topic Re: GeometryException when drawing a line on the map in ArcGIS Runtime SDK for Android Questions

GeometryException when drawing a line on the map

_lkerArg_n — Thu, 19 Jan 2012 13:24:54 GMT

I tried to draw a line on a graphic layer added to map with the lines of code below. I get a geometry exception. What am I doing wrong?

                           Segment segment = new Line();    segment.setStart(startPoint);    segment.setEnd(endPoint);        Log.d("SEGMENT", "x: " + segment.getStartX() + "y: " + segment.getStartY());        Symbol lineSymbol = new SimpleLineSymbol(Color.BLUE, 4);    someGraphicsLayer.addGraphic(new Graphic(segment, lineSymbol));

Re: GeometryException when drawing a line on the map

_lkerArg_n — Sun, 12 Dec 2021 03:22:45 GMT

I did what I want to by using Polyline.

Polyline poly = new Polyline();
poly.startPath(startPoint);
poly.lineTo(endPoint);
   
allyGraphicsLayer.addGraphic(new Graphic(poly, new SimpleLineSymbol(Color.BLUE, 5)));

Still i wonder what did I do wrong in the code in the previous post.

Re: GeometryException when drawing a line on the map

BradFrecker — Thu, 19 Jan 2012 16:09:48 GMT

I have seen the exact same error, and would also like to know what is wrong with the above code.

Re: GeometryException when drawing a line on the map

IvanBespalov — Sun, 12 Dec 2021 03:22:47 GMT

mggl,

Unfortunately I can not compile your code now, but try to use Polyline when creating a Graphic.

try
{
    Segment segment = new Line();
    segment.setStart(startPoint);
    segment.setEnd(endPoint);
    Log.d("SEGMENT", "x: " + segment.getStartX() + "y: " + segment.getStartY());

    Polyline pLine = new Polyline();
    pLine.addSegment(segment, true);
   
    Symbol lineSymbol = new SimpleLineSymbol(Color.BLUE, 4);
    int addedGraphicId = someGraphicsLayer.addGraphic(new Graphic(pLine, lineSymbol));
    Log.d("Class/activity name for logging", "Graphic added id=" + addedGraphicId);
}
catch (Exception ex)
{
    // log exception ex.getMessage()
}

Re: GeometryException when drawing a line on the map

SebastianGreifeneder1 — Fri, 20 Jan 2012 06:37:22 GMT

When you specify a Graphic you've to provide a "Geometry". IMO "Segment" itself isn't a Geometry, it's only part of it within polylines or polygons.
So, for graphics you should use Point, Polyline or Polygon.

Re: GeometryException when drawing a line on the map

IvanBespalov — Fri, 20 Jan 2012 06:49:37 GMT

Sebastian,

There are no any documentation from ESRI developers, where Segment is not a Geometry!

Also no any documentation about "witch Geometries types can be used with Graphic".

Finally:

So, for graphics you should use Point, Polyline or Polygon.

you right, but I did not find any documentation about it.