Develop Reference

I'm trying to get a chart from my spreadsheet to send in an email using google script, but the getAs() function isn't working

Whenever I've looked into how to email a chart, all the answers involve some variation on using the getAs function to save the chart as an image and then either inlining it or attaching it to the email. But I'm struggling to save the chart as an image in order to attach it. When I run the following code:
var chart = demandLastWeekSheet.getCharts().getAs("image/png");
I get this error:
TypeError: demandLastWeekSheet.getCharts(...).getAs is not a function (line 8, file "Code")
In fact, I get the same error if I try .getBlob(), .modify() or any other functions from here: https://developers.google.com/apps-script/reference/spreadsheet/embedded-chart.html
Surely these functions have not been deprecated? Am I doing something wrong/stupid? New to the world of apps script, any pointers welcome! Sorry also if this is a badly phrased question, also I am new to stack overflow :)
Any suggestions??

getCharts() returns EmbeddedChart[]. In your script, the method of getAs is used for an array. I think that this is the reason of your issue. In order to retrieve the blob of the chart using the method of getAs, please modify as follows.
From:
var chart = demandLastWeekSheet.getCharts().getAs("image/png");
To:
var chart = demandLastWeekSheet.getCharts()[0].getAs("image/png");
In this modification, the 1st chart in the sheet of demandLastWeekSheet is retrieved. If you want to retrieve the 2nd chart, please modify from [0] to [1].
Reference:
getCharts()

d3plus not load data from csv

my code:
function d3_chart() {
// sample data array
// instantiate d3plus
var visualization = d3plus.viz()
.container("#viz") // container DIV to hold the visualization
.data("./extra/acc.csv", {"filetype": "csv"}) // data to use with the visualization
.type("line") // visualization type
.y("x") // key to use for y-axis
.x("timestamp") // key to use for x-axis
.draw() // finally, draw the visualization!
}
my csv:
timestamp,x,y,z
0,2019-02-28 12:20:19.631,1.072,-0.153,10.113
1,2019-02-28 12:20:19.731,1.072,-0.153,10.419
2,2019-02-28 12:20:19.831,1.072,-0.153,9.96
3,2019-02-28 12:20:19.931,1.072,-0.153,10.113
4,2019-02-28 12:20:20.031,1.072,-0.153,10.113
5,2019-02-28 12:20:20.132,1.225,-0.153,9.96
6,2019-02-28 12:20:20.231,1.225,-0.153,9.96
7,2019-02-28 12:20:20.331,1.225,-0.153,9.96
8,2019-02-28 12:20:20.431,0.919,-0.306,9.5
9,2019-02-28 12:20:20.531,0.919,0.459,9.807
10,2019-02-28 12:20:20.631,1.225,0.153,10.113
11,2019-02-28 12:20:20.731,1.379,-1.992,10.113
12,2019-02-28 12:20:20.831,1.838,-0.306,9.653
13,2019-02-28 12:20:20.931,0.153,0.766,10.113
14,2019-02-28 12:20:21.032,0.459,1.532,10.266
15,2019-02-28 12:20:21.133,1.072,0.0,9.96
I just got getting message:
No Data Available
What is wrong? I don't find any example in internet with csv loading via this library
Or something know how graph chart from csv via general D3 with simple example?

d3plus seems to be using v3.5.15 of d3.js. Regardless of that, you will need to tell d3plus of how to load the data. Reading the API documentation it seems you will have to load the data using
d3plus.dataLoad(path, [formatter], [key], [callback]) as explained here.
Alternatively, you can use d3.js to parse your csv file and pass it as the data. To do this you can use the
d3.csv.parse(string[, accessor]) as provided in the d3.js CSV API.
Keep in mind in both cases you will need to format your timestamps in the correct time format (For d3.js Time Format API doc), for you to be able to use the time scales. Also at least for d3.js when the data is parsed from CSV all values are string values and hence you will need to change the type of the values using an type conversion function. You can read more about this in a great guide on how to read data by Learnjsdata (d3.js v3, or d3.js v5)
There are several examples out there for d3.js v3 on importing the data for processing which may be a better option overall. Also consider d3plus has not got a github commit in over a year so the library may not be well supported.
I hope this helps and at least gives you a start. If you need more help please leave a comment below.

Pie Chart does not work with Json Data using AngularJS and nvd3

Problem,
I want to display the pie chart using the dynamic data from API but it does not work at all. Where as if i have a hard coded data it works perfectly fine.
I have created a Plunker
<nvd3-pie-chart
data="exampleDataPieChart"
id="toolTipExample2"
x="xFunction()"
y="yFunction()"
width="150"
tooltips="true">
</nvd3-pie-chart>
http://plnkr.co/edit/Ve9X22X7RAuRGpA74tiB?p=preview
I am using github API and want to draw the pie chart for the languages used in the user repository
Please have a look and let me know where i am doing wrong
Thanks

Plunkr
2 things: your JSON format doesn't match exampleDataPieChart, as well as AngularJS doesn't know when to run $scope.$apply() internally.
Fix #1: Match the formats
var exampleDataPieChart = [{"key":"One","y":5},{"key":"Two","y":2},{"key":"Seven","y":9}]
vs.
var collectedData = [{"key":["JavaScript","CSS"],"y":[142531,205009]}]
Fix #2: Let AngularJS know you've updated data by creating a local var data then once its' ready, trigger $scope.$apply() by running $scope.collectedData = data.

