Visual Strategies for Overlapping Polygons

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  • Опубліковано 3 гру 2024

КОМЕНТАРІ • 33

  • @husiyuan930517
    @husiyuan930517 2 роки тому +12

    The last two tricks are sooooo good and useful. Thanks so much for sharing!

  • @danwdoo
    @danwdoo 2 роки тому +2

    Simple, immensely useful, and entertaining as always. Brilliant work as always!

  • @bertkraan2817
    @bertkraan2817 2 роки тому +1

    Great work! Thanks John.

  • @ZorkoZerg
    @ZorkoZerg 2 роки тому +2

    Feature blending is something I didn't have an opportunity to use yet but I am a big fan of tessellations. Another great video full of useful techniques. Thank you John.

  • @austinyu797
    @austinyu797 2 роки тому +5

    Wow I feel like these videos always come right when I need them!
    I had recently made a similar map displaying wildfires with messy overlap, but the requester wanted them classified into 4 classes by years. Not sure if you had any thoughts of how to properly symbolize that and maintain distinction; what I ended up doing was using the overlay layer blend coupled a white outline.

    • @JohnNelsonMaps
      @JohnNelsonMaps  2 роки тому +4

      I think in that case I’d use the hexagon aggregation method

  • @mlsauron
    @mlsauron 2 роки тому +1

    I'm so glad I've found this channel! Cheers mr. John‼

  • @ava.artemis
    @ava.artemis 2 місяці тому

    This is super helpful. Thank you for sharing. 🙏🙏🙏

  • @miqal95
    @miqal95 2 роки тому +1

    You can also make hatching at a different angle. For example 45° for yellow polygon and -45° for blue one.

  • @crimsonstone369
    @crimsonstone369 2 роки тому +1

    Take a week just learning the basics and you will be good, I been using soft soft since it was Fruity Loops back in 03, and still learn

  • @outkast_monke
    @outkast_monke Рік тому +1

    What about overlapping from two different layers

    • @JohnNelsonMaps
      @JohnNelsonMaps  Рік тому

      that's harder. you could use a spatial join and aggregate the data of one into the other. you could also do a union of the two layers and make discrete unique shapes. and probably other things. but it's not a straightforward.

  • @connor3089
    @connor3089 2 роки тому +1

    Super useful visual strategies. Thanks for such a great video! For CA fires, based on this video and your blog from a few years ago, I cannot, for the life of me, get the spatial join to do a join_count of # fires within each hexagon >1. I did see your correction of join within in the blog, also tried it as intersect as in the video and can't get it to work.

    • @JohnNelsonMaps
      @JohnNelsonMaps  2 роки тому +1

      I’m away from my computer this week Vance but send me an email and we’ll figure it out next week

    • @gdurkee
      @gdurkee 2 роки тому +1

      @@JohnNelsonMaps Heya: could you publish the solution if/when you do it? I was also struggling with a similar workflow. Grazie!

  • @senaretothman4757
    @senaretothman4757 2 роки тому +1

    Nice

  • @michaelblinn3761
    @michaelblinn3761 2 роки тому +1

    Do you have strategies for lableing overlapping polygons? I would like it if I could push the label to the area of the polygon that was still showing instead stead of having stacked labels.

    • @JohnNelsonMaps
      @JohnNelsonMaps  2 роки тому

      that can definitely be a challenge. let me think about this one.

  • @gistutorial593
    @gistutorial593 2 роки тому +1

    thank you

  • @annissu911
    @annissu911 Рік тому +1

    What if you have more than two overlapping polygons, each with it's distinct color ?

    • @JohnNelsonMaps
      @JohnNelsonMaps  Рік тому

      in that case, three classes makes this technique a lot messier and i wouldn't recommend it. unless you used cyan, magenta, and yellow, and used a multiply blend mode to combine their hues like a printer does, maybe?

  • @JV-gi1hs
    @JV-gi1hs Рік тому

    Thanks John. But when I make legends out of those blended features, they won't display them in the layout.

    • @JohnNelsonMaps
      @JohnNelsonMaps  Рік тому

      yes, unfortunately legends aren't able to show the relationship that blend modes have on stacks of layers.