quickchart-pascal
Chart image and QR code web API
- Quiet · last change 4-19-2022
- ★ 1 on GitHub
README
quickchart-pascal
A pascal client for the QuickChart.io chart API using OOP (Object-Oriented Programming) and (Functional Programming) In Delphi.
QuickChart is a service that generates images of charts from a URL. Because these charts are simple images, they are very easy to embed in non-dynamic environments such as email, SMS, chat rooms, and so on.
Official github
Installation
- Delphi
- Boss
Lib dependencies
- System.JSON
- System.Generics.Collections
⚡️ Usage - Quickstart
//...
uses
QuickChart;
procedure TForm1.button1Click(Sender: TObject);
const
JSON_TEXT ='{'
+' "type":"bar",'
+' "data":{'
+' "labels":["January","February","March","April","May"],'
+' "datasets":['
+' {'
+' "label":"Dogs",'
+' "data":[50,60,70,180,190]'
+' },'
+' {'
+' "label":"Cats",'
+' "data":[100,200,300,400,500'
+' ]'
+' }'
+' ]'
+' }'
+'}';
begin
TQuickChart
.New
.SetWidth(500)
.SetHeight(300)
.SetDevicePixelRatio(2.0)
.SetBackgroundColor('transparent')
.SetFormat('png')
.SetEncoding('url')
.SetVersion('2.9.4')
.SetChart( JSON_TEXT ) //<----- JsonText
.Download( 'QuickChart.png' )
.Free;
end;
end.Using Object DTO
//...
uses
QuickChart, QuickChart.Chart, QuickChart.Types;
procedure TForm1.button1Click(Sender: TObject);
var
LChartDTO: TQuickChartDTO;
begin
LChartDTO := TQuickChartDTO.New;
LChartDTO
.Data
.LabelNew(['January','February','March','April','May'])
.DatasetAdd( TDatasetDTO
.New
.SetLabel('Dogs')
.DataNew( [50, 60, 70, 180, 190] )
)
.DatasetAdd( TDatasetDTO
.New
.SetLabel('Cats')
.DataNew( [100, 200, 300, 400, 500] )
);
TQuickChart
.New
.SetWidth(500)
.SetHeight(300)
.SetDevicePixelRatio(2.0)
.SetBackgroundColor('transparent')
.SetFormat('png')
.SetEncoding('url')
.SetVersion('2.9.4')
.SetChart( LChartDTO ) //<----- ObjectDTO
.Download( 'QuickChart.png' )
.Free;
LChartDTO.Free;
end;
end.Screenshots Samples
 |
 |
 |
📝 Doc API
For more details on configuring your chart, reference the QuickChart documentation.
- https://quickchart.io/documentation/
- https://quickchart.io/gallery/
- https://quickchart.io/chart-maker/
Tools
- https://jsonformatter.curiousconcept.com/
- https://jsonformatter.org/json-pretty-print
- https://github.com/HashLoad/boss
👨💻👩💻 Contributing
If you wish to contribute to this website, please:
- Fork it on GitHub JTheiller/quickchart-pascal/Fork
- Push your change to a named branch, then send a pull request
- If it is a big feature, you might want to start an issue JTheiller/quickchart-pascal/Issue, first to make sure it's something that will be accepted.
⚠️ License
The source code for the site is licensed under the MIT license, which you can find in the LICENSE file.
Copyright (c) 2022 Joathan Theiller