<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html; charset=UTF-8" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> Hi Hilaire, On 6/28/2020 9:51 AM, Hilaire Fernandes via Cuis-dev wrote: <blockquote cite="mid:2a833910-7ffb-36ab-608e-fa853917279a@drgeo.eu" type="cite"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> Hi Juan, I find some time to test it. To do so I only need to change the parent of the DrGDrawable class to VectorGraphicsPasteUpMorph. Easy. I read your hack, it adds one message send per rendered morphs. I don't have strong opinion on that. </blockquote> Ok. <blockquote cite="mid:2a833910-7ffb-36ab-608e-fa853917279a@drgeo.eu" type="cite"> <img moz-do-not-send="false" src="cid:part1.04080800.06060806@jvuletich.org" title="DrGeo on VectorGraphics canvas" alt="" height="551" width="590"> You can observe the lines are blurred and the colour is not right. The lines should be black and they are too thick for a one pixel width line. Some lines are black because there are several segments in top of each other. </blockquote> This is because of the anti aliasing. See <a class="moz-txt-link-freetext" href="https://en.wikipedia.org/wiki/Spatial_anti-aliasing#Signal_processing_approach_to_anti-aliasing">https://en.wikipedia.org/wiki/Spatial_anti-aliasing#Signal_processing_approach_to_anti-aliasing</a> . According with signal processing theory, you can not do 1-pixel features without aliasing. The VectorGraphics engines follow the theory. So, if you ask for a line that is narrower than what the engine can draw, it draws it at the minimum possible width (i.e. slightly wider), but using translucency to compensate (otherways it would become too "heavy" due to being wider than asked). Following signal processing theory is the reason why the results are less pixelated than, for example, Cairo. <blockquote cite="mid:2a833910-7ffb-36ab-608e-fa853917279a@drgeo.eu" type="cite"> Adding a StringMorph will set Cuis in an infinite loop scenario without way to escape (Alt+[.] did not work): <pre>| c | c _ VectorGraphicsPasteUpMorph new openInWorld. c addMorph: (StringMorph new contents: 'Hello')</pre> </blockquote> You need to set a TrueType font. VectorGraphicsEngine can not use StrikeFonts. <blockquote cite="mid:2a833910-7ffb-36ab-608e-fa853917279a@drgeo.eu" type="cite"> Thanks! Hilaire <pre class="moz-signature" cols="72">-- GNU Dr. Geo <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://drgeo.eu">http://drgeo.eu</a> <a moz-do-not-send="true" class="moz-txt-link-freetext" href="https://pouet.chapril.org/@hilaire">https://pouet.chapril.org/@hilaire</a></pre> </blockquote> Cheers, <pre class="moz-signature" cols="72">-- Juan Vuletich <a class="moz-txt-link-abbreviated" href="http://www.cuis-smalltalk.org">www.cuis-smalltalk.org</a> <a class="moz-txt-link-freetext" href="https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev">https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev</a> <a class="moz-txt-link-freetext" href="https://github.com/jvuletich">https://github.com/jvuletich</a> <a class="moz-txt-link-freetext" href="https://www.linkedin.com/in/juan-vuletich-75611b3">https://www.linkedin.com/in/juan-vuletich-75611b3</a> @JuanVuletich</pre> </body> </html>