/*
* Copyright (C) 2007 - 2012.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 or
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
package uk.me.parabola.mkgmap.build;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Set;
import uk.me.parabola.imgfmt.ExitException;
import uk.me.parabola.imgfmt.app.Coord;
import uk.me.parabola.imgfmt.app.Exit;
import uk.me.parabola.imgfmt.app.Label;
import uk.me.parabola.imgfmt.app.lbl.City;
import uk.me.parabola.imgfmt.app.lbl.Country;
import uk.me.parabola.imgfmt.app.lbl.ExitFacility;
import uk.me.parabola.imgfmt.app.lbl.Highway;
import uk.me.parabola.imgfmt.app.lbl.LBLFile;
import uk.me.parabola.imgfmt.app.lbl.POIRecord;
import uk.me.parabola.imgfmt.app.lbl.Region;
import uk.me.parabola.imgfmt.app.lbl.Zip;
import uk.me.parabola.imgfmt.app.map.Map;
import uk.me.parabola.imgfmt.app.net.NETFile;
import uk.me.parabola.imgfmt.app.net.NODFile;
import uk.me.parabola.imgfmt.app.net.RoadDef;
import uk.me.parabola.imgfmt.app.net.RouteCenter;
import uk.me.parabola.imgfmt.app.trergn.ExtTypeAttributes;
import uk.me.parabola.imgfmt.app.trergn.Overview;
import uk.me.parabola.imgfmt.app.trergn.Point;
import uk.me.parabola.imgfmt.app.trergn.PointOverview;
import uk.me.parabola.imgfmt.app.trergn.Polygon;
import uk.me.parabola.imgfmt.app.trergn.PolygonOverview;
import uk.me.parabola.imgfmt.app.trergn.Polyline;
import uk.me.parabola.imgfmt.app.trergn.PolylineOverview;
import uk.me.parabola.imgfmt.app.trergn.RGNFile;
import uk.me.parabola.imgfmt.app.trergn.RGNHeader;
import uk.me.parabola.imgfmt.app.trergn.Subdivision;
import uk.me.parabola.imgfmt.app.trergn.TREFile;
import uk.me.parabola.imgfmt.app.trergn.Zoom;
import uk.me.parabola.log.Logger;
import uk.me.parabola.mkgmap.Version;
import uk.me.parabola.mkgmap.combiners.OverviewBuilder;
import uk.me.parabola.mkgmap.filters.BaseFilter;
import uk.me.parabola.mkgmap.filters.DouglasPeuckerFilter;
import uk.me.parabola.mkgmap.filters.FilterConfig;
import uk.me.parabola.mkgmap.filters.LineMergeFilter;
import uk.me.parabola.mkgmap.filters.LinePreparerFilter;
import uk.me.parabola.mkgmap.filters.LineSplitterFilter;
import uk.me.parabola.mkgmap.filters.MapFilter;
import uk.me.parabola.mkgmap.filters.MapFilterChain;
import uk.me.parabola.mkgmap.filters.PolygonSplitterFilter;
import uk.me.parabola.mkgmap.filters.PreserveHorizontalAndVerticalLinesFilter;
import uk.me.parabola.mkgmap.filters.RemoveEmpty;
import uk.me.parabola.mkgmap.filters.RemoveObsoletePointsFilter;
import uk.me.parabola.mkgmap.filters.RoundCoordsFilter;
import uk.me.parabola.mkgmap.filters.ShapeMergeFilter;
import uk.me.parabola.mkgmap.filters.SizeFilter;
import uk.me.parabola.mkgmap.general.LevelInfo;
import uk.me.parabola.mkgmap.general.LoadableMapDataSource;
import uk.me.parabola.mkgmap.general.MapDataSource;
import uk.me.parabola.mkgmap.general.MapElement;
import uk.me.parabola.mkgmap.general.MapExitPoint;
import uk.me.parabola.mkgmap.general.MapLine;
import uk.me.parabola.mkgmap.general.MapPoint;
import uk.me.parabola.mkgmap.general.MapRoad;
import uk.me.parabola.mkgmap.general.MapShape;
import uk.me.parabola.imgfmt.app.net.RoadNetwork;
import uk.me.parabola.mkgmap.reader.MapperBasedMapDataSource;
import uk.me.parabola.mkgmap.reader.overview.OverviewMapDataSource;
import uk.me.parabola.util.Configurable;
import uk.me.parabola.util.EnhancedProperties;
/**
* This is the core of the code to translate from the general representation
* into the garmin representation.
*
* We need to go through the data several times, once for each level, filter
* out features that are not required at the level and simplify paths for
* lower resolutions if required.
*
* @author Steve Ratcliffe
*/
public class MapBuilder
implements Configurable
{
private static final Logger log =
Logger.
getLogger(MapBuilder.
class);
private static final int CLEAR_TOP_BITS =
(32 -
15);
private static final int MIN_SIZE_LINE =
1;
private final java.
util.
Map<MapPoint,POIRecord
> poimap =
new HashMap<MapPoint,POIRecord
>();
private final java.
util.
Map<MapPoint,City
> cityMap =
new HashMap<MapPoint,City
>();
private List<String> mapInfo =
new ArrayList<String>();
private List<String> copyrights =
new ArrayList<String>();
private boolean doRoads
;
private Boolean driveOnLeft
;
private Locator locator
;
private final java.
util.
