Re: [PHP] Basic question - PHP usage of SVG files [SOLVED]
At 1:14 PM +0900 11/24/07, Dave M G wrote: Larry, Thanks for your advice. With the XML editor available within PHP, I've made a small script that can extract the point data inside an SVG file, and store them as an array of points. That array can then be used to draw and fill shapes in a PNG image. And since they are stored as an array, I can do a little math on them to manipulate their scale and whatnot. The interpolation between points gets lost with this method, but in this case, I can get by with straight lines. Thanks for helping me to see the value in using PHP's XML functions. -- Dave M G Dave: If you want to smooth those points out, you can do it with a bezier or catmull spline. The code for catmull spline can be found here: http://brlcad.org/doxygen/d7/ddd/rt__dspline_8c-source.html I would love to see it translated into php. I have a copy of bezier code in C -- contact me off-list for a copy. Cheers, tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Basic question - PHP usage of SVG files [SOLVED]
Larry, Thanks for your advice. With the XML editor available within PHP, I've made a small script that can extract the point data inside an SVG file, and store them as an array of points. That array can then be used to draw and fill shapes in a PNG image. And since they are stored as an array, I can do a little math on them to manipulate their scale and whatnot. The interpolation between points gets lost with this method, but in this case, I can get by with straight lines. Thanks for helping me to see the value in using PHP's XML functions. -- Dave M G -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Basic question - PHP usage of SVG files　 [SOLVED]
Casey, There is no SVG support in PHP, as far as I know. Thank you. That clears things up. I'll just go with PNGs then. -- Dave M G -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Basic question - PHP usage of SVG files　[SOLVED]
On Wednesday 21 November 2007, Dave M G wrote: Casey, There is no SVG support in PHP, as far as I know. Thank you. That clears things up. I'll just go with PNGs then. I think you missed the point. SVG is just text. It's XML. You can manipulate it with SimpleXML or the DOM API functions just as you would any other XML file. It's been a while since I worked with SVG, but I believe you can resize an image just by changing an attribute or two. There's no need for SVG support per se, as SimpleXML provides all you need anyway. That's the advantage of XML. :-) -- Larry Garfield AIM: LOLG42 [EMAIL PROTECTED] ICQ: 6817012 If nature has made any one thing less susceptible than all others of exclusive property, it is the action of the thinking power called an idea, which an individual may exclusively possess as long as he keeps it to himself; but the moment it is divulged, it forces itself into the possession of every one, and the receiver cannot dispossess himself of it. -- Thomas Jefferson -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Basic question - PHP usage of SVG files
Larry, Thank you for responding. I think you missed the point. SVG is just text. ... There's no need for SVG support per se, as SimpleXML provides all you need anyway. I did miss the point - thanks for setting me straight. However, I'm still unsure about using SVGs. On the one hand, what I'm using as source files are originally in SVG format and I want to be able to dynamically resize and scale them without loss of clarity. But, after they have been resized and scaled, then I think I need to send the resulting image to the browser in some raster image format. Indications are that SVG support on browsers is still not as uniform as PNG or other raster graphics formats. At that last step, assuming that I have manipulated the images to my satisfaction with SimpleXML, can I then output the result in PNG or JPG with PHP? I'm not so sure this can be done. The tricky part is that I am building PHP scripts that could be deployed on servers with different PHP settings, so I'm not confident that I can rely on PEAR or ImageMagick functions being present. Are they standard on PHP 5? Forgive me if my questions are clueless to the point of making the questions unclear. -- Dave M G -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Basic question - PHP usage of SVG files
On Wednesday 21 November 2007, Dave M G wrote: Larry, Thank you for responding. I think you missed the point. SVG is just text. ... There's no need for SVG support per se, as SimpleXML provides all you need anyway. I did miss the point - thanks for setting me straight. However, I'm still unsure about using SVGs. On the one hand, what I'm using as source files are originally in SVG format and I want to be able to dynamically resize and scale them without loss of clarity. That sounds like an excellent reason to use SVG for your image manipulation. But, after they have been resized and scaled, then I think I need to send the resulting image to the browser in some raster image format. Indications are that SVG support on browsers is still not as uniform as PNG or other raster graphics formats. Yeah, Firefox is the only browser I know of with native SVG support worth a damn. Konqueror keeps talking about it but I don't know if it's any good yet. Not sure about Opera or Safari. IE requires a plugin from Adobe, which the last time I was playing with it (which has been a while, but there were no signs of plans to improve it at the time) was OK, but not great and embedded a la flash in a fixed, immutable box. At that last step, assuming that I have manipulated the images to my satisfaction with SimpleXML, can I then output the result in PNG or JPG with PHP? With native PHP, I don't believe so. However, I know that there are assorted command line tools and Java tools to do so. I naturally can't think of them off the top of my head, but I know they exist. You could exec() out to them to cache the rasterized combined image to disk and then serve that. I don't know off hand if there's a PECL module or some user-space PHP code to do that. It's worth spending 10 min Googling it, though. I'm not so sure this can be done. The tricky part is that I am building PHP scripts that could be deployed on servers with different PHP settings, so I'm not confident that I can rely on PEAR or ImageMagick functions being present. Are they standard on PHP 5? Now that could be a problem. You'd have to find either some PHP user-space library or a CLI C library that you could bundle with the app. I'm fairly certain nothing like that is in stock PHP 5. As for finding a good such library, as I said Google would know better than I. (Or maybe I should say Yahoo, since they use PHP. g) Forgive me if my questions are clueless to the point of making the questions unclear. They make a lot more sense now, actually. :-) -- Larry Garfield AIM: LOLG42 [EMAIL PROTECTED] ICQ: 6817012 If nature has made any one thing less susceptible than all others of exclusive property, it is the action of the thinking power called an idea, which an individual may exclusively possess as long as he keeps it to himself; but the moment it is divulged, it forces itself into the possession of every one, and the receiver cannot dispossess himself of it. -- Thomas Jefferson -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Basic question - PHP usage of SVG files
PHP list, I have some images that are in SVG format. What I want to do with them is manipulate them by resizing and overlaying one on top of the other. I do this frequently with PNG images, and I could first convert these images to PNG before manipulating them in PHP. However, I'd like to preserve line quality by keeping them as SVG until the last moment. I can't see on the online documentation if SVG is supported and if it requires different commands than raster image formats. What is the support for SVG in PHP, and where is the online documentation for it? Thank you for your help. -- Dave M G -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Basic question - PHP usage of SVG files
On Nov 20, 2007 7:24 PM, Dave M G [EMAIL PROTECTED] wrote: PHP list, I have some images that are in SVG format. What I want to do with them is manipulate them by resizing and overlaying one on top of the other. I do this frequently with PNG images, and I could first convert these images to PNG before manipulating them in PHP. However, I'd like to preserve line quality by keeping them as SVG until the last moment. I can't see on the online documentation if SVG is supported and if it requires different commands than raster image formats. What is the support for SVG in PHP, and where is the online documentation for it? Thank you for your help. -- Dave M G -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php There is no SVG support in PHP, as far as I know. However, since SVG's are XML's, you could extract the contents of svg in both files and merge them together. -Casey -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
