map Methods

This section describes the methods exposed by the DevExpress.viz.map object.

This object is used for manipulating map projections.

projection(data)

Creates a new projection.

Export: projection
Parameters:
data: Object
An object specifying the conversion functions.
Object structure:
to: function(coordinates)
The function that converts coordinates from a data space to [-1, 1] * [-1, 1] space.
from: function(coordinates)
The function that converts coordinates from the [-1, 1] * [-1, 1] space to the data space.
aspectRatio: Number
The projection's aspect ratio.
Return Value: Object
The projection.

After creating the custom projection, you can add it to the projections storage or assign the returning object to the projection option of the VectorMap widget.

View Demo