chmAddOverview | R Documentation |
Generate an overview image of the NGCHM when making it. By default, the system generates no default overview images. If only one of width or height is specified, the other is calculated based on the aspect ratio of the map.
chmAddOverview(chm, format, width, height) ## S4 method for signature 'ngchm,character,optNumeric,optNumeric' chmAddOverview(chm, format, width, height)
chm |
The chm to add the overview to. |
format |
The format of the overview ('pdf', 'png', or 'svg'). |
width |
The width of the overview. |
height |
The height of the overview. |
The extended chm.
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