Dmitrii, I'm glad to hear you would like to move forward with learning how to write a plug-in. I'm going to copy our message to the developers mailing list so that other subscribers might benefit. I think you'll find writing a plug-in isn't much harder than "hello world". :] Some programming skills will definitely help you in your pursuit of cartography, and OpenJUMP may become your favorite mapping program. :]
There are two things we need to do to get you started. Some of this you may have already done. I'm at work right now, so I don't have a lot of time to talk. But I will give you a few things now. The first thing you need to do is install the tools you will need to write and compile that Java code for the plug-in. Most OpenJUMP programmers use and IDE called Eclipse. (http://www.eclipse.org/) If you don't have a strong objection, I would use this tool to write the code for your plug-in. That will make it easier for us to work together. You could also use the IDE from Sun called Netbeans. (http://www.netbeans.org/) If you want something lightweight, you could try something like JEdit (http://www.jedit.org/) or Notepad++. (http://notepad-plus.sourceforge.net/uk/site.htm) You'll also need a working installation of OpenJUMP and a Java Development Kit. It wouldn't hurt to download OpenJUMP's source code and bookmark the Javadoc for OpenJUMP which is here: http://jump-pilot.sourceforge.net/javadoc/openjump_javadoc/ It sounds like we'll be working with JTS geometry objects for your plug-in, so you'll also want to download the source code for JTS. (JTS is the geometry library that OpenJUMP uses.) You can find links to this code and the Javadoc for JTS here: http://tsusiatsoftware.net/jts/main.html I use the Javadoc a lot when I am writing plug-ins. The second thing we need to do is understand a little better what you want your plug-in to do. It sounds like you want to simplify lineStrings based on a user entered radius. Is this correct? Will the user be selecting a single lineString for simplification, or will they be processing all of features in a layer? Let me know when you get your development environment set up as described above. Then answer the questions about what your plug-in will do, and how the user will interact with it. Then we can start writing some code. The Sunburned Surveyor 2009/2/25 Zmitser Kozhukh <zmits...@mail.ru>: > Hello! > Thank you very much for your will to help me. > Honestly I don't have big experience with programming. Like many of my > friends I was buying books about programming in Java, Python, C++ , but I > never went further than first couple of chapters ( like how to write > HelloWorld application, how to use certain functions, how to create some > simple procedures, how to use else if than operators). That is because it was > kinda meaningless (programming for the sake of programming) for me that time. > Now however, I started to study cartography at university so the programming > now can help to implement some of my ideas ( so now it isnt like programming > for the sake of programming, but very help tool for implementing ideas :) ). > So yeah I will be glad if you guide me through the process of writing this > plug-in and sure I will share it with everybody. > So how do we start? > > best regards, > Dmitrii > > -----Original Message----- > From: Sunburned Surveyor <sunburned.surve...@gmail.com> > To: Zmitser Kozhukh <zmits...@mail.ru>, JUMP Users Discussion > <jump-us...@lists.jump-project.org> > Date: Tue, 24 Feb 2009 07:07:42 -0800 > Subject: Re: [jump-users] question about scripting in JUMP > >> Dmitrii, >> >> I'm gald to hear that you are interested in learning more about >> customizing OpenJUMP. There are two ways to do what you want. You can >> write a beanshell script, or you can write a plug-in. >> >> Both require a limited knowledge of Java. Beanshell is probably the >> easiest way to go, but learning to write a plug-in will give you more >> opportunities to customize and extend OpenJUMP in the future. >> >> If you are willing to learn how to write a plug-in, then I can walk >> you through the process myself. (You can also get plenty of help from >> this mailing list.) I only ask that you share your code with others >> when we are done. :] >> >> How much Java do you know? Do you have any programming experience? >> >> Let me know what you think. If you are ready to write a plug-in for >> OpenJUMP, I'll post a message with what you need to get started. >> >> The Sunburned Surveyor >> >> P.S. - It sounds like you are trying to simplify (or remove nodes) >> from a linear feature. There may already be existing code in OpenJUMP >> that does this. Perhaps one of the other programmers will respond with >> a message to let us know. >> >> On Tue, Feb 24, 2009 at 1:59 AM, Zmitser Kozhukh <zmits...@mail.ru> wrote: >> > Hello! >> > I have just started to use JUMP and aquaint myself with programming. >> > So wanted to ask if someone can help me to write some simple script. For >> > example, I have some line with points. Than I want to select starting >> > point from this line, than to draw a circle with some fixed radius >> > centered at that point, than connect with straight line initial point and >> > point of intersection (between drawn circle and the line). Than do the >> > same thing , i.e. to draw circle around the point of intersection, connect >> > it with new intersection point and so on... >> > So anyone who knows how to script it please help. Or if someone knows some >> > helpfull resources about scripting in JUMP please let me know. >> > Thank you in advance! >> > Dmitrii >> > _______________________________________________ >> > jump-users mailing list >> > jump-us...@lists.jump-project.org >> > http://lists.refractions.net/mailman/listinfo/jump-users >> > >> > > ------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