Map<String, Highway
> highways =
new HashMap<String, Highway
>();
/** name that is used for cities which name are unknown */
private final static String UNKNOWN_CITY_NAME =
"";
private Country defaultCountry
;
private String countryName =
"COUNTRY";
private String countryAbbr =
"ABC";
private String regionName
;
private String regionAbbr
;
private Set<String> locationAutofill
;
private int minSizePolygon
;
private String polygonSizeLimitsOpt
;
private HashMap<Integer,
Integer> polygonSizeLimits =
null;
private double reducePointError
;
private double reducePointErrorPolygon
;
private boolean mergeLines
;
private boolean mergeShapes
;
private boolean poiAddresses
;
private int poiDisplayFlags
;
private boolean enableLineCleanFilters =
true;
private boolean makePOIIndex
;
private int routeCenterBoundaryType
;
private LBLFile lblFile
;
private String licenseFileName
;
public MapBuilder
() {
regionName =
null;
locationAutofill =
Collections.
emptySet();
locator =
new Locator();
}
public void config
(EnhancedProperties props
) {
countryName = props.
getProperty("country-name", countryName
);
countryAbbr = props.
getProperty("country-abbr", countryAbbr
);
regionName = props.
getProperty("region-name",
null);
regionAbbr = props.
getProperty("region-abbr",
null);
minSizePolygon = props.
getProperty("min-size-polygon",
8);
polygonSizeLimitsOpt = props.
getProperty("polygon-size-limits",
null);
reducePointError = props.
getProperty("reduce-point-density",
2.6);
reducePointErrorPolygon = props.
getProperty("reduce-point-density-polygon", -
1);
if (reducePointErrorPolygon == -
1)
reducePointErrorPolygon = reducePointError
;
mergeLines = props.
containsKey("merge-lines");
// undocumented option - usually used for debugging only
mergeShapes = props.
getProperty("no-mergeshapes",
false) ==
false;
makePOIIndex = props.
getProperty("make-poi-index",
false);
if(props.
getProperty("poi-address") !=
null)
poiAddresses =
true;
routeCenterBoundaryType = props.
getProperty("route-center-boundary",
0);
licenseFileName = props.
getProperty("license-file",
null);
locationAutofill = LocatorUtil.
parseAutofillOption(props
);
locator =
new Locator(props
);
locator.
setDefaultCountry(countryName, countryAbbr
);
String driveOn = props.
getProperty("drive-on",
null);
if ("left".
equals(driveOn
))
driveOnLeft =
true;
if ("right".
equals(driveOn
))
driveOnLeft =
false;
}
/**
* Main method to create the map, just calls out to several routines
* that do the work.
*
* @param map The map.
* @param src The map data.
*/
public void makeMap
(Map map, LoadableMapDataSource src
) {
RGNFile rgnFile = map.
getRgnFile();
TREFile treFile = map.
getTreFile();
lblFile = map.
getLblFile();
NETFile netFile = map.
getNetFile();
if(routeCenterBoundaryType
!=
0 &&
netFile
!=
null &&
src
instanceof MapperBasedMapDataSource
) {
for(RouteCenter rc : src.
getRoadNetwork().
getCenters()) {
((MapperBasedMapDataSource
)src
).
addBoundaryLine(rc.
getArea(), routeCenterBoundaryType, rc.
reportSizes());
}
}
if (mapInfo.
isEmpty())
getMapInfo
();
normalizeCountries
(src
);
processCities
(map, src
);
processRoads
(map,src
);
processPOIs
(map, src
);
processOverviews
(map, src
);
processInfo
(map, src
);
makeMapAreas
(map, src
);
if (driveOnLeft ==
null){
// check if source gives info about driving side
if (src
instanceof MapperBasedMapDataSource
){
driveOnLeft =
((MapperBasedMapDataSource
) src
).
getDriveOnLeft();
}
}
if (driveOnLeft ==
null)
driveOnLeft =
false;
treFile.
setDriveOnLeft(driveOnLeft
);
treFile.
setLastRgnPos(rgnFile.
position() - RGNHeader.
HEADER_LEN);
rgnFile.
write();
treFile.
write(rgnFile.
haveExtendedTypes());
treFile.
writePost();
lblFile.
write();
lblFile.
writePost();
if (netFile
!=
null) {
RoadNetwork network = src.
getRoadNetwork();
netFile.
setNetwork(network.
getRoadDefs());
NODFile nodFile = map.
getNodFile();
if (nodFile
!=
null) {
nodFile.
setNetwork(network.
getCenters(), network.
getRoadDefs(), network.
getBoundary());
nodFile.
setDriveOnLeft(driveOnLeft
);
nodFile.
write();
}
netFile.
write(lblFile.
numCities(), lblFile.
numZips());
if (nodFile
!=
null) {
nodFile.
writePost();
}
netFile.
writePost(rgnFile.
getWriter());
}
}
private Country getDefaultCountry
() {
if (defaultCountry ==
null && lblFile
!=
null) {
defaultCountry = lblFile.
createCountry(countryName, countryAbbr
);
}
return defaultCountry
;
}
/**
* Retrieves the region with the default name in the given country.
