Accepted answer

it looks like it's been changed with v2.0. it is now tension:0. as of this writing the docs state it's linetension:0, but that seems incorrect.


set the option beziercurve to false.

window.onload = function(){
    var ctx = document.getelementbyid("canvas").getcontext("2d");

    window.myline = new chart(ctx).line(linechartdata, {
      responsive: true, 
      scalefontcolor: "#ff5972",
      beziercurve: false


it's right there in the line chart option list.. you can also have them be curved but "stiffer" by leaving the option set and then varying the beziercurvetension property.

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