Cruising Sailors Forum Archive

I agree with much, but not the 8x10 mask part

That is still a brain not processing the data differently.

Alternately, take your fingers and pinch the zoom in and out. You can go from as large of chart scale as wanted to as small as wanted - instantly, smoothly and seamlessly. After doing this for a while, the brain begins to process data in a vertical stack instead of the old way of a horizontal span. All of the data are "seen", even when it is not even on the screen. I don't forget about a shoal just because I zoom out to see the entire island. Likewise, I don't feel like I am looking at a chart with a 8x10 mask over it. Conversely, I feel that I have infinite chart to work with - in both directions - which I never did with paper charts.

I don't understand the focus on resolution. At all levels, the electronic charts have appropriate resolution for the job I am doing. I don't see any need for focusing way in on a close-in feature on a large scale chart. That is what small scale charts are for, and what electronic charts excel at. Besides, a preference for the raster chart format is the only place this has any bearing anyhow. It is completely meaningless with vector charts, which are our predominant form.

Going forward, you will only be seeing raster charts on museum walls, so no better time than the present to get used to vector formats. I'm sure the change from old stylized lithographic charts with sea monsters and gods in the margins to raster formats bothered people also.

Mark

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