Hi all, <br>&nbsp;&nbsp;&nbsp; I&#39;ve been having trouble getting lines smooth looking when drawing with the pencil tool.&nbsp; Looking at the code, it seems like a reasonable job of interpolation is being done, but it is done while the path is being drawn, so it can&#39;t base the interpolation on all the points drawn by the user. 
<br><br>I made some changes to do the interpolation of the entire path on button release:<br><br>Here is an example using identical mouse points and identical tolerances:<br><br><a href="http://arcsin.org/temp/Screenshot-3.png">
http://arcsin.org/temp/Screenshot-3.png</a><br><br>On the left, is the current way; on the right, is the path interpolated using the entire curve.&nbsp; Deferring interpolation decreases the number of knots created and improves (imo) the result appearance.&nbsp;&nbsp; The tolerance is still adjustable in the same way it is currently.
<br><br><br> Here&#39;s the diff, which is only a demonstration, and in no condition to be actually used: <a href="http://arcsin.org/temp/diff">http://arcsin.org/temp/diff</a><br><br>In order to make the final patch, i guess the questions are ... is the way i&#39;m saving the points ok (or should i use std::vector, etc),&nbsp; should we forgo interpolating at all during drawing and instead just show the user a line path (which would greatly simplify the pencil-context code)?&nbsp;&nbsp; or do people want to retain the old behavior and create a new setting/tool.
<br><br>regards, <br>rob<br><br>