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HighlightRegion[reg,roi]

highlights the specified region of interest roi in the geometric region reg.

HighlightRegion[reg,{roi1,roi2,…}]

highlights several regions of interest roii.

HighlightRegion[reg,{…,w[roii],…}]

highlights using a feature defined by the symbolic wrapper w.

Details and Options
Details and Options Details and Options
Examples  
Basic Examples  
Scope  
Specification  
Wrappers  
See Also
History
Cite this Page

HighlightRegion

HighlightRegion[reg,roi]

highlights the specified region of interest roi in the geometric region reg.

HighlightRegion[reg,{roi1,roi2,…}]

highlights several regions of interest roii.

HighlightRegion[reg,{…,w[roii],…}]

highlights using a feature defined by the symbolic wrapper w.

Details and Options

  • HighlightRegion[…] displays in a notebook as a plot of a region with embedding dimensions 1, 2 and 3.
  • HighlightRegion[reg,roi] returns a new geometric region with the overlapping region between reg and roi highlighted.
  • The following wrappers can be used:
  • Labeled[cell,…]display the element with labeling
    Style[cell,spec]show the element using the specified styles
  • HighlightRegion takes the same options as Region.
  • Styles and other specifications are taken to apply to the highlighted regions.

Examples

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Basic Examples  (4)

Highlight a point of a disk:

Wolfram Language code: HighlightRegion[Disk[{0, 0}, 1], Point[{0, 0}]]

Highlight a line of a disk:

Wolfram Language code: HighlightRegion[Disk[{0, 0}, 1], Line[{{-1 / 2, 0}, {1 / 2, 0}}]]

Highlight a sector of a disk:

Wolfram Language code: HighlightRegion[Disk[{0, 0}, 1], Disk[{0, 0}, 1, {Pi / 4, 3 Pi / 4}]]

Highlight several regions of a disk:

Wolfram Language code: HighlightRegion[Disk[{0, 0}, 1], {Point[{0, 1 / 2}], Line[{{-1 / 2, -1 / 2}, {1 / 2, 1 / 2}}]}]

Scope  (6)

Specification  (2)

HighlightRegion works with MeshRegion:

Wolfram Language code: ℛ = MeshRegion[{{0, 0}, {1, 0}, {1, 1}}, Polygon[{1, 2, 3}]];
Wolfram Language code: HighlightRegion[ℛ, Point[{(2/3), (1/3)}]]

BoundaryMeshRegion:

Wolfram Language code: ℛ = BoundaryMeshRegion[{{0, 0}, {1, 0}, {1, 1}}, Line[{1, 2, 3, 1}]];
Wolfram Language code: HighlightRegion[ℛ, Point[{(2/3), (1/3)}]]

HighlightRegion works on 2D regions:

Wolfram Language code: ℛ = Rectangle[];
Wolfram Language code: HighlightRegion[Rectangle[], Disk[{1 / 2, 1 / 2}, 1 / 2]]

3D regions:

Wolfram Language code: ℛ = Octahedron[];
Wolfram Language code: HighlightRegion[Octahedron[], Line[{{0, -(1/2 Sqrt[2]), (1/2 Sqrt[2])}, {(1/2 Sqrt[2]), 0, (1/2 Sqrt[2])}}]]

Wrappers  (4)

Use wrappers on a HighlightRegion:

Wolfram Language code: HighlightRegion[Disk[], Style[Point[{0, 0}], Red]]

Add interactive behavior with wrappers such as Tooltip:

Wolfram Language code: HighlightRegion[Disk[], Tooltip[Style[Point[{0, 0}], Red], "hello"]]

Any object can be used in the tooltip:

Wolfram Language code: HighlightRegion[Disk[], Tooltip[Style[Point[{0, 0}], Red], Plot[Sin[x], {x, 0, 2Pi}]]]

Use Button to trigger actions when clicking a Region:

Wolfram Language code: HighlightRegion[Disk[], Button[Style[Point[{0, 0}], Red], Speak["Disk"]]]

Use PopupWindow to provide information drilldown:

Wolfram Language code: HighlightRegion[Disk[], PopupWindow[Point[{0, 0}], DateListPlot[FinancialData["IBM", "Jan. 1, 2004"]]]]
Wolfram Research (2025), HighlightRegion, Wolfram Language function, https://reference.wolfram.com/language/ref/HighlightRegion.html.

Text

Wolfram Research (2025), HighlightRegion, Wolfram Language function, https://reference.wolfram.com/language/ref/HighlightRegion.html.

CMS

Wolfram Language. 2025. "HighlightRegion." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/HighlightRegion.html.

APA

Wolfram Language. (2025). HighlightRegion. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/HighlightRegion.html

BibTeX

@misc{reference.wolfram_2026_highlightregion, author="Wolfram Research", title="{HighlightRegion}", year="2025", howpublished="\url{https://reference.wolfram.com/language/ref/HighlightRegion.html}", note=[Accessed: 12-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_highlightregion, organization={Wolfram Research}, title={HighlightRegion}, year={2025}, url={https://reference.wolfram.com/language/ref/HighlightRegion.html}, note=[Accessed: 12-June-2026]}