[Inkscape-user] How to make an *SVG* connector?

Discussion:

Steve Litt

2017-05-12 20:57:45 UTC

Hi all,

I want to be able to make an *SVG* connector that doesn't rely on the
facilities of Inkscape to do its thing. According to this URL there is
such a thing:

https://dev.w3.org/SVG/modules/connector/SVGConnector.html#ConnectorElement

When I make a connector in Inkscape using the little connector symbol,
in XML it shows up as a path, not a connector, and it has
inkscape:connector-type. When I save as plain SVG, the
inkscape:connector-type goes away, and it's nothing more than a line
segment.

How do I make a real SVG connector in Inkscape?

Thanks,

SteveT

Steve Litt
May 2017 featured book: Twenty Eight Tales of Troubleshooting
http://www.troubleshooters.com/28

Martin Owens

2017-05-12 21:16:17 UTC

Permalink

Hi Steve,

What you're looking at there is draft svg specification. Something that
wasn't accepted as svg. At the moment, SVG 1.1 and 2.0 both don't have
connector support. This specification was spun out into a module
because it's not useful to web browsers, so it sits over there waiting
for someone to add it to inkscape.

But even if we did, it wouldn't be supported in browsers, it'd just be
useful to us. So not exactly useful overall.

What was your plan?

Best Regards, Martin Owens

Post by Steve Litt
Hi all,
I want to be able to make an *SVG* connector that doesn't rely on the
facilities of Inkscape to do its thing. According to this URL there is
https://dev.w3.org/SVG/modules/connector/SVGConnector.html#ConnectorE
lement
When I make a connector in Inkscape using the little connector
symbol,
in XML it shows up as a path, not a connector, and it has
inkscape:connector-type. When I save as plain SVG, the
inkscape:connector-type goes away, and it's nothing more than a line
segment.
How do I make a real SVG connector in Inkscape?
Thanks,
SteveT
Steve Litt
May 2017 featured book: Twenty Eight Tales of Troubleshooting
http://www.troubleshooters.com/28
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C R

2017-05-12 21:34:24 UTC

Permalink

As someone who uses connectors all the damn time, I'd like to toss in
support for... uh more support. :D
They actually slow down inkscape, and the more of them they are the
worse it gets. If someone could fix that and bring proper support to
svg (even Inkscape's svg 2.0+ that will surely result from continued
development) I'm all for it. I know others who also want better
connector support as well.

-C

Post by Martin Owens
Hi Steve,
What you're looking at there is draft svg specification. Something that
wasn't accepted as svg. At the moment, SVG 1.1 and 2.0 both don't have
connector support. This specification was spun out into a module
because it's not useful to web browsers, so it sits over there waiting
for someone to add it to inkscape.
But even if we did, it wouldn't be supported in browsers, it'd just be
useful to us. So not exactly useful overall.
What was your plan?
Best Regards, Martin Owens

Post by Steve Litt
Hi all,
I want to be able to make an *SVG* connector that doesn't rely on the
facilities of Inkscape to do its thing. According to this URL there is
https://dev.w3.org/SVG/modules/connector/SVGConnector.html#ConnectorE
lement
When I make a connector in Inkscape using the little connector symbol,
in XML it shows up as a path, not a connector, and it has
inkscape:connector-type. When I save as plain SVG, the
inkscape:connector-type goes away, and it's nothing more than a line
segment.
How do I make a real SVG connector in Inkscape?
Thanks,
SteveT
Steve Litt
May 2017 featured book: Twenty Eight Tales of Troubleshooting
http://www.troubleshooters.com/28
-------------------------------------------------------------------
-----------
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Steve Litt

2017-05-12 23:25:13 UTC

Permalink

On Fri, 12 May 2017 22:34:24 +0100

Post by C R
As someone who uses connectors all the damn time, I'd like to toss in
support for... uh more support. :D
They actually slow down inkscape, and the more of them they are the
worse it gets. If someone could fix that and bring proper support to
svg (even Inkscape's svg 2.0+ that will surely result from continued
development) I'm all for it. I know others who also want better
connector support as well.

Victor Westmann

2017-05-13 00:41:12 UTC

Permalink

Hi Steve,

it's funny you mention this... because I was just thinking about this
yesterday.

