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 segments.
- -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 substituted:
- %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)
- -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 substituted:
- %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)
- -onEnter
- type: string (default: "")
- Tcl command which is executed if a mouse enters the item. Before evaluation the following percent strings are substituted:
- %w canvas name
%i item id %x x coordinate %y y coordinate %s state of the buttons and modifiers (bitmask)
- -onLeave
- type: string (default: "")
- Tcl command which is executed if a mouse enters the item. Before evaluation the following percent strings are substituted:
- %w canvas name
%i item id %x x coordinate %y y coordinate %s state of the buttons and modifiers (bitmask)
- -onMotion
- type: string (default: "")
- Tcl command which is executed if the mouse is moved inside the item. Before evaluation the following percent strings are substituted:
- %w canvas name
%i item id %x x coordinate %y y coordinate %s state of the buttons and modifiers (bitmask)
- -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.
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