diff --git a/springyui.js b/springyui.js index 5fd2460..d1937bb 100755 --- a/springyui.js +++ b/springyui.js @@ -167,7 +167,8 @@ jQuery.fn.springy = function(params) { } } - var spacing = 6.0; + //change default to 10.0 to allow text fit between edges + var spacing = 10.0; //was 6.0 before // Figure out how far off center the line should be drawn var offset = normal.multiply(-((total - 1) * spacing)/2.0 + (n * spacing)); @@ -235,7 +236,11 @@ jQuery.fn.springy = function(params) { ctx.textBaseline = "top"; ctx.font = (edge.data.font !== undefined) ? edge.data.font : edgeFont; ctx.fillStyle = "#5BA6EC"; - ctx.fillText(text, (x1+x2)/2, (y1+y2)/2); + var xText = (s1.x+s2.x)/2; + var yText = (s1.y+s2.y)/2; + ctx.translate(xText, yText); + ctx.rotate(getTextAngle(s1.x,s1.y,s2.x,s2.y)); + ctx.fillText(text, 0,-2); ctx.restore(); } @@ -275,6 +280,12 @@ jQuery.fn.springy = function(params) { renderer.start(); + // return angle of text in radian + function getTextAngle(x1, y1, x2, y2){ + var tan = (y2-y1)/(x2-x1); + return Math.atan(tan); + } + // helpers for figuring out where to draw arrows function intersect_line_line(p1, p2, p3, p4) { var denom = ((p4.y - p3.y)*(p2.x - p1.x) - (p4.x - p3.x)*(p2.y - p1.y));