World countries datamaps component for Angular.
Version v4 of this package does NOT depend on Google GeoCharts but uses its own embedded map.
If you want to use v3 (which depends on Google GeoCharts), please check ReadMe v3.
npm install --save countries-map
Import CountriesMapModule
in your app.module.ts
:
import { CountriesMapModule } from 'countries-map';
@NgModule({
...
imports: [
...
CountriesMapModule,
],
})
export class AppModule { }
In your templates, use the <countries-map>
component like this:
<countries-map [data]="mapData"/>
and in the corresponding .ts
file:
import { CountriesData } from 'countries-map';
...
public mapData: CountriesData = {
'ES': { 'value': 416 },
'GB': { 'value': 94 },
'FR': { 'value': 255 }
};
Typing the data input with CountriesData
is not mandatory but it is highly recommendable because it will help you correctly define the object to pass to <countries-map>
's [data]
attribute.
Element <countries-map>
accepts the following attributes/inputs:
Attribute | Type | Default | Description |
---|---|---|---|
data |
CountriesData |
Required | Describes list of countries and their value and extra data (if any). See below description for interface CountriesData . |
countryLabel |
string |
'Country' |
Caption label for country name. |
valueLabel |
string |
'Value' |
Caption label for country's value. |
showCaption |
boolean |
true |
Shows/hides caption. |
captionBelow |
boolean |
true |
Places caption below or above the map. |
minValue |
number |
Optional | If stated, sets the base to be used as lowest value expected in the color scale (values below minValue will have same color). |
maxValue |
number |
Optional | If stated, sets the base to be used as highest value expected in the color scale (values above maxValue will have same color). |
minColor |
string |
'white' |
Hex or named color representing the lowest value. |
maxColor |
string |
'red' |
Hex or named color representing the highest value. |
noDataColor |
string |
'#CFCFCF' |
Hex or named color for countries not included in data list. |
exceptionColor |
string |
'#FFEE58' |
Hex or named color for countries with value null or undefined . |
backgroundColor |
string |
'white' |
Hex or named color of the map background. |
CountriesData
This interface is a convenience for describing the object to be passed to data
attribute.
The list should look like this:
mapData: CountriesData = {
'ES': { 'value': 416 },
'GB': { 'value': 94, 'extra': { 'foo': 'bar' } },
'FR': { 'value': 255, 'extra': { 'baz': 41 } }
};
Actual implementation:
interface CountriesData {
[countryCode: string]: CountryData;
}
interface CountryData {
value: number;
extra?: CountryExtraData;
}
interface CountryExtraData {
[key: string]: number |string;
}
Element <countries-map>
accepts callbacks for the following events:
The chartReady
event is fired when a chart is completely loaded.
Bind the chartReady
event in the countries-map
component like this:
<countries-map [data]="mapData" (chartReady)="ready()"/>
Your ready()
function receives no parameters. You can use it like:
public ready() {
// your logic
}
The chartError
event is fired if there are some errors with a chart.
Bind the chartError
event in the countries-map
component, like this:
<countries-map [data]="mapData" (chartError)="error($event)"/>
Your error()
function is passed an event which interface looks like this:
interface ChartErrorEvent {
id: string | CharErrorCode;
message: string;
detailedMessage: string;
options: Object;
}
You can import the ChartErrorEvent
interface and CharErrorCode
enum in your .ts
file:
import { ChartErrorEvent, CharErrorCode } from 'countries-map';
and then use it like:
public error(event: ChartErrorEvent) {
if (event.id === CharErrorCode.loading) {
// error was produced during loading
}
// your logic
}
See more details about [returned values for error event][google-charts-error-event].
The chartSelect
event is fired when a chart is selected/clicked.
Bind the chartSelect
event in the countries-map
component, like this:
<countries-map [data]="mapData" (chartSelect)="select($event)"/>
Your select()
function is passed an event whose interface looks like this:
interface ChartSelectEvent {
selected: boolean;
value: number | null;
country: string;
extra?: CountryExtraData;
}
You can import the ChartSelectEvent
interface in your .ts
file:
import { ChartSelectEvent } from 'countries-map';
and then use it like:
public select(event: ChartSelectEvent) {
// your logic
}
You can apply styles to most of the countries-map caption area (if you decide to show it) and map container so that you can integrate your countries-map in your site's look&feel.
These are the classes you can apply styles to, hierarchically displayed, and associated to their wrappers:
cm-map-content
: world mapcm-caption-container
: full caption area
cm-simple-caption
: main caption section (countryLabel
/valueLabel
area)cm-country-label
: countryLabel
keyword or country name (whichever is shown)
cm-defaut-label
: countryLabel
keywordcm-country-name
: country namecm-value-label
: valueLabel
keyword or value label, plus actual value
cm-value-text
: valueLabel
keyword or value label (whichever is shown)cm-value-content
: actual value for the current countrycm-extended-caption
: area for the extra itemscm-extended-item
: each of the single extra items (made of key and value)
cm-extended-label
: key of the single extra itemcm-extended-value
: value of the single extra itemCurrent valid country codes are widely-recognized sovereign nations plus some other autonomous realms. Check the currently valid list at @jagomf/countrieslist
.
Highlighted projects currently using countries-map:
Contact us if you want to get highlighted.