package com.amap.mapapi.overlay;
import java.util.ArrayList;
import java.util.List;
import android.content.Context;
import android.graphics.Color;
import com.amap.api.maps.AMap;
import com.amap.api.maps.model.BitmapDescriptor;
import com.amap.api.maps.model.BitmapDescriptorFactory;
import com.amap.api.maps.model.LatLng;
import com.amap.api.maps.model.LatLngBounds;
import com.amap.api.maps.model.Marker;
import com.amap.api.maps.model.MarkerOptions;
import com.amap.api.maps.model.PolylineOptions;
import com.amap.api.services.core.LatLonPoint;
import com.amap.api.services.route.DrivePath;
import com.amap.api.services.route.DriveStep;
import com.amap.api.services.route.TMC;
import me.gfuil.bmap.lite.R;
/**
* 导航路线图层类。
*/
public class DrivingRouteOverlay extends RouteOverlay {
private DrivePath drivePath;
private List<LatLonPoint> throughPointList;
private List<Marker> throughPointMarkerList = new ArrayList<Marker>();
private boolean throughPointMarkerVisible = true;
private List<TMC> tmcs;
private PolylineOptions mPolylineOptions;
private PolylineOptions mPolylineOptionscolor;
private Context mContext;
private boolean isColorfulline = true;
private List<LatLng> mLatLngsOfPath;
public void setIsColorfulline(boolean iscolorfulline) {
this.isColorfulline = iscolorfulline;
}
/**
* 根据给定的参数，构造一个导航路线图层类对象。
*
* @param amap 地图对象。
* @param path 导航路线规划方案。
* @param context 当前的activity对象。
*/
public DrivingRouteOverlay(Context context, AMap amap, DrivePath path,
LatLonPoint start, LatLonPoint end, List<LatLonPoint> throughPointList) {
super(context);
mContext = context;
mAMap = amap;
this.drivePath = path;
startPoint = AMapUtil.convertToLatLng(start);
endPoint = AMapUtil.convertToLatLng(end);
this.throughPointList = throughPointList;
}
/**
* 添加驾车路线添加到地图上显示。
*/
public void addToMap() {
initPolylineOptions();
try {
if (mAMap == null) {
return;
}
if (getRouteWidth() == 0 || drivePath == null) {
return;
}
mLatLngsOfPath = new ArrayList<LatLng>();
tmcs = new ArrayList<TMC>();
List<DriveStep> drivePaths = drivePath.getSteps();
mPolylineOptions.add(startPoint);
for (DriveStep step : drivePaths) {
List<LatLonPoint> latlonPoints = step.getPolyline();
List<TMC> tmclist = step.getTMCs();
tmcs.addAll(tmclist);
addDrivingStationMarkers(step, convertToLatLng(latlonPoints.get(0)));
for (LatLonPoint latlonpoint : latlonPoints) {
mPolylineOptions.add(convertToLatLng(latlonpoint));
mLatLngsOfPath.add(convertToLatLng(latlonpoint));
}
}
mPolylineOptions.add(endPoint);
if (startMarker != null) {
startMarker.remove();
startMarker = null;
}
if (endMarker != null) {
endMarker.remove();
endMarker = null;
}
addStartAndEndMarker();
addThroughPointMarker();
if (isColorfulline && tmcs.size() > 0) {
colorWayUpdate(tmcs);
showcolorPolyline();
} else {
showPolyline();
}
} catch (Throwable e) {
e.printStackTrace();
}
}
/**
* 初始化线段属性
*/
private void initPolylineOptions() {
mPolylineOptions = null;
mPolylineOptions = new PolylineOptions();
mPolylineOptions.color(getDriveColor()).width(getRouteWidth());
}
private void showPolyline() {
addPolyLine(mPolylineOptions);
}
private void showcolorPolyline() {
addPolyLine(mPolylineOptionscolor);
}
/**
* 根据不同的路段拥堵情况展示不同的颜色
*
* @param tmcSection
*/
private void colorWayUpdate(List<TMC> tmcSection) {
if (mAMap == null) {
return;
}
if (tmcSection == null || tmcSection.size() <= 0) {
return;
}
TMC segmentTrafficStatus;
mPolylineOptionscolor = null;
mPolylineOptionscolor = new PolylineOptions();
mPolylineOptionscolor.width(getRouteWidth());
List<Integer> colorList = new ArrayList<Integer>();
mPolylineOptionscolor.add(startPoint);
mPolylineOptionscolor.add(AMapUtil.convertToLatLng(tmcSection.get(0).getPolyline().get(0)));
colorList.add(getDriveColor());
for (int i = 0; i < tmcSection.size(); i++) {
segmentTrafficStatus = tmcSection.get(i);
int color = getcolor(segmentTrafficStatus.getStatus());
List<LatLonPoint> mployline = segmentTrafficStatus.getPolyline();
for (int j = 1; j < mployline.size(); j++) {
mPolylineOptionscolor.add(AMapUtil.convertToLatLng(mployline.get(j)));
colorList.add(color);
}
}
mPolylineOptionscolor.add(endPoint);
