord.lon;
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| 83 | double llat = coord.lat;
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[29189] | 84 | double sigma = 0.0;
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[29185] | 85 | for (long node : way) {
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| 86 | coord = map.nodes.get(node);
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[29198] | 87 | double lat = coord.lat;
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| 88 | double lon = coord.lon;
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[29189] | 89 | sigma += (lon * Math.sin(llat)) - (llon * Math.sin(lat));
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| 90 | llon = lon;
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| 91 | llat = lat;
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[29185] | 92 | }
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[29215] | 93 | return sigma;
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[29185] | 94 | }
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[29215] | 95 | return 0;
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[29185] | 96 | }
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| 97 |
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[29215] | 98 | public boolean handOfArea(Feature feature) {
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| 99 | return (signedArea(feature) < 0);
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| 100 | }
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| 101 |
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| 102 | public static double calcArea(Feature feature) {
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| 103 | return Math.abs(signedArea(feature)) * 3444 * 3444 / 2.0;
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| 104 | }
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| 105 |
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[29184] | 106 | public static Coord findCentroid(Feature feature) {
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[29185] | 107 | Coord coord;
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[29202] | 108 | ArrayList<Long> way;
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| 109 | if (map.mpolys.containsKey(feature.refs)) {
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[29206] | 110 | way = map.ways.get(map.mpolys.get(feature.refs).get(0));
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[29202] | 111 | } else {
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| 112 | way = map.ways.get(feature.refs);
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| 113 | }
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[29185] | 114 | switch (feature.flag) {
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| 115 | case NODE:
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| 116 | return map.nodes.get(feature.refs);
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[29206] | 117 | case LINE:
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[29185] | 118 | coord = map.nodes.get(way.get(1));
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| 119 | break;
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| 120 | case AREA:
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| 121 | default:
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| 122 | coord = map.nodes.get(way.get(0));
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| 123 | }
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| 124 | double slat = 0.0;
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[29184] | 125 | double slon = 0.0;
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| 126 | double sarc = 0.0;
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[29185] | 127 | double llat = coord.lat;
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| 128 | double llon = coord.lon;
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[29184] | 129 | for (long node : way) {
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[29185] | 130 | coord = map.nodes.get(node);
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| 131 | double lon = coord.lon;
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| 132 | double lat = coord.lat;
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[29198] | 133 | double arc = (Math.acos(Math.cos(lon-llon) * Math.cos(lat-llat)));
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[29185] | 134 | slat += (lat * arc);
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[29184] | 135 | slon += (lon * arc);
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| 136 | sarc += arc;
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[29185] | 137 | llat = lat;
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[29184] | 138 | llon = lon;
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| 139 | }
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| 140 | return map.new Coord((sarc > 0.0 ? slat/sarc : 0.0), (sarc > 0.0 ? slon/sarc : 0.0));
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| 141 | }
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[29175] | 142 |
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[29186] | 143 | public static void symbol(Feature feature, Symbol symbol, Obj obj, Delta delta) {
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[29184] | 144 | Point2D point = helper.getPoint(findCentroid(feature));
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[29199] | 145 | if (obj == null) {
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| 146 | Symbols.drawSymbol(g2, symbol, sScale, point.getX(), point.getY(), delta, null);
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| 147 | } else {
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| 148 | ArrayList<ColCOL> colours = (ArrayList<ColCOL>) getAttVal(feature, obj, 0, Att.COLOUR);
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| 149 | ArrayList<ColPAT> pattern = (ArrayList<ColPAT>) getAttVal(feature, obj, 0, Att.COLPAT);
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| 150 | Symbols.drawSymbol(g2, symbol, sScale, point.getX(), point.getY(), delta, new Scheme(pattern, colours));
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| 151 | }
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[29174] | 152 | }
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| 153 |
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[29204] | 154 | private static Rectangle symbolSize(Symbol symbol) {
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| 155 | Symbol ssymb = symbol;
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| 156 | while (ssymb != null) {
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| 157 | for (Instr item : symbol) {
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| 158 | if (item.type == Prim.BBOX) {
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| 159 | return (Rectangle) item.params;
