readImage Method
Read the current image from this viewport from the rendering system. If a view rectangle outside the actual view is specified, the entire view is captured.
readImage(rect: ViewRect = new ViewRect(0, 0, -1, -1), targetSize: Point2d = Point2d.createZero(), flipVertically: boolean = false): ImageBuffer | undefined
note By default the image is returned with the coordinate (0,0) referring to the bottom-most pixel. Pass true for flipVertically to flip it along the x-axis.
| Parameter | Type | Description |
|---|---|---|
| rect | ViewRect | The area of the view to read. The origin of a viewRect must specify the upper left corner. |
| targetSize | Point2d | The size of the image to be returned. The size can be larger or smaller than the original view. |
| flipVertically | boolean | If true, the image is flipped along the x-axis. |
Returns - The contents of the viewport within the specified rectangle as a bitmap image, or undefined if the image could not be read.
Defined in
Last Updated: 08 January, 2020