* @param country the country ({@code null} = use default country)
* @return the default region in the given country ({@code null} if not available)
*/
private Region getDefaultRegion
(Country country
) {
if (lblFile==
null || regionName ==
null) {
return null;
}
if (country ==
null) {
if (getDefaultCountry
() ==
null) {
return null;
} else {
return lblFile.
createRegion(getDefaultCountry
(), regionName, regionAbbr
);
}
} else {
return lblFile.
createRegion(country, regionName, regionAbbr
);
}
}
/**
* Process the country names of all elements and normalize them
* so that one consistent country name is used for the same country
* instead of different spellings.
* @param src the source of elements
*/
private void normalizeCountries
(MapDataSource src
) {
for (MapPoint p : src.
getPoints()) {
String countryStr = p.
getCountry();
if (countryStr
!=
null) {
countryStr = locator.
normalizeCountry(countryStr
);
p.
setCountry(countryStr
);
}
}
for (MapLine l : src.
getLines()) {
String countryStr = l.
getCountry();
if (countryStr
!=
null) {
countryStr = locator.
normalizeCountry(countryStr
);
l.
setCountry(countryStr
);
}
}
// shapes do not have address information
// untag the following lines if this is wrong
// for (MapShape s : src.getShapes()) {
// String countryStr = s.getCountry();
// if (countryStr != null) {
// countryStr = locator.normalizeCountry(countryStr);
// s.setCountry(countryStr);
// }
// }
}
/**
* Processing of Cities
*
* Fills the city list in lbl block that is required for find by name
* It also builds up information that is required to get address info
* for the POIs
*
* @param map The map.
* @param src The map data.
*/
private void processCities
(Map map, MapDataSource src
) {
LBLFile lbl = map.
getLblFile();
if (locationAutofill.
isEmpty() ==
false) {
// collect the names of the cities
for (MapPoint p : src.
getPoints()) {
if(p.
isCity() && p.
getName() !=
null)
locator.
addCityOrPlace(p
); // Put the city info the map for missing info
}
locator.
autofillCities(); // Try to fill missing information that include search of next city
}
for (MapPoint p : src.
getPoints())
{
if(p.
isCity() && p.
getName() !=
null)
{
String countryStr = p.
getCountry();
Country thisCountry
;
if(countryStr
!=
null) {
thisCountry = lbl.
createCountry(countryStr, locator.
getCountryISOCode(countryStr
));
} else
thisCountry = getDefaultCountry
();
String regionStr = p.
getRegion();
Region thisRegion
;
if(regionStr
!=
null)
{
thisRegion = lbl.
createRegion(thisCountry,regionStr,
null);
}
else
thisRegion = getDefaultRegion
(thisCountry
);
City thisCity
;
if(thisRegion
!=
null)
thisCity = lbl.
createCity(thisRegion, p.
getName(),
true);
else
thisCity = lbl.
createCity(thisCountry, p.
getName(),
true);
cityMap.
put(p, thisCity
);
}
}
}
private void processRoads
(Map map, MapDataSource src
) {
LBLFile lbl = map.
getLblFile();
MapPoint searchPoint =
new MapPoint
();
for (MapLine line : src.
getLines()) {
if(line.
isRoad()) {
String cityName = line.
getCity();
String cityCountryName = line.
getCountry();
String cityRegionName = line.
getRegion();
String zipStr = line.
getZip();
if(cityName ==
null && locationAutofill.
contains("nearest")) {
// Get name of next city if untagged
searchPoint.
setLocation(line.
getLocation());
MapPoint nextCity = locator.
findNextPoint(searchPoint
);
if(nextCity
!=
null) {
cityName = nextCity.
getCity();
// city/region/country fields should match to the found city
cityCountryName = nextCity.
getCountry();
cityRegionName = nextCity.
getRegion();
// use the zip code only if no zip code is known
if(zipStr ==
null)
zipStr = nextCity.
getZip();
}
}
if (cityName ==
null && (cityCountryName
!=
null || cityRegionName
!=
null)) {
// if city name is unknown and region and/or country is known
// use empty name for the city
cityName = UNKNOWN_CITY_NAME
;
}
if(cityName
!=
null) {
Country cc =
(cityCountryName ==
null)? getDefaultCountry
() : lbl.
createCountry(cityCountryName, locator.
getCountryISOCode(cityCountryName
));
Region cr =
(cityRegionName ==
null)? getDefaultRegion
(cc
) : lbl.
createRegion(cc, cityRegionName,
null);
if(cr
!=
null) {
((MapRoad
)line
).
setRoadCity(lbl.
createCity(cr, cityName,
false));
}
else {
((MapRoad
)line
).
setRoadCity(lbl.
createCity(cc, cityName,
false));
}
}
if(zipStr
!=
null) {
((MapRoad
)line
).
setRoadZip(lbl.
createZip(zipStr
));
}
}
}
}
private void processPOIs
(Map map, MapDataSource src
) {
LBLFile lbl = map.
getLblFile();
boolean checkedForPoiDispFlag =
false;
for (MapPoint p : src.
getPoints()) {
// special handling for highway exits
if(p.
isExit()) {
processExit
(map,
(MapExitPoint
)p
);
}
// do not process:
// * cities (already processed)
// * extended types (address information not shown in MapSource and on GPS)
// * all POIs except roads in case the no-poi-address option is set
else if (!p.
isCity() && !p.
hasExtendedType() && (p.
isRoadNamePOI() || poiAddresses
))
{
String countryStr = p.
getCountry();
String regionStr = p.
getRegion();
String zipStr = p.
getZip();
String cityStr = p.
getCity();
if(locationAutofill.
