/**
* Finds a line ID given 2 GPS points
* @param pTrafficInfo - pointer to traffic info
* @param start - first node point
* @param end - second node point
* @param Line - point to line to return the found line
* @param allowedDeviation - allowed deviation when searching the nodes
* @return TRUE - If a line is found
*/
static BOOL RTTrafficInfo_Get_LineId(RTTrafficInfo *pTrafficInfo, RoadMapPosition *start, RoadMapPosition *end, char *name, PluginLine *Line, int allowedDeviation){
RoadMapNeighbour neighbours_start[6], neighbours_end[6];
int count_start, count_end = 0;
int layers[128];
int layers_count;
RoadMapPosition context_save_pos;
int context_save_zoom;
RoadMapPosition from;
RoadMapPosition to;
int i;
roadmap_math_get_context(&context_save_pos, &context_save_zoom);
layers_count = roadmap_layer_all_roads(layers, 128);
roadmap_math_set_context(start, 20);
count_start = roadmap_street_get_closest(start, 0, layers, layers_count,
1, &neighbours_start[0], 5);
// first try to find it in the same segment
for (i=0; i<count_start; i++){
RoadMapStreetProperties properties;
const char *street_name;
roadmap_square_set_current(neighbours_start[i].line.square);
roadmap_street_get_properties(neighbours_start[i].line.line_id, &properties);
street_name = roadmap_street_get_street_fename(&properties);
if (strcmp(street_name, pTrafficInfo->sStreet))
continue;
roadmap_plugin_line_from (&neighbours_start[i].line, &from);
roadmap_plugin_line_to (&neighbours_start[i].line, &to);
if ( ( samePosition(&from, start,allowedDeviation) && samePosition(&to, end,allowedDeviation)) || (samePosition(&from, end,allowedDeviation) && samePosition(&to, start,allowedDeviation)) ){
if (samePosition(&from, start,allowedDeviation))
pTrafficInfo->iDirection = ROUTE_DIRECTION_WITH_LINE;
else
pTrafficInfo->iDirection = ROUTE_DIRECTION_AGAINST_LINE;
roadmap_math_set_context(&context_save_pos, context_save_zoom);
*Line = neighbours_start[i].line;
return TRUE;
}
}
//if not try to extend the line on the starting point
for (i=0; i<count_start; i++){
RoadMapStreetProperties properties;
const char *street_name;
roadmap_square_set_current(neighbours_start[i].line.square);
roadmap_street_get_properties(neighbours_start[i].line.line_id, &properties);
street_name = roadmap_street_get_street_fename(&properties);
if (strcmp(street_name, pTrafficInfo->sStreet)){
continue;
}
roadmap_street_extend_line_ends (&neighbours_start[i].line, &from, &to, FLAG_EXTEND_BOTH, NULL, NULL);
if ( ( samePosition(&from, start,allowedDeviation) && samePosition(&to, end,allowedDeviation)) || (samePosition(&from, end,allowedDeviation) && samePosition(&to, start,allowedDeviation)) ){
if (samePosition(&from, start,allowedDeviation))
pTrafficInfo->iDirection = ROUTE_DIRECTION_WITH_LINE;
else
pTrafficInfo->iDirection = ROUTE_DIRECTION_AGAINST_LINE;
roadmap_street_extend_line_ends (&neighbours_start[i].line, &from, &to, FLAG_EXTEND_BOTH, extendCallBack, (void *)pTrafficInfo);
roadmap_math_set_context(&context_save_pos, context_save_zoom);
*Line = neighbours_start[i].line;
return TRUE;
}
}
roadmap_math_set_context(end, 20);
count_end = roadmap_street_get_closest(end, 0, layers, layers_count,
1, &neighbours_end[0], 4);
for (i=0; i<count_end; i++){
RoadMapStreetProperties properties;
const char *street_name;
roadmap_square_set_current(neighbours_end[i].line.square);
roadmap_street_get_properties(neighbours_end[i].line.line_id, &properties);
street_name = roadmap_street_get_street_fename(&properties);
if (strcmp(street_name, pTrafficInfo->sStreet)){
continue;
}
roadmap_street_extend_line_ends (&neighbours_end[i].line, &from, &to, FLAG_EXTEND_BOTH, NULL, NULL);
if ( ( samePosition(&from, start,allowedDeviation) && samePosition(&to, end,allowedDeviation)) || (samePosition(&from, end,allowedDeviation) && samePosition(&to, start,allowedDeviation)) ){
if (samePosition(&to, end,allowedDeviation))
pTrafficInfo->iDirection = ROUTE_DIRECTION_WITH_LINE;
else
pTrafficInfo->iDirection = ROUTE_DIRECTION_AGAINST_LINE;
roadmap_street_extend_line_ends (&neighbours_end[i].line, &from, &to, FLAG_EXTEND_BOTH, extendCallBack, (void *)pTrafficInfo);
roadmap_math_set_context(&context_save_pos, context_save_zoom);
*Line = neighbours_end[i].line;
return TRUE;
}
}
roadmap_math_set_context(&context_save_pos, context_save_zoom);
return FALSE;
}
static void get_street_from_line (int square, int line, const char **street_name) {
RoadMapStreetProperties properties;
roadmap_square_set_current(square);
roadmap_street_get_properties (line, &properties);
*street_name = roadmap_street_get_street_fename (&properties);
}
