RTPNGExporter - review needed

no no no :-(

It does not work for large pictures. Consider the following:

| b |

b := RTMondrianViewBuilder new.

b shape rectangle 

withBorder;

width: [ :cls | cls numberOfVariables * 5];

height: #numberOfMethods;

linearFillColor: #numberOfLinesOfCode within: RTObject withAllSubclasses.

b nodes: (Object withAllSubclasses copyFrom: 1 to: 3000).

b edgesFrom: #superclass.

b treeLayout.

b build.

^ b view

Nothing gets on the disk when you save :-(

Jan B. sent me a morphic based exporter. 

Alexandre

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Alexandre Bergel  http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

On Nov 13, 2014, at 12:36 PM, Alexandre Bergel <[hidden email]> wrote:

Hi Doru!

I have reviewer & improved the PNG exporter. I have tried it in my different situation, it seems to work well.

I have taken the decision to __not__ render fixed trachel shapes. I think this is okay in most of the cases we will face. 

Let me know! 

Cheers,

Alexandre

-- 
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Alexandre Bergel  http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

On Nov 12, 2014, at 12:43 PM, Tudor Girba <[hidden email]> wrote:

Hi Alex,

Could you please review the code in RTPNGExporter? We still get a little problem when exporting because it seems that there is a bit of clipping happening on the bottom and to the right.

Cheers,

Doru

--

www.tudorgirba.com

"Every thing has its own flow"

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2014-11-13 20:11 GMT+01:00 Alexandre Bergel <[hidden email]>:

no no no :-(

It does not work for large pictures. Consider the following:

| b |

b := RTMondrianViewBuilder new.

b shape rectangle 

withBorder;

width: [ :cls | cls numberOfVariables * 5];

height: #numberOfMethods;

linearFillColor: #numberOfLinesOfCode within: RTObject withAllSubclasses.

b nodes: (Object withAllSubclasses copyFrom: 1 to: 3000).

b edgesFrom: #superclass.

b treeLayout.

b build.

^ b view

Nothing gets on the disk when you save :-(

this may be an issue with cairo rending on a (really) big surface.
I bet you won't be able to render that big images with morphic.

(morphic only renders/exports the visible part).

 

Jan B. sent me a morphic based exporter. 

Alexandre

-- 
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel  http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

On Nov 13, 2014, at 12:36 PM, Alexandre Bergel <[hidden email]> wrote:

Hi Doru!

I have reviewer & improved the PNG exporter. I have tried it in my different situation, it seems to work well.

I have taken the decision to __not__ render fixed trachel shapes. I think this is okay in most of the cases we will face. 

Let me know! 

Cheers,

Alexandre

-- 
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel  http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

On Nov 12, 2014, at 12:43 PM, Tudor Girba <[hidden email]> wrote:

Hi Alex,

Could you please review the code in RTPNGExporter? We still get a little problem when exporting because it seems that there is a bit of clipping happening on the bottom and to the right.

Cheers,

Doru

--

www.tudorgirba.com

"Every thing has its own flow"

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Am 14.11.2014 00:57 schrieb "Chris Cunningham" <[hidden email]>:
>
> Nah, morphic works. What you do is have it write to a canvas big enough to hold the drawing, then get the form under it, and then save that out.  So, something like this in the morph:
>
> asForm
> | canvas |
> canvas := FormCanvas extent: self extent.
> self drawOn: canvas.
> ^canvas contentsOfArea: bounds
>
> and write it out with:
>
> PNGReadWriter putForm: morph asForm onFileNamed: 'someFileName.png'
>
> I've used this with rediculously large diagrams before.
>
> -chris

Yes, pure morphic.

But rendering the above Diagramm in a morphic window and with Athens (and therefore Cairo)
only works, because it only renders the visible part.
If you have a display with >32k width or hight, you would suffer from the same Problem.

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Jan, I went through your exporter, and it seems to do an interesting job. I will be happy to include it in Roassal for others to have a look at it.

Alexandre

-- 
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel  http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

On Nov 14, 2014, at 1:03 AM, Jan B. <[hidden email]> wrote:

Well, it seems mine is unable to export large pictures too, just for
different reason: memory. Exported BMP for 7500*7500 px image has over 160
MB and Pharo's Windows VM memory limit is only 500 MB

Jan


abergel wrote

no no no :-(

It does not work for large pictures. Consider the following:


| b |
b := RTMondrianViewBuilder new.
b shape rectangle
withBorder;
width: [ :cls | cls numberOfVariables * 5];
height: #numberOfMethods;
linearFillColor: #numberOfLinesOfCode within: RTObject
withAllSubclasses.
b nodes: (Object withAllSubclasses copyFrom: 1 to: 3000).
b edgesFrom: #superclass.
b treeLayout.
b build.
^ b view

Nothing gets on the disk when you save :-(

Jan B. sent me a morphic based exporter.

Alexandre
--
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel  http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.


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http://www.mediafire.com/view/7bl4eg9qn3csici/DCTRCanvasExporter.st

-- 
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel  http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

On Nov 14, 2014, at 3:37 PM, Tudor Girba <[hidden email]> wrote:

Yes. Where is the code?

--

www.tudorgirba.com

"Every thing has its own flow"

On 14 Nov 2014, at 18:19, Alexandre Bergel <[hidden email]> wrote:

Anyone want to play with Jan’s exporter? I like the fact that you can select whether you want to have fixed shapes or not. 

Cheers,

Alexandre

-- 
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel  http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

On Nov 14, 2014, at 1:06 PM, Jan B. <[hidden email]> wrote:

Thanks, however, in my exporter is exactly same problem as in yours, just
where your stops creating files, my creates just white background.
Interesting thing is that sometimes when it is unable to export, I save and
quit Pharo, reopen and it exports fine. I would say something about memory
related something, but when I opened 500 windows, it did not stop working
because of that.
Plus my exporting via morph seems to have another limitation, which is 10000
px on width and height, anything beyond it gets cropped.
Anyway, here it is, just updated with scaling down when too large, few fixes
(like exporting canvas which is not open anywhere):
http://www.mediafire.com/view/7bl4eg9qn3csici/DCTRCanvasExporter.st

Jan


abergel wrote

Jan, I went through your exporter, and it seems to do an interesting job.
I will be happy to include it in Roassal for others to have a look at it.

Alexandre
--
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel  http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

On Nov 14, 2014, at 1:03 AM, Jan B. &lt;

bliznjan@.cvut

&gt; wrote:

Well, it seems mine is unable to export large pictures too, just for
different reason: memory. Exported BMP for 7500*7500 px image has over
160
MB and Pharo's Windows VM memory limit is only 500 MB

Jan


abergel wrote

no no no :-(

It does not work for large pictures. Consider the following:


| b |
b := RTMondrianViewBuilder new.
b shape rectangle
withBorder;
width: [ :cls | cls numberOfVariables * 5];
height: #numberOfMethods;
linearFillColor: #numberOfLinesOfCode within: RTObject
withAllSubclasses.
b nodes: (Object withAllSubclasses copyFrom: 1 to: 3000).
b edgesFrom: #superclass.
b treeLayout.
b build.
^ b view

Nothing gets on the disk when you save :-(

Jan B. sent me a morphic based exporter.

Alexandre
--
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel  http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.


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