contains("nearest") && (countryStr ==
null || regionStr ==
null ||
(zipStr ==
null && cityStr ==
null)))
{
MapPoint nextCity = locator.
findNearbyCityByName(p
);
if(nextCity ==
null)
nextCity = locator.
findNextPoint(p
);
if(nextCity
!=
null)
{
if (countryStr ==
null) countryStr = nextCity.
getCountry();
if (regionStr ==
null) regionStr = nextCity.
getRegion();
if(zipStr ==
null)
{
String cityZipStr = nextCity.
getZip();
// Ignore list of Zips separated by ;
if(cityZipStr
!=
null && cityZipStr.
indexOf(',') < 0)
zipStr = cityZipStr
;
}
if(cityStr ==
null) cityStr = nextCity.
getCity();
}
}
if(countryStr
!=
null && !checkedForPoiDispFlag
)
{
// Different countries require different address notation
poiDisplayFlags = locator.
getPOIDispFlag(countryStr
);
checkedForPoiDispFlag =
true;
}
if(p.
isRoadNamePOI() && cityStr
!=
null)
{
// If it is road POI add city name and street name into address info
p.
setStreet(p.
getName());
p.
setName(p.
getName() +
"/" + cityStr
);
}
POIRecord r = lbl.
createPOI(p.
getName());
if (cityStr ==
null && (countryStr
!=
null || regionStr
!=
null)) {
// if city name is unknown and region and/or country is known
// use empty name for the city
cityStr = UNKNOWN_CITY_NAME
;
}
if(cityStr
!=
null)
{
Country thisCountry
;
if(countryStr
!=
null)
thisCountry = lbl.
createCountry(countryStr, locator.
getCountryISOCode(countryStr
));
else
thisCountry = getDefaultCountry
();
Region thisRegion
;
if(regionStr
!=
null)
thisRegion = lbl.
createRegion(thisCountry,regionStr,
null);
else
thisRegion = getDefaultRegion
(thisCountry
);
City city
;
if(thisRegion
!=
null)
city = lbl.
createCity(thisRegion, cityStr,
false);
else
city = lbl.
createCity(thisCountry, cityStr,
false);
r.
setCity(city
);
}
if (zipStr
!=
null)
{
Zip zip = lbl.
createZip(zipStr
);
r.
setZip(zip
);
}
if(p.
getStreet() !=
null)
{
Label streetName = lbl.
newLabel(p.
getStreet());
r.
setStreetName(streetName
);
}
String houseNumber = p.
getHouseNumber();
if (houseNumber
!=
null && !houseNumber.
isEmpty()) {
if(!r.
setSimpleStreetNumber(houseNumber
))
r.
setComplexStreetNumber(lbl.
newLabel(houseNumber
));
}
String phone = p.
getPhone();
if (phone
!=
null && !phone.
isEmpty()) {
if(!r.
setSimplePhoneNumber(phone
))
r.
setComplexPhoneNumber(lbl.
newLabel(phone
));
}
poimap.
put(p, r
);
}
}
lbl.
allPOIsDone();
}
private void processExit
(Map map, MapExitPoint mep
) {
LBLFile lbl = map.
getLblFile();
String ref = mep.
getMotorwayRef();
String OSMId = mep.
getOSMId();
if(ref
!=
null) {
Highway hw = highways.
get(ref
);
if(hw ==
null)
hw = makeHighway
(map, ref
);
if(hw ==
null) {
log.
warn("Can't create exit", mep.
getName(),
"(OSM id", OSMId,
") on unknown highway", ref
);
return;
}
String exitName = mep.
getName();
String exitTo = mep.
getTo();
Exit exit =
new Exit
(hw
);
String facilityDescription = mep.
getFacilityDescription();
log.
info("Creating", ref,
"exit", exitName,
"(OSM id", OSMId +
") to", exitTo,
"with facility",
((facilityDescription ==
null)? "(none)" : facilityDescription
));
if(facilityDescription
!=
null) {
// description is TYPE,DIR,FACILITIES,LABEL
// (same as Polish Format)
String[] atts = facilityDescription.
split(",");
int type =
0;
if(atts.
length > 0)
type =
Integer.
decode(atts
[0]);
char direction =
' ';
if(atts.
length > 1) {
direction = atts
[1].
charAt(0);
if(direction ==
'\'' && atts
[1].
length() > 1)
direction = atts
[1].
charAt(1);
}
int facilities = 0x0
;
if(atts.
length > 2)
facilities =
Integer.
decode(atts
[2]);
String description =
"";
if(atts.
length > 3)
description = atts
[3];
boolean last =
true; // FIXME - handle multiple facilities?
ExitFacility ef = lbl.
createExitFacility(type, direction, facilities, description, last
);
exit.
addFacility(ef
);
}
mep.
setExit(exit
);
POIRecord r = lbl.
createExitPOI(exitName, exit
);
if(exitTo
!=
null) {
Label ed = lbl.
newLabel(exitTo
);
exit.
setDescription(ed
);
}
poimap.
put(mep, r
);
// FIXME - set bottom bits of
// type to reflect facilities available?
}
}
/**
* Drive the map generation by stepping through the levels, generating the
* subdivisions for the level and filling in the map elements that should
* go into the area.
*
* This is fairly complex: you need to divide into subdivisions depending on
* their size and the number of elements that will be contained.
*
* @param map The map.
* @param src The data for the map.
