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How can I draw a line at right angles to the previous line? (perpendicular)
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strelkovandrey
- Posts: 7
- Joined: Fri May 26, 2017 4:38 pm
How can I draw a line at right angles to the previous line? (perpendicular)
Good afternoon, I want to draw a line and put a point, the next draw perpendicular to the previous one, how can this be done?
Re: How can I draw a line at right angles to the previous line? (perpendicular)
Currently, I think the best way is to draw first, using the horizontal/vertical mode of the Pen tool, then rotating the whole thing later. Or you could use guides, and turn them around. Or an (axonometric) grid that is tilted. (the last two options need snapping enabled, and rotation of the scaffolding isn't quick).
Something doesn't work? - Keeping an eye on the status bar can save you a lot of time!
Inkscape FAQ - Learning Resources - Website with tutorials (German and English)
Inkscape FAQ - Learning Resources - Website with tutorials (German and English)
Re: How can I draw a line at right angles to the previous line? (perpendicular)
A substitute can be using the rectangle tool ...until the new rotate canvas option will be fully developed(?).
Re: How can I draw a line at right angles to the previous line? (perpendicular)
Want a preview, Lazur? I compiled it a couple of days ago 
Something doesn't work? - Keeping an eye on the status bar can save you a lot of time!
Inkscape FAQ - Learning Resources - Website with tutorials (German and English)
Inkscape FAQ - Learning Resources - Website with tutorials (German and English)
Re: How can I draw a line at right angles to the previous line? (perpendicular)
(but I think it's supposed to rotate the 'notion' of horizontal/vertical together with the view)
Something doesn't work? - Keeping an eye on the status bar can save you a lot of time!
Inkscape FAQ - Learning Resources - Website with tutorials (German and English)
Inkscape FAQ - Learning Resources - Website with tutorials (German and English)
Re: How can I draw a line at right angles to the previous line? (perpendicular)
(resizing the window when it rotated mode looks funny... The drawing dances around in the visible area in circles.)
Something doesn't work? - Keeping an eye on the status bar can save you a lot of time!
Inkscape FAQ - Learning Resources - Website with tutorials (German and English)
Inkscape FAQ - Learning Resources - Website with tutorials (German and English)
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strelkovandrey
- Posts: 7
- Joined: Fri May 26, 2017 4:38 pm
Re: How can I draw a line at right angles to the previous line? (perpendicular)
The fact is that in this way I line a satellite image with buildings, and all buildings have different sizes, angles of rotation.
And it turns out that if I roughly draw the shape of the building and rotate its desired angle, I can no longer change the individual length and width in a certain direction, only the entire figure can change
And it turns out that if I roughly draw the shape of the building and rotate its desired angle, I can no longer change the individual length and width in a certain direction, only the entire figure can change
Re: How can I draw a line at right angles to the previous line? (perpendicular)
If you use rectangles, and modify them with the rectangle tool, this will still be possible.
Something doesn't work? - Keeping an eye on the status bar can save you a lot of time!
Inkscape FAQ - Learning Resources - Website with tutorials (German and English)
Inkscape FAQ - Learning Resources - Website with tutorials (German and English)
Re: How can I draw a line at right angles to the previous line? (perpendicular)
The Bezier tool (Shift+F6) has an option "Create a sequence of paraxial line segments".
I guess you are looking for something convenient like this, however, this option allows only to draw horizontal and vertical lines. Actually, it could be worth modifying this tool such that it will start the 90° turns with respect to the angle of first segment drawn (worth a feature request?). In case you want to draw a strictly vertical or horizontal lines you always can press Ctrl-Key. So I do not really see the benefit of this option (besides not having to hold the Shift-Key all the time.)
Well, as @Moini mentioned you could use guides.
