Unable to download complete diagram as image

GoJS
1

Hi Walter,
i am trying to export a huge diagram.
actual diagram:

full
full949×492 167 KB

when i export a diagram ports are missing

fullv

below is the code i am using

  img = this.diagram.makeImageData({
                          background: "white",
                          scale: 0.8,
                          maxSize: new go.Size(Infinity, Infinity)
                        });

and in animation finish event i have been using ‘centerrect’ for a node.
what i observed is, if i zoom out the diagram. i can get the whole diagram.

  1. if i use zoomtofit image is not clear.
    what is the main reason to cause this. and what might be the actual solution.
2

What is the Diagram.documentBounds?

Which browser are you using, and do you get the same results in different browsers?

3

hi Walter,

please find the documentBounds and issue is replicating in all browsers.
A {x: -59, y: -34410, width: 6570, height: 51362.55166015625, D: true}

4

I hope you understand that such an image is probably occupying about 1.3GB in memory. Is that what you want? I think the browsers have limits on how large an image they can reliably draw to.

This is why it’s unwise to specify a maxSize of Infinity x Infinity.

5

in browser it is showing good. when i am trying to get it as image, unable to do it. is there any way, by using less memory i should get image. and how can i define maxSize for this type of images and when i decrease scaling to 0.2, i am able to download it. but it is not much clear.

6

Either split it up into multiple images, or render to SVG rather than to a raster image.