If we could make some symbols (Open Symbols) that could be pieces of
diagrams.

It might be possible. What kind of diagrams are you talking about though?

--Victor Westmann

Post by Steve Litt
On Fri, 12 May 2017 22:34:24 +0100

Coincidentally, or perhaps not, today while I was messing around with a
connector in a drawing in Inkscape, my user interface started going so
slow I thought it wasn't responding. At the time, I chalked it up to
the fact that I was XML-editing the connector in ways it probably
shouldn't have been, as well as snaking it between "connector-avoid"
rectangles.
But after your mentioning that connectors make things go slow, perhaps
my experience was an example of what you're saying.
I've been using dia for block diagrams. Perhaps if Inkscape connectors
get a little faster I'll block diagram in Inkscape.
SteveT
Steve Litt
May 2017 featured book: Twenty Eight Tales of Troubleshooting
http://www.troubleshooters.com/28
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Check out the vibrant tech community on one of the world's most
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brynn

2017-05-14 20:57:52 UTC

Permalink

Post by C R
As someone who uses connectors all the damn time, I'd like to toss in

support for... uh more support. :D

I agree! It's a useful feature which could use some love :-)

All best,
brynn

-----Original Message-----
From: C R
Sent: Friday, May 12, 2017 3:34 PM
To: Inkscape User Community
Subject: Re: [Inkscape-user] How to make an *SVG* connector?

As someone who uses connectors all the damn time, I'd like to toss in
support for... uh more support. :D
They actually slow down inkscape, and the more of them they are the
worse it gets. If someone could fix that and bring proper support to
svg (even Inkscape's svg 2.0+ that will surely result from continued
development) I'm all for it. I know others who also want better
connector support as well.

-C

Post by C R
Hi Steve,
What you're looking at there is draft svg specification. Something that
wasn't accepted as svg. At the moment, SVG 1.1 and 2.0 both don't have
connector support. This specification was spun out into a module
because it's not useful to web browsers, so it sits over there waiting
for someone to add it to inkscape.
But even if we did, it wouldn't be supported in browsers, it'd just be
useful to us. So not exactly useful overall.
What was your plan?
Best Regards, Martin Owens

Post by Steve Litt
Hi all,
I want to be able to make an *SVG* connector that doesn't rely on the
facilities of Inkscape to do its thing. According to this URL there is
https://dev.w3.org/SVG/modules/connector/SVGConnector.html#ConnectorE
lement
When I make a connector in Inkscape using the little connector symbol,
in XML it shows up as a path, not a connector, and it has
inkscape:connector-type. When I save as plain SVG, the
inkscape:connector-type goes away, and it's nothing more than a line
segment.
How do I make a real SVG connector in Inkscape?
Thanks,
SteveT
Steve Litt
May 2017 featured book: Twenty Eight Tales of Troubleshooting
http://www.troubleshooters.com/28
-------------------------------------------------------------------
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Check out the vibrant tech community on one of the world's most
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Steve Litt

2017-05-12 23:19:46 UTC

Permalink

On Fri, 12 May 2017 17:16:17 -0400

Post by Martin Owens
Hi Steve,
What you're looking at there is draft svg specification. Something
that wasn't accepted as svg. At the moment, SVG 1.1 and 2.0 both
don't have connector support. This specification was spun out into a
module because it's not useful to web browsers, so it sits over there
waiting for someone to add it to inkscape.
But even if we did, it wouldn't be supported in browsers, it'd just be
useful to us. So not exactly useful overall.
What was your plan?

I'm making a web page with lots of screw heads, and when you click two
of them, a connector (wire) connects the two of them. If they'd worked
in a browser, SVG connectors would have been the easiest way to do
this. But now that I know SVG connectors won't work, I'll just use a
line segment and properly set its d property based on the cx and cy of
the two clicked screw heads. For a straight line segment, I think this
is going to be fairly easy. To get good looking curved wires will
require quite a few calculations.

But before I went to all that trouble, I just wanted to check and make
sure I couldn't use a SVG connector.

Thanks,

SteveT

Steve Litt
May 2017 featured book: Twenty Eight Tales of Troubleshooting
http://www.troubleshooters.com/28