stroke join type "round" requires setTransform before the rounded corners manifest.

[guest]

Stroke join type "round" requires setTransform before the rounded corners manifest. Sample code here:

dojo.require("dojo.gfx.*");
dojo.require("dojo.html.layout");
dojo.require("dojo.html.style");

var color = "#ffffcc";
container = dojo.byId("bubble");
var surface = dojo.gfx.createSurface(container, 350, 250);
var my_rect=surface.createRect({x: 0, y:0, width:250, height:150});
my_rect.setFill(color);
my_rect.setStroke({color: color, width: 10, join: "round" });
// The next line if enabled shows the corners, if not - does not
my_rect.setTransform({ dx: 10, dy: 10 });

Furthermore, the dx, dy have to be >= stroke width. Is this a bug or mis-documentation?

Konrads konrads@…

[Eugene Lazutkin]

Looks like a bug --- I will investigate it.

[Eugene Lazutkin]

Actually it is not a bug. Theoretically a stroke style doesn't change the geometry, in the Real Life^TM it does, if it is thick enough. It looks like a half of thick stroke is physically outside of rectangle, so if your rectangle is clipped on surface's boundaries (it does), it will cut off 3 of 4 corners. The right-bottom corner is not clipped, so you can see it rounded. By moving your rectangle you move it out of clipping boundaries. Just change the stroke color to something different and you will see the effect of clipping. This behavior consistent in SVG and VML.