Class: Grid

Blockly.Grid

class   static

Constructor

Grid

new Grid(pattern, options)

Class for a workspace's grid.

Parameter
pattern	SVGElement The grid's SVG pattern, created during injection. Value must not be null.
options	Object A dictionary of normalized options for the grid. See grid documentation: https://developers.google.com/blockly/guides/configure/web/grid Value must not be null.

Methods

createDom

package   static

createDom(rnd, gridOptions, defs) returns SVGElement

Create the DOM for the grid described by options.

Parameter
rnd	string A random ID to append to the pattern's ID.
gridOptions	Object The object containing grid configuration. Value must not be null.
defs	SVGElement The root SVG element for this workspace's defs. Value must not be null.

Returns

non-null SVGElement The SVG element for the grid pattern.

dispose

package

dispose()

Dispose of this grid and unlink from the DOM.

getPatternId

package

getPatternId() returns string

Get the id of the pattern element, which should be randomized to avoid conflicts with other Blockly instances on the page.

Returns

string The pattern ID.

getSpacing

package

getSpacing() returns number

Get the spacing of the grid points (in px).

Returns

number The spacing of the grid points.

moveTo

package

moveTo(x, y)

Move the grid to a new x and y position, and make sure that change is visible.

Parameter
x	number The new x position of the grid (in px).
y	number The new y position of the grid (in px).

shouldSnap

package

shouldSnap() returns boolean

Whether blocks should snap to the grid, based on the initial configuration.

Returns

boolean True if blocks should snap, false otherwise.

update

package

update(scale)

Update the grid with a new scale.

Parameter
scale	number The new workspace scale.