<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html; charset=UTF-8" http-equiv="Content-Type"> <title></title> </head> <body bgcolor="#ffffff" text="#000000"> Hi Hilaire, On 6/22/2021 4:42 PM, Hilaire Fernandes via Cuis-dev wrote: <blockquote cite="mid:6c0414be-95e2-52ff-dfa7-0747997ab5fa@drgeo.eu" type="cite"> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> Hi Juan, For DrGeo GUI user experience[1], I need to select morphs at a given distance of the hand. Practically, it means to select morphs intersecting with a circle whose center is the hand. I also want to select the morphs completely overlapped by other morphs, so user gets the choice to select the morph he want. Is it possible with vector graphics? </blockquote> Great questions! Most likely what we have today is not enough, but this is a good time to improve. Right now, if you have several overlapping morphs and you get the halo menu and select "embed into", you get a submenu with the overlapped morphs so you can select one of them. (drag the main menu a bit so it doesn't cover your morphs, and you can see better). Besides, you can "grab" most morphs with the mouse, just like windows. Something we don't have is a concept of "selected morphs", like regular OSs let you select several icons in a desktop, or several files in a file browser. So, what is that you are in need for? - The ability to select several morphs at a time (without grabbing them), so you can later do something with them? (this could include ways to add / remove morphs from "current selection") - The same, but just one morph? (this could include ways to cycle "next morph" "previous morph" "child" "parent", etc, until reaching the desired morph) - Just choose several morphs in a "modal" way? - The same, but just one morph? (This is what is possible with the "embed into" menu option) - Something completely different? This is the perfect time to think about useful mouse / keyboard gestures and their effect on morphs. Anybody with any experience using applications for drawing / painting / cad / desktop publishing, please chime in, and suggest the ways you know about and like. If there is any literature on the subject, it will be useful too. <blockquote cite="mid:6c0414be-95e2-52ff-dfa7-0747997ab5fa@drgeo.eu" type="cite"> Thanks Hilaire [1] When the user need to select point, segment, line circle with the mouse. <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="http://blog.drgeo.eu">http://blog.drgeo.eu</a></pre> </blockquote> Thanks! <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>