Basic Shapes

Heptagon

"shape": "heptagon" draws PowerPoint's heptagon preset. The PPTX export writes it as a native shape with its adjust values, so it stays editable in PowerPoint.

Search words: seven, sides, polygon

Frame

A shape block takes the largest frame of 1:1 (width to height) that fits its cell, centered; set aspectRatio for another. Text inside is fitted to the preset's text rectangle and never set below the readability floor.

Adjust Values

Name	Default	Range
hf	1.02572	unbounded to unbounded
vf	1.0521	unbounded to unbounded

OPF units: fractions (most often of the shorter side) and degrees, for example "adjust": { "hf": 1.02572 }.

OPF Config

{
  "$schema": "https://openpresentation.org/schema/opf/v1",
  "name": "PPTX.gallery — shapes/heptagon",
  "description": "The heptagon preset as an OPF shape block.",
  "slides": [
    {
      "title": "Heptagon",
      "blocks": [
        {
          "shape": "heptagon",
          "text": "Heptagon"
        }
      ]
    }
  ]
}

Frame

Adjust Values

OPF Config

More Basic Shapes