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This commit is contained in:
Patrick Niklaus
2016-01-05 12:04:04 +01:00
parent 552cdbfe20
commit 028ca5c9d9
84 changed files with 988 additions and 903 deletions
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src/engine/polyline_compressor.cpp
+8 -7
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@@ -62,16 +62,17 @@ PolylineCompressor::get_encoded_string(const std::vector<SegmentInformation> &po
return encode_vector(delta_numbers);
}
std::vector<FixedPointCoordinate> PolylineCompressor::decode_string(const std::string &geometry_string) const
std::vector<FixedPointCoordinate>
PolylineCompressor::decode_string(const std::string &geometry_string) const
{
std::vector<FixedPointCoordinate> new_coordinates;
int index = 0, len = geometry_string.size();
int lat = 0, lng = 0;
while (index < len)
while (index < len)
{
int b, shift = 0, result = 0;
do
do
{
b = geometry_string.at(index++) - 63;
result |= (b & 0x1f) << shift;
@@ -82,7 +83,7 @@ std::vector<FixedPointCoordinate> PolylineCompressor::decode_string(const std::s
shift = 0;
result = 0;
do
do
{
b = geometry_string.at(index++) - 63;
result |= (b & 0x1f) << shift;
@@ -92,8 +93,8 @@ std::vector<FixedPointCoordinate> PolylineCompressor::decode_string(const std::s
lng += dlng;
FixedPointCoordinate p;
p.lat = COORDINATE_PRECISION * (((double) lat / 1E6));
p.lon = COORDINATE_PRECISION * (((double) lng / 1E6));
p.lat = COORDINATE_PRECISION * (((double)lat / 1E6));
p.lon = COORDINATE_PRECISION * (((double)lng / 1E6));
new_coordinates.push_back(p);
}