*/
private void makeMapAreas
(Map map, LoadableMapDataSource src
) {
// The top level has to cover the whole map without subdividing, so
// do a special check to make sure.
LevelInfo
[] levels =
null;
if (src
instanceof OverviewMapDataSource
)
levels = src.
mapLevels();
else {
if (OverviewBuilder.
isOverviewImg(map.
getFilename())) {
levels = src.
overviewMapLevels();
} else {
levels = src.
mapLevels();
}
}
if (levels ==
null){
throw new ExitException
("no info about levels available.");
}
LevelInfo levelInfo = levels
[0];
// If there is already a top level zoom, then we shouldn't add our own
Subdivision topdiv
;
if (levelInfo.
isTop()) {
// There is already a top level definition. So use the values from it and
// then remove it from the levels definition.
levels =
Arrays.
copyOfRange(levels,
1, levels.
length);
Zoom zoom = map.
createZoom(levelInfo.
getLevel(), levelInfo.
getBits());
topdiv = makeTopArea
(src, map, zoom
);
} else {
// We have to automatically create the definition for the top zoom level.
int maxBits = getMaxBits
(src
);
// If the max is larger than the top-most data level then we
// decrease it so that it is less.
if (levelInfo.
getBits() <= maxBits
)
maxBits = levelInfo.
getBits() -
1;
// Create the empty top level
Zoom zoom = map.
createZoom(levelInfo.
getLevel() +
1, maxBits
);
topdiv = makeTopArea
(src, map, zoom
);
}
// We start with one map data source.
List<SourceSubdiv
> srcList =
Collections.
singletonList(new SourceSubdiv
(src, topdiv
));
// Now the levels filled with features.
for (LevelInfo linfo : levels
) {
List<SourceSubdiv
> nextList =
new ArrayList<SourceSubdiv
>();
Zoom zoom = map.
createZoom(linfo.
getLevel(), linfo.
getBits());
for (SourceSubdiv srcDivPair : srcList
) {
MapSplitter splitter =
new MapSplitter
(srcDivPair.
getSource(), zoom
);
MapArea
[] areas = splitter.
split();
log.
info("Map region", srcDivPair.
getSource().
getBounds(),
"split into", areas.
length,
"areas at resolution", zoom.
getResolution());
for (MapArea area : areas
) {
Subdivision parent = srcDivPair.
getSubdiv();
Subdivision div = makeSubdivision
(map, parent, area, zoom
);
if (log.
isDebugEnabled())
log.
debug("ADD parent-subdiv", parent, srcDivPair.
getSource(),
", z=", zoom,
" new=", div
);
nextList.
add(new SourceSubdiv
(area, div
));
}
if (nextList.
size() > 0){
Subdivision lastdiv = nextList.
get(nextList.
size() -
1).
getSubdiv();
lastdiv.
setLast(true);
}
}
srcList = nextList
;
}
}
/**
* Create the top level subdivision.
*
* There must be an empty zoom level at the least detailed level. As it
* covers the whole area in one it must be zoomed out enough so that
* this can be done.
*
* Note that the width is a 16 bit quantity, but the top bit is a
* flag and so that leaves only 15 bits into which the actual width
* can fit.
*
* @param src The source of map data.
* @param map The map being created.
* @param zoom The zoom level.
* @return The new top level subdivision.
*/
private static Subdivision makeTopArea
(MapDataSource src,
Map map, Zoom zoom
) {
Subdivision topdiv = map.
topLevelSubdivision(src.
getBounds(), zoom
);
topdiv.
setLast(true);
return topdiv
;
}
/**
* Make an individual subdivision for the map. To do this we need a link
* to its parent and the zoom level that we are working at.
*
* @param map The map to add this subdivision into.
* @param parent The parent division.
* @param ma The area of the map that we are fitting into this division.
* @param z The zoom level.
* @return The new subdivsion.
*/
private Subdivision makeSubdivision
(Map map, Subdivision parent, MapArea ma, Zoom z
) {
List<MapPoint
> points = ma.
getPoints();
List<MapLine
> lines = ma.
getLines();
List<MapShape
> shapes = ma.
getShapes();
Subdivision div = map.
createSubdivision(parent, ma.
getFullBounds(), z
);
if (ma.
hasPoints())
div.
setHasPoints(true);
if (ma.
hasIndPoints())
div.
setHasIndPoints(true);
if (ma.
hasLines())
div.
setHasPolylines(true);
if (ma.
hasShapes())
div.
setHasPolygons(true);
div.
startDivision();
processPoints
(map, div, points
);
processLines
(map, div, lines
);
processShapes
(map, div, shapes
);
div.
endDivision();
return div
;
}
/**
* Create the overview sections.
*
* @param map The map details.
* @param src The map data source.
*/
protected void processOverviews
(Map map, MapDataSource src
) {
List<Overview
> features = src.
getOverviews();
for (Overview ov : features
) {
switch (ov.
getKind()) {
case Overview.
POINT_KIND:
map.
addPointOverview((PointOverview
) ov
);
break;
case Overview.
LINE_KIND:
map.
addPolylineOverview((PolylineOverview
) ov
);
break;
case Overview.
SHAPE_KIND:
map.
addPolygonOverview((PolygonOverview
) ov
);
break;
default:
break;
}
}
}
/**
* Set all the information that appears in the header.
*
* @param map The map to write to.
* @param src The source of map information.
