Issue when gating against non-selected channel

[thejohnhoffer]

Problem

When I try to activate the centroid rendering (OR-mode / pie-chart), I see an error on this line:

CsvGatingOverlay.js:230 Uncaught TypeError: Cannot read properties of undefined (reading 'color')
    at eval (CsvGatingOverlay.js:230:113)
    at Array.forEach (<anonymous>)
    at eval (CsvGatingOverlay.js:224:36)

Here's what I can figure out:

• There's an object mapping called _this.channel_list.currentChannels.
• In that mapping, there are no keys that match the gatingChannelIndices[i].index that I have selected

It seems like the simplest fix would be to add the following conditional check:

if (gatingChannelIndices[i].index in  _this.channel_list.currentChannels) {
 /* then draw the arcs */
}

Replication

• I have loaded the crop-crc01 dataset channel ome-tiff, mask tiff, quantification csv, and cluster csv
• I have selected one channel (Hoechst0) and one mask (Keratin_570)
• I click the Centroids (OR-mode) checkbox

Question

However, I'm not sure if there's a logical error. My question would be:
Should _this.channel_list.currentChannels contain all active channels?

I wonder if it is related to this FIXME statement:

Retrieve color (FIXME - need to integrate into viewer manager)

[thejohnhoffer]

Ah, my issue stems from attempting to perform gating on a channel that is not selected.

So I've selected "Keratin" for gating on the right, but I didn't view that channel on the left.

It seems the software assumes that I'll only be gating against visible channels!
That may be a fine assumption, but perhaps an error message would be nice.