本文整理汇总了C++中CoordinateSequence::getAt方法的典型用法代码示例。如果您正苦于以下问题：C++ CoordinateSequence::getAt方法的具体用法？C++ CoordinateSequence::getAt怎么用？C++ CoordinateSequence::getAt使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CoordinateSequence的用法示例。
在下文中一共展示了CoordinateSequence::getAt方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: LineMergeDirectedEdge
void
LineMergeGraph::addEdge(const LineString *lineString)
{
if (lineString->isEmpty()) return;
#if GEOS_DEBUG
cerr<<"Adding LineString "<<lineString->toString()<<endl;
#endif
CoordinateSequence *coordinates =
CoordinateSequence::removeRepeatedPoints(lineString->getCoordinatesRO());
const Coordinate& startCoordinate=coordinates->getAt(0);
const Coordinate& endCoordinate=coordinates->getAt(coordinates->getSize()-1);
planargraph::Node* startNode=getNode(startCoordinate);
planargraph::Node* endNode=getNode(endCoordinate);
#if GEOS_DEBUG
cerr<<" startNode: "<<*startNode<<endl;
cerr<<" endNode: "<<*endNode<<endl;
#endif
planargraph::DirectedEdge *directedEdge0=new LineMergeDirectedEdge(startNode,
endNode,coordinates->getAt(1),
true);
newDirEdges.push_back(directedEdge0);
planargraph::DirectedEdge *directedEdge1=new LineMergeDirectedEdge(endNode,
startNode,coordinates->getAt(coordinates->getSize()-2),
false);
newDirEdges.push_back(directedEdge1);
planargraph::Edge *edge=new LineMergeEdge(lineString);
newEdges.push_back(edge);
edge->setDirectedEdges(directedEdge0, directedEdge1);
#if GEOS_DEBUG
cerr<<" planargraph::Edge: "<<*edge<<endl;
#endif
add(edge);
#if GEOS_DEBUG
cerr<<" After addition to the graph:"<<endl;
cerr<<" startNode: "<<*startNode<<endl;
cerr<<" endNode: "<<*endNode<<endl;
#endif
delete coordinates;
}示例2: _moveToLineAsCoordinate
Coordinate WayAverager::_moveToLineAsCoordinate(long ni, double nWeight, const LineString* ls,
double lWeight)
{
shared_ptr<Node> n = _map.getNode(ni);
Point* point(GeometryFactory::getDefaultInstance()->createPoint(n->toCoordinate()));
// find the two closest points
CoordinateSequence* cs = DistanceOp::closestPoints(point, const_cast<LineString*>(ls));
Coordinate result = Coordinate(cs->getAt(0).x * nWeight + cs->getAt(1).x * lWeight,
cs->getAt(0).y * nWeight + cs->getAt(1).y * lWeight);
delete cs;
delete point;
return result;
}示例3: dimension
CoordinateArraySequence::CoordinateArraySequence(
const CoordinateSequence &c )
:
CoordinateSequence(c),
vect(new vector<Coordinate>(c.size())),
dimension(c.getDimension())
{
for (size_t i = 0, n = vect->size(); i < n; ++i) {
(*vect)[i] = c.getAt(i);
}
}示例4: _findNearestPointOnFeature
Coordinate BaseComparator::_findNearestPointOnFeature(shared_ptr<OsmMap> map, Coordinate c)
{
Coordinate result;
// find the nearest feature
long wId = map->getIndex().findNearestWay(c);
shared_ptr<Way> w = map->getWay(wId);
// find the nearest point on that feature.
shared_ptr<Point> p(GeometryFactory::getDefaultInstance()->createPoint(c));
shared_ptr<LineString> ls = ElementConverter(map).convertToLineString(w);
CoordinateSequence* cs = DistanceOp::closestPoints(p.get(), ls.get());
cs->getAt(0, result);
delete cs;
return result;
}示例5: _init
void VectorLayerEditor::_init()
{
if(_inited)
return;
// Load geometry
AmigoApplicationData &appData = AmigoApplication::instance().getData();
if(auto project = appData.getUser().projects.findProject(_editorParams.projectId))
{
std::vector<std::string> wkbOut;
std::shared_ptr<APIv1::Dataset> ds = std::dynamic_pointer_cast<APIv1::Dataset>(project->datasets.findDataset(_editorParams.datasetId));
if(ds)
{
if(_editorParams.savedWkb.empty())
{
project->db.geoQueryWKB(ds->table_name, _editorParams.jsonRecord, wkbOut, ds->online_only);
AMIGO_LOG_I(TAG, "::_init() wkbOut.size()=%d\n", wkbOut.size());
}
else
{
AMIGO_LOG_I(TAG, "::_init() restore '%s'\n", _editorParams.savedWkb.c_str());
_geometry = GeometryHandler::parseWKBHex(_editorParams.savedWkb);
}
if(_geometry == NULL)
{
if(wkbOut.size()==1 && wkbOut[0].size()>0)
{
AMIGO_LOG_I(TAG, "::_init() '%s'\n", wkbOut[0].c_str());
_geometry = GeometryHandler::parseWKBHex(wkbOut[0]);
} else {
// There is no geometry
_createEmptyGeometry();
}
}
if(_geometry!=NULL)
{
GeometryTypeId gtype = _geometry->getGeometryTypeId();
int type;
switch (gtype) {
case GEOS_POINT:
type = ShapeEditor::T_POINT;
break;
case GEOS_LINESTRING:
type = ShapeEditor::T_LINE;
break;
case GEOS_LINEARRING:
type = ShapeEditor::T_LINE;
break;
case GEOS_POLYGON:
type = ShapeEditor::T_POLYGON;
break;
case GEOS_MULTIPOINT:
type = ShapeEditor::T_POINTS;
break;
case GEOS_MULTILINESTRING:
type = ShapeEditor::T_LINES;
break;
case GEOS_MULTIPOLYGON:
type = ShapeEditor::T_POLYGONS;
break;
case GEOS_GEOMETRYCOLLECTION:
type = ShapeEditor::T_POINTS;
break;
default:
type = ShapeEditor::T_POINTS;
break;
};
AMIGO_LOG_I(TAG, "::_init() type=%d, gtype=%d\n", type, gtype);
_coords.clear();
for(size_t g = 0; g < _geometry->getNumGeometries(); g++)
{
PointList pList;
CoordinateSequence *cs = _geometry->getGeometryN(g)->getCoordinates();
// Remove closing point in polygons
unsigned size = cs->getSize() - ((type == ShapeEditor::T_POLYGONS || type == ShapeEditor::T_POLYGON)? 1 : 0);
for(unsigned i=0; i < size; i++ )
{
Coordinate c;
cs->getAt(i, c);
double alt = Globe::instance()->getGlobeSceneHandler()->getElevationAt( c.y, c.x);
pList.push_back( iiMath::vec3(c.y, c.x, alt) );
}
_coords.push_back(pList);
delete cs;
}
_shapeEditor.load(type, _coords);
}
}
else
{
//.........这里部分代码省略.........