Tuesday, February 8, 2011, 12:10 PM - Computer, Linux, PostScript, LaTeX
I was looking for the best way to convert pixelbased images to .eps fileformat to use them in my documents created with LaTeX. The problem was that the eps-files where always very big (from 40kB jpg to 4MB eps).
At first I found jpeg2ps which produces eps files in eps version 2 or 3.
Beginning with the second version of PostScript (PS) the PS-Interpreter can render jpeg-images which are contained in ps-files.
So the easiest way I found was to use 'convert' which should be available on the most GNU/Linux Systems.
convert test.jpg eps3:test.epsnote the 'eps3:' at the beginning of the output file.
This produces eps-files which are just minimal bigger the the original jpg-file.
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Thursday, August 26, 2010, 06:11 PM - Common Lisp
I used CL-JSON to implement an JSON-REST-Server (but in fact I've stolen most of the Code from my dad - thank you very much) for the Dojo JsonRestStore and it converts the CLOS-Objects pretty good to Json-Objects and the other way round.
IDEA: Use CL-JSON as an easy Objectpersistence Tool.
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Tuesday, July 20, 2010, 08:53 AM - HTML, JavaScript
I wrote this small script to convert all buttons in a HTML-table into text.
var inputs = $$("input");
console.log("Before: " + inputs.length)
for(i = 0; i<inputs.length; i++)
{
try{
if(inputs.getAttribute("type") == "hidden"){
inputs.parentNode.removeChild(inputs);
}
}catch(e){
console.log(e);
}
}
inputs = $$("input");
console.log("Afterwards: " + inputs.length)
for(i = 0; i<inputs.length; i++)
{
try{
inputs.parentNode.innerHTML = inputs.getAttribute("value");
}
catch(e){
console.log(e);
}
}
http://getfirebug.com/
http://getfirefox.com
EDIT:
I made two mistakes within the markup the '<' was interpreted as an beginning HTML-tag, so it messed up the Javascript Code.
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Wednesday, May 7, 2008, 09:57 PM - Computer, Linux
Today I need this article about SpeedStep with Linux from the Intel site (I mentiond it already on my NX7000 Notebook site).
This is an really great source:
http://softwarecommunity.intel.com/arti ... g/1611.htm
I often need the commands to force my CPU to go down to 600MHz because sometimes my laptop is running without a reason with 1600MHz which makes my fan running all the time and that is really annoying.
By the way, my laptop died yesterday - I'm currently using my dad's laptop wich is the same model as mine so I had just switch the harddrive to bring up my system again.
When I was in University yesterday I started my laptop and the display flared - I thought it is flaring because I made a suspend to disk before (sometimes the display shows curious output for one or two seconds if I'm booting my computer after a powersave -U). So I removed the battery and restarted the machine but there happend just nothing - no display, no harddrive access ... NOTHING.
So I gave the laptop to the repair center of electronic market and now I hope that they can repair this defect.
Good Night (in Germany)
Martin
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Wednesday, March 26, 2008, 07:01 PM - Web
I validated my sites on martin-enders.de today with the W3C HTML and CSS validator. I was surprised of the amount of mistakes I made while writing HTML and CSS. There haven't been too much and if there were more then two or three mistakes they have been systematically and easy to correct.
I have some sites which are difficult to integrate in my current layout because there would be a lot of CSS conflicts. This sites are not validated until now.
The next step is to correct the bad HTML of this blog. For example the most styles are assigned with the ID HTML-attribute.
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Thursday, February 28, 2008, 09:54 PM - Computer, Common Lisp, Web Framework
I fetched up the idea of the CL-Webframework mentiond three postst before. I tried to implement an prototype in PHP because this server is a virtual machine and I have some problems to install SBCL.
But the Problem was that I have to deal quite fast with technical restrictions of PHP. That means that I have to think to much about the language itself and if you are a programming-rookie like me it's not so easy to keep track of all these language restrictions. In this way for me it is easier to write in lisp.
I have a little bit expirience with Edmund Weitz' hunchentoot HTTP-Server and I think I can do it easyer with such an setup.
