Gtk branch error: type cannot be constructed about imageview.jl

[timholy]

This branch hasn't been updated in quite a while; I think it was using a much older Gtk API. Since AFAIK we still haven't solved the Gtk binary distribution problem, that's sapped some of my enthusiasm. Plus, one of my main workhorse machines in my lab is CentOS 6.4, and their versions of Gtk are practically unusable (with either the 2.x or 3.x branches) so I'm kinda stuck with Tk.

But now with Ubuntu 14.04 out I plan to ditch CentOS, which will reinvigorate my interest in Gtk. Maybe over the summer we can make a push and get Gtk to the point where it can become the default toolkit. CC @vtjnash.

I will try to update this branch soon, however.

[kmsquire]

Thanks Tim.

I was led there by your comments in some older issues, and the desire to have a way to draw over an image (which I thought might be possible (or at least easier) with Gtk). Not sure that's true yet. Do you have any recommendations for drawing on an image? PyPlot is the best I have come up with so far, but it doesn't interact with Images too well by default.

[timholy]

This does have an annotation framework. It's relatively primitive, but perhaps it would do what you want?

[timholy]

Ah, I see that the annotations are not documented. See the annotations.jl file. Currently there is support for text labels and scale bars.

[kmsquire]

Thanks for the heads up. I'm needing to do things like draw lines or
circles, and mark points. If the current framework doesn't handle that,
I'll look at adding it. But I think integrating with a separate graphics
toolkit would be the most useful.

Cheers, Kevin

On Thursday, June 12, 2014, Tim Holy [email protected] wrote:

Ah, I see that the annotations are not documented. See the annotations.jl
file. Currently there is support for text labels and scale bars.

—
Reply to this email directly or view it on GitHub
https://github.com/timholy/ImageView.jl/issues/26#issuecomment-45888803.

[timholy]

The problem is that Gadfly doesn't AFAIK draw onscreen to a Cairo Canvas, and Winston insists on ownership of the entire canvas. I think the main thing you'd be giving up with not having a plotting package is display of axes.

You'll see that annotation.jl is tiny; it's been a while since I've worked with it, but I'm guessing adding lines (or circles) would probably be about 15 lines of code, and the bonus is that they will behave nicely under interactive zoom and panning.

[kmsquire]

Okay, I'll take a look.

On Thu, Jun 12, 2014 at 8:50 AM, Tim Holy [email protected] wrote:

The problem is that Gadfly doesn't AFAIK draw onscreen to a Cairo Canvas,
and Winston insists on ownership of the entire canvas. I think the main
thing you'd be giving up with not having a plotting package is display of
axes.

You'll see that annotation.jl is tiny; it's been a while since I've worked
with it, but I'm guessing adding lines (or circles) would probably be about
15 lines of code, and the bonus is that they will behave nicely under
interactive zoom and panning.

—
Reply to this email directly or view it on GitHub
https://github.com/timholy/ImageView.jl/issues/26#issuecomment-45909871.

[timholy]

Wow, the API changes in Gtk were pretty massive. But with 307d5b6, this branch should now work for you.