Problem with arrows

Pls give advice how can i do arrows like in bpwin

Please read GoJS Link Connection Points on Nodes -- Northwoods Software. You’ll want your Node template to include something like:

{ fromSpot: go.Spot.AllSides, toSpot: go.Spot.AllSides },

A number of sample node templates demonstrate this, such as Entity Relationship.

sorry but i mean about how i can connect arrows with empty fields on the edges of the window.

It would be easiest to put dummy nodes there. You can set their opacity to 0.0, if you don’t want to show them. I assume you’ll want to turn off Diagram.allowHorizontalScroll, allowVerticalScroll, and allowZoom. And set Diagram.fixedBounds so that the dummy nodes don’t take up space.

And you’ll want a “ViewportBoundsChanged” DiagramEvent listener so that you can update the positions of those dummy nodes as the DIV changes size.