*/
protected void getMapInfo
() {
if (licenseFileName
!=
null) {
File file =
new File(licenseFileName
);
try {
BufferedReader reader =
new BufferedReader(new FileReader(file
));
String text
;
// repeat until all lines is read
while ((text = reader.
readLine()) !=
null) {
if (!text.
isEmpty()) {
mapInfo.
add(text
);
}
}
reader.
close();
} catch (FileNotFoundException e
) {
throw new ExitException
("Could not open license file " + licenseFileName
);
} catch (IOException e
) {
throw new ExitException
("Error reading license file " + licenseFileName
);
}
} else {
mapInfo.
add("Map data (c) OpenStreetMap and its contributors");
mapInfo.
add("http://www.openstreetmap.org/copyright");
mapInfo.
add("");
mapInfo.
add("This map data is made available under the Open Database License:");
mapInfo.
add("http://opendatacommons.org/licenses/odbl/1.0/");
mapInfo.
add("Any rights in individual contents of the database are licensed under the");
mapInfo.
add("Database Contents License: http://opendatacommons.org/licenses/dbcl/1.0/");
mapInfo.
add("");
// Pad the version number with spaces so that version
// strings that are different lengths do not change the size and
// offsets of the following sections.
mapInfo.
add("Map created with mkgmap-r"
+
String.
format("%-10s", Version.
VERSION));
mapInfo.
add("Program released under the GPL");
}
}
public void setMapInfo
(List<String> msgs
){
mapInfo = msgs
;
}
public void setCopyrights
(List<String> msgs
){
copyrights = msgs
;
}
/**
* Set all the information that appears in the header.
*
* @param map The map to write to.
* @param src The source of map information.
*/
protected void processInfo
(Map map, LoadableMapDataSource src
) {
// The bounds of the map.
map.
setBounds(src.
getBounds());
if(poiDisplayFlags
!=
0) // POI requested alternate address notation
map.
addPoiDisplayFlags(poiDisplayFlags
);
// You can add anything here.
// But there has to be something, otherwise the map does not show up.
//
// We use it to add copyright information that there is no room for
// elsewhere
String info =
"";
for (String s: mapInfo
){
info += s.
trim() +
"\n";
}
if (!info.
isEmpty())
map.
addInfo(info
);
if (copyrights.
isEmpty()){
// There has to be (at least) two copyright messages or else the map
// does not show up. The second one will be displayed at startup,
// although the conditions where that happens are not known.
map.
addCopyright("program licenced under GPL v2");
// This one gets shown when you switch on, so put the actual
// map copyright here.
for (String cm : src.
copyrightMessages())
map.
addCopyright(cm
);
} else {
for (String cm : copyrights
)
map.
addCopyright(cm
);
}
}
/**
* Step through the points, filter and create a map point which is then added
* to the map.
*
* Note that the location and resolution of map elements is relative to the
* subdivision that they occur in.
*
* @param map The map to add points to.
* @param div The subdivision that the points belong to.
* @param points The points to be added.
*/
private void processPoints
(Map map, Subdivision div,
List<MapPoint
> points
) {
LBLFile lbl = map.
getLblFile();
div.
startPoints();
int res = div.
getResolution();
boolean haveIndPoints =
false;
int pointIndex =
1;
// although the non-indexed points are output first,
// pointIndex must be initialized to the number of indexed
// points (not 1)
for (MapPoint point : points
) {
if (point.
isCity() &&
point.
getMinResolution() <= res
&&
point.
getMaxResolution() >= res
) {
++pointIndex
;
haveIndPoints =
true;
}
}
for (MapPoint point : points
) {
if (point.
isCity() ||
point.
getMinResolution() > res ||
point.
getMaxResolution() < res
)
continue;
String name = point.
getName();
Point p = div.
createPoint(name
);
p.
setType(point.
getType());
if(point.
hasExtendedType()) {
ExtTypeAttributes eta = point.
getExtTypeAttributes();
if(eta
!=
null) {
eta.
processLabels(lbl
);
p.
setExtTypeAttributes(eta
);
}
}
Coord coord = point.
getLocation();
try {
p.
setLatitude(coord.
getLatitude());
p.
setLongitude(coord.
getLongitude());
}
catch (AssertionError ae
) {
log.
error("Problem with point of type 0x" +
Integer.
toHexString(point.
getType()) +
" at " + coord.
toOSMURL());
log.
error(" Subdivision shift is " + div.
getShift() +
" and its centre is at " + div.
getCenter().
toOSMURL());
log.
error(" " + ae.
getMessage());
continue;
}
POIRecord r = poimap.
get(point
);
if (r
!=
null)
p.
setPOIRecord(r
);
map.
addMapObject(p
);
if(!point.
hasExtendedType()) {
if(name
!=
null && div.
getZoom().
getLevel() ==
0) {
if(pointIndex
> 255)
log.
error("Too many POIs at location " + div.
getCenter().
toOSMURL() +
" - " + name +
" will be ignored");
else if(point.
isExit()) {
Exit e =
((MapExitPoint
)point
).
getExit();
if(e
!=
null)
e.
getHighway().
addExitPoint(name, pointIndex, div
);
}
else if(makePOIIndex
)
lbl.
createPOIIndex(name, pointIndex, div, point.
getType());
}
++pointIndex
;
}
}
if (haveIndPoints
) {
div.
startIndPoints();
pointIndex =
1; // reset to 1
for (MapPoint point : points
) {
if (!point.
