Andrew, wow, thanks again, Im dying to see this working! I changed the
path per your instructions but cant seem to get the page to render
properly. I have it in the root dir of my web server but if I open a
browser and point to that file it comes up as a white page. If I view the
source I see it exactly as the page is saved, its like it didnt execute the
html code just loaded the page. Does that make sense? If I point to my
index.html file that works fine.
Im using IIS on Windows 7 to serve the page. Anything special I need to
turn on?
On Monday, July 28, 2014 4:48:17 PM UTC-7, Andrew Gallant wrote:
>
> Storing the CSV file inside your web directory makes this much easier, as
> this allows you to use AJAX to fetch the data directly instead of writing
> some server-sude code to get the CSV. The jQuery library provides a handy
> shortcut for writing AJAX:
>
> $.ajax({
> url: '/path/to/data.csv', // this is the path in your web directory,
> not your system directory
> dataType: 'text',
> success: function (csv) {
> // code to draw chart
> }
> });
>
> I attached an HTML file that ties all of this together.
>
> On Sunday, July 27, 2014 2:01:35 PM UTC-4, 66spl...@gmail.com wrote:
>>
>> Wow, thank you so much Andrew. I would have never figured that parsing
>> out...
>>
>> Either one of those examples to turn stuff on or off would work. The
>> site is going to be only accessed by me so it doesnt have to be super sexy.
>>
>> The csv file is hosted on the machine that is running the webserver. I
>> can store its location anywhere including the root dir of the website.
>> Hopefully that makes it a bit easier.
>> Thanks again for all your help on this!
>>
>>
>> On Sunday, July 27, 2014 6:23:30 AM UTC-7, Andrew Gallant wrote:
>>>
>>> For turning on and off the lines, would either of these work for you?
>>>
>>> http://jsfiddle.net/asgallant/WaUu2/
>>> http://jsfiddle.net/asgallant/6gz2Q/
>>>
>>> If you can't change the format of the CSV, then you'll have to manually
>>> parse it, but your structure is simple enough that this shouldn't present a
>>> problem. Once it is loaded in the browser, this should suffice to
>>> transform it into a DataTable for the charts:
>>>
>>> function csvToDataTable (csv) {
>>> // split the csv on line breaks
>>> var csvRows = csv.split(/\r{0,1}\n/g);
>>> var rawData = [], row, match, year, month, day, hours, minutes,
>>> seconds;
>>> for (var i = 0; i < csvRows.length; i++) {
>>> row = csvRows[i].split(',');
>>> if (i != 0) {
>>> // assumes dates are in the format "MM/dd/yyyy HH:mm:ss"
>>> match = row[0].match(/(\d{2})\/(\d{2})\/(\d{4})
>>> (\d{2}):(\d{2}):(\d{2})/);
>>> year = parseInt(match[3], 10);
>>> month = parseInt(match[1], 10) - 1; // convert to
>>> javascript's zero-indexed months
>>> day = parseInt(match[2], 10);
>>> hours = parseInt(match[4], 10);
>>> minutes = parseInt(match[5], 10);
>>> seconds = parseInt(match[6], 10);
>>> row[0] = new Date(year, month, day, hours, minutes, seconds);
>>> for (var j = 1; j < row.length; j++) {
>>> // convert the strings to numbers
>>> // change to parseFloat if your numbers can be floats
>>> row[j] = parseInt(row[j]);
>>> }
>>> }
>>> rawData.push(row);
>>> }
>>> return google.visualization.arrayToDataTable(rawData);
>>> }
>>>
>>> Loading the data might be a bit tricky; is this going to be hosted on
>>> your local PC or on a website? Do you have the choice of where the CSV
>>> gets stored?
>>>
>>> On Saturday, July 26, 2014 2:40:51 PM UTC-4, 66spl...@gmail.com wrote:
>>>>
>>>> Well Im certainly willing to try. I've looked a bunch of examples but
>>>> just cant seem to get my data loaded,at least if I include the date field.
>>>> I manually put a ' ' around date and that worked except I have no control
>>>> over the format of the csv to actually include those ' '
>>>>
>>>> But sure, lets give this a shot.
>>>>
>>>> By turning off / isolate values I have 10 temperatures, I'd like to be
>>>> able to display just one or two of them or all 10. Having 10 lines gets a
>>>> bit messy, plus this might grow to more in the future.
>>>>
>>>> Both of those zooms are brilliant. I was checking out the google
>>>> example when I was researching this the last couple weeks, thats exactly
>>>> what I was envisioning.
>>>>
>>>> Thanks for offering to help out!
>>>>
>>>>
>>>> On Friday, July 25, 2014 6:36:49 PM UTC-7, Andrew Gallant wrote:
>>>>>
>>>>> This is probably easy to do, and if you're feeling adventurous, we can
>>>>> help you save a bit of cash and do this yourself.
>>>>>
>>>>> A few key questions:'
>>>>>
>>>>> What do you mean by "turn off / isolate certain values"?
>>>>>
>>>>> Would something like this
>>>>> <https://developers.google.com/chart/interactive/docs/gallery/controls#chartrangefilter>
>>>>> or
>>>>> this <http://jsfiddle.net/asgallant/fgM4V/> work for you to zoom your
>>>>> data?
>>>>>
>>>>> On Friday, July 25, 2014 2:26:08 PM UTC-4, 66spl...@gmail.com wrote:
>>>>>>
>>>>>> I have a few bucks to pay someone to write a fairly basic chart for
>>>>>> me. I have a csv file on the local machine that will be serving the
>>>>>> chart
>>>>>> web page. The file is updated every few minutes recording temperature
>>>>>> values and a time stamp. All the chart needs to do is load the data and
>>>>>> display it. I would like the ability to turn off / isolate certain
>>>>>> values
>>>>>> and also zoom into a section of the chart.
>>>>>> Every couple months the data is reset so the max is going to be 3
>>>>>> months of data. Here is what the .csv looks like.
>>>>>>
>>>>>> Time,Temp1,Temp2,Temp3,Temp4,Temp5,Temp6,Temp7,Temp8,Temp9,Temp10
>>>>>> 03/03/2014 00:26:37,52,77,79,66,63,66,86,72,66,57
>>>>>> 03/03/2014 00:27:37,52,78,80,66,63,66,87,72,67,57
>>>>>> 03/03/2014 00:28:38,52,79,84,67,64,69,86,72,68,52
>>>>>> 03/03/2014 00:29:39,52,77,88,68,66,76,83,72,68,51
>>>>>>
>>>>>>
>>>>>>
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