Image rendering on browser or temporary images?

Posted by Muralha on Stack Overflow See other posts from Stack Overflow or by Muralha
Published on 2010-03-30T16:26:08Z Indexed on 2010/03/30 17:23 UTC
Read the original article Hit count: 332

Filed under:

ruby-on-rails

|

gruff

|

charts

|

images

I'm trying to make a statistics page where it will show several data and charts.
The charts need to be pictures so that the user can save it/drag-and-drop to his/her personal reports.

I'm using Gruff Graphs for Ruby to produce the charts but I don't know the best way to display the results safe and protected.

Some of my ideas/tries are:

save the chart to a file (jpg, png)? problem: data is available to anyone (don't have access to cron, to delete data from time to time)
render in the browser (has to work on IE)?
Use javascript (Raphaël—JavaScript Library) or Google API and output a PDF report (need plugin or gem, right)?
use send_data? i've tried to output other way than inline, because I needs to show other data, is it possible?

Thanks for any help.

© Stack Overflow or respective owner

Related posts about ruby-on-rails

Ruby on Rails - How can I start? [closed]

as seen on Programmers - Search for 'Programmers'
I have misconception in understanding the relationship between Ruby language and Ruby on Rails Framework. Because of 'I am an absolute beginner' in web development I have no idea if I have to grasp the fundamentals of Ruby before I go with Ruby on Rails! I also want to ask who is behind both Ruby… >>> More
DES3 decryption in Ruby on Rails

as seen on Stack Overflow - Search for 'Stack Overflow'
My RoR server receives a string, that was encrypted in C++ application using des3 with base64 encoding The cipher object is created so: cipher = OpenSSL::Cipher::Cipher::new("des3") cipher.key = key_str cipher.iv = iv_str key_str and iv_str: are string representations of key and initialization… >>> More
Ruby on rails: Image downloads with Authentication/Authorization/Time outs

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi Guys, I'm having few doubts on implementing file downloads. I'm creating an app where I use attachment_fu with Amazon s3 to upload files. Things are working pretty well so far on uploading side. Now its the time to start the file downloads. Here is what I need, a logged in user search and browse… >>> More
Ruby on Rails deployment, on "thin" server with lot of attachments

as seen on Stack Overflow - Search for 'Stack Overflow'
A lot of PDFs are stored inside MySQL as a BLOB field for each PDF file. The average file size is 500K each. The Rails app will stream the :binary data as file downloads, where there is a user click on the download link. Assume there is a maximum of 5 users downloading 5 PDFs concurrently, what… >>> More
Apply Behavior Driven Development to Ruby on Rails with Rspec

as seen on Internet.com - Search for 'Internet.com'
Applying the Behavior Driven Development (BDD) methodology to your Rails development takes you beyond traditional Test Driven Development. Learn how to do it with the Ruby-based BDD framework RSpec. >>> More

Related posts about gruff

Gruff: Draw a line

as seen on Stack Overflow - Search for 'Stack Overflow'
I have two arrays: x = x coordinates and y = y coordinates. I want to use gruff to create a line based on the x and y coordinates. How can I do that? >>> More
Image rendering on browser or temporary images?

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to make a statistics page where it will show several data and charts. The charts need to be pictures so that the user can save it/drag-and-drop to his/her personal reports. I'm using Gruff Graphs for Ruby to produce the charts but I don't know the best way to display the results safe and… >>> More
(Rails) Creating multi-dimensional hashes/arrays from a data set...?

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi All, I'm having a bit of an issue wrapping my head around something. I'm currently using a hacked version of Gruff in order to accommodate "Scatter Plots". That said, the data is entered in the form of: g.data("Person1",[12,32,34,55,23],[323,43,23,43,22]) ...where the first item is the ENTITY… >>> More
rails test.log is always empty

as seen on Stack Overflow - Search for 'Stack Overflow'
All the log entries generated when running tests with 'rake' are written to my development.log instead of test.log file Do I have to explicitly enable logging for test in enviornments/test.config?? (I'm using 'turn' gem to format test output, Can that cause an issue?) I'm running rails 2.3.5, ruby… >>> More
train wreck. Rails requires RubyGems >= 1.3.2

as seen on Stack Overflow - Search for 'Stack Overflow'
I recently upgraded ruby to ruby 1.8.7 (2009-06-12 patchlevel 174) [i686-darwin10] and I think I broke rails. When I attempt to load rails. I get an odd message. Please help! $ ruby script/server Rails requires RubyGems = 1.3.2. Please install RubyGems and try again: http://rubygems.rubyforge.org $… >>> More