1. XYBlockRenderer help jfree.orgHi I'm using XYBlockRenderer with XYZDataset. I have about 15000 blocks in my table(150 Y's, 100 X's). I'll get data from a source that contains a single line of Y's that I append onto the next empty X column, if I reach the end, I wrap it around and start again. I'll add a new set of Y's to the graph ... |
2. XYBlockRenderer and Color Legend jfree.orgHello, I need to draw a color legend for my XYBlockChart. I mean like in XYBlockChartDemo3 with "OK", "Uncertain", "Bad" I am currently student so it's hard for me to buy the source code of the demo. I think there are 2 different charts, one for the data itself, and one other for the legend color put to SOUTH ? Or ... |
3. XYBlockRenderer and Color jfree.orgHi, I wants to use XYBlockRenderer to draw data stored in a matrix (mxn) and had problem with PaintScale and LookupPaintScale. I wants to use only one color which varies automatically according to my value Z. I excuse itself since I do not speak English well. Thank you for your answers, azaza21 |
4. XYBlockRenderer jfree.org |
5. XYBlockRenderer and Map !!!!!!! jfree.orgHi, I have a problem with XYBlockRenderer, I have to buy JFreeChart Developer Guide but I do not have to find solution. I have 500 value in X-coordinate and 10 value in Y ordinates, and my value Z varies between 0 to 100, which I a map wants to do which contain 500*10=5000 block coloured all with only one color which ... |
6. Faster XYBlockRenderer? jfree.orgI'm working with an XYPlot using an XYZDataSet and XYBlockRenderer to generate a surface plot (or contour chart, or intensity chart, we all seem to call them something different here). My XYZDataSet has one series that consists of about 118000 data points. The problem is that it takes about 10-15 seconds to actually draw the chart after I add the dataset ... |
7. Customizing XYBlockRenderer jfree.orgI would like to try and customize XYBlockRenderer so that I can increase performance of its painting operation specifically for my use. What I am working to create is a "waterfall" graph that will display the most recent data at the top of the y-axis and in a sense push all of the other data down a row (thus discarding the ... |
8. [Bug] XYBlockRenderer, calculation of block size? jfree.orgHi, shouldnt the following lines in XYBlockRenderer.drawItem Code: Select all double xx0 = domainAxis.valueToJava2D(x + this.xOffset, dataArea, plot.getDomainAxisEdge()); double yy0 = rangeAxis.valueToJava2D(y + this.yOffset, dataArea, ... |
9. XYBlockRenderer (JFreeChart1.0.9), block width and png jfree.orgXYBlockRenderer (JFreeChart1.0.9), block width and png by lhadden Fri May 23, 2008 7:31 pm I'm having trouble getting the block width of an XYBlockRenderer to change when I write my chart to png, despite calls to renderer.setBlockWidth(). Values of 1.0f, 100.0f, and 1000.0f produce identical results (as far as I can tell). I've tried to include the images, as requested ... |
10. Lines using XYBlockRenderer jfree.orgLines using XYBlockRenderer by kimba516 Wed Jun 04, 2008 7:50 pm Hello! I've created a spectral plot using XYBlockRenderer, but I think there's some default to have lines show up on the chart as markers to better locate points on the graph. It's a bit much though, so I was wondering is there was a way to turn these lines ... |
11. XYBlockRenderer & transparency: get rid of the grid? jfree.orgXYBlockRenderer & transparency: get rid of the grid? by delrieu Sat Jun 14, 2008 5:46 pm Dear All, I am using XYBlockRenderer in order to create heatmaps. JFreeChart is doing a fantastic job, as long as I am not using any transparency see: http://www.delrieu.org/temp/Heatmap_NoT ... Effect.png I would like to overlay those heatmaps onto another plot, so I have to ... |
12. Does XYBlockRenderer support tooltips? jfree.orgThe XYBlockRenderer of 1.0.13 should support entity creation and hence tooltips. The change log for the class states that entity collection code was added 07 Apr 2008. Since 1.0.9 was released earlier, that piece of code is probably missing. You could try to copy the drawItem-method from the current version to your version and recompile. |
13. XYBlockRenderer BlockHeight jfree.orgWhat you want is not possible with the XYBlockRenderer in its present form. I wonder why you need that? Maybe you could post an image that is showing what you have, and the you can describe what you want. The screenshot (with an apparent block height and block width of 1) does not seem to come from the snippet you have ... |
14. Improving Performance of XYBlockRenderer jfree.orgI have a 320x240 CSV file that holds temperature values for a grid of points. I've written an applet that graphs these points using an XYBlockRenderer in an XYPlot. I'm not using the deprecated ContourPlot class. Current rendering times are about 5 seconds on a modern machine and 20-30 on a five year old laptop when used from the site I ... |