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SMK Client API Examples

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Benjamin Jubb edited this page Jul 17, 2018 · 9 revisions

SMK Client API Examples

Assumptions

For the following examples, the reader should assume the following:

  • There is a site at https://example.com/demo, this will be the base for the URLs used below.

  • There is a file index.html hosted at URL above.
    The comment marks where the examples insert the SMK <script> element.

<!DOCTYPE html>
<html>
    <head>
        <title></title>
        <!-- SMK <script> element -->
        <style>
            #smk-map-frame {
                position: absolute;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;

                margin: 0;
                padding: 0;
            }
        </style>
    </head>

    <body id="smk-map-frame"></body>
</html>
  • There is a file map-config.json in same folder as index.html.
{
    "smkId": "test-app",
    "smkRevision": 1,
    "name": "Test App",
    "createdBy": "vivid",
    "published": false,
    "viewer": {
        "type": "leaflet",
        "baseMap": "Streets"
    },
    "tools": [
        { 
            "type": "markup",
            "enabled": false
        },
        { 
            "type": "baseMaps",
            "enabled": true
        }
    ]
}
  • There is a file victoria.json in same folder as index.html.
{
    "viewer": {
        "location": {
            "extent": [ -124.0750, 48.3087, -123.2273, 48.7519 ]
        },
    }
}
  • There is a file kamloops.json in same folder as index.html.
{
    "viewer": {
        "location": {
            "extent": null,
            "center": [ -120.38298432016748, 50.677415757969214 ],
            "zoom": 11
        }
    }
}
  • There is a file wms-layer.json in same folder as index.html.
{
    "layers": [
        {
            "id": "whse-tantalis-ta-crown-leases-svw",
            "type": "wms",
            "serviceUrl": "https://openmaps.gov.bc.ca/geo/pub/wms",
            "title": "Lease Applications - Tantalis - Colour Filled",
            "layerName": "WHSE_TANTALIS.TA_CROWN_LEASES_SVW",
            "styleName": "Lease-Applications-Tantalis-Colour-Filled",
            "isVisible": true
        }
    ]
}
  • There is a file wms-layer-attributes.json in same folder as index.html.
{
    "layers": [
        {
            "id": "whse-tantalis-ta-crown-leases-svw",
            "titleAttribute": "INTRID_SID",
            "geometryAttribute": "SHAPE",
            "attributes": [
                { "id": "intrid-sid", "name": "INTRID_SID", "title": "Intrid Sid" },
                { "id": "disposition-transaction-sid", "name": "DISPOSITION_TRANSACTION_SID", "title": "Disposition Transaction Sid" },
                { "id": "tenure-stage", "name": "TENURE_STAGE", "title": "Tenure Stage" },
                { "id": "tenure-status", "name": "TENURE_STATUS", "title": "Tenure Status" },
                { "id": "tenure-type", "name": "TENURE_TYPE", "title": "Tenure Type" },
                { "id": "tenure-subtype", "name": "TENURE_SUBTYPE", "title": "Tenure Subtype" },
                { "id": "tenure-purpose", "name": "TENURE_PURPOSE", "title": "Tenure Purpose" },
                { "id": "tenure-subpurpose", "name": "TENURE_SUBPURPOSE", "title": "Tenure Subpurpose" },
                { "id": "crown-lands-file", "name": "CROWN_LANDS_FILE", "title": "Crown Lands File" },
                { "id": "tenure-document", "name": "TENURE_DOCUMENT", "title": "Tenure Document" },
                { "id": "tenure-expiry", "name": "TENURE_EXPIRY", "title": "Tenure Expiry" },
                { "id": "tenure-location", "name": "TENURE_LOCATION", "title": "Tenure Location" },
                { "id": "tenure-legal-description", "name": "TENURE_LEGAL_DESCRIPTION", "title": "Tenure Legal  Description" },
                { "id": "tenure-area-derivation", "name": "TENURE_AREA_DERIVATION", "title": "Tenure Area Derivation" },
                { "id": "tenure-area-in-hectares", "name": "TENURE_AREA_IN_HECTARES", "title": "Tenure Area In Hectares" },
                { "id": "responsible-business-unit", "name": "RESPONSIBLE_BUSINESS_UNIT", "title": "Responsible Business  Unit" },
                { "id": "code-chr-stage", "name": "CODE_CHR_STAGE", "title": "Code Chr Stage" }
            ]
        }
    ]
}
  • There is a file wms-layer-query.json in same folder as index.html.
{
    "viewer": {
        "activeTool": "query--whse-tantalis-ta-crown-leases-svw--query1",
    },
    "tools": [
        {
            "type": "query",
            "instance": "whse-tantalis-ta-crown-leases-svw--query1",
            "onActivate": "execute",
        }
    ],
    "layers": [
        {
            "id": "whse-tantalis-ta-crown-leases-svw",
            "queries": [
                {
                    "id": "query1",
                    "title": "Tenure Status",
                    "description": "Find features for a given Tenure Status",
                    "parameters": [
                        {
                            "id": "param1",
                            "type": "constant",
                            "value": "ACCEPTED"
                        }
                    ],
                    "predicate": {
                        "operator": "and",
                        "arguments": [
                            {
                                "operator": "equals",
                                "arguments": [
                                    {
                                        "operand": "attribute",
                                        "name": "TENURE_STATUS"
                                    },
                                    {
                                        "operand": "parameter",
                                        "id": "param1"
                                    }
                                ]
                            }
                        ]
                    }
                }
            ]
        }
    ]
}

