create real time multiline chart with dynamic data in ChartJs - chart.js

I want to create the real-time multiline chart using chart-js but do not get any solution on that, please if anyone know about this help me

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Dynamic format in aspose.cells generated excel

Is it possible to create a conditional format or something like that where the format is depending on the value of the cell?
For example when there is "#000000" as cell value, the background color of the cell should be black.
It is possible to have a condition on the cell value but I did not find any example where the format is dynamic. And it is no Option to create a format for each possible hex-color =)
Yes it is possible to add such a conditional formatting dynamically using Aspose.Cells. Please add your desired conditional formatting using the Worksheet.ConditionalFormattings collection. It will be better if you create your conditional formatting using Microsoft Excel and then load your workbook using Aspose.Cells and observe the properties of your conditional formatting object by exploring Worksheet.ConditionalFormattings collection and then create the same conditional formatting object through code. If you find any difficulty, then please feel free to post in Aspose.Cells forum on Aspose Website.
Please also see this article for your help in working with conditional formatting.
http://www.aspose.com/docs/display/cellsnet/Conditional+Formatting
Note: I am working as Developer Evangelist at Aspose

Advanced customization of google charts generated from a spreadsheet

I have my beautiful google bar chart that I generated just clicking in "insert chart" from google spreadsheet.
how can I modify it in an advanced way like writing code?
I have to insert a horizontal line in the bar chart that represent the productivity limit.
if I could do that without writing code would be better, but even writing code, I'd like to edit the chart generated by google spreadsheet, not start from scratches.
Tnx!
I solved the problem in this way.
I took the example forum google and i add the link that I got sharing my spreadsheet adding in the end of the link:
&sheet=PivotGiorni&range=A2:B
This set the sheet and the range.
Then the chart just work.
for adding the line I found this.
Thanks to you all! :D

copy specific columns from notepad++ to excel sheet

Can I use macros in notepad++ to select specific columns and paste these columns into specific cells in excel sheet automatically. If possible how?
Please help on this or any other suggestions may help in routine tasks with a lot of copy and pasted to be run automatically
EDIT: Added info on automation tools.
You don't need macros. Notepad++ has column mode which allows you to select text columns and copy it on clipboard which you then can paste in Excel. See here for a little video about how to do this: http://notepad-plus-plus.org/features/column-mode-editing.html
If you want to automate this process then you need automation tool that will record your keystrokes/mouse and other activities and replay whenever you need it. Below are some of the tools that does that and may fit your need:
Sikuli
AutoIt
AutoHotKey

Drawing line in sheet using PHPExcel

I am using PHPExcel (http://phpexcel.codeplex.com/) to generate Excel spreadsheet using PHP. Generally, this application can address what I need when working with PHP and spreadsheet, however when I try to draw line in the spreadsheet, I cannot find how to do it.
Normally I can do it in Excel application by doing Insert > Shapes and choose the line. But how to do it programatically using PHPExcel?
I need to do it since I have to plot point and connect them to make a straight line from one cell to another cell in spreadsheet (hence I cannot use Chart feature for this purpose).
Many thanks in advance for the answer.

How do I plot the output from a C++ Win32 console app?

I have a small Win32 console application which is essentially a test harness. I read data in, do some processing on it and currently just output some of the numbers to the console. This isn't a huge problem - I can get an idea of what the data looks like, but it would be much easier to analyse if there was a way of getting that information into a graph for each run of the software.
I've been getting to grips with GNUPlot recently, but can't work out a simple way to get the data sent to it. Has anyone tried this? ..or is there another graphing application I should try?
Excel and OO Calc are great tools and I've loaded .csv data into them for graphing data plenty of times myself. I was, however, hoping for a way to dynamically pipe data into a graphing application to avoid having to close/reopen excel and plot a graph each time I want to look at some data.
I think you can pipe data into GNUPlot (which is why I mentioned it) but the details of how to do so are rather scant.
A simple approach is to wtite the data out as CSV and then import it into a spreadsheet like Excel or OpenOffice to do the graph drawing.
Edit: Following your question, I got interested in GNUPlot myself - this is the simplest description of using it from the command line that I found: http://www.goldb.org/goldblog/CommentView,guid,f378e279-eaa5-4d85-b7d2-0339a7c72864.aspx
Never underestimate the power of Excel and a .csv data dump.
Writing data to a .csv file form C++ is not very difficult and there's lots of articles out there regarding the subject, for example: here, or just google.
Excel can easily load .csv's and then you can just use that to plot whatever graphs you require. THis is particularly useful if you just want a quick visual sanity check of results etc.
You don't really need to touch VBA to do this
In Excel you can set up a Data Connection to a file, it supports many files type but CSV does work fine.
Go to List item
Data Tab
Click Connections
Click Add
select the file
go to the connection properties - un-tick prompt for file name
set the required period.
close the connections dialog
select the start cell for importing the data - cell 1a on worksheet 2
click existing connections
select you data connection
flip to worksheet1 add your chart and hookup the data.
the chart will now update automatically
this is Excel 2007 - but think older version had this and I think OO can do it to.
You might also want to look into XMGrace which allows you to launch it and drive it dircetly from C/Fortran programs as shown here
Excel is completely script-able. Use the macro recorder to figure out the steps. Create the chart in its own sheet. Then save the chart using the GIF filter.
The actual import is something like:
ActiveChart.Export FileName:=something_dot_gif, FilterName:="GIF"
I just found an example of piping data into gnuplot on Cardiff University's website. Not tried it yet, but it looks promising!
[edit] ..and another which includes some notes for windows.
You can use MathGL - it can create a window (FLTK, GLUT or Qt) and display plot inside. Also it have large set of plot types and can work in console.