Smooth curved turns with Line Control Nutiteq SDK

Question

I am trying to draw a line on the map with curve edges using the following code

LineStyleBuilder lineStyleBuilder = new LineStyleBuilder();
                    lineStyleBuilder.setColor(new Color(0xFF01579B));
                    lineStyleBuilder.setWidth(8);
                    // Add second line to the second layer.
                    route = new Line(linePoses, lineStyleBuilder.buildStyle());
                    route.setMetaDataElement("ClickText", "Line nr 2");
                    vectorDataSource1.add(route);

https://github.com/nutiteq/hellomap3d-android/blob/master/com.nutiteq.advancedmap3/src/com/nutiteq/advancedmap3/Overlays2DActivity.java

I am using the same code as mentioned in the sample code of the nutiteq but some how i am not getting the smooth curve at the edges.

Answer 1

There was a bug in SDK 3.x versions prior to 3.2.1RC that produced similar artefacts as in your image. It only happened if the line string contained duplicate consecutive vertices. This was fixed in 3.2.1RC.

Answer 2

You can smooth the corners for example using these:

lineStyleBuilder.setLineJointType(LineJointType.LINE_JOINT_TYPE_ROUND);
lineStyleBuilder.setStretchFactor(2);