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How to get coordinates of each vertex of a polygon?

SiyabongaKubeka

Hi All

I am trying to get the coordinates of each vertex and separate they by putting all the latitudes on one field and all the longitudes on one field. This is who I tried to do it but it is not dong what I want it to do:

for (var i = 0; i < gra.geometry.rings.length; i++){
for (var p = 0; p < gra.geometry.rings.length; p++){
crmLatitude = String(gra.geometry.rings);
crmLongitude = String(gra.geometry.rings

);
var LatLon = String(gra.geometry.rings

);
console.log(LatLon);
latlon = LatLon;

}

How can I do it? Please assist.

Kind Regards

Siyabonga Kubeka

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Accepted answers

RobertScheitlin__GISP

crmLatitude <SPAN class="operator token">=</SPAN> <SPAN class="token function">String</SPAN><SPAN class="punctuation token">(</SPAN>gra<SPAN class="punctuation token">.</SPAN>geometry<SPAN class="punctuation token">.</SPAN>rings<SPAN class="punctuation token">[</SPAN>i<SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">[</SPAN>p<SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">getLatitude</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
crmLongitude <SPAN class="operator token">=</SPAN> <SPAN class="token function">String</SPAN><SPAN class="punctuation token">(</SPAN>gra<SPAN class="punctuation token">.</SPAN>geometry<SPAN class="punctuation token">.</SPAN>rings<SPAN class="punctuation token">[</SPAN>i<SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">[</SPAN>p<SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">getLongittude</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

All comments

SiyabongaKubeka

Hi Robert,

When I use the suggestion above I get the following error saying that getLatitude and getLongitude are not functions.

RobertScheitlin__GISP

https://developers.arcgis.com/javascript/3/jsapi/polygon-amd.html#polygon3

Build the polygon using the coordinates saved.

var singleRingPolygon = new Polygon([[50, 0], [150, 20], [150, -20], [50,0]]);

SiyabongaKubeka

Hi Robert,

Thank you very much. One last question, is it possible to use those stored coordinates to recreate the polygon? The idea is to save a map and the polygon, so that it can be opened at another stage. If there is a way, how do I do it?

Regards

Siyabonga Kubeka

RobertScheitlin__GISP

crmLatitude <SPAN class="operator token">=</SPAN> <SPAN class="token function">String</SPAN><SPAN class="punctuation token">(</SPAN>gra<SPAN class="punctuation token">.</SPAN>geometry<SPAN class="punctuation token">.</SPAN>rings<SPAN class="punctuation token">[</SPAN>i<SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">[</SPAN>p<SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">getLatitude</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
crmLongitude <SPAN class="operator token">=</SPAN> <SPAN class="token function">String</SPAN><SPAN class="punctuation token">(</SPAN>gra<SPAN class="punctuation token">.</SPAN>geometry<SPAN class="punctuation token">.</SPAN>rings<SPAN class="punctuation token">[</SPAN>i<SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">[</SPAN>p<SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">getLongittude</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

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