The examples will provide a setup that gives the <script> element and the parameters for URL that is being requested. The URL parameters (if any) are presented in a list for ease of reading, and the URL is linked to the properly formatted URL. If multiple setups are provided for an example, it is asserted that they all have exactly the same effect.

An example with a <script> element, followed by the URL to be invoked:

Setup example

<script src="smk.js"
    smk-config="show-tool=baseMaps"
></script>

https://example.com/demo?

  • smk-show-tool=baseMaps

Example 1

Using default configuration.

Setup 1A

<script src="smk.js"></script>

https://example.com/demo?

Result 1

  • The map fills browser window.
  • The window/tab has title 'SMK Default Map'.
  • These tools are available: directions, location, markup, and search.
  • Map is centered over BC, showing whole province.
  • The base map is 'Topographic'.

Discussion 1

The <script> element doesn't specify a map configuration file, so the default configuration it used.

Example 2

Loading configuration from a URL.

Setup 2A

<script src="smk.js"></script>

https://example.com/demo?

  • smk-show-tool=baseMaps
  • smk-hide-tool=markup
  • smk-config={"name":"Test App","viewer":{"baseMap":"Streets"}}

Setup 2B

<script src="smk.js"
    smk-config="show-tool=baseMaps|hide-tool=markup|{&quot;name&quot;:&quot;Test App&quot;,&quot;viewer&quot;:{&quot;baseMap&quot;:&quot;Streets&quot;}}"
></script>

https://example.com/demo?

Setup 2C

<script src="smk.js"
    smk-config="map-config.json"
></script>

https://example.com/demo?

Setup 2D

<script src="smk.js"></script>

https://example.com/demo?

  • smk-config=map-config.json

Result 2

  • The map fills browser window.
  • The window/tab has title 'Test App'.
  • These tools are available: directions, location, search, and baseMaps.
  • Map is centered over BC, showing whole province.
  • The base map is 'Streets'.

Discussion 2

Example 3

Loading a layer.

Setup 3A

<script src="smk.js"
    smk-config="map-config.json|wms-layer.json|show-tool=layers"
></script>

https://example.com/demo?

Setup 3B

<script src="smk.js"
    smk-config="map-config.json|show-tool=layers"
></script>

https://example.com/demo?

  • smk-config=wms-layer.json

Setup 3C

<script src="smk.js"
    smk-config="map-config.json"
></script>

https://example.com/demo?

  • smk-config=wms-layer.json
  • layer=https://openmaps.gov.bc.ca/geo/pub/wms,WHSE_TANTALIS.TA_CROWN_LEASES_SVW,Lease-Applications-Tantalis-Colour-Filled,Lease Applications - Tantalis - Colour Filled

Result 3

  • The map fills browser window.
  • The window/tab has title 'Test App'.
  • These tools are available: directions, location, search, markup, and layers.
  • Map is centered over BC, showing whole province.
  • The base map is 'Streets'.
  • The layer list shows one layer: 'Lease Applications - Tantalis - Colour Filled', and it is visible.
  • The map shows little green spots for the 'Lease Applications - Tantalis - Colour Filled' layer.

Discussion 3

Example 4

Setting location of map.

Setup 4A

<script src="smk.js"
    smk-config="victoria.json"
></script>

https://example.com/demo?

Setup 4B

<script src="smk.js"></script>

https://example.com/demo?

  • smk-config=victoria.json

Setup 4C

<script src="smk.js"
    smk-config="ll=-123.65114,48.53077|z=10"
></script>

https://example.com/demo?

