需求： 业务当司机接到乘客后，有一个规划的路线，然后司机前往目的地，小车走过的路线置成灰色。
思路：
- 根据上下车点，进行驾车路线规划，并画线
2.实时获取经纬度点。(经纬度点要验证，筛选)
3.获取的点，进行纠偏处理。
4.纠偏后的点，是小车移动的重要组成部分，小车移动中画走过的线。
重要代码块1.
驾车路线规划成功后画线 （画蓝线）
- (void)showNaviRoutes:(AMapNaviDriveManager *)driveManager
{
if ([driveManager.naviRoutes count] <= 0) {
return;
}
[kMAPMANAGER.mapView removeOverlays:kMAPMANAGER.mapView.overlays];
AMapNaviRoute *aRoute = driveManager.naviRoute;
int count = (int)[[aRoute routeCoordinates] count];
//添加路径Polyline
CLLocationCoordinate2D *coords = (CLLocationCoordinate2D *)malloc(count * sizeof(CLLocationCoordinate2D));
for (int i = 0; i < count; i++) {
AMapNaviPoint *coordinate = [[aRoute routeCoordinates] objectAtIndex:i];
coords[i].latitude = [coordinate latitude];
coords[i].longitude = [coordinate longitude];
}
self.fullTraceLine = [MAPolyline polylineWithCoordinates:coords count:count];
[kMAPMANAGER.mapView addOverlay:self.fullTraceLine];
free(coords);
}
重要代码块2.
#pragma mark --新的定位或者服务器推给你的定位
- (void)updateLocation:(CLLocation *)location {
CLLocationCoordinate2D coordinate = location.coordinate;
if (coordinate.latitude <= 0 || coordinate.longitude <= 0) {
return;
}
if (location.horizontalAccuracy < 100 && location.horizontalAccuracy > 0)
{
double lastDis = [location distanceFromLocation:self.currentRecord.endLocation];
NSLog(@"---------这个距离:(%.2f)-----------",lastDis);
if (lastDis < 0.0 || lastDis > 10) {
[self.currentRecord addLocation:location];
// 其实这里可以置小车为中间点 也可以画线
//[kMAPMANAGER.mapView setCenterCoordinate:location.coordinate animated:YES];
[self.tempTraceLocations addObject:location];
if (self.tempTraceLocations.count >= kTempTraceLocationCount) {
NSLog(@"---------开始纠偏----------");
[self queryTraceWithLocations:self.tempTraceLocations withSaving:NO];
[self.tempTraceLocations removeAllObjects];
// 把最后一个再add一遍，否则会有缝隙
[self.tempTraceLocations addObject:location];
}
}
}
}
#pragma mark --纠偏处理
- (void)queryTraceWithLocations:(NSArray <CLLocation *>*)locations withSaving:(BOOL)saving
{
if (locations.count < 2) {
return;
}
NSMutableArray *mArr = [NSMutableArray array];
for (CLLocation *loc in locations) {
MATraceLocation *tLoc = [[MATraceLocation alloc] init];
tLoc.loc = loc.coordinate;
tLoc.speed = loc.speed * 3.6; //m/s 转 km/h
tLoc.time = [loc.timestamp timeIntervalSince1970] *1000;
tLoc.angle = loc.course;
[mArr addObject:tLoc];
}
__weak typeof(self) weakSelf = self;
__unused NSOperation *op = [self.traceManager queryProcessedTraceWith:mArr type:-1 processingCallback:nil finishCallback:^(NSArray<MATracePoint *> *points, double distance) {
NSLog(@"--------纠偏完成:%ld---------",points.count);
[weakSelf updateUserlocationTitleWithDistance:distance];
[weakSelf addFullTrace:points];
} failedCallback:^(int errorCode, NSString *errorDesc) {
NSLog(@"--------纠偏失败:%@---------",errorDesc);
}];
}
// 小车将要平滑移动的点
- (void)addFullTrace:(NSArray<MATracePoint*> *)tracePoints {
NSInteger count = tracePoints.count;
if (count < 2) {
return ;
}
CLLocationCoordinate2D *pCoords = malloc(sizeof(CLLocationCoordinate2D) * count);
if (!pCoords) {
return;
}
NSMutableArray *points = [NSMutableArray array];
for (int i = 0; i < count; ++i) {
//1.结构体
MATracePoint *p = [tracePoints objectAtIndex:i];
CLLocationCoordinate2D *pCur = pCoords + i;
pCur->latitude = p.latitude;
pCur->longitude = p.longitude;
//2.经纬度数组
CLLocation *loc = [[CLLocation alloc] initWithLatitude:p.latitude longitude:p.longitude];
[points addObject:loc];
}
//把这个点给带小车的地图页面
if ([self.delegate respondsToSelector:@selector(locations:points:moveWithCoordinates:count:WithDuration:)]) {
[self.delegate locations:self points:points moveWithCoordinates:pCoords count:count WithDuration:count];
}
if (pCoords) {
free(pCoords);
}
}
// 距离
- (void)updateUserlocationTitleWithDistance:(double)distance {
//self.totalTraceLength += distance; //
}
重要代码块3.
#pragma mark ------------------------------- 定位加工 代理 -----------------------------------------
- (void)locations:(JBKLocations *)locations points:(NSArray *)points moveWithCoordinates:(CLLocationCoordinate2D *)coords count:(NSInteger)count WithDuration:(CGFloat)duration {
DLog(@"--------来了老弟------------\n");
[self.allPoints addObjectsFromArray:points];
NSInteger totalCount = self.allPoints.count;
self.all_coords = malloc(sizeof(CLLocationCoordinate2D) * totalCount);
for (int i = 0; i < totalCount; i++) {
CLLocation *loc = self.allPoints[i];
self.all_coords[i] = loc.coordinate;
}
__weak typeof(self) weakSelf = self;
double speed = 120.0 / 3.6;
float dis = 120.0;
[self.carAnnotation addMoveAnimationWithKeyCoordinates:coords count:count withDuration:(dis / speed) withName:nil completeCallback:^(BOOL isFinished) {
weakSelf.passedTraceCoordIndex += count;
weakSelf.title = [NSString stringWithFormat:@"小车移动(%ld)",(long)weakSelf.passedTraceCoordIndex];
}];
}
- (void)updateTracePassed
{
if(self.carAnnotation.isAnimationFinished) {
return;
}
if(self.passedTraceLine) {
[kMAPMANAGER.mapView removeOverlay:self.passedTraceLine];
}
//
NSInteger needCount = self.passedTraceCoordIndex + 2;
CLLocationCoordinate2D *coords = malloc(sizeof(CLLocationCoordinate2D) * needCount);
memcpy(coords, self.all_coords, sizeof(CLLocationCoordinate2D) * (self.passedTraceCoordIndex + 1));
coords[needCount - 1] = self.carAnnotation.coordinate;
self.passedTraceLine = [MAPolyline polylineWithCoordinates:coords count:needCount];
[kMAPMANAGER.mapView addOverlay:self.passedTraceLine];
free(coords);
#if 0
NSInteger totalCount = self.allPoints.count;
self.passedTraceLine = [MAPolyline polylineWithCoordinates:self.all_coords count:totalCount];
[kMAPMANAGER.mapView addOverlay:self.passedTraceLine];
#endif
}
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