I'm trying to run this example about how to use Flask-Admin displaying maps: https://github.com/flask-admin/flask-admin/tree/master/examples/geo_alchemy.
In README.rst, there's this instruction:
You will notice that the maps are not rendered. To see them, you will have to register for a free account at Mapbox and set the MAPBOX_MAP_ID and MAPBOX_ACCESS_TOKEN config variables accordingly.
I already have a valid MAPBOX_ACCESS_TOKEN, and I went to MapBox to look for a MAPBOX_MAP_ID. There I read that MAP_ID was deprecated, and now I'll have to obtain a tileset ID, and it's described as a label composed by <my_mapbox_user_name>.the_tileset_ID itself.
So I located the code as they described in the instructions (in my case, mapbox-streets-v8) and fulfilled the config.py parameters:
MAPBOX_MAP_ID = '<my_mapbox_user_name>.mapbox-streets-v8'
MAPBOX_ACCESS_TOKEN = 'pk.eyJ1...'
However, I couldn't see any map displayed or any error message.
How can I fix it?
I think there is a small bug in file Lib\site-packages\flask_admin\static\admin\js\form.js. The original URL generated to get a tile is:
https://api.mapbox.com/styles/v1/mapbox/<MAPBOX_MAP_ID parameter>/tiles/12/2258/2457?access_token=<MAPBOX_ACCESS_TOKEN parameter>
However, the correct one is:
https://api.mapbox.com/styles/v1/<MAPBOX_MAP_ID parameter>/tiles/12/2258/2457?access_token=<MAPBOX_ACCESS_TOKEN parameter>
That is, I had to remove the mapbox word from the URL.
To do that I made some changes in form.js file:
//var mapboxUrl = 'https://api.mapbox.com/styles/v1/mapbox/'+window.MAPBOX_MAP_ID+'/tiles/{z}/{x}/{y}?access_token='+window.MAPBOX_ACCESS_TOKEN
var mapboxUrl = 'https://api.mapbox.com/styles/v1/'+window.MAPBOX_MAP_ID+'/tiles/{z}/{x}/{y}?access_token='+window.MAPBOX_ACCESS_TOKEN
Then, it's working now:
I am very new to syncfusion controls for mvc. While exploring how to set dynamic datasource to grid, I came across this line of javascript code which I cannot understand. I have been through the javascript api docs for ej grid but couldn't find the meaning.
var obj = $("#Grid").ejGrid("instance");
If someone can explain the meaning and point out some reference documentation, I will be highly grateful.
The example I came across
https://help.syncfusion.com/aspnetmvc/grid/how-to
The javascript api I have been through
https://help.syncfusion.com/api/js/ejgrid#members:datasource
P.s: I know from a comment I came across that this has something to do with current instance of ej grid but I would like a solid understanding via a reference so I can understand.
From my little experience with Syncfusion controls the documentation explaining how to perform tasks is not well stated. If you have a license you can ask questions in their forum but I can tell you what little I learned perusing their forum.
In their JS 1 version
var obj = $("#Grid").ejGrid("instance");
and in their JS 2 version
var obj = document.getElementById('Grid').ej2_instances[0];
The variable obj appears to get an object reference to the grid identified by the id Grid. I am not sure what the instance value refers to other than the examples in the documentation show it and it works when it is used.
Not sure if I was much help.
In the Below code example Grid – Grid ID and you can take the Grid instance using the above code example. From the instance you can get the details regarding the column, dataSource, filterSettings, sortSettings etc currently applied to ejGrid. We have given support to customize the Grid using several public method. You can call those method by taking the Grid instance.
#(Html.EJ().Grid<EJGrid.Models.Order>("Grid")
.Datasource((IEnumerable<object>)ViewBag.datasource)
.AllowPaging()
.Columns(col =>
{ col.Field("OrderID").HeaderText("Order ID").TextAlign(TextAlign.Right).Width(75).Add();
col.Field("EmployeeID").HeaderText("Employee ID").TextAlign(TextAlign.Right).Width(90).Add();
col.Field("Freight").HeaderText("Freight").Format("{0:c}").TextAlign(TextAlign.Right).Width(90).Add();
col.Field("ShipCity").HeaderText("Ship City").Width(90).Add();
col.Field("Child.Test").HeaderText("TEst").Format("{0:c}").Width(90).Add();
col.Field("ShipCountry").HeaderText("Ship Country").Width(90).Add();
})
)
<script>
var obj = $("#Grid").ejGrid("instance");
var value = $("#colValue").val();
//Add custom parameter to the server
var query = new ej.Query().addParams("EmployeeID", value);
//Creating ejDataManager with UrlAdaptor
var dataManager = ej.DataManager({ url: "/Home/GetData", adaptor: new ej.UrlAdaptor() });
var promise = dataManager.executeQuery(query); promise.done(function (e) {
//Assign the result to the grid dataSource using "dataSource" method.
obj.dataSource(e.result);
</script>
To update the Grid, you can use dataSource() method. To call that method you need to take the Grid instance and call that method.
