Unit developed in Delphi 10.4 with Firemonkey to create pie, donnut, bar and line charts without the use of third-party components.
Bar graph: remix from https://github.com/DelphiCreative/DashBoards
Line graph: remix from https://www.youtube.com/watch?v=0-k6HT07g88&t=1
Other graphics: own development.
Graphics are fully customizable. The values to be displayed must be passed in JSON-Array format.
Tip: For database integration I recommend using the "DataSetSerialize" module which makes it much easier to convert queries to JSON format: https://github.com/viniciussanchez/dataset-serialize
