A Gentle Introduction to GIS: errata in chapter 9

[loggione2121]

https://docs.qgis.org/3.40/en/docs/gentle_gis_introduction/map_production.html#figure-map-legend

paragraph 9.3: figure reference at the end should be to Fig. 9.46, not 9.43

paragraph 9.8: in “latitude 26.04 / longitude -32.11”, latitude and longitude are inverted looking at Fig. 9.46

[BhattacharjeeSutapa]

@DelazJ please assign me for this issue.

[BhattacharjeeSutapa]

Hi @loggione2121,

I have a question regarding paragraph 9.8:

In the sentence “latitude 26.04 / longitude -32.11”, it was mentioned that latitude and longitude appear inverted when compared with Fig. 9.46.

However, after reviewing the figure again and considering the North arrow, it seems that the values may actually be correct if the appropriate hemisphere indicators are added.

Would you please confirm whether this assessment is correct?

I am attaching both links here for reference.

https://docs.qgis.org/3.40/en/docs/gentle_gis_introduction/map_production.html#figure-map-elements

https://docs.qgis.org/3.40/en/docs/gentle_gis_introduction/map_production.html#figure-map-graticule

Thank you!

[DelazJ]

if the appropriate hemisphere indicators are added.

@BhattacharjeeSutapa it is unclear to me what you mean by the above, but your analysis of the screenshots looks correct to me. The trick is in the orientation of the north arrow in the first image. Good catch.
However, I find it unexpected, ambiguous, uselessly confusing to add a north arrow oriented to the left of the paper in an on boarding documentation, without explanation/notifying. The north arrow subsection also explains that north is to the top. But then they silently rely on the left orientation in further steps.
My take would be to:

• reorient the north arrow to the top (keeping the rest of the first image as is),
• adjust longitude and latitude as suggested here
• add the north arrow (top-oriented) in the lat/long image also.

Opinions?

[BhattacharjeeSutapa]

Opinions?

Yes, I agree with your suggestions. I'll be creating a PR that solves the structural problem of the North arrow orientation.