| | <<<Back 1 day (to 2011/08/12) | 2011/08/13 |
| Kunnis | I'm working with a pdf & a spot color, and I'm trying to understand some of the exact behaviors. I'm embedding an image, and I'd like to convert everywhere not transpartent to the spot color. | 06:15.02 |
| | the spot color is handled by our printing software to print out white (to get white on clear) | 06:15.47 |
| | I'm loosely following this doc to create the colorspace... http://groups.google.com/group/pdfnet-sdk/browse_thread/thread/4751660763bc6da2/34d0c6696c7349ec?show_docid=34d0c6696c7349ec&pli=1 I then create a new image in the pdf, using that colorspace | 06:24.18 |
| | though my color is CMYK 0,1,0,0 | 06:24.37 |
| | Anywhere that is not transparent, I want to have color in this layer. | 06:32.55 |
| | Here's the transform I'm using { dup 0 mul exch 1 exch dup 0 mul exch 0 mul } I'm just wondering how the image will deal with me applying the colorspace with it's transparency | 06:35.52 |
| | I'm kind of used to thinking of transparency as another color channel, pdfs don't really treat it that way. I'm just trying to learn. | 06:38.56 |
| | hello | 06:59.17 |
| kens | Hi robin_watts_mac still away on holiday ? | 09:06.23 |
| robin_watts_mac | morning henrys | 11:25.01 |
| henrys | hi robin_watts_mac how's Nam? | 11:27.55 |
| robin_watts_mac | hot. | 11:28.08 |
| henrys | your missing all the riots you could be home looting! | 11:30.16 |
| robin_watts_mac | unbearably so, and scheduled to get hotter, but hopefully less humid in days to come. | 11:30.22 |
| | Nah, all the good stuff would be gone by now. | 11:30.39 |
| | what time is it where you are? | 11:41.39 |
| henrys | 5:48 am | 11:48.21 |
| | just about to head out for my run | 11:48.28 |
| robin_watts_mac | crumbs. have fun. | 12:00.03 |
| alexcher | Kunnis: In PDF, image has its own color space unaffected by the colorspace in the graphic state. I don't know how your library specifies this. | 12:42.24 |
| Kunnis | alexcher I understand how to set the image's colorspace and I think I have it working, but I don't quite understand why. I set the image's colorspace using the transform... but what level is going to be in each channel? I just don't quite understand what I did. I was just following the directions and it worked. | 16:34.49 |
| | I've been looking at the PS documentation to try to understand what I've done, but I don't understand it yet. | 16:36.14 |
| | I understand that the domain & range functions force the input and outputs into the range of [0,1], I see why you do that. | 16:39.56 |
| | and the postscript function is for dealing with when it needs to render the colorent in the alternate colorspace | 16:42.48 |
| | but when I create an image and specify it's colorspace, how does it convert the 3 rgb or 4 cmyk channels into the spot color? | 16:45.05 |
| mvrhel2 | ok. testing a fix for some regressions I have managed to create. bbiab | 17:24.47 |
| | rats. seg faults. this should have been a simple fix | 17:49.37 |
| alexcher | Kunnis: PS or PDF never convert RGB or CMYK to a spot color. | 23:56.04 |
| | Kunnis: Tint transform function is used to convert the spot color values to RGB, CMYK, or Gray colors. | 23:57.11 |
| | Forward 1 day (to 2011/08/14)>>> | |
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