In order to make life easier you need to enable "Snap to path", "Snap to cusp node" and "Snap to guides" in the Snap controls bar. Furthermore, you need "Snap perpendicularly" which is (for some strange reasons) hidden under:
Menubar | File | Document Properties | Snap | Miscellaneous | Snap perpendicularly
I assume you know that you can create a guide by a mouse click on the ruler, keep holding the mouse key and drag the guide where you want it.
1. draw a segment with the Freehand Tool (F6)
2. get/drage a first guide, snap it perpendicular to this segment and move it to the start node.
3. continue to draw a segment at the endnode
4. get a second guide and let it snap perpendicularly to the previous drawn segment and move/snap it to its endnode.
5. draw a line, let it snap to this second guide and end it with a double click
6. continue the line and let it snap perpendicular to the first guide, double click
7. continue the line to the starting point
Done!
Sounds a bit complicated, but I hope you can follow my description. An animated demo might be helpful...
- BezierToolOption.png (3.73 KiB) Viewed 5775 times
Well, as @Moini mentioned you could use guides.
In order to make life easier you need to enable "Snap to path", "Snap to cusp node" and "Snap to guides" in the Snap controls bar. Furthermore, you need "Snap perpendicularly" which is (for some strange reasons) hidden under:
Menubar | File | Document Properties | Snap | Miscellaneous | Snap perpendicularly
I assume you know that you can create a guide by a mouse click on the ruler, keep holding the mouse key and drag the guide where you want it.
1. draw a segment with the Freehand Tool (F6)
2. get/drage a first guide, snap it perpendicular to this segment and move it to the start node.
3. continue to draw a segment at the endnode
4. get a second guide and let it snap perpendicularly to the previous drawn segment and move/snap it to its endnode.
5. draw a line, let it snap to this second guide and end it with a double click
6. continue the line and let it snap perpendicular to the first guide, double click
7. continue the line to the starting point
Done!
Sounds a bit complicated, but I hope you can follow my description. An animated demo might be helpful...
Win7/64, Inkscape 0.92.2
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strelkovandrey
- Posts: 7
- Joined: Fri May 26, 2017 4:38 pm
Re: How can I draw a line at right angles to the previous line? (perpendicular)
theozh wrote:The Bezier tool (Shift+F6) has an option "Create a sequence of paraxial line segments".
BezierToolOption.png I guess you are looking for something convenient like this, however, this option allows only to draw horizontal and vertical lines. Actually, it could be worth modifying this tool such that it will start the 90° turns with respect to the angle of first segment drawn (worth a feature request?). In case you want to draw a strictly vertical or horizontal lines you always can press Ctrl-Key. So I do not really see the benefit of this option (besides not having to hold the Shift-Key all the time.)
Well, as @Moini mentioned you could use guides.
In order to make life easier you need to enable "Snap to path", "Snap to cusp node" and "Snap to guides" in the Snap controls bar. Furthermore, you need "Snap perpendicularly" which is (for some strange reasons) hidden under:
Menubar | File | Document Properties | Snap | Miscellaneous | Snap perpendicularly
I assume you know that you can create a guide by a mouse click on the ruler, keep holding the mouse key and drag the guide where you want it.
1. draw a segment with the Freehand Tool (F6)
2. get/drage a first guide, snap it perpendicular to this segment and move it to the start node.
3. continue to draw a segment at the endnode
4. get a second guide and let it snap perpendicularly to the previous drawn segment and move/snap it to its endnode.
5. draw a line, let it snap to this second guide and end it with a double click
6. continue the line and let it snap perpendicular to the first guide, double click
7. continue the line to the starting point
Done!
Sounds a bit complicated, but I hope you can follow my description. An animated demo might be helpful...
Thank for detail answer!,... but I little confused (my English is not well), can You show...
I found simple portable software which allow record screen (http://www.screentogif.com/)
Thanks!
Re: How can I draw a line at right angles to the previous line? (perpendicular)
@strelkovandrey, maybe this helps additionally to the above description...
don't forget to have all the necessary snapping options on.
don't forget to have all the necessary snapping options on.