colorList.add(getDriveColor());
mPolylineOptionscolor.colorValues(colorList);
}
private int getcolor(String status) {
if (status.equals("畅通")) {
return Color.parseColor("#4CAF50");
} else if (status.equals("缓行")) {
return Color.YELLOW;
} else if (status.equals("拥堵")) {
return Color.RED;
} else if (status.equals("严重拥堵")) {
return Color.parseColor("#990033");
} else {
return Color.parseColor("#537edc");
}
}
public LatLng convertToLatLng(LatLonPoint point) {
return new LatLng(point.getLatitude(), point.getLongitude());
}
/**
* @param driveStep
* @param latLng
*/
private void addDrivingStationMarkers(DriveStep driveStep, LatLng latLng) {
addStationMarker(new MarkerOptions()
.position(latLng)
.title("\u65B9\u5411:" + driveStep.getAction()
+ "\n\u9053\u8DEF:" + driveStep.getRoad())
.snippet(driveStep.getInstruction()).visible(nodeIconVisible)
.anchor(0.5f, 0.5f).icon(getDriveBitmapDescriptor()));
}
@Override
protected LatLngBounds getLatLngBounds() {
LatLngBounds.Builder b = LatLngBounds.builder();
b.include(new LatLng(startPoint.latitude, startPoint.longitude));
b.include(new LatLng(endPoint.latitude, endPoint.longitude));
if (this.throughPointList != null && this.throughPointList.size() > 0) {
for (int i = 0; i < this.throughPointList.size(); i++) {
b.include(new LatLng(
this.throughPointList.get(i).getLatitude(),
this.throughPointList.get(i).getLongitude()));
}
}
return b.build();
}
public void setThroughPointIconVisibility(boolean visible) {
try {
throughPointMarkerVisible = visible;
if (this.throughPointMarkerList != null
&& this.throughPointMarkerList.size() > 0) {
for (int i = 0; i < this.throughPointMarkerList.size(); i++) {
this.throughPointMarkerList.get(i).setVisible(visible);
}
}
} catch (Throwable e) {
e.printStackTrace();
}
}
private void addThroughPointMarker() {
if (this.throughPointList != null && this.throughPointList.size() > 0) {
LatLonPoint latLonPoint = null;
for (int i = 0; i < this.throughPointList.size(); i++) {
latLonPoint = this.throughPointList.get(i);
if (latLonPoint != null) {
throughPointMarkerList.add(mAMap
.addMarker((new MarkerOptions())
.position(
new LatLng(latLonPoint
.getLatitude(), latLonPoint
.getLongitude()))
.visible(throughPointMarkerVisible)
.icon(getThroughPointBitDes())
.title("\u9014\u7ECF\u70B9")));
}
}
}
}
private BitmapDescriptor getThroughPointBitDes() {
return BitmapDescriptorFactory.fromResource(R.drawable.amap_through);
}
/**
* 获取两点间距离
*
* @param start
* @param end
* @return
*/
public static int calculateDistance(LatLng start, LatLng end) {
double x1 = start.longitude;
double y1 = start.latitude;
double x2 = end.longitude;
double y2 = end.latitude;
return calculateDistance(x1, y1, x2, y2);
}
public static int calculateDistance(double x1, double y1, double x2, double y2) {
final double NF_pi = 0.01745329251994329; // 弧度 PI/180
x1 *= NF_pi;
y1 *= NF_pi;
x2 *= NF_pi;
y2 *= NF_pi;
double sinx1 = Math.sin(x1);
double siny1 = Math.sin(y1);
double cosx1 = Math.cos(x1);
double cosy1 = Math.cos(y1);
double sinx2 = Math.sin(x2);
double siny2 = Math.sin(y2);
double cosx2 = Math.cos(x2);
double cosy2 = Math.cos(y2);
double[] v1 = new double[3];
v1[0] = cosy1 * cosx1 - cosy2 * cosx2;
v1[1] = cosy1 * sinx1 - cosy2 * sinx2;
v1[2] = siny1 - siny2;
double dist = Math.sqrt(v1[0] * v1[0] + v1[1] * v1[1] + v1[2] * v1[2]);
return (int) (Math.asin(dist / 2) * 12742001.5798544);
}
//获取指定两点之间固定距离点
public static LatLng getPointForDis(LatLng sPt, LatLng ePt, double dis) {
double lSegLength = calculateDistance(sPt, ePt);
double preResult = dis / lSegLength;
return new LatLng((ePt.latitude - sPt.latitude) * preResult + sPt.latitude, (ePt.longitude - sPt.longitude) * preResult + sPt.longitude);
}
/**
* 去掉DriveLineOverlay上的线段和标记。
*/
@Override
public void removeFromMap() {
try {
super.removeFromMap();
if (this.throughPointMarkerList != null
&& this.throughPointMarkerList.size() > 0) {
for (int i = 0; i < this.throughPointMarkerList.size(); i++) {
this.throughPointMarkerList.get(i).remove();
}
this.throughPointMarkerList.clear();
}
} catch (Throwable e) {
e.printStackTrace();
}
}
}
