CODEWITHSUNDEEP
androidpolygongoogle-maps-android-api-2
Archie.bpgc
Archie.bpgc

Reputation: 24012

Unable to fill the polygon with a color

I am adding a Polygon like this:

PolygonOptions options = new PolygonOptions();
for (int x = 0; x <= 360; x++) {

//get LatLng ll
options.add(ll);
}
options.strokeColor(Color.BLUE);
options.strokeWidth(2);
options.fillColor(Color.CYAN);
map.addPolygon(options);

What i get is a blue stroke polygon(circle). But I am not able to fill it with a color(it just empty). What am i missing?

Thank You

Upvotes: 2

Views: 1966

Answers (3)

Niranjan kumar
Niranjan kumar

Reputation: 1

if duplicate points exits in list then also fill color will be not shown. actually I'm adding same point list two time into polygon's point list that the issue in my case

Upvotes: 0

C&#225;ssio Morales
C&#225;ssio Morales

Reputation: 131

According to the Docs, to fill the polygon with color, the vertices should be added in clockwise order. If you want to make holes, they should be added in counter-clockwise order

    List<GeoPoint> geoPoints = new ArrayList<>();
    //clockwise
    geoPoints.add(new GeoPoint(-8.146242825034385, -29.267578125));
    geoPoints.add(new GeoPoint(-12.8974891, -25.3125));
    geoPoints.add(new GeoPoint(-23.40276490, -33.585937499999));
    geoPoints.add(new GeoPoint(-17.895114303, -40.51757812));
    Polygon polygon = new Polygon();    //see note below
    geoPoints.add(geoPoints.get(0));    //forces the loop to close(connect last point to first point)
    polygon.getFillPaint().setColor(Color.RED); //set fill color,

    polygon.setPoints(geoPoints);

    //polygons supports holes too, points should be in a counter-clockwise order
    // List<List<GeoPoint>> holes = new ArrayList<>();
    // holes.add(geoPoints); //HERE geopoints has to be a different list from above
    // polygon.setHoles(holes);

Upvotes: 0

Antrromet
Antrromet

Reputation: 15414

Make sure that the vertices are added in counterclockwise order as given in the docs.

Upvotes: 2

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