- RotatedRectangle.gif (208.65 KiB) Viewed 5740 times
Win7/64, Inkscape 0.92.2
Re: How can I draw a line at right angles to the previous line? (perpendicular)
I keep forgetting about perpendicular snapping - this looks really doable
Something doesn't work? - Keeping an eye on the status bar can save you a lot of time!
Inkscape FAQ - Learning Resources - Website with tutorials (German and English)
Inkscape FAQ - Learning Resources - Website with tutorials (German and English)
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strelkovandrey
- Posts: 7
- Joined: Fri May 26, 2017 4:38 pm
Re: How can I draw a line at right angles to the previous line? (perpendicular)
@theozh, Thanks, It seems that there is no other way out, so I did something similar to your decision
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Re: How can I draw a line at right angles to the previous line? (perpendicular)
For your purpose, a probably easier way might be the following:
use the LPE (Live Path Effect) Pattern along path and pattern a rectangle along a line.
This you can easily rotate and size with two handles.
Since this is a bit complicated to explain, just take the attached SVG...
And copy a red rectangle to your SVG file.
- move a red rectangle such that its upper left corner aligns with a corner of a building
- use the Node Tool (F2)
- drag the upper right corner node of the rectangle to the other corner of the building
- drag the handle (circle) such that the width of the rectangle matches your building
- copy/duplicate rectangles as many as you need.
edit: oh, I just see your post, it's not just rectangles but more complex (but all 90°) structures...
use the LPE (Live Path Effect) Pattern along path and pattern a rectangle along a line.
This you can easily rotate and size with two handles.
Since this is a bit complicated to explain, just take the attached SVG...
And copy a red rectangle to your SVG file.
- move a red rectangle such that its upper left corner aligns with a corner of a building
- use the Node Tool (F2)
- drag the upper right corner node of the rectangle to the other corner of the building
- drag the handle (circle) such that the width of the rectangle matches your building
- copy/duplicate rectangles as many as you need.
edit: oh, I just see your post, it's not just rectangles but more complex (but all 90°) structures...
- RotatedRectangle2.gif (240.32 KiB) Viewed 5727 times
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- RotatedRectangle.svg
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Last edited by theozh on Sat May 27, 2017 2:27 pm, edited 1 time in total.
Win7/64, Inkscape 0.92.2
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strelkovandrey
- Posts: 7
- Joined: Fri May 26, 2017 4:38 pm
Re: How can I draw a line at right angles to the previous line? (perpendicular)
Yes, it is true, I have more complex buildings. But what you showed to me is new, before I did not notice this and it's very useful. Thank you.
While I will use the methods described above, I hope in future releases Inkscape there will be some kind of similar tool
I want to note that I did not expect that this forum for the program will be so friendly, all thanks for the replies and quick help!
While I will use the methods described above, I hope in future releases Inkscape there will be some kind of similar tool
I want to note that I did not expect that this forum for the program will be so friendly, all thanks for the replies and quick help!
Re: How can I draw a line at right angles to the previous line? (perpendicular)
You're welcome!
From time to time, I take such questions to play around and try to find satisfying solutions and additionally broaden my own horizon with Inkscape. It's fun.
By the way, I filed a feature request:
https://bugs.launchpad.net/inkscape/+bug/1693925
As above mentioned, with the bezier-tool there is an option to draw lines in 90° steps, but only horizontally and vertically. Why not also tilted?
From time to time, I take such questions to play around and try to find satisfying solutions and additionally broaden my own horizon with Inkscape. It's fun
.By the way, I filed a feature request:
https://bugs.launchpad.net/inkscape/+bug/1693925
As above mentioned, with the bezier-tool there is an option to draw lines in 90° steps, but only horizontally and vertically. Why not also tilted?
