Geo LINESTRING

[Ez_Kul]

What is the best way to add point to existing LINESTRING in codeless?

[stanislaw.grin]

Hello Ez,

you can use the Update GEO LineString block for this purpose

[Ez_Kul]

Hi Stan,

That block updates the whole LineString. Is there a way to add just one point to the end of array in LineString?

[mark-piller]

Hi Ez,

I do not see a codeless block to do what you’re asking for. Would you be interested in a solution that uses code? (it can be embedded into codeless logic)

Regards,
Mark

[Ez_Kul]

Hi Mark,

That what I thought. It would be great to have example.

In my case it looks like this: I receive LAT and LON then I need to add that point to existing GEO LineString.
I tried to compose list of points from existing LineString then add point but I couldn’t extract points from LineString. Even If there is way to extract points from LineString then structure becomes bulky. Solution with code then embed to codeless logic sounds better.

[mark-piller]

Is your existing LineString stored in some codeless variable?

[Ez_Kul]

I pull it from DB and yes I can store it in variable.

[mark-piller]

Here’s an example:

The Custom Code block has the following logic:

var linestringPoints = linestring.getPoints();
linestringPoints.push( point );
linestring.setPoints( linestringPoints )

Here’s the output of the program:

Regards,
Mark

[Ez_Kul]

Awesome! Thank you, Mark!