I hope I'll can work a little bit on this small project the next time.
PS:
My concept of the Framework is not much more like the dispatcher of hunchentoot but I like some more functions which are more specific to web publishing which makes content-providing more flexible and easier to use.
I think the way I'd like to go is to provide an more abstract layer for the dispatcher of hunchentoot which maps the ideas and concepts of Publishing Documents in the Web to an Server.
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Tuesday, February 5, 2008, 09:15 PM - Linux, shell scripts
Today I made a little shell script to create the text-logos like the 'fancy text' image in this entry.
convert -fill 'rgb(128,128,128)' -background transparent -font FONT.TTF -pointsize 50 label:"EXAMPLE TEXT" -rotate 90 OUTPUT_FILE
-fill Color in rgb notation
-background Background color (here transparent background)
-font ttf-file (I think you can also use a system font).
-pointsize size of the text
-label:"" Text which appears in the image
-rotate Rotate the image
-OUTPUT_FILE filename of the output file
(here png because I use a transparent background)
Source: http://imagemagick.org/script/command-line-tools.php
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Sunday, February 3, 2008, 02:25 PM - Blog
The most of the previous entries are rated with 3 and have 5 ratings.
I think thats because a search engine was crawling over this blog and opend every rating link.
I hope that the following robots.txt can fix this problem:
User-agent: *
Disallow: rate_cgi.php
PS: In the first moment I was wondering if there has been somebody on my blog and rated articles
.
It seems that the robots.txt is not working. Maybe there is a conflict with the following meta-tags:
<!-- Robots -->
<meta name="robots" content="ALL,INDEX,FOLLOW,ARCHIVE" />
<meta name="revisit-after" content="7 days" />
I decided to deactivate the rating functionality.
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Saturday, February 2, 2008, 11:41 PM - Common Lisp, Web Framework
The idea behind this framework ist that all sites are made of any number of content blocks which belong to an URL.
So the content blocks are mapped to an URL
(URL (Content-I Content-II))
An Example:
Content Block I
-------
| abc |
-------
Content Block II
-------
| def |
-------
Block I and II are bound to serverrelativ URL
/content
(:/content ("Content Block I" "Content Block II"))
http://www.martin-enders.de/content leads to a page like this:
/-page----------\ | | | ------- | | | abc | | | ------- | | ------- | | | def | | | ------- | |_ _ _ _ _ _ _ _|
Idea
The idea behind this framework is that you can map differnt content blocks to an url.
Problems / Questions
How should sites be treated when you use special functionality. Is in content blocks just HTMl allowed or should it be possible to integrate lisp into the pages?
The content Blocks are integrated in an layout so the HTML in the content block is just a part between the <body> and </body> tag. If you need an extra css file you have to be enabled to integrate an special tag to integrate additional information into the HTML head.
But all these workarounds lead to inconsistencies in the framework - it seems that it's not a good design now.
Conceptual Lisp Dispatcher:
(defvar *dispatch*)
(setf *dispatch* '(:/ ("index")
:/web ("web")
:/css ("css2" "css3")))
(defun get-content(content-block)
content-block)
(defun render-content(content)
(format t "~a" content))
(defun dispatcher(script-name)
"This function takes a string as argument
and converts it into an keyword for
comparison with the url's in *dispatch*"
(let* ((request (intern (string-upcase script-name) "KEYWORD"))
(content (getf *dispatch* request)))
(dolist (content-block content)
(render-content (get-content content-block)))
request))
Conclusion
I'd like to have a small consistent framework for publishing in the web. But the current state of this idea has to many inconsistences.
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Friday, February 1, 2008, 12:32 AM - Web, Blog
Currently I'm at work to provide my site a new (better) home. The server is working so far (apache2 and php) but e.g. mail isn't configured.
I'd like to convert the static pages of this blog to html-pages and publish them under www.martin-enders.de - because they don't need any dynamically created content so there is no reason to manage them with a blog system.
From here to the future this blog has a new home at blog.martin-enders.de.
The former blog at mitglied.lycos.de/oberweissenbach/blog is no longer active.
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