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# canvas ellipse

## Name

canvas ellipse -- A canvas ellipse item. (in gnoclCanvas)

## Synopsis

`canvasId` create ellipse [`-option` `value`...]

## Options

-centerRadius

  type: boolean (default: 1)

  Whether the coordinates are a list of the top left and bottom right points, or a list of the coordinates of the center plus a radius.

-coords

  type: list-of-floats

  List of 4 (x1, y1, x2, y2) or, if centerRadius is set, 3 (centerX, centerY, radius) coordinates

-dash

  type: list (default: "")

  Dash pattern used for this item. The list must contain an even number of integer. The odd elements of this list give the length in pixel of the line segements, the even elements give the length of the space between these line segements.

-fill

  type: color with transparancy (default: black)

  Fill color of the ellipse. The empty string means unfilled.

-onButtonPress

  type: string (default: "")

  Tcl command which is executed if a mouse button is press inside the item. Before evaluation the following percent strings are substituated: TABLE %% | % %w | canvas name %i | item id %t | type of event: one of buttonPress, button2Press or button3Press %x | x coordinate %y | y coordinate %b | button number %s | state of the buttons and modifiers (bitmask) TABLE

-onButtonRelease

  type: string (default: "")

  Tcl command which is executed if a mouse button is released if it has been pressed inside the item. Before evaluation the following percent strings are substituated: TABLE %% | % %w | canvas name %i | item id %t | type of event: always buttonRelease %x | x coordinate %y | y coordinate %b | button number %s | state of the buttons and modifiers (bitmask) TABLE

-onEnter

  type: string (default: "")

  Tcl command which is executed if a mouse enters the item. Before evaluation the following percent strings are substituated: TABLE %% | % %w | canvas name %i | item id %x | x coordinate %y | y coordinate %s | state of the buttons and modifiers (bitmask) TABLE

-onLeave

  type: string (default: "")

  Tcl command which is executed if a mouse enters the item. Before evaluation the following percent strings are substituated: TABLE %% | % %w | canvas name %i | item id %x | x coordinate %y | y coordinate %s | state of the buttons and modifiers (bitmask) TABLE

-onMotion

  type: string (default: "")

  Tcl command which is executed if the mouse is moved inside the item. Before evaluation the following percent strings are substituated: TABLE %% | % %w | canvas name %i | item id %x | x coordinate %y | y coordinate %s | state of the buttons and modifiers (bitmask) TABLE

-parent

  type: tag-or-id

  This option sets the parent of the item. The parent must be a clipGroup item, which implements clipping for its children.

-outline

  type: color with transparancy (default: black)

  Outline color of the ellipse.

-tags

  type: list (default: "")

  List of tags to be associated with this item. A tag must start with a alphabetic character which is followed by zero or more alphabetic or numeric characters.

-width

  type: float

  Width of the outline.

## Description

An ellipse is define either by its top left and bottom right points, or by its center point and a radius. The rectangle can be filled, or only outlined.

## See also

canvas bPath, canvas rectangle, `GnomeCanvasRE`

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