topic Add point to multipath in ArcGIS Runtime SDK for Android Questions

Add point to multipath

User123 — Wed, 28 Dec 2011 03:26:58 GMT

I'm trying to use multipath to draw a polyline on map.

I have a list of point.

              18301.4356455055, 36146.9169192426
              18885.8294820658, 35820.7585324813
              19550.6387151067, 35448.3823042103
              19679.1625972969, 35397.5744970106
              19731.6957098375, 35383.8743903451

How can i add them in multipath and draw a polyline on the map?

If anyone can help.

Thank you

Re: Add point to multipath

DanO_Neill — Wed, 28 Dec 2011 19:32:09 GMT

Since Polyline inherits from Multipath you can do something like the following workflow to create a Polyline from your list:

1. Create Point from list
Point pntStart = new Point(18301.4356455055, 36146.9169192426);
Point pntEnd = new Point(18885.8294820658, 35820.7585324813);
2. Create Segment from your Points
Segment seg1 = new Segment();
seg1.setStart(pntStart);
seg1.setEnd(pntEnd);
3. Add Segment to Polyline
Polyline p = new Polyline();
p.addSegment(seg1, true);

Re: Add point to multipath

NigelDsouza — Tue, 12 Mar 2013 04:38:29 GMT

hey
What you could also do is create an point array list like.
ArrayList<Point> points = new ArrayList<Point>();
*then populate this arrayilst with your points put the starting point at the 0'th index on the list ant the last at the last index of thr list.
*The create a multipath object. and run a loop that populates the multipath object with values from your array list.

Multipath multipath = new Polygon()/Polyline()
multipath.startPath(points.get(0));
for (int i = 1; i < points.size(); i++) {
multipath.lineTo(points.get(i));
}
Then create a symbol for it.
*
graphic = new Graphic(multipath,new SimpleLineSymbol(Color.BLACK, 4));

or for polygon

SimpleFillSymbol simpleFillSymbol = new SimpleFillSymbol(
Color.TRANSPARENT);
simpleFillSymbol.setAlpha(100);
simpleFillSymbol.setOutline(new SimpleLineSymbol(Color.BLACK, 4));
graphic = new Graphic(multipath,(simpleFillSymbol));
cheers!!