Electronic raster charts...

[[163233]]

I've got Imray charts on my Raymarine E7d.
Am I missing something? There is actually only one Cape Trafalgar isn't there?
Is there some way that you're supposed to adjust this?

 

[Bobc]

That's not what they do on my plotter (Raymarine a95). Yours don't look like they're stitching together properly

 

[[163233]]

That's not what they do on my plotter (Raymarine a95). Yours don't look like they're stitching together properly

You mean in the same area? Are yours current? Maybe I need an update bought only last year though.
Other places don't necessarily show it quite so pronounced but it's often there.

I find Imray a bit sloppy generally, this time a pilot book:-


(apols for my similarly sloppy photography)

 

[Bobc]

Mine are over a year old too, but they overlay perfectly.

 

[Sticky Fingers]

The tiling is wrong. Are these hooky charts?

 

[Sticky Fingers]

It looks terrible by the way even without the tiling errors, so whatever you bought it's crap.

 

[[163233]]

It looks terrible by the way even without the tiling errors, so whatever you bought it's crap.

These are as they came from Raymarine's lighthouse thingy.
Nothing "hooky" about them I assure you.

Could there be some kind of misconfiguration?

 

[Sticky Fingers]

These are as they came from Raymarine's lighthouse thingy.
Nothing "hooky" about them I assure you.

Could there be some kind of misconfiguration?

OK fair enough

Is it any better at a different zoom level (in or out)? Might be lack of available raster charts at that chosen resolution. I'd still not expect the distortion / misaligned tiling though.

 

[[163233]]

OK fair enough

Is it any better at a different zoom level (in or out)? Might be lack of availanble raster chartets at that chosen resolution. I'd still not expect the distortion / misaligned tiling though.

It does look different at different zooms, but the stitching is still poor.
I'll see if there's some kind of update to the charts.

It'd be interesting if other people see the same problem in that area.

 

[Sticky Fingers]

Is the coverage good elsewhere (this just a local aberration?)

 

[[163233]]

Curious, I can't find any other glaring ones at the moment, but I'm sure I've seen this elsewhere.

I have the C50 and M11 paper charts that these are based on, and they both have Cape Traf. LH at 36 10' ish. It looks like the digital version has C50 in slightly the wrong place.

I guess if it doesn't happen a lot it doesn't matter too much, but it doesn't fill one with confidence.

 

[KompetentKrew]

This happens occasionally on OpenCPN too, rather the same as you're seeing there

It happens when a large scale chart is laid above a small scale one - I'm sure the large scale chart is right (when this happens on OpenCPN).

I wonder if it's to do with chart projection.

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