World: r3wp
[View] discuss view related issues
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Graham 21-Sep-2006 [5566] | yes .. taken from a database |
Henrik 21-Sep-2006 [5567x2] | I'm not certain if you can do that... |
OO.o is capable of taking values from a database and put it in a document, but I'm not sure if those values can be transferred to a PDF form. | |
Graham 21-Sep-2006 [5569x3] | Starting with Rebol .. I can create a VID form using the scanned jpg as the background. |
I can overlay some VID text boxes over the form areas. | |
I can then save the completed form as a PNG and print it ... sort of .. | |
Henrik 21-Sep-2006 [5572x2] | yeah, there is something missing there... |
if we had the possibility of using bitmaps in postscript or pdf-maker, then you could solve it in rebol | |
Graham 21-Sep-2006 [5574x2] | pdf-maker doesn't support pdf forms yet. |
Gabriele doesn't have any current plans to do so either. | |
Henrik 21-Sep-2006 [5576] | that wouldn't be necessary if you used a VID app to fill out the form, right? |
Graham 21-Sep-2006 [5577] | so, VID => pdf using pdf-maker? |
Henrik 21-Sep-2006 [5578] | you could do that if pdf-maker supported bitmaps properly |
Graham 21-Sep-2006 [5579] | and it doesn't ?? |
Henrik 21-Sep-2006 [5580x2] | well I have not had any success with it |
and it only supports uncompressed bitmaps | |
Graham 21-Sep-2006 [5582x3] | Oh, an alternative idea then. |
Scan in as whatever .. turn it into an eps. | |
take the vid data and write it over the eps .... where you want the data ..and send to postscript printer. | |
Henrik 21-Sep-2006 [5585] | that might work |
Graham 21-Sep-2006 [5586x6] | Actually, what I am doing for infant growth charts is to take the pdf forms ... turn them into postscript ... add some growth data as postscript lines and then print them |
I guess I can do the same for electronic forms. | |
Yes, that's what I can do .. it's the same thing. | |
But the end users won't be able to do this ... | |
So, it would be good to find a solution suitable for an enduser. | |
So, the eps idea might be the better way to do it. | |
yeksoon 21-Sep-2006 [5592] | quick question about images. eg. == i1: load %image.jpg i2: i1 i2/size: 300x300 save/png %a.png i2 === why does the image comes out distorted? what is the correct way to 'resize' an image and save it in a different format? |
Henrik 21-Sep-2006 [5593x2] | i1: load %image.jpg save/png %a.png layout/tight [image 300x300 i1] |
unfortunately you can only do nearest neighbor scaling | |
yeksoon 21-Sep-2006 [5595] | layout/tight? is there such a refinement? |
Henrik 21-Sep-2006 [5596] | yes in rebol/view 1.3.x. not in 1.2.x |
yeksoon 21-Sep-2006 [5597] | I am on /view 1.3.x ....but have an error.. === ** Script Error: Invalid argument: type: face offset: 0x0 size: 300x300 span: none pane: [make object! [ type: 'face offs... ** Where: halt-view ** Near: save/png %a.png layout/tight [image 300x300 i1] == |
Henrik 21-Sep-2006 [5598] | thought it could do that directly, but then: save/png %a.png to image! layout/tight [image 300x300 i1] |
yeksoon 21-Sep-2006 [5599] | yes..that works! |
Henrik 21-Sep-2006 [5600] | but it eats memory. beware of that :-) |
Anton 21-Sep-2006 [5601x2] | original: %image.png ; INPUT FILE resized: %resized.png ; OUTPUT FILE new-size: 300x300 save/png resized draw make image! new-size compose [image (load original) 0x0 (new-size - 1x1)] ; examine results view layout [image (load original) image (load resized)] |
The above uses AGG scaling via the DRAW dialect. If you are converting many images, it should be faster than using LAYOUT all the time (and the code is shorter). | |
Gabriele 21-Sep-2006 [5603] | Henrik: PDF Maker 1 has been used extensively with images. And they'll be back in v2 very soon. The only drawback is lack of any compression, so the resulting PDF file is rather big (if the source image is big). |
Henrik 21-Sep-2006 [5604] | gabriele, that sounds good :-) |
Maxim 21-Sep-2006 [5605x3] | wow, where does the 'draw command come from !!! hehe am I the only one who didn't even know it was there? I guess its there since draw was added to view! |
is there a way to alter the sampling algorythms used in draw? | |
faster/better quality and up and down sizing all have optimised algorythms. There is no universal algorythm for resizing, not even the slower ones. Some have sweetspots in various conditions. | |
Gabriele 21-Sep-2006 [5608] | draw native has been added with AGG |
Henrik 22-Sep-2006 [5609] | I just miss being able to create proper thumbnails with draw AGG |
Gregg 22-Sep-2006 [5610] | Being able to save JPGs is my only outstanding image-related request, but I know that isn't likely to happen. |
Geomol 23-Sep-2006 [5611] | Gregg, why not? Is the code too large for Carl to include it, or is it something else? |
Graham 23-Sep-2006 [5612x2] | licensing ? |
http://www.extremetech.com/article2/0,3973,389261,00.asp | |
Henrik 23-Sep-2006 [5614x2] | graham, I think that was overthrown in 2004 |
http://www.groklaw.net/article.php?story=20060526105754880 | |
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