arrow_back Back to freelances
F

Update Chart Component for History Overview

Freelancer

Share:
placeVN home_workRemote assignmentContract publicAggregated job · VN

eventPublished on Sep 17, 2026 · verifiedWe confirmed on Sep 17, 2026 that it's still live

Is this your business?

US$ 2 – US$ 8 per project

About the job

I need a developer to update an existing chart component that displays a “Full History Overview.” Currently, the overview graph displays all historical data points at once. I want users to control how many points are visible.

Requirements

* Add a setting called “Maximum visible points.” * Allow the user to enter or select the number of points displayed at one time. * The default setting must continue to show the full history. * If a limit is configured, display only that number of points within the visible graph area. * Add a horizontal scrollbar or slider so the user can navigate through the complete history. * The main chart and overview/window-position controls must remain synchronized. * Preserve the existing chart design, tooltips, peak/low indicators, colors, and responsive behavior. * Validate the setting: only positive whole numbers should be accepted. * If the configured limit exceeds the available data, show all available points. * Save the selected setting so it remains after refreshing or reopening the application. * The implementation must work smoothly with large datasets. Deliverables: * Updated source code * Responsive and working chart behavior * No regression in existing chart features * Short explanation of the changes * Testing instructions Please mention which chart library or component you have experience with and provide an estimated delivery time.

Keep reading for free

Create a free account to see the full job and apply.

  • badgePortfolio visible to companies
  • notificationsNew job alert by email
  • favoriteAlways free, no catch