html - How to contourn elements with a line using canvas -


i'm trying contour points using line, in theory 1 line connects , in different ways.

i'm creating 2 lines , adding half-circle in begining , @ end of lines, covers first option below, have define every pixel , in application user able define points outlined.

this code i've done i'm not sure if best way:

https://jsfiddle.net/gng0ush5/

<canvas id="mycanvas" width="646" height="350" style="border:1px solid #d3d3d3;"></canvas>         <script>             var c = document.getelementbyid("mycanvas");             var ctx = c.getcontext("2d");             ctx.beginpath();             ctx.moveto(150, 118);             ctx.lineto(290, 170);              ctx.linewidth = 10;             ctx.strokestyle = 'red';             ctx.stroke();              ctx.moveto(145, 180);             ctx.lineto(260, 228);              ctx.stroke();              ctx.moveto(150, 120);              ctx.arc(150, 150, 30, 5, math.pi / 2, true);              ctx.stroke();              ctx.rotate(0.1);              ctx.moveto(290, 137);                ctx.arc(290, 169, 33, 5, math.pi / 1.5, false);              ctx.stroke();          </script>

these patterns want cover:

enter image description here


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