September 2008 - Inkscape Devel

Re: [Inkscape-devel] "Live Pen" Feature
by Tony Vigil 04 Sep '08

04 Sep '08

Microsoft Expression uses a profile shape method that is just like what Bulia suggested. The width equals the path length and the nodes along the profile shape equal the distance away from the centerline for the brush object's width. The LPE could be given three pieces of information... bottom most item is the stroke path, then brush object and then the profile path. If no profile path is selected, then the brush object is drawn along the stroke path without any change in brush width. ----- Original Message ---- Message: 2 Date: Wed, 03 Sep 2008 20:15:14 +0200 From: Maximilian Albert <Anhalter42@...173...> Subject: Re: [Inkscape-devel] "Live Pen" Feature Bounty To: bulia byak <buliabyak@...400...> Cc: inkscape-devel(a)lists.sourceforge.net, J.B.C.Engelen@...1578... Message-ID: <48BED432.6080504@...173...> Content-Type: text/plain; charset=ISO-8859-1; format=flowed bulia byak schrieb: > I think we will need to store widths not per node, but as a list of > length along path/width pairs, with length measured in percentages > of the total length of subpath That's an excellent idea. Since I had something like Pajarico's other suggestion in mind (see different email), I was thinking about how to store per-node information. But separating the width info from nodes and storing it in the described way will make the LPE very powerful and flexible. >> And finally, for the actual profile shape I think we should use a >> Spiro path for extra smoothness and natural flow. However, if we want >> to eventually support sharp width changes, we will need to store for >> each point its type - whether it is a smooth Spiro point or a cusp >> point. > I'm not sure if I understand you correctly here (in particular: what do > you mean by "profile shape"?), but why not apply the LPE to any path > whatsoever? The 2geom routines are flexible enough to make this > possible. If you want it to be on top of a spiro path, just use LPE > stacking. > Max

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"Live Pen" Feature Bounty
by Dave Crossland 04 Sep '08

04 Sep '08

Hi, I know Bryce has blogged about the annoyance of offering to fund development instead of contributing code, but if any developers are interested in Inkscape work for hire, I'd welcome the opportunity to commission the kind of feature seen in the LivePen Illustator plugin from http://01-lab.com in Inkscape :-) -- Regards, Dave

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Re: [Inkscape-devel] "Live Pen" Feature
by Tony Vigil 03 Sep '08

03 Sep '08

Could something like Microsoft's Expression live vector brush effects be created for Inkscape's LPE? If you have not seen what it does, Expression allows you to create a path and stroke the path using another object where the width of the stroke along the path is based on an contour path (think XY chart) where the width (X) is the location along the path to be stroked and the height (Y) is the width of the stroke at the point along the path. Ideally, the stroke object could be made up of multiple paths with various characteristics. For instance, you could create a stroke object that mimics a water color brush stroke. - Tony

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question regarding wishblade robocraft support...
by stuart 03 Sep '08

03 Sep '08

Sorry for posting here if the user list if better. And sorry about the subject if it has been talked about before. I couldn't get sourceforge to add me to the inkscape user mail list and sourceforge was timing out on all my archive searches with no results. --- I remember reading that there was a patch or something to inkscape to support wishblade and robocraft users. Has that been integrated into the inkscape application? Is that what the DXF is all about? Wishblade users can not use DXF directly (needing the robocraft software to import DXF and change it to some sort of native (and maybe proprietary) GSD). Is there a way to get inkscape to save images in GSD in order to simplify the process? Ideally, I would prefer to skip bringing up the wishblade application. In my set up, I do all my work in linux (GIMP/INKSCAPE) and only the plotting in Windows. If I could do everything in linux it would simplify the flow of work greatly. Has anyone figured out how the craftrobo is communicated to in order to use it with common open source linux plotting software? Better yet, has anyone figured out how the wishblade has been crippled in order to use it with common open source linux plotting software? ...thanks

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sorting out PS/EPS/PDF export mess
by bulia byak 03 Sep '08

03 Sep '08

It's always bad when the UI offers two ways to do the same thing without really explaining what's the difference. It's equally bad when UI uses some meaningless techno jargon such as "cairo" :) Unfortunately 0.46 was released still in the middle of a transition period which made both these evils inevitable. Now that we're in 0.47, however, I would like to address this issue by switching all of PS, EPS, and PDF output to cairo, removing the builtin Inkscape exporter, and purging the mentions of "cairo" from the UI. As a matter of fact, this has already partially happened (not sure who did this). Right now both PS export options work via cairo and produce identical output. The Inkscape-native PDF export is nowhere to be seen. The only exporter which still uses native code is EPS. However, since 1.5.2 cairo can produce EPS files too, so this can all be done in one place now (closng several EPS export bugs along the way). The only downside is that it will require cairo >= 1.5.2, is everyone OK with that? By the way, the latest cairo 1.5.12 finally fixes the bug where zooming in too closely in Outline mode produced messy broken lines. Now everything is neat and clean. Upgrade is recommended. -- bulia byak Inkscape. Draw Freely. http://www.inkscape.org

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LPE tool
by Alexandre Prokoudine 02 Sep '08

02 Sep '08

Hi, Honestly, I'm as much happy as much puzzled about the new tool called LPE tool. All across source code it is called an LPE tool, which probably means it's supposed to do editing of LPE params on canvas or draw LPE. It does both, but is restricted to geometric constructions only (and not all of them), which is why it probably has a "Create geometry constructions" tooltip. So the question is conceptual: is it supposed to do more than it does now and cover all possible LPEs or is it only geometry constructions related? Alexandre

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[Bug 264052] looks like it could use some attention...
by john cliff 02 Sep '08

02 Sep '08

dont know how many of you read the launchpad emails, but i thought this one was one of the more interesting bug reports I've seen recently... https://bugs.launchpad.net/bugs/264052

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new tool - lattice deformation
by ryrych＠...400... 01 Sep '08

01 Sep '08

hi! In latest revisions a new LPE effect appeared - Lattice deformation. But it hasn't been working properly these days. I propose to create a new tool - exactly Lattice deformation. This tool (idea) is in Adobe Photoshop. This tool would be very helpful. Currently we can bend a shape in a few way, but only in one direction. This tool would enable to bend the shape in many directions. Have a look at my image: http://img233.imageshack.us/img233/8486/siatkasn2.png I want to show a shape which is bent from top and bottom but I couldn't do it in Inkscape but I hope you know what I talking about - plaese see Everest logo: http://www.lackenbach.com/Images/Newsletter2000/Everlast.gif What do you thing about it? regards, Wojciech RRH Ryrych ps. sorry for my English

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Re: [Inkscape-devel] [Inkscape-user] svn-19741 node tool crash
by Jon A. Cruz 01 Sep '08

01 Sep '08

On Aug 20, 2008, at 10:35 AM, Docsonic wrote: > > I just updated svn to 19741 and it has an odd crash situation - > > If I open a document or create new and add objects, I can > manipulate the > objects with either the select tool or the node tool with no problems. > However, if I convert any object to a path and select the path with > the node > tool, Inkscape crashes as soon as I click on the path. > I also tried drawing a rectangle, converting to a path and > selecting with > the select tool. Then I chose the node tool so that the path nodes are > displayed and I tried rubberbanding 2 of the nodes. The moment I > let go of > the mouse button, Inkscape crashes. > > This is in WinXP SP2 I was chasing this down the other night with a few others. We narrowed it down to only happening when -O2 was used with the build, but not -O0. In other words it was only showing up with optimizations on. Maybe that will give someone a hint for reproducing and/or fixing.

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