JSXGraph Reference
ElementsClass JXG.Image
↳ JXG.Image
Image:
It inherits from @see GeometryElement.
Defined in: image.js.
| Constructor Attributes | Constructor Name and Description |
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JXG.Image(board, url, coords, size, attributes)
Construct and handle images
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| Method Attributes | Method Name and Description |
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hasPoint(x, y)
Checks whether (x,y) is over or near the image;
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setPositionDirectly(method, coords, oldcoords)
Sets x and y coordinate of the image.
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| <private> |
update()
Recalculate the coordinates of lower left corner and the width amd the height.
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Updates the coordinates of the top left corner of the image.
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Send an update request to the renderer.
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Updates the size of the image.
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Update the anchor point of the image, i.e.
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Class Detail
JXG.Image(board, url, coords, size, attributes)
Construct and handle images
- Parameters:
- board
- url
- coords
- size
- attributes
Method Detail
{Boolean}
hasPoint(x, y)
Checks whether (x,y) is over or near the image;
- Parameters:
- {Number} x
- Coordinate in x direction, screen coordinates.
- {Number} y
- Coordinate in y direction, screen coordinates.
- Returns:
- {Boolean} True if (x,y) is over the image, False otherwise.
{JXG.Image}
setPositionDirectly(method, coords, oldcoords)
Sets x and y coordinate of the image.
- Parameters:
- {number} method
- The type of coordinates used here. Possible values are JXG.COORDS_BY_USER and JXG.COORDS_BY_SCREEN.
- {Array} coords
- coordinates in screen/user units of the mouse/touch position
- {Array} oldcoords
- coordinates in screen/user units of the previous mouse/touch position
- Returns:
- {JXG.Image} this element
<private>
update()
Recalculate the coordinates of lower left corner and the width amd the height.
updateCoords()
Updates the coordinates of the top left corner of the image.
updateRenderer()
Send an update request to the renderer.
updateSize()
Updates the size of the image.
updateSpan()
Update the anchor point of the image, i.e. the lower left corner
and the two vectors which span the rectangle.