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.
- Delphi
- Boss
- System.JSON
- System.Generics.Collections
//...uses
QuickChart;
procedureTForm1.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.//...uses
QuickChart, QuickChart.Chart, QuickChart.Types;
procedureTForm1.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. |  |  |
For more details on configuring your chart, reference the QuickChart documentation.
- https://quickchart.io/documentation/
- https://quickchart.io/gallery/
- https://quickchart.io/chart-maker/
- https://jsonformatter.curiousconcept.com/
- https://jsonformatter.org/json-pretty-print
- https://github.com/HashLoad/boss
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.
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