Highcharts wrapper similar to Google visualization chartwrapper

In Google visualization ChartWrapper class, the code to draw a chart (bar chart, pie chart, etc) is as follows:
wrapper = new google.visualization.ChartWrapper({
dataTable: dataTable.toJSON(),
chartType: chartType,
options: options
});
console.log("Wrapper: " + wrapper.toJSON());
console.log(" ");
wrapper.draw(result[0]);
I am curious if there's an equivalent way of doing this using Highcharts where instead of calling new google.visualization.chartWrapper(...), we can just call something like new highcharts.chartWrapper(...). The options can include the container div id where the chart will be drawn.
Even if there is no way to do, any suggestions how I should be go about doing something similar to this?
As far as I know, in dataTable I can specify my data series in JSON format. In chartType, I can specify bar, column, pie, etc. Based on the highcharts example I saw, I can even write a service that generates a HTML file on the server side as shown here -> http://jsfiddle.net/gh/get/jquery/1.9.1/highslide-software/highcharts.com/tree/master/samples/highcharts/demo/column-basic/ and send back a response.
But what I don't know is how do I tell Highcharts to insert the chart right at container id specified in my options on the same page.
In this example, for instance, wrapper is just a json representation of the chart (which I can generate). What I am not sure is how do I convert that json representation to a highcharts map that gets inserted where I want on the same page.
Sorry, if this question seems complicated. I can clarify if you need additional information.

JavaScript error when using Highcharts

I am having a weird problem that I hope you can help me with.
I have Highcharts running on a dev website -- I use a simple form to allow the user to enter data.
On the same page, a Highchart shows once data is entered.
The data entry form has very simple jQuery-based snippets, eg. form validation, a counter for max number of characters, etc.
What happens is that when there is chart data in the database, the chart plots correctly, and the remaining JS snippets work as expected wen you try to enter new datapoints.
But if there is no data in the database (therefore no Highchart is shown), all my JS snippets stop working.
On Firebug console, I get this error when there is no data to form a chart:
jb is null
function n(m,h){kc=ya(a.title,m);tc=ya...play:""});Aa.body.appendChild(Qb)}Tc=
highcharts.js (line 47)
On Chrome, a different error shows as
Uncaught TypeError: Cannot set property 'innerHTML' of null
d.d.extend._Deferred.f.resolveWith jquery.min.js:16
d.d.extend.ready jquery.min.js:16
d.c.addEventListener.A
Again, these errors disappear as soon as I enter the first data point and a chart is formed.
Does anyone know what is happening and how I can get my JS to work when a Highchart is empty?
Any pointers are much appreciated. Thanks!

For me the problem was that I wasn't including jQuery before including HighCharts.
<script src="http://code.highcharts.com/highcharts.js"></script>
<script src="http://code.highcharts.com/highcharts-more.js"></script>
<script src="http://code.highcharts.com/modules/exporting.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
Threw the errors:
Uncaught TypeError: Cannot read property 'addEvent' of undefined(anonymous function) # highcharts.js:313(anonymous function) # highcharts.js:315(anonymous function) # highcharts.js:331
Uncaught TypeError: n.getOptions is not a function(anonymous function) # highcharts-more.js:8(anonymous function) # highcharts-more.js:55
Uncaught TypeError: Cannot read property 'fireEvent' of undefined(anonymous function) # exporting.js:9(anonymous function) # exporting.js:24
But if I included jQuery first it didn't.

I had this problem. I had to surround the highChart creation code with document.ready
$(document).ready({
chart = new Highcharts.Chart({ //my cool chart
});
});

OK, this error popped up again and that's because my comment above did not really solve it.
Here's the culprit: if you have a model that generates data for charts happen to return an empty array (say it's a new user and she hasn't added any data yet to the database), this empty array is passed to the controller -- which will then pass the empty array to the view with Highcharts.
When passing an empty array to my view containing Highcharts, Highcharts would run but would not find an element to inject the chart, because I also had a condition in the view that removed #container if there was no data.
Without where to put the chart, Highcharts returns an innerHTML error, that may or may not break your remaining javascript (my case).
The solution here had nothing to do with JS, but actually with putting a condition in my controller which would be in pseudo code:
if model that generates chart data returns empty array
don't generate view containing Highcharts
else
generate view containing Highcharts
Doing this not only I prevented the error for good but also reduced the overhead of running Highcharts when no data is present.