https://www.leadtools.com/help/sdk/dh/javascript/ac/annstroke-strokedashcap.html
StrokeDashCap Property (AnnStroke) | Leadtools.Annotations.Engine | HTML5 JavaScript Help
Gets or sets the AnnStrokeLineCap style used at the end of the dashes that make up dashed lines drawn with this AnnStroke object.
propertyleadtoolsannotationsenginejavascript