options |
Options.
| Name |
Type |
Description |
map |
ol.Map
|
undefined
|
Reference to an ol.Map object. |
maxLines |
number
|
undefined
|
The maximum number of meridians and parallels from the center of the
map. The default value is 100, which means that at most 200 meridians
and 200 parallels will be displayed. The default value is appropriate
for conformal projections like Spherical Mercator. If you increase
the value more lines will be drawn and the drawing performance will
decrease. |
strokeStyle |
ol.style.Stroke
|
undefined
|
The stroke style to use for drawing the graticule. If not provided, the
lines will be drawn with rgba(0,0,0,0.2), a not fully opaque black. |
targetSize |
number
|
undefined
|
The target size of the graticule cells, in pixels. Default
value is 100 pixels. |
showLabels |
boolean
|
undefined
|
Render a label with the respective latitude/longitude for each graticule
line. Default is false. |
lonLabelFormatter |
undefined
|
function
|
Label formatter for longitudes. This function is called with the longitude as
argument, and should return a formatted string representing the longitude.
By default, labels are formatted as degrees, minutes, seconds and hemisphere. |
latLabelFormatter |
undefined
|
function
|
Label formatter for latitudes. This function is called with the latitude as
argument, and should return a formatted string representing the latitude.
By default, labels are formatted as degrees, minutes, seconds and hemisphere. |
lonLabelPosition |
number
|
undefined
|
Longitude label position in fractions (0..1) of view extent. 0 means at the
bottom of the viewport, 1 means at the top. Default is 0. |
latLabelPosition |
number
|
undefined
|
Latitude label position in fractions (0..1) of view extent. 0 means at the
left of the viewport, 1 means at the right. Default is 1. |
lonLabelStyle |
ol.style.Text
|
undefined
|
Longitude label text style. The default is
new ol.style.Text({
font: '12px Calibri,sans-serif',
textBaseline: 'bottom',
fill: new ol.style.Fill({
color: 'rgba(0,0,0,1)'
}),
stroke: new ol.style.Stroke({
color: 'rgba(255,255,255,1)',
width: 3
})
});
Note that the default's textBaseline configuration will not work well for
lonLabelPosition configurations that position labels close to the top of
the viewport. |
latLabelStyle |
ol.style.Text
|
undefined
|
Latitude label text style. The default is
new ol.style.Text({
font: '12px Calibri,sans-serif',
textAlign: 'end',
fill: new ol.style.Fill({
color: 'rgba(0,0,0,1)'
}),
stroke: new ol.style.Stroke({
color: 'rgba(255,255,255,1)',
width: 3
})
});
Note that the default's textAlign configuration will not work well for
latLabelPosition configurations that position labels close to the left of
the viewport. |
|
OpenLayers