task « GanttChart « JFreeChart Q&A





1. gantt chart- line between tasks    jfree.org

2. Gantt Chart - Task with a Null duration.    jfree.org

I have created a Gantt chart and I draw to my panel, a series of Tasks (horizontal bar lines) all with set individual durations. However, there are some tasks that will not have a duration but I still wish to show it on the panel as another horizontal line entry. Is there any way of achieving this? - If I set ...

3. Gantt charts: labels not lining up with task bars (v1.0 rc1)    jfree.org

What I eventually discovered was that I was doing this wrong. I was using multiple TaskSeries objects for my data when it didn't actually make sense to do so. You should use multiple TaskSeries objects when you want to show different data for the SAME TASK. If you look at GanttDemo1, you'll notice that there are two TaskSeries objects used representing ...

4. Hyperlink to task on Gantt Chart    jfree.org

No, but it wouldn't be that hard to make it work, since the labels already support tooltips (so the entity mechanism that makes both tooltips and URLs work is already in place for the CategoryAxis class). The only missing piece is the mechanism to specify the URL for each category - this should mirror the addCategoryLabelToolTip() and removeCategoryLabelToolTip() methods. Then in ...

5. how to delete tasks from gantt chart    jfree.org

hello everyone, i'm having the following problem: i have a gantt chart with x axis that has the dates and y axis that has the tasks. whenever i press a button it's supposed to update the chart according to the info i want to filter.. the dates update fine but i never get to delete the tasks. so whenever i press ...

6. Zero length tasks in gantt chart    jfree.org

i actually just ran into this same problem as well. if the start date is 1/1/01 and end date is 1/2/01, it'll display a red bar. but if it's 1/1/01 to 1/1/01 it just displays a very thin black line that i could barely see. is it possible to have it display a bar for that as well?

9. Multi-line task names in Gantt charts    jfree.org

Does anybody know if it is possible to create a Gantt chart where the task name contains multiple lines of text? I've tried inserting newline characters, and they seem to be stripped out. What I'm getting at is that I would like to create a Gantt chart with the task name, and on the next line the assigned person. Any ideas? ...





10. Gantt tasks order    jfree.org

12. Gantt Chart - Explicitly Setting Task Label    jfree.org

Hi, I am creating a Gantt Chart. I create a task with some description. But while GanttRenderer renders the chart, i want to manipulate the task description and I want the chart to get created with the new Task description that i manipulate. I checked the GanttRenderer source. Its having the below code. So I tried to edit dataset.getColumnKey(column) value. but ...

13. Gantt Renderer - Sub Task Clarification    jfree.org

Hi, I am trying to understand GanttRenderer, how it renders the tasks and subtasks. drawTask() method creates the task and drawTasks() method of GanttRenderer creates all the subtasks for GanttChart. I am not able to get in drawTasks() method, how eack subtask is identified. Each subinterval is not a subtask. Then how is each subtask identified in the GanttChart. Please let ...

14. Gantt chart - multiple bars per task    jfree.org

Although this chart is relatively simple, there's no straightforward way to do it in JFreeChart. The two options probably worth looking at are: (1) A Gantt chart with subtasks; (2) An XYPlot with a SymbolAxis, and an XYBlockRenderer, and some ugly code to set the dataset up with the correct intervals to simulate bars. Option (3), to write a custom renderer, ...





17. Gantt Chart with expand for Sumarry Task    jfree.org

Hello, I'd like to add a funtion to display compound nodes of Summary Task (as JTree on Swing). This list of task have to be synchronized with the Task bar on the chart when we click on the expand image .... Do you have any ideas to realize it? Thanks a lot!!!!! Nhueanh

19. Gantt - the relationship between tasks    jfree.org

I tried to code it correctly, but I didn't have much time for looking into Jfree code and follow the coding rules. If any change is needed in the modifications, I may do it. This JFree library is a really great thing and if it comes that I may help in any way, just ask.

21. Inserting a label inside task at Gantt chart    jfree.org

Hi, Im new here so I looked for the forum and I didnt find a topic related, so, if somebody help me I will appreciate. Im using the JFreeChart to plot the Gantt chart but, I cant insert a label inside the task with the name of the task. Could somebody help me? Im using the constructor of the class Task ...

22. Gantt - Draggable Tasks problem    jfree.org

Gantt - Draggable Tasks problem A free public discussion forum for the JFreeChart class library. Post a reply 2 posts Page 1 of 1 Gantt - Draggable Tasks problem by MarkU Thu Mar 10, 2011 2:51 pm I am producing a Gantt chart with draggable Tasks using Vimals code as the start point (http://www.jfree.org/phpBB2/viewtopic.php?f=3&t=30569). However something odd is happening ...

23. JFree gantt task series    jfree.org

I want to display a gantt chart with a task series where there are many subtasks. I want taskseries to be in a colour and the rest of the white space in between the subtasks in other color. Is it possible? currently I completed using two taskseries but is there a simple way since it takes a lot of processing time ...

24. Gantt and multiple tasks    jfree.org

TaskSeries taskseries = new TaskSeries("Project 1"); Task t = new Task("First Person", new SimpleTimePeriod(date(1, 3, 2003), date(3, 3, 2003))); t.addSubtask(new Task("", new SimpleTimePeriod(date(7, 3, 2003), date(15, 3, 2003)))); t.addSubtask(new Task("", new SimpleTimePeriod(date(18, 3, 2003), date(25, 3, 2003)))); ...

25. (JFreeChart) GanttChart with labels on tasks in a GanttChart    forums.oracle.com

Hi everyone! This is my first topic here, hope i don't make a fool of myself asking this I try to create a Gantt Chart with JFreeChart, but with a twist on it: i need to display each individual task that i add to a TaskSeries with a different color (this i have already done by creating a custom renderer that ...