Refer the below API documentation for your reference
https://help.syncfusion.com/api/js/ejgrid#methods:datasource - used to update the Grid dataSource dynamically
https://help.syncfusion.com/api/js/ejgrid#members:datasource - returns the Grid dataSource.
Please get back to us if you have further queries.
I'm trying to build a simple dashboard app using google apps script to pull data from a google spreadsheet and then display that data visually using charts on the dashboard.
I've managed to carry out those initial steps but am having problems trying to group the data to prevent multiple slices in the pie chart being assigned to the same task. In the below source spreadsheet you'll see numerous entries of the "Support" task (column E) linked to different Clients (column B). What I need is to group the data based on the "Task" column (E) so the time entries recorded in column G (Hours) are totaled and displayed accordingly (i.e. one segment of the pie chart for each task regardless of client).
I've searched the Apps Script Documentation and have essentially got lost in the noise and can't find any definitive way of doing this directly in Apps Script. I've found some info about potentially using Google Visualization to achieve something similar but am struggling with how to implement as there is so much conflicting documentation out there.
Essentially I'm asking is this possible within Apps Script directly without 1st Querying the Data and producing another sheet (as a basis for the chart) or if not then what the most straightforward and/or best approach would be?
Data Source:
https://docs.google.com/spreadsheets/d/1Gvqe89ytJxrKWOvGJWX5heYwrj5L-MP_Pe2jpTqqB5o/edit?usp=sharing
Current App displays the below:
Apps Script Code:
function doGet() {
var ss = SpreadsheetApp.openById('1Gvqe89ytJxrKWOvGJWX5heYwrj5L-MP_Pe2jpTqqB5o');
var data = ss.getDataRange();
var taskFilter = Charts.newCategoryFilter().setFilterColumnIndex(4).build();
var clientFilter = Charts.newStringFilter().setFilterColumnIndex(1).build();
var tableChart = Charts.newTableChart()
.setDataViewDefinition(Charts.newDataViewDefinition().setColumns([1,2,4,6]))
.build();
var pieChart = Charts.newPieChart()
.setDataViewDefinition(Charts.newDataViewDefinition().setColumns([4,6]))
.build();
var dashboard = Charts.newDashboardPanel().setDataTable(data)
.bind([taskFilter, clientFilter], [tableChart, pieChart])
.build();
var app = UiApp.createApplication();
var filterPanel = app.createVerticalPanel();
var chartPanel = app.createHorizontalPanel();
filterPanel.add(taskFilter).add(clientFilter).setSpacing(10);
chartPanel.add(tableChart).add(pieChart).setSpacing(10);
dashboard.add(app.createVerticalPanel().add(filterPanel).add(chartPanel));
app.add(dashboard);
return app;
}
I am trying to use Google charts to embed images of charts in the emails. So Each user will have a unique graph.
Can we use the API and embed a unique URL that will render the Charts and deliver an Image to the email Client.
You can get a PNG version of your chart using chart.getImageURI() like following:
Needs to be after the chart is drawn, so in the ready event!
var my_div = document.getElementById('my_div');
var my_chart = new google.visualization.ChartType(chart_div);
google.visualization.events.addListener(my_chart, 'ready', function () {
my_div.innerHTML = '<img src="' + chart.getImageURI() + '">';
});
my_chart.draw(data);
It is possible to generate a url that will render an image of a chart using the Google Chart Wizard. However, that service recently (April I believe) because deprecated. It still works fine, but for a long term solution, you may have to come up with another method.
