Scruffy question

ruby-talk
1

Hi

installed scruffy...and put the code below in my controller.

def show_img
    graph = Scruffy::Graph.new
    graph.title = "Comparative Agent Performance"
    graph.value_formatter =
Scruffy::Formatters::Percentage.new(:precision => 0)

    graph.add :stacked do |stacked|
      stacked.add :bar, 'remco', [30, 60, 49, 29, 100, 120]
      stacked.add :bar, 'peter', [120, 240, 0, 100, 140, 20]
      stacked.add :bar, 'femmie', [10, 10, 90, 20, 40, 10]
    end

    graph.point_markers = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun']

    send_data(graph.render(:width => 800, :as => 'PNG'), :type =>
'image/png', :disposition=> 'inline')
  end

In the view a placed...

<img src="<%= url_for(:action => 'show_img') %>"/>

But with no succes..

In the generated HTML i get

<img src="/users/show_img"/>

What i am doing wrong???

remco

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2

I'm not familiar with what you are doing, but I'm pretty sure you need to save the file in a public directory. Save that path as a variable which you can use in the view.

And on a side note, url_for(:action) just builds the relative path for the page show_img creates. url_for is for building relative links to other controllers and actions. These paths are not real paths in your public directory, they are virtual paths rails builds for you when you request them.

The rails list would be your best bet for more in depth help.

Jake

···

On Nov 5, 2007, at 5:50 AM, Remco Swoany wrote:

Hi

installed scruffy...and put the code below in my controller.

def show_img
   graph = Scruffy::Graph.new
   graph.title = "Comparative Agent Performance"
   graph.value_formatter =
Scruffy::Formatters::Percentage.new(:precision => 0)

   graph.add :stacked do |stacked|
     stacked.add :bar, 'remco', [30, 60, 49, 29, 100, 120]
     stacked.add :bar, 'peter', [120, 240, 0, 100, 140, 20]
     stacked.add :bar, 'femmie', [10, 10, 90, 20, 40, 10]
   end

   graph.point_markers = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun']

   send_data(graph.render(:width => 800, :as => 'PNG'), :type =>
'image/png', :disposition=> 'inline')
end

In the view a placed...

<img src="<%= url_for(:action => 'show_img') %>"/>

But with no succes..

In the generated HTML i get

<img src="/users/show_img"/>

What i am doing wrong???

remco
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3

Hi,

I have tested with :
send_data(graph.render(:width => 800, :as => 'PNG', :to =>
"#{RAILS_ROOT}" + "/public/images/test.png"), :type =>'image/png',
:disposition => 'inline')

instead of :
send_data(graph.render(:width => 800, :as => 'PNG'), :type =>
'image/png', :disposition=> 'inline')

But i have the same problem :
app/controllers/supports_controller.rb:88: syntax error, unexpected
tSTRING_BEG, expecting $end
end',gfd :disposition=> 'inline')
    ^

I can't understand !!!

Who can help me to use Scruffy with RoR ?

Got

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4

Hi,

Finally, I'm trying to test Scruffy in my 'application_helper.rb' :

def render_scruffy_graph
    graph = Scruffy::Graph.new
    graph.title = "Comparative Agent Performance"
    graph.value_formatter =
Scruffy::Formatters::Percentage.new(:precision => 0)
    graph.add :stacked do |stacked|
      stacked.add :bar, 'remco', [30, 60, 49, 29, 100, 120]
      stacked.add :bar, 'peter', [120, 240, 0, 100, 140, 20]
      stacked.add :bar, 'femmie', [10, 10, 90, 20, 40, 10]
    end
    graph.point_markers = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun']
    graph.render(:width => 800, :as => 'PNG')
end

with :
<%= render_scruffy_graph %> #in my 'show.rhtml' file

But the image is returned as blob/string.

So I've got something like that :

ϟ?�իW�k�.,[� ~��g��GD���VkD� AdM`` Ə�~��B�V�M{��M���[ؿ���&��j� �'OFŊ�n��u��5����RŊÍeסR��5k4T���S�xN!��ᨔ�(=�����W_aʔ?���… c��}(V��Ŷ� cǎU��D� q 9�ڵk�ܹ�8p@���(]:۷oC�޽�.:I`ժ�زe3ʕ+�tQ1h�@��a��T* 4P�9g����0aF��t8�|��Ve�p����GD�өR� ��� OOO�I]"�/_�U�V����x��9���P�\9����7y��1�m޼>��۠,���n�Eܸqŋa�̟��C� �ܹseʔ�(���xV�G�... D�-��7ߠd�����hT�P>T:,��[�n� �ׯ��ѣrHHH@\\��E$�\� r*���8s� ��J�nݺ�=z����6�)S�46oނ%�.�n޼��+rLH��e �Z�–-���=B��ep��5,X�жm;�ܹS�b*J�Hj ��aL�cǎŏ?��tX����Qpss��)S�o�Q�HDDP Hz!.ΰ|��(S�#44-[������s�� t{�5��Ӡ�R�

How can I show my picture ?
Thx
Got

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