I don't think you need a script for that. You could just record an action that fills the current selection with the foreground color and assign a keyboard shortcut to it.
Then you can use the "Select Tool: Single Line" to select a single line of pixels and trigger your shortcut. Should make for a super fast workflow.
I would like to add a differing opinion. You can in fact sample with less points and have an ok and perfectly repeatable result. The trick is though that you must sample with a multiple of a period of your function! Offcourse this would require you to do some function analysis.
See your domain is from 0 to 10 with 30 samples. But you should probably sample ...
Inkscape's Paramentric Curves extension converts paramentric curves into Bézier curves, which are basically an estimation of the curve. If you don't have enough samples, the curves will be generated with fewer nodes, and will therefore be less accurate and a bit more wonky. Increase the samples to something like 80, and you should see an improvement.
Further to comments clarifying your problems, here's a demonstration. Using this method the size of the squares or rectangles doesn't matter. I've deliberately shown rectangles of different sizes. I use guides and snapping to ensure an exact fit.
Begin with two over lapping squares or rectangles, and drop guides where the black square will be placed. With ...
After the release of Inkscape 1.0, one can now do it this way:
echo "file-open:$INPUT_FILEPATH/$INPUT_FILENAME; export-filename:$DESTINATION; export-width:$NEW_RES; export-do" >> commands.txt
# Repeat above for each file
echo "quit" >> commands.txt
inkscape --shell < commands.txt
rm -f ./commands.txt
1) Draw your arrow and an extra line/bar
2) Place the arrow manually (without snapping) as you wish the arrowhead shall be to other objects. Place the bar at the arrowhead (snapping).
3) Make the bar 100% transparent (0% opaque).
Finally: Group the arrow and the bar so you can use copies of this group for well aligned/positioned arrows.
To just make it work again (not using the --shell mode), you could handle reading your commands.txt outside of inkscape and pass single commands to it. If you use xargs, you could run it even in parallel.
Assumming you have a commands.txt with all arguments in one line per input file, like
--export-filename=test72.png --export-width=72 input.svg
@PaoloGibellini answered my question. I just used the interpolate function, and it seemed to work fine.
Select the two lines, then go to Extensions > Generate from Path > Interpolate
Here is a video of it in action. I wasn't able to record the menu unfortunately.
You can make multiple midlines by changing the number of interpolate steps.
The shortcuts you seem to be talking about are for Outset Ctrl+) and Inset Ctrl+(, which also happen to be located on the 9 and 0 keys. Outset and Inset can also be found under the Path menu item in the main menu along the top. You need to have a path or object selected for it to work.
One trick to cover the gaps that the paint bucket leaves at the edges is to make a copy of your artwork into a new layer. Make the original invisible in the objects panel (=close the eye) and reduce the stroke width to 0,5 px in the copy. They will be rendered 1px wide which is the minimum.
Fill the areas you want in the copy and delete unwanted parts.
Unfortunately, vector objects don't do "T" shapes – that is the reason, why you cannot join one curve to the middle of another. Basically each vertex can only have (up to) two neighbours on the path. So one way or another, you will either have to use some workaround (like expanding the fill) or change your work flow from the start.
Registration Black, (CMYK Black), and CMYK White are protected colors in Scribus.
Personally, I think that this limitation should be removed, but I'm not sure that it will ever happen.
For now, you can just ignore those colors: if you don't use them they will not affect your exported document.
To be able to colour the shape that makes up the cat's head, it would need to be a separate closed path. One closed path can only have one fill colour (unless it's filled with a gradient obviously).
A simple solution might be to draw a straight line from the node that forms the corner, to overlap the other edge. Select both the line and shape, then do a ...
This is not directly possible, but a valid question.
A workaround would be to create a large rectangle, much larger than the page boundaries, then create a rectangle exactly the size of the page (using snapping to page borders), subtract that small rectangle from the larger to create a hole in it, set the fill to white, move it to a dedicated layer at the ...
Ok, so I actually found a solution on an Inkscape forum post here: https://inkscape.org/forums/cutplot/path-to-gcode-duplicate-lines-wrong-number-of-passes-workaround/
This appears to be a bug in Inkscape 1.0 caused by using Python 3 instead of Python 2, although my system version of Python is 2.7... oh well.
Anyway, the solution is to set "Cutting order" ...
If we do the operation on text, then the text must be ungrouped before it can be used in other operations. See this question for context:
Cutting a letter from a square Inkscape?
Also if the letter are not ungrouped, I believe that the ability to use Perspective Envelope with them is affected.
In Edit > Preferences > Behaviour > Transforms, deselect the "scale rounded corners in rectangles" option. You can also disable the "scale stroke width" option. You can also access these options in the controls bar along the top, when you have the Select and Transform tool selected.
Now when you scale the rectangle the corners won't scale.
Another method ...
A good time to make the Objects panel a part of your active toolset. With it you see what you have selected and you reach objects under groupings, clippings and maskings. Your current case doesn't urgently need this, but the situation becomes different when your drawing is complex.
Objects panel shows that group g841 is selected. The icon above the cursor ...
There are several methods
The easiest is:
With the Select and Transform Objects tool, Ctrl+click on the circle
Click and drag it to move it
Note: This method won't work properly unless the circle is actually within a group inside the clipping mask.
Using the Select and Transform Objects tool, double click the group. This will enter the ...
After checking the SVG, the issue seems to be multiple clipping masks throughout the design - especially those background elements and blocks of colour.
There are issues with some Inkscape SVG features not being supported in browsers, and it appears clipping masks are one of those features.
What I suggest you do is release those clipping masks, and instead ...
If the letter is still a text object, then this is a bug (regression) in Inkscape 1.0:
https://gitlab.com/inkscape/inkscape/-/issues/589 (it once worked with texts directly, doing Path > Difference)
In general, a conversion to path should not be needed for squares, circles, other shapes, and even no longer for clones.
Ungrouping would always be needed ...
Try ungrouping the letter after you convert it to a path. Inkscape always groups text after converting to path, even if it's only one letter.
Ctrl + Shift + G will ungroup.
FYI, check the text displayed on the panel at the very bottom of the screen (under the colours). You can often get a tip there as to what might be wrong. In this case, it would say one ...
Change the threshold setting to something like 80, before you fill. You may have to adjust this value as it will depend on the thickness and colour of the strokes, too much and it will likely fill over the strokes.
You can also increase the grow/shrink amount to something like 0.5px
This may result in slightly rounded corners, but you can select the fill, ...
There's nothing automatic as far as I know. Perhaps an extension could be written for it.
Anyway, you could align the stops of a gradient using snapping to paths which have been distributed using Align & Distribute.
If you click once on your object, you get a bounding box to stretch it, but if you click twice, you get different arrows around the box for rotation and shearing, only one relevant of the 8 arrows shown. (Somehow the yellow circle was lost by copying the image over here.)
By pulling the black arrow up/down you get the perspective effect (top ...
This can be done in Inkscape relatively easily, and the following method is similar to how the Shape Builder tool works in Adobe Illustrator.
Make sure everything is ungrouped, and there is no clipping mask just a regular circle instead to be used to cut everything out.
Make a combined path of the drawing plus the circle, by using Path > Combine Ctrl/...
Use Illustrator's 3D Extrude and Bevel effect. Give the shape a thick coloured stroke and no fill, then apply Effects > 3D > Extrude and Bevel, and use similar settings as shown below. Tweak as necessary.
Here I added a white fill to the shape, and a second new light in the 3D Extrude and Bevel options.