Setup 4D

<script src="smk.js"></script>

https://example.com/demo?

  • smk-z=10
  • smk-ll=-123.65114,48.53077

Setup 4E

<script src="smk.js"></script>

https://example.com/demo?

  • smk-center=-123.65114,48.53077,10

Setup 4F

<script src="smk.js"></script>

https://example.com/demo?

  • smk-extent=-124.0750,48.3087,-123.2273,48.7519

Result 4

  • The map fills browser window.
  • The window/tab has title 'SMK Default Map'.
  • These tools are available: directions, location, search, and markup.
  • Map is centered over southern Vancouver Island.
  • The base map is 'Topographic'.

Example 5

Changing URL parameter prefix.

Setup 5A

<script src="smk.js"
    smk-config="victoria.json|?foo-"
></script>

https://example.com/demo?

  • smk-config=kamloops.json

Setup 5B

<script src="smk.js"
    smk-config="?foo-|victoria.json"
></script>

https://example.com/demo?

  • foo-config=kamloops.json

Setup 5C

<script src="smk.js"
    smk-config="kamloops.json|?foo-"
></script>

https://example.com/demo?

  • foo-config=victoria.json

Setup 5D

<script src="smk.js"
    smk-config="?"
></script>

https://example.com/demo?

  • config=victoria.json

Result 5

  • The map fills browser window.
  • The window/tab has title 'SMK Default Map'.
  • These tools are available: directions, location, search, and markup.
  • Map is centered over southern Vancouver Island.
  • The base map is 'Topographic'.

Discussion 5

The order of configuration sources in smk-config attribute is important. URL parameters that don't match the prefix are ignored. The URL parameter prefix can be empty.

Example 6

Enabling tools.

Setup 6A

<script src="smk.js"
    smk-config="show-tool=all"
></script>

https://example.com/demo?

Setup 6B

<script src="smk.js"></script>

https://example.com/demo?

  • smk-show-tool=all

Setup 6C

<script src="smk.js"
    smk-config="?smk-|show-tool=about,baseMaps,coordinate,identify,layers"
></script>

https://example.com/demo?

  • smk-show-tool=pan,scale,select,zoom
  • smk-show-tool=measure,menu,minimap

Result 6

  • The map fills browser window.
  • The window/tab has title 'SMK Default Map'.
  • These tools are available: about, baseMaps, coordinate, directions, identify, layers, location, markup, measure, menu, minimap, pan, scale, search, select, and zoom.
  • The base map is 'Topographic'.

Discussion 6

The all tool stands for all tools. The order of tools that tools are enabled doesn't control their position.

Example 7

Configuring tools.

Setup 7A

<script src="smk.js"
    smk-config="show-tool=scale|{&quot;tools&quot;:[{&quot;type&quot;:&quot;scale&quot;,&quot;showFactor&quot;:false}]}"
></script>

https://example.com/demo?

Setup 7B

<script src="smk.js"
    smk-config="show-tool=scale|?smk-"
></script>

https://example.com/demo?

  • smk-config={"tools":[{"type":"scale","showFactor":false}]}

Setup 7C

<script src="smk.js"></script>

https://example.com/demo?

  • smk-show-tool=scale
  • smk-config={"tools":[{"type":"scale","showFactor":false}]}

Result 7

  • The map fills browser window.
  • The window/tab has title 'SMK Default Map'.
  • These tools are available: directions, location, scale, search, and markup.
  • The scale display doesn't show the scale factor.
  • The base map is 'Topographic'.

Example 8

Running an ad-hoc query.

Setup 8B

<script src="smk.js"></script>

https://example.com/demo?

  • smk-config=wms-layer.json
  • smk-config=wms-layer-attributes.json
  • smk-query=whse-tantalis-ta-crown-leases-svw,and,TENURE_STATUS="ACCEPTED"

Setup 8B

<script src="smk.js"></script>

https://example.com/demo?

  • smk-config=wms-layer.json
  • smk-config=wms-layer-attributes.json
  • smk-config=wms-layer-query.json

Result 8

  • The map fills browser window.
  • The window/tab has title 'SMK Default Map'.
  • These tools are available: directions, location, scale, search, query, and markup.
  • The base map is 'Topographic'.
  • The query tool is activated when the map loads.
  • The query is executed immediately.

Discussion 8

The ad-hoc URL parameter query definitions only allow a subset of possible query structures. The ad-hoc URL parameter query also controls the tool active at startup, and uses a special configuration to execute query immediately. For this query, the conjunction could be 'and' or 'or', as there is only one predicate.

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