isCity() ||
point.
getMinResolution() > res ||
point.
getMaxResolution() < res
)
continue;
String name = point.
getName();
Point p = div.
createPoint(name
);
p.
setType(point.
getType());
Coord coord = point.
getLocation();
try {
p.
setLatitude(coord.
getLatitude());
p.
setLongitude(coord.
getLongitude());
}
catch (AssertionError ae
) {
log.
error("Problem with point of type 0x" +
Integer.
toHexString(point.
getType()) +
" at " + coord.
toOSMURL());
log.
error(" Subdivision shift is " + div.
getShift() +
" and its centre is at " + div.
getCenter().
toOSMURL());
log.
error(" " + ae.
getMessage());
continue;
}
map.
addMapObject(p
);
if(name
!=
null && div.
getZoom().
getLevel() ==
0) {
// retrieve the City created earlier for this
// point and store the point info in it
City c = cityMap.
get(point
);
if(pointIndex
> 255) {
System.
err.
println("Can't set city point index for " + name +
" (too many indexed points in division)\n");
} else {
c.
setPointIndex((byte)pointIndex
);
c.
setSubdivision(div
);
}
}
++pointIndex
;
}
}
}
/**
* Step through the lines, filter, simplify if necessary, and create a map
* line which is then added to the map.
*
* Note that the location and resolution of map elements is relative to the
* subdivision that they occur in.
*
* @param map The map to add points to.
* @param div The subdivision that the lines belong to.
* @param lines The lines to be added.
*/
private void processLines
(Map map, Subdivision div,
List<MapLine
> lines
)
{
div.
startLines(); // Signal that we are beginning to draw the lines.
int res = div.
getResolution();
FilterConfig config =
new FilterConfig
();
config.
setResolution(res
);
config.
setLevel(div.
getZoom().
getLevel());
config.
setRoutable(doRoads
);
//TODO: Maybe this is the wrong place to do merging.
// Maybe more efficient if merging before creating subdivisions.
if (mergeLines
) {
LineMergeFilter merger =
new LineMergeFilter
();
lines = merger.
merge(lines, res
);
}
LayerFilterChain filters =
new LayerFilterChain
(config
);
if (enableLineCleanFilters
&& (res
< 24)) {
filters.
addFilter(new RoundCoordsFilter
());
filters.
addFilter(new SizeFilter
(MIN_SIZE_LINE
));
if(reducePointError
> 0)
filters.
addFilter(new DouglasPeuckerFilter
(reducePointError
));
}
filters.
addFilter(new LineSplitterFilter
());
filters.
addFilter(new RemoveEmpty
());
filters.
addFilter(new RemoveObsoletePointsFilter
());
filters.
addFilter(new LinePreparerFilter
(div
));
filters.
addFilter(new LineAddFilter
(div, map, doRoads
));
for (MapLine line : lines
) {
if (line.
getMinResolution() > res || line.
getMaxResolution() < res
)
continue;
filters.
startFilter(line
);
}
}
/**
* Step through the polygons, filter, simplify if necessary, and create a map
* shape which is then added to the map.
*
* Note that the location and resolution of map elements is relative to the
* subdivision that they occur in.
*
* @param map The map to add polygons to.
* @param div The subdivision that the polygons belong to.
* @param shapes The polygons to be added.
*/
private void processShapes
(Map map, Subdivision div,
List<MapShape
> shapes
)
{
div.
startShapes(); // Signal that we are beginning to draw the shapes.
int res = div.
getResolution();
FilterConfig config =
new FilterConfig
();
config.
setResolution(res
);
config.
setLevel(div.
getZoom().
getLevel());
config.
setRoutable(doRoads
);
if (mergeShapes
){
ShapeMergeFilter shapeMergeFilter =
new ShapeMergeFilter
(res
);
List<MapShape
> mergedShapes = shapeMergeFilter.
merge(shapes
);
shapes = mergedShapes
;
}
LayerFilterChain filters =
new LayerFilterChain
(config
);
if (enableLineCleanFilters
&& (res
< 24)) {
filters.
addFilter(new PreserveHorizontalAndVerticalLinesFilter
());
filters.
addFilter(new RoundCoordsFilter
());
int sizefilterVal = getMinSizePolygonForResolution
(res
);
if (sizefilterVal
> 0)
filters.
addFilter(new SizeFilter
(sizefilterVal
));
//DouglasPeucker behaves at the moment not really optimal at low zooms, but acceptable.
//Is there an similar algorithm for polygons?
if(reducePointErrorPolygon
> 0)
filters.
addFilter(new DouglasPeuckerFilter
(reducePointErrorPolygon
));
}
filters.
addFilter(new PolygonSplitterFilter
());
filters.
addFilter(new RemoveEmpty
());
filters.
addFilter(new RemoveObsoletePointsFilter
());
filters.
addFilter(new LinePreparerFilter
(div
));
filters.
addFilter(new ShapeAddFilter
(div, map
));
for (MapShape shape : shapes
) {
if (shape.
getMinResolution() > res || shape.
getMaxResolution() < res
)
continue;
filters.
startFilter(shape
);
}
}
Highway makeHighway
(Map map,
String ref
) {
if(getDefaultRegion
(null) ==
null) {
log.
warn("Highway " + ref +
" has no region (define a default region to zap this warning)");
}
Highway hw = highways.
get(ref
);
if(hw ==
null) {
LBLFile lblFile = map.
getLblFile();
log.
info("creating highway " + ref
);
hw = lblFile.
createHighway(getDefaultRegion
(null), ref
);
highways.
put(ref, hw
);
}
return hw
;
}
/**
* It is not possible to represent large maps at the 24 bit resolution. This
* gets the largest resolution that can still cover the whole area of the
* map. It is used for the top most layer.