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| 160 | }
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| 161 | if (item.type == Prim.SYMB) {
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[29206] | 162 | ssymb = ((SubSymbol)item.params).instr;
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[29204] | 163 | break;
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| 164 | }
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| 165 | }
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| 166 | if (ssymb == symbol)
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| 167 | break;
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| 168 | }
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| 169 | return null;
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| 170 | }
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| 171 |
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[29198] | 172 | public static void lineSymbols(Feature feature, Symbol prisymb, double space, Symbol secsymb, int ratio) {
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| 173 | if (feature.flag != Fflag.NODE) {
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[29204] | 174 | Rectangle prect = symbolSize(prisymb);
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| 175 | Rectangle srect = symbolSize(secsymb);
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| 176 | if (srect == null)
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| 177 | ratio = 0;
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| 178 | if (prect != null) {
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| 179 | ArrayList<Long> ways = new ArrayList<Long>();
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| 180 | double psize = Math.abs(prect.getY()) * sScale;
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| 181 | double ssize = (srect != null) ? Math.abs(srect.getY()) * sScale : 0;
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| 182 | if (map.outers.containsKey(feature.refs)) {
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| 183 | ways.addAll(map.mpolys.get(map.outers.get(feature.refs)));
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| 184 | } else {
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| 185 | if (map.mpolys.containsKey(feature.refs)) {
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| 186 | ways.addAll(map.mpolys.get(feature.refs));
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| 187 | } else {
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| 188 | ways.add(feature.refs);
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| 189 | }
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| 190 | }
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| 191 | Point2D prev = new Point2D.Double();
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| 192 | Point2D next = new Point2D.Double();
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| 193 | Point2D curr = new Point2D.Double();
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| 194 | Point2D succ = new Point2D.Double();
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| 195 | boolean gap = true;
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| 196 | boolean piv = false;
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| 197 | double len = 0;
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| 198 | double angle = 0;
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| 199 | int scount = ratio;
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| 200 | Symbol symbol = prisymb;
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| 201 | for (long way : ways) {
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| 202 | boolean first = true;
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| 203 | for (long node : map.ways.get(way)) {
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| 204 | prev = next;
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| 205 | next = helper.getPoint(map.nodes.get(node));
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| 206 | angle = Math.atan2(next.getY() - prev.getY(), next.getX() - prev.getX());
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| 207 | piv = true;
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| 208 | if (first) {
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| 209 | curr = succ = next;
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| 210 | gap = (space > 0);
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| 211 | scount = ratio;
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| 212 | symbol = prisymb;
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| 213 | len = gap ? psize * space * 0.5 : psize;
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| 214 | first = false;
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| 215 | } else {
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| 216 | while (curr.distance(next) >= len) {
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| 217 | if (piv) {
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[29205] | 218 | double rem = len;
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| 219 | double s = prev.distance(next);
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| 220 | double p = curr.distance(prev);
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[29207] | 221 | if ((s > 0) && (p > 0)) {
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[29205] | 222 | double n = curr.distance(next);
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[29207] | 223 | double theta = Math.acos((s * s + p * p - n * n) / 2 / s / p);
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| 224 | double phi = Math.asin(p / len * Math.sin(theta));
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| 225 | rem = len * Math.sin(Math.PI - theta - phi) / Math.sin(theta);
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[29205] | 226 | }
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| 227 | succ = new Point2D.Double(prev.getX() + (rem * Math.cos(angle)), prev.getY() + (rem * Math.sin(angle)));
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[29204] | 228 | piv = false;
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| 229 | } else {
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| 230 | succ = new Point2D.Double(curr.getX() + (len * Math.cos(angle)), curr.getY() + (len * Math.sin(angle)));
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| 231 | }
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| 232 | if (!gap) {
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[29205] | 233 | Symbols.drawSymbol(g2, symbol, sScale, curr.getX(), curr.getY(),
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[29207] | 234 | new Delta(Handle.BC, AffineTransform.getRotateInstance(Math.atan2((succ.getY() - curr.getY()), (succ.getX() - curr.getX()) + Math.toRadians(90)))), null);