Edit
Another method would be to generate the image and save it to your server before sending the email. You can do this by having a page on your server dedicated to generating the chart by parsing a given slug, and when the chart is loaded send a POST request with the image data. You can access the data URI by using a hidden canvas (HTML5 is required) and the canvg javascript plugin:
chart_area = document.getElementById("chart_div").getElementsByTagName('iframe')[0].contentDocument.getElementById("chartArea");
svg = chart_area.innerHTML;
canvas = document.getElementById("hidden_canvas");
canvas.setAttribute('width', chart_area.offsetWidth);
canvas.setAttribute('height', chart_area.offsetHeight);
canvg(canvas, svg);
image_data_uri = canvas.toDataURL("image/png");
I had the same issue not so long ago and found out your question on SA. ince Google Image Charts is deprecated since 2012, I built https://image-charts.com to be a replacement of Google Image Charts in order to embed charts and graphs into emails (right click on the images bellow and checkout the URL):
https://image-charts.com/chart?chs=700x300&chxt=x,y&chl=2018|2017|2015&chd=t:60,40,20&cht=pa&chdl=Image|Charts|Rocks&chf=ps0-0,lg,45,ffeb3b,0.2,f443367C,1|ps0-1,lg,45,8bc34a,0.2,0096887C,1|ps0-2,lg,45,EA469E,0.2,03A9F47C,1&chan
https://image-charts.com/chart?cht=lc&chs=700x300&chd=t:10,25,30,40,12,48,100,20,47,29,84,30,27,50,70&chxt=x,y&chxl=0:|Jun|Jul|Aug|Sep|Oct|Nov|Dec|Jan|1:||50|100&chm=B,FCECF4,0,0,0&chco=E4061C&chdl=Coffee consumed&chma=0,0,20,10&chl=||||||such a very big project!
https://image-charts.com/chart?chs=700x300&cht=gv&chl=digraph {a -> b[label="0.2",weight="0.2"];a -> c[label="0.4",weight="0.4"];c -> b[label="0.6",weight="0.6"];c -> e[label="0.6",weight="0.6"];e -> e[label="0.1",weight="0.1"];e -> b[label="0.7",weight="0.7"];}
A little late to the party, but we just built https://ChartURL.com for this exact need because despite this question being almost 3.5 years old, the best solution out there until ChartURL was the deprecated Google Image Charts API :)
Hope this helps someone out!
To render Google Charts as an image, you can use Google Charts Node, an open-source project that uses Puppeteer to render the charts.
google-charts-node is available as an NPM library and can be used like so:
const GoogleChartsNode = require('google-charts-node');
function drawChart() {
const data = google.visualization.arrayToDataTable([
['City', '2010 Population',],
['New York City, NY', 8175000],
['Los Angeles, CA', 3792000],
['Chicago, IL', 2695000],
['Houston, TX', 2099000],
['Philadelphia, PA', 1526000]
]);
const options = {
title: 'Population of Largest U.S. Cities',
chartArea: {width: '50%'},
hAxis: {
title: 'Total Population',
minValue: 0
},
vAxis: {
title: 'City'
}
};
const chart = new google.visualization.BarChart(container);
chart.draw(data, options);
}
// Render the chart to image
const image = await GoogleChartsNode.render(drawChart);
Now you can save the image buffer as a file or return it as an HTTP response, etc. It looks like this:
The Google Charts node renderer is also available as a web service, as described here, so you can use it in any language besides JS.
If you're interested in using a more universal open-source chart format, you can also use QuickChart, a Chart.js render API.
I am using smart gwt 2.5 List grid.
In this I am using check box for simple selection.below is the code for that:
getGrid().setSelectionAppearance(SelectionAppearance.CHECKBOX);
getGrid().setSelectionType(SelectionStyle.SIMPLE);
I am using data source for the list grid.For feeding data calling this method:
public void setTestData(DataClass[] testData) {
setAttribute("testData", testData, true);
}
My grid is rendering data properly.Now I want to set checked some of records (Row) depending in some condition.Lets say I want row number 1 and 5 should be checked.
For this after feeding data to data source I write code like below to check data:
getGrid().selectRecord(1);`
getGrid().selectRecord(5);
But is not doing any checked operations to check box.I am not getting at what point I am doing mistake.
same thing when I tried with out data source and I feed data to list grid simply by setdata It was working.
Please help me out.Thanks in advance
When you use a DataSource, including a clientOnly DataSource, fetching data is asynchronous, so your selectRecord() calls are happening when data is not loaded yet. Wait for DataArrived before attempting to select records.
One work around which is working for me is that:
I removed selection appearance and selected type from my grid and took a column for check box
like below:
NTListGridField customCheckBoxField = new NTListGridField("select", "Select", 25);
customCheckBoxField.setAlign(Alignment.LEFT);
customCheckBoxField.setType(ListGridFieldType.BOOLEAN);
customCheckBoxField.setCanFilter(false);
customCheckBoxField.setCanEdit(true);
customCheckBoxField.setCanToggle(true);
Now for selecting records,
record.setAttribute("select", true);