Remove gridlines in heatmap

OleksandrG

Heatmap with categorical x, y, Color variables shows gridlines even when axis settings and plot customization settings are set to disable. They are barely visible when there are a few units on x and y axes, but show up very well on a larger map with dozens of units.

 

 

It follows background color; it sometimes changes as I rescale the graph builder window (rendering?).

How do I disable it?

JMP 18.1.1

Heatmap gridlines example.jmp

Craige_Hales

I think it is an unintentional artifact rather than a purposeful line that can be removed. It's possible that saving it to a SVG file will give you the image you need. But that might depend on the software that renders the SVG. (SVG is a vector format rather than a pixel format and not all SVG rendering packages use the same rules.) PDF might also be a good choice.

It's also possible there is a preference (probably under windows-specific, try the hardware accelerated one) that might turn off the anti-aliasing behavior that might be triggering the problem. I suspect the rectangle borders are half way between pixels and the OS is fading the edge pixels toward the background color...maybe even on both adjacent rectangles.