Read selected data about each pixel within a rectangular region of this Viewport.
note The Pixel.Buffer supplied to the
receiver function becomes invalid once that function exits. Do not store a reference to it.
|rect||ViewRect||The area of the viewport's contents to read. The origin specifies the upper-left corner. Must lie entirely within the viewport's dimensions.|
|selector||Pixel.Selector||Specifies which aspect(s) of data to read.|
|receiver||Pixel.Receiver||A function accepting a Pixel.Buffer object from which the selected data can be retrieved, or receiving undefined if the viewport is not active, the rect is out of bounds, or some other error.|
|excludeNonLocatable||boolean||If true, geometry with the "non-locatable" flag set will not be drawn.|
Last Updated: 20 September, 2019