*
* @param src The map data.
* @return The largest number of bits where we can still represent the
* whole map.
*/
private static int getMaxBits
(MapDataSource src
) {
int topshift =
Integer.
numberOfLeadingZeros(src.
getBounds().
getMaxDimension());
int minShift =
Math.
max(CLEAR_TOP_BITS - topshift,
0);
return 24 - minShift
;
}
/**
* Enable/disable the creation of a routable map
* @param doRoads
*/
public void setDoRoads
(boolean doRoads
) {
this.
doRoads = doRoads
;
}
public void setEnableLineCleanFilters
(boolean enable
) {
this.
enableLineCleanFilters = enable
;
}
/**
* Determine the minimum size for a polygon for the given level.
* @param res the resolution
* @return the size filter value
*/
private int getMinSizePolygonForResolution
(int res
) {
if (polygonSizeLimitsOpt ==
null)
return minSizePolygon
;
if (polygonSizeLimits ==
null){
polygonSizeLimits =
new HashMap<Integer,
Integer>();
String[] desc = polygonSizeLimitsOpt.
split("[, \\t\\n]+");
int count =
0;
for (String s : desc
) {
String[] keyVal = s.
split("[=:]");
if (keyVal ==
null || keyVal.
length < 2) {
System.
err.
println("incorrect polygon-size-limits specification " + polygonSizeLimitsOpt
);
continue;
}
try {
int key =
Integer.
parseInt(keyVal
[0]);
int value =
Integer.
parseInt(keyVal
[1]);
Integer testDup = polygonSizeLimits.
put(key, value
);
if (testDup
!=
null){
System.
err.
println("duplicate resolution value in polygon-size-limits specification " + polygonSizeLimitsOpt
);
continue;
}
} catch (NumberFormatException e
) {
System.
err.
println("polygon-size-limits specification not all numbers " + keyVal
[count
]);
}
count++
;
}
}
if (polygonSizeLimits
!=
null){
// return the value for the desired resolution or the next higher one
for (int r = res
; r
<=
24; r++
){
Integer limit = polygonSizeLimits.
get(r
);
if (limit
!=
null){
if (r
!= res
)
polygonSizeLimits.
put(res, limit
);
return limit
;
}
}
return 0;
}
return minSizePolygon
;
}
private static class SourceSubdiv
{
private final MapDataSource source
;
private final Subdivision subdiv
;
SourceSubdiv
(MapDataSource ds, Subdivision subdiv
) {
this.
source = ds
;
this.
subdiv = subdiv
;
}
public MapDataSource getSource
() {
return source
;
}
public Subdivision getSubdiv
() {
return subdiv
;
}
}
private class LineAddFilter
extends BaseFilter
implements MapFilter
{
private final Subdivision div
;
private final Map map
;
private final boolean doRoads
;
LineAddFilter
(Subdivision div,
Map map,
boolean doRoads
) {
this.
div = div
;
this.
map = map
;
this.
doRoads = doRoads
;
}
public void doFilter
(MapElement element, MapFilterChain next
) {
MapLine line =
(MapLine
) element
;
assert line.
getPoints().
size() < 255 :
"too many points";
Polyline pl = div.
createLine(line.
getLabels());
if (element.
hasExtendedType()) {
ExtTypeAttributes eta = element.
getExtTypeAttributes();
if (eta
!=
null) {
eta.
processLabels(map.
getLblFile());
pl.
setExtTypeAttributes(eta
);
}
} else
div.
setPolylineNumber(pl
);
pl.
setDirection(line.
isDirection());
pl.
addCoords(line.
getPoints());
pl.
setType(line.
getType());
if (doRoads
){
if (line
instanceof MapRoad
) {
if (log.
isDebugEnabled())
log.
debug("adding road def: " + line.
getName());
MapRoad road =
(MapRoad
) line
;
RoadDef roaddef = road.
getRoadDef();
pl.
setRoadDef(roaddef
);
if (road.
hasSegmentsFollowing() )
pl.
setLastSegment(false);
roaddef.
addPolylineRef(pl
);
}
}
map.
addMapObject(pl
);
}
}
private static class ShapeAddFilter
extends BaseFilter
implements MapFilter
{
private final Subdivision div
;
private final Map map
;
ShapeAddFilter
(Subdivision div,
Map map
) {
this.
div = div
;
this.
map = map
;
}
public void doFilter
(MapElement element, MapFilterChain next
) {
MapShape shape =
(MapShape
) element
;
assert shape.
getPoints().
size() < 255 :
"too many points";
Polygon pg = div.
createPolygon(shape.
getName());
pg.
addCoords(shape.
getPoints());
pg.
setType(shape.
getType());
if(element.
hasExtendedType()) {
ExtTypeAttributes eta = element.
getExtTypeAttributes();
if(eta
!=
null) {
eta.
processLabels(map.
getLblFile());
pg.
setExtTypeAttributes(eta
);
}
}
map.
addMapObject(pg
);
}
}
}