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[29204] | 235 | }
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| 236 | if (space > 0) gap = !gap;
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| 237 | curr = succ;
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| 238 | len = gap ? (psize * space) : (--scount == 0) ? ssize : psize;
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| 239 | if (scount == 0) {
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| 240 | symbol = secsymb;
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| 241 | scount = ratio;
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| 242 | } else {
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| 243 | symbol = prisymb;
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| 244 | }
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| 245 | }
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| 246 | }
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| 247 | }
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| 248 | }
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[29198] | 249 | }
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| 250 | }
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| 251 | }
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[29204] | 252 |
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[29198] | 253 | public static void lineVector (Feature feature, LineStyle style) {
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[29199] | 254 | if (feature.flag != Fflag.NODE) {
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[29200] | 255 | ArrayList<Long> ways = new ArrayList<Long>();
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[29202] | 256 | if (map.outers.containsKey(feature.refs)) {
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| 257 | ways.addAll(map.mpolys.get(map.outers.get(feature.refs)));
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[29200] | 258 | } else {
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[29202] | 259 | if (map.mpolys.containsKey(feature.refs)) {
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| 260 | ways.addAll(map.mpolys.get(feature.refs));
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| 261 | } else {
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| 262 | ways.add(feature.refs);
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| 263 | }
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[29200] | 264 | }
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[29199] | 265 | Path2D.Double p = new Path2D.Double();
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[29200] | 266 | p.setWindingRule(GeneralPath.WIND_EVEN_ODD);
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| 267 | for (long way : ways) {
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| 268 | boolean first = true;
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| 269 | for (long node : map.ways.get(way)) {
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| 270 | Point2D point = helper.getPoint(map.nodes.get(node));
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| 271 | if (first) {
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| 272 | p.moveTo(point.getX(), point.getY());
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| 273 | first = false;
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| 274 | } else {
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| 275 | p.lineTo(point.getX(), point.getY());
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| 276 | }
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[29199] | 277 | }
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| 278 | }
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| 279 | if (style.line != null) {
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| 280 | if (style.dash != null) {
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| 281 | float[] dash = new float[style.dash.length];
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| 282 | System.arraycopy(style.dash, 0, dash, 0, style.dash.length);
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| 283 | for (int i = 0; i < style.dash.length; i++) {
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[29202] | 284 | dash[i] *= (float) sScale;
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[29199] | 285 | }
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| 286 | g2.setStroke(new BasicStroke((float) (style.width * sScale), BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND, 1, dash, 0));
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| 287 | } else {
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| 288 | g2.setStroke(new BasicStroke((float) (style.width * sScale), BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND));
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| 289 | }
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| 290 | g2.setPaint(style.line);
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| 291 | g2.draw(p);
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| 292 | }
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| 293 | if (style.fill != null) {
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| 294 | g2.setPaint(style.fill);
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| 295 | g2.fill(p);
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| 296 | }
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| 297 | }
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[29198] | 298 | }
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| 299 |
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[29204] | 300 | public static void labelText (Feature feature, String str, Font font, Color colour, Delta delta) {
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[29202] | 301 | Symbol label = new Symbol();
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[29206] | 302 | label.add(new Instr(Prim.TEXT, new Caption(str, font, colour, (delta == null) ? new Delta(Handle.CC, null) : delta)));
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[29202] | 303 | Point2D point = helper.getPoint(findCentroid(feature));
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[29206] | 304 | Symbols.drawSymbol(g2, label, tScale, point.getX(), point.getY(), null, null);
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[29198] | 305 | }
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| 306 |
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[29202] | 307 | public static void lineText (Feature feature, String str, Font font, double offset, double dy) {
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[29198] | 308 |
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| 309 | }
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[29157] | 310 | }
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