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/*
* Copyright (C) 2014.
*
* 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.reader.osm;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicBoolean;
import uk.me.parabola.imgfmt.app.Area;
import uk.me.parabola.imgfmt.app.Coord;
import uk.me.parabola.log.Logger;
import uk.me.parabola.util.GpxCreator;
import uk.me.parabola.util.QuadTree;
/**
* A relation used by the sea generation code.
*
* @author WanMil
*/
public class SeaPolygonRelation
extends MultiPolygonRelation
{
private static final Logger log =
Logger
.
getLogger(SeaPolygonRelation.
class);
private final QuadTree landCoords
;
private final QuadTree seaCoords
;
private boolean floodBlocker =
true;
private int floodBlockerGap =
40;
private double floodBlockerRatio = 0.5d
;
private int floodBlockerThreshold =
20;
private boolean debug
;
private final DecimalFormat format =
new DecimalFormat("0.0000");
private Rule floodBlockerRules
;
private final String[] landTag =
{"natural",
"land"};
public SeaPolygonRelation
(Relation other,
Map<Long, Way
> wayMap,
Area bbox
) {
super(other, wayMap, bbox
);
this.
landCoords =
new QuadTree
(bbox
);
this.
seaCoords =
new QuadTree
(bbox
);
// set a special type because this is not the OSM common multipolygon
// relation
addTag
("type",
"mkgmap:seapolygon");
}
@
Override
protected boolean isAreaSizeCalculated
() {
return false;
}
protected void postProcessing
() {
if (isFloodBlocker
()) {
removeFloodedAreas
();
}
super.
postProcessing();
}
private void fillQuadTrees
() {
final AtomicBoolean isLand =
new AtomicBoolean(false);
final AtomicBoolean isSea =
new AtomicBoolean(false);
TypeResult fakedType =
new TypeResult
() {
@
Override
public void add
(Element el, GType type
) {
if (log.
isDebugEnabled())
log.
debug(el.
getId(),type
);
if (type.
getType() == 0x01
) {
isLand.
set(true);
} else if (type.
getType() == 0x02
) {
isSea.
set(true);
}
}
};
for (Way way : getTileWayMap
().
values()) {
if (log.
isDebugEnabled())
log.
debug("Check usage of way for floodblocker:", way.
getId(), way.
toTagString());
floodBlockerRules.
resolveType(way, fakedType
);
if (isLand.
get()) {
// save these coords to check if some sea polygons floods
// the land
log.
debug("Way", way.
getId(),
"identified as land");
landCoords.
addAll(way.
getPoints());
isLand.
set(false);
} else if (isSea.
get()) {
// save these coords to check if some sea polygons floods the
// land
log.
debug("Way", way.
getId(),
"identified as sea");
seaCoords.
addAll(way.
getPoints());
isSea.
set(false);
}
}
}
private void removeFloodedAreas
() {
fillQuadTrees
();
// create a copy of all resulting ways - the tile way map contains only
// polygons from
// the sea generation
ArrayList<Way
> polygons =
new ArrayList<Way
>(getMpPolygons
().
values());
log.
info("Starting flood blocker. Polygons to check:", getMpPolygons
()
.
size());
String baseName = GpxCreator.
getGpxBaseName();
if (debug
) {
GpxCreator.
createAreaGpx(baseName +
"bbox", getBbox
());
}
// go through all polygons and check if it contains too many coords of
// the other type
for (Way p : polygons
) {
boolean sea =
"sea".
equals(p.
getTag("natural"));
QuadTree goodCoords =
(sea
? seaCoords : landCoords
);
QuadTree badCoords =
(sea
? landCoords : seaCoords
);
String polyType =
(sea
? "sea" :
"land");
String otherType =
(sea
? "land" :
"sea");
List<Coord
> minusCoords = badCoords.
get(p.
getPoints(),
getFloodBlockerGap
());
List<Coord
> positiveCoords = goodCoords.
get(p.
getPoints());
log.
info(polyType,
"polygon", p.
getId(),
"contains",
minusCoords.
size(), otherType,
"coords and",
positiveCoords.
size(), polyType,
"coords.");
if (minusCoords.
size() > 0) {
double area = MultiPolygonRelation.
calcAreaSize(p.
getPoints());
double ratio =
((minusCoords.
size() - positiveCoords.
size()) * 100000.0d / area
);
String areaFMT = format.
format(area
);
String ratioFMT = format.
format(ratio
);
log.
info("Flood blocker for", polyType,
"polygon", p.
getId());
log.
info("area",areaFMT
);
log.
info(polyType, positiveCoords.
size());
log.
info(otherType, minusCoords.
size());
log.
info("ratio", ratioFMT
);
if (debug
) {
GpxCreator.
createGpx(
baseName + p.
getId() +
"_"+polyType+
"_"
+ minusCoords.
size() +
"_"
+ positiveCoords.
size() +
"_" + ratioFMT,
p.
getPoints());
GpxCreator.
createGpx(
baseName + p.
getId() +
"_con_"
+ minusCoords.
size() +
"_"
+ positiveCoords.
size() +
"_" + ratioFMT,
null, minusCoords
);
if (positiveCoords.
isEmpty() ==
false) {
GpxCreator.
createGpx(
baseName + p.
getId() +
"_pro_"
+ minusCoords.
size() +
"_"
+ positiveCoords.
size() +
"_"
+ ratioFMT,
null,
positiveCoords
);
}
}
if (minusCoords.
size() - positiveCoords.
size() >= getFloodBlockerThreshold
()
&& ratio
> getFloodBlockerRatio
()) {
log.
warn("Polygon", p.
getId(),
"type",polyType,
"seems to be wrong. Changing it to",otherType
);
if (sea
) {
p.
deleteTag("natural");
p.
addTag(landTag
[0], landTag
[1]);
} else {
p.
deleteTag(landTag
[0]);
p.
addTag("natural",
"sea");
}
// getMpPolygons().remove(p.getId());
} else {
log.
info("Polygon",p.
getId(),
"is not blocked");
}
}
}
log.
info("Flood blocker finished. Resulting polygons:", getMpPolygons
()
.
size());
landCoords.
clear();
seaCoords.
clear();
}
public boolean isFloodBlocker
() {
return floodBlocker
;
}
public void setFloodBlocker
(boolean floodBlocker
) {
this.
floodBlocker = floodBlocker
;
}
public int getFloodBlockerGap
() {
return floodBlockerGap
;
}
public void setFloodBlockerGap
(int floodBlockerGap
) {
this.
floodBlockerGap = floodBlockerGap
;
}
public double getFloodBlockerRatio
() {
return floodBlockerRatio
;
}
public void setFloodBlockerRatio
(double floodBlockerRatio
) {
this.
floodBlockerRatio = floodBlockerRatio
;
}
public int getFloodBlockerThreshold
() {
return floodBlockerThreshold
;
}
public void setFloodBlockerThreshold
(int floodBlockerThreshold
) {
this.
floodBlockerThreshold = floodBlockerThreshold
;
}
public boolean isDebug
() {
return debug
;
}
public void setDebug
(boolean debug
) {
this.
debug = debug
;
}
public Rule getFloodBlockerRules
() {
return floodBlockerRules
;
}
public void setFloodBlockerRules
(Rule floodBlockerRules
) {
this.
floodBlockerRules = floodBlockerRules
;
}
public void setLandTag
(String landTag,
String landValue
) {
this.
landTag[0] = landTag
;
this.
landTag[1] = landValue
;
}
}