arrows button icon

What is the significance of the plus sign above the arrows in the arrow icons?

Dear Bob,

In Marvin JS reaction arrows and graphical arrows aren't distinguished during editing. That is why Arrow tool is also a Reaction tool, so you can draw the whole reaction and map atoms manually with this one tool. The arrow and the plus sign together are intended to indicate this complex function.

For more information , please check this video:

https://docs.chemaxon.com/display/marvinjs/Video+Tutorials#VideoTutorials-smartReaction

Regards,
Eszter 

Ouch. I completely understand why you introduced this change, but it is totally incompatible with the code we have already developed. We simply cannot have MarvinJS generate an MRV that encodes the arrow in one way if there is only one arrow, and encodes it a different way when there is more than one. 

The best solution here is to give the developer the option of providing the new arrow button or the old one. That way, we can have MarvinJS always encode an arrow as a graphical arrow, even if there is only one arrow in the drawing.

Dear Bob,

 

No problem, you can switch off reaction convert by calling setServices(services) method:

var setting = {"reactionconvertws" : null};
marvinSketcherInstance.setServices(setting); 

I hope that helped. Regards,

 

Janos

That solves the problem. Thanks!