THPDFChartRenderOptions Record

Caps and switches applied while drawing a chart: series, point, and label budgets, accessibility limits, and title, axes, and grid visibility

Declaration

THPDFChartRenderOptions= record
  MaxSeries: Integer;
  MaxPointsPerSeries: Integer;
  MaxTotalPoints: Integer;
  MaxLabels: Integer;
  AccessiblePointLimit: Integer;
  MaxAccessibleTextBytes: Integer;
  ShowTitle: boolean;
  ShowAxes: boolean;
  ShowGrid: boolean;
  class function Default: THPDFChartRenderOptions; static;
end;

Unit

HPDFDoc

Fields

Field	Purpose
`MaxSeries`	Maximum number of series drawn; default `64`
`MaxPointsPerSeries`	Maximum plotted points per series; default `100000`
`MaxTotalPoints`	Maximum plotted points across all series; default `1000000`
`MaxLabels`	Maximum data labels drawn; further labels are skipped and `THPDFChartRenderStatistics.LabelsTruncated` is set; default `512`
`AccessiblePointLimit`	Maximum points exposed as individual tagged (accessible) structures; default `64`
`MaxAccessibleTextBytes`	Byte budget for accessible alternate text; default `8192`
`ShowTitle` / `ShowAxes` / `ShowGrid`	Visibility toggles for the chart title, axes, and grid lines; all default to `True`
`Default`	Class function returning the values listed above

Usage notes

Start from THPDFChartRenderOptions.Default and tighten budgets for low-memory or untagged output instead of filling the record by hand
Pass it to the THPDFPage.DrawChart overload that also returns THPDFChartRenderStatistics to see which caps actually bit
The extended overload accepts a StructureParent dictionary when the chart must attach to an existing tagged-structure tree

THPDFChartRenderOptions Record

Declaration

Unit

Fields

Usage notes

Related APIs