93ae928236
added image change while dragging markers, increased (invisible) size of drag marker, fixed issues with drag marker and highlight marker overlapping
121 lines
3.7 KiB
JavaScript
121 lines
3.7 KiB
JavaScript
/*
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU AFFERO General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Affero General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
or see http://www.gnu.org/licenses/agpl.txt.
|
|
*/
|
|
|
|
// OSRM via marker routines
|
|
// [find correct position for a via marker]
|
|
|
|
// store location of via points returned by server
|
|
OSRM.GLOBALS.via_points = null;
|
|
|
|
|
|
OSRM.Via = {
|
|
|
|
// find route segment of current route geometry that is closest to the new via node (marked by index of its endpoint)
|
|
_findNearestRouteSegment: function( new_via ) {
|
|
var min_dist = Number.MAX_VALUE;
|
|
var min_index = undefined;
|
|
|
|
var p = OSRM.G.map.latLngToLayerPoint( new_via );
|
|
var positions = OSRM.G.route.getPoints();
|
|
for(var i=1; i<positions.length; i++) {
|
|
var _sqDist = L.LineUtil._sqClosestPointOnSegment(p, positions[i-1], positions[i], true);
|
|
if( _sqDist < min_dist) {
|
|
min_dist = _sqDist;
|
|
min_index = i;
|
|
}
|
|
}
|
|
|
|
return min_index;
|
|
},
|
|
|
|
|
|
// find the correct index among all via nodes to insert the new via node, and insert it
|
|
findViaIndex: function( new_via_position ) {
|
|
// find route segment that is closest to click position (marked by last index)
|
|
var nearest_index = OSRM.Via._findNearestRouteSegment( new_via_position );
|
|
|
|
// find correct index to insert new via node
|
|
var new_via_index = OSRM.G.via_points.length;
|
|
var via_index = Array();
|
|
for(var i=0; i<OSRM.G.via_points.length; i++) {
|
|
via_index[i] = OSRM.Via._findNearestRouteSegment( new L.LatLng(OSRM.G.via_points[i][0], OSRM.G.via_points[i][1]) );
|
|
if(via_index[i] > nearest_index) {
|
|
new_via_index = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// add via node
|
|
return new_via_index;
|
|
},
|
|
|
|
|
|
//function that draws a drag marker
|
|
dragTimer: new Date(),
|
|
|
|
drawDragMarker: function(event) {
|
|
if( OSRM.G.route.isShown() == false)
|
|
return;
|
|
if( OSRM.G.dragging == true )
|
|
return;
|
|
|
|
// throttle computation
|
|
if( (new Date() - OSRM.Via.dragTimer) < 25 )
|
|
return;
|
|
OSRM.Via.dragTimer = new Date();
|
|
|
|
// get distance to route
|
|
var minpoint = OSRM.G.route._current_route.route.closestLayerPoint( event.layerPoint );
|
|
var min_dist = minpoint._sqDist;
|
|
|
|
// get distance to markers
|
|
var mouse = event.latlng;
|
|
for(var i=0, size=OSRM.G.markers.route.length; i<size; i++) {
|
|
if(OSRM.G.markers.route[i].label=='drag')
|
|
continue;
|
|
var position = OSRM.G.markers.route[i].getPosition();
|
|
var dist = OSRM.G.map.project(mouse).distanceTo(OSRM.G.map.project(position));
|
|
if( dist < 20 )
|
|
min_dist = 1000;
|
|
}
|
|
|
|
// check whether mouse is over another marker
|
|
var pos = OSRM.G.map.layerPointToContainerPoint(event.layerPoint);
|
|
var obj = document.elementFromPoint(pos.x,pos.y);
|
|
for(var i=0, size=OSRM.G.markers.route.length; i<size; i++) {
|
|
if(OSRM.G.markers.route[i].label=='drag')
|
|
continue;
|
|
if( obj == OSRM.G.markers.route[i].marker._icon)
|
|
min_dist = 1000;
|
|
}
|
|
|
|
// special care for highlight marker
|
|
if( OSRM.G.markers.highlight.isShown() ) {
|
|
if( OSRM.G.map.project(mouse).distanceTo(OSRM.G.map.project( OSRM.G.markers.highlight.getPosition() ) ) < 20 )
|
|
min_dist = 1000;
|
|
else if( obj == OSRM.G.markers.highlight.marker._icon)
|
|
min_dist = 1000;
|
|
}
|
|
|
|
if( min_dist < 400) {
|
|
OSRM.G.markers.dragger.setPosition( OSRM.G.map.layerPointToLatLng(minpoint) );
|
|
OSRM.G.markers.dragger.show();
|
|
} else
|
|
OSRM.G.markers.dragger.hide();
|
|
}
|
|
|
|
}; |