Win7/64, Inkscape 0.92.2
Re: How can I draw a line at right angles to the previous line? (perpendicular)
At this time Inkscape does not allow relative rotation snapping of anything but guidelines.
Hopefully you can change the preferences to rotation snapping every 90 degrees and check the box that says guideline rotation is relative to original angle to work out a method to quickly draw rectilinear objects not aligned with x and y axes. You can alternatively check the relative change option in each guide's properties.
You can duplicate an object and convert to guides to start the process...
A completely different option would be to create an axonometric grid which allows you to specify the angle of the grid lines, if you know what tilt you want to give your drawing... This achieves a weak form of page rotation if your grid is fine.
Hopefully you can change the preferences to rotation snapping every 90 degrees and check the box that says guideline rotation is relative to original angle to work out a method to quickly draw rectilinear objects not aligned with x and y axes. You can alternatively check the relative change option in each guide's properties.
You can duplicate an object and convert to guides to start the process...
A completely different option would be to create an axonometric grid which allows you to specify the angle of the grid lines, if you know what tilt you want to give your drawing... This achieves a weak form of page rotation if your grid is fine.
Your mind is what you think it is.
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strelkovandrey
- Posts: 7
- Joined: Fri May 26, 2017 4:38 pm
Re: How can I draw a line at right angles to the previous line? (perpendicular)
Hmmm... axonometric grid interesting solution
In connection with my bad English did not fully understand how it is?
- scr2.jpg (121.52 KiB) Viewed 5651 times
Hopefully you can change the preferences to rotation snapping every 90 degrees and check the box that says guideline rotation is relative to original angle to work out a method to quickly draw rectilinear objects not aligned with x and y axes. You can alternatively check the relative change option in each guide's properties.
You can duplicate an object and convert to guides to start the process...
In connection with my bad English did not fully understand how it is?
Re: How can I draw a line at right angles to the previous line? (perpendicular)
Just for fun, another procedure without "hundreds" of guide lines...
As others mentioned above, in the current version of Inkcsape the canvas cannot yet be rotated, but can't you temporarily rotate your satellite image? That's probably what @Moini meant in the first answer.
- create a guide and move its origin to the corner of a building
- rotate the guide (Shift+Mouse drag) such that it aligns it with the edge of the building
- double click on the guide and copy the angle
- select your background image
- use the Transform dialog (Shift+Ctrl+M)
- select clockwise rotation
- paste the angle value
- apply (the image will be rotated such that your building edge is horizontal)
- use the Bezier tool (Shift+F6) and select Mode "Paraxial lines"
- draw the outline of your building(s) which have the same tilt angle
- rotate the image and your outline back counterclockwise
- continue with buildings with different tilt angle.
Actually, if you have buildings with non-90°corners, instead of the Bezier-Paraxial lines it might be better to use the Mode straight lines and for horizontal or vertical lines hold Ctrl-Key pressed when dragging a new segment.
As others mentioned above, in the current version of Inkcsape the canvas cannot yet be rotated, but can't you temporarily rotate your satellite image? That's probably what @Moini meant in the first answer.
- create a guide and move its origin to the corner of a building
- rotate the guide (Shift+Mouse drag) such that it aligns it with the edge of the building
- double click on the guide and copy the angle
- select your background image
- use the Transform dialog (Shift+Ctrl+M)
- select clockwise rotation
- paste the angle value
- apply (the image will be rotated such that your building edge is horizontal)
- use the Bezier tool (Shift+F6) and select Mode "Paraxial lines"
- draw the outline of your building(s) which have the same tilt angle
- rotate the image and your outline back counterclockwise
- continue with buildings with different tilt angle.
Actually, if you have buildings with non-90°corners, instead of the Bezier-Paraxial lines it might be better to use the Mode straight lines and for horizontal or vertical lines hold Ctrl-Key pressed when dragging a new segment.
- RotatedBuildings.gif (245.92 KiB) Viewed 5599 times
Win7/64, Inkscape 0.92.2