From: Richard Querin <rfquerin@...155...> Subject: Re: [Inkscape-user] why doesn't this work? To: chrysalis_reborn@...12..., "Inkscape User Community" <inkscape-user(a)lists.sourceforge.net&gt; Date: Tuesday, February 24, 2009, 9:20 AM On Tue, Feb 24, 2009 at 9:08 AM, Elwin Estle <chrysalis_reborn@...12...>wrote: > I am trying to make a simple wedge shape that is 1/6 of a hexagon. > > So I used the polygon tool to make a hexagon. I convert it to a path. I > duplicated it, shrunk it down some and used a boolean operation to cut a > smaller hex shaped hole in the exact center of the larger hexagon. > > Then I used the node tool to select the extraneous nodes and delete them. > Now I have two lines, both part of the same path, but not connected. When > I select two end points on the lines and try to join them with a new > segment, I get an error saying I haven't selected two nodes!!! > > So just for the heck of it, I used the bezier tool to make two separate > lines, combined them to a single path and then tried to connect two end > nodes with a new segment. Worked just fine. I could try to do the shape I > am after this way, but getting everything positioned right might be > something of a pain. > > I am just wondering why the first technique doesn't work. Seems like it > should... > I'm not 100% sure I follow your first technique, but are the two nodes you're trying to join closed? If you create two paths (both closed paths) and then try to select two nodes (one from each path) and join them it won't work. Are they really "end" nodes or just nodes that are part of a closed shape? I'm pretty sure for instance that you can't have more than 2 paths coming into a single node. Maybe I'm misunderstanding though. RQ

On Tue, Feb 24, 2009 at 9:08 AM, Elwin Estle <chrysalis_reborn@...12...> wrote: > I am trying to make a simple wedge shape that is 1/6 of a hexagon. > > So I used the polygon tool to make a hexagon. I convert it to a path. I duplicated it, shrunk it down some and used a boolean operation to cut a smaller hex shaped hole in the exact center of the larger hexagon. > > Then I used the node tool to select the extraneous nodes and delete them. Now I have two lines, both part of the same path, but not connected. When I select two end points on the lines and try to join them with a new segment, I get an error saying I haven't selected two nodes!!! What's happening is a bit unintuitive, because the nodes look like end nodes, but aren't. If you have stroke turned on, it looks like two separate subpaths that are just straight lines, each with one node at each end. Why aren't they end-nodes, right? When you create the donut shape by cutting a hole in the hexagon, you get two sets of nodes: the six around the outer perimeter, and the six around the inner perimeter. Those two sets are disjoint; there are no connections between the outer nodes and the inner nodes. When you delete nodes, the two sets are kept separate. If you delete one node at a time, you can see that at no time is there a connection made between the outer and inner, yet each set is still connected in a loop. For example, delete one of the outer nodes, and the outer perimeter is still a loop, but with 5 nodes instead of 6. If you kept deleting one node at a time from the outer perimeter until only two were left, you would see just a line between them, and they appear like end-nodes. But there is still a loop! There is a connection from one to the other, and another connection back again. So they aren't end-nodes. You can verify this by click-and-dragging the line between them. It will pull out one of the connections. Then you can remove that connection by clicking on it and choosing the "split path between two non-endpoint nodes" icon on the toolbar. The icon looks like two connected nodes on top pointing to two disconnected nodes below. Once you do the same to the line formed from the inner perimeter nodes, then you really will have two subpaths with two end-nodes each, and you can join them the way you intended. Kurt

From: heathenx <heathenx@...155...> Subject: Re: [Inkscape-user] why doesn't this work? To: "Inkscape User Community" <inkscape-user(a)lists.sourceforge.net&gt; Date: Tuesday, February 24, 2009, 10:36 AM Kurt Hutchinson wrote the following on 2/24/2009 10:27 AM: > On Tue, Feb 24, 2009 at 9:08 AM, Elwin Estle <chrysalis_reborn@...12...> wrote: >> I am trying to make a simple wedge shape that is 1/6 of a hexagon. >> >> So I used the polygon tool to make a hexagon. I convert it to a path. I duplicated it, shrunk it down some and used a boolean operation to cut a smaller hex shaped hole in the exact center of the larger hexagon. >> >> Then I used the node tool to select the extraneous nodes and delete them. Now I have two lines, both part of the same path, but not connected. When I select two end points on the lines and try to join them with a new segment, I get an error saying I haven't selected two nodes!!! > > What's happening is a bit unintuitive, because the nodes look like end > nodes, but aren't. If you have stroke turned on, it looks like two > separate subpaths that are just straight lines, each with one node at > each end. Why aren't they end-nodes, right? > > When you create the donut shape by cutting a hole in the hexagon, you > get two sets of nodes: the six around the outer perimeter, and the six > around the inner perimeter. Those two sets are disjoint; there are no > connections between the outer nodes and the inner nodes. When you > delete nodes, the two sets are kept separate. If you delete one node > at a time, you can see that at no time is there a connection made > between the outer and inner, yet each set is still connected in a > loop. For example, delete one of the outer nodes, and the outer > perimeter is still a loop, but with 5 nodes instead of 6. > > If you kept deleting one node at a time from the outer perimeter until > only two were left, you would see just a line between them, and they > appear like end-nodes. But there is still a loop! There is a > connection from one to the other, and another connection back again. > So they aren't end-nodes. You can verify this by click-and-dragging > the line between them. It will pull out one of the connections. Then > you can remove that connection by clicking on it and choosing the > "split path between two non-endpoint nodes" icon on the toolbar. The > icon looks like two connected nodes on top pointing to two > disconnected nodes below. > > Once you do the same to the line formed from the inner perimeter > nodes, then you really will have two subpaths with two end-nodes each, > and you can join them the way you intended. > > Kurt > ...or you can just select both segments, combine them, select both end nodes, then hit your join nodes. heathenx ---------------------------------------------------------------------- -------- Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _______________________________________________ Inkscape-user mailing list Inkscape-user(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/inkscape-user