• hittest/hilite
  • test only enabled layers
  • test only qualified features, those that fall in the time period and scalerank

x let esc key cancels hilite

• add x close button to label, and let that cancel the hilite

• hilite of cities, has moved true, redraws whole screen ?
• clear hilite on zoom (or reposition label on every move/zoom redraw)
• x enable hittest for points
• x bug: hilite cities, palette choice

• twit
  • create email sam@voyc.com, keep john@voyc.com because it is published on the voyc demo video
  • create twitter account for sam.voyc
  • link main menu to twitter account

• menu
  • user guide, appendix
  • videos, appendix

• database
  • ST_GeomFromGeoJSON, add Caspian Sea to lakes

• ? animate projection switch, equirectangular projection
• ? mercator stitch, in GeoIteratorClip

• sketch
  • mask land https://stackoverflow.com/questions/18379818/canvas-image-masking-overlapping, ctx.clip()
  • blur (feather) a border https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/filter
  • multi shapes
    • auto close, and start new shape
      • double click (line and polygon)
      • drop the next point on the first point (polygon only)
  • test and reimplement touch

• edit layer
  • x. save geom in custom01
  • 2. save geom in any custom layer, from menu of custom layers
  • 3. edit an already existing shape
    • how do we select a shape for editing?
      • before saving, you can grab any point and move it
      • you can select any object on the page and begin editing it, moving points, close it if not already
    • how do we select a layer for editing?
  • 4. save in base layer, restricted shape type
    • setting: allow base layer editing

• custom layers
  • x put layer menu in local storage
  • new layer
  • attributes and data saved in database by userid
    • Public, private
    • Description, tags
    • custom palettes
  • Search engine
  • example Custom Layers
    • CIA puppets
    • china expansion
    • international dateline
    • wars, battles
    • choke points

• Mouse move while sketching
  • distance
  • Globe: great circle
  • Mercator: rhumb line
    • https://javascript.hotexamples.com/examples/%40turf.rhumb-distance/-/default/javascript-default-function-examples.html
    • https://stackoverflow.com/questions/4541134/rhumb-line-calculation-javascript-to-php

• editable palette
  • consider base palette vs custom palette
  • KEEP data and presentation separate
  • data goes in database, palette in local storage.
    • custom layers require 1 palette for each layer
    • named palettes
  • put palette in local storage

• named, db-saved, editable custom layers
  • custom layers will be pulled from the db, not included js files
  • enable user login
  • implement read-write of custom layers
    • svc: read custom layer per user
    • svc: write custom layer per user (insert or update)
  • save all localStorage in db by user. really? then you need a reset option

• search, return list, select one, highlight selected, similar to hittest
  • find a place for the search button
  • multi-match
  • find “Kush”, id 109

Features

• setup ctx ahead of time, not at draw time, after layer creation, “fixup layer palettes”
• db update for editing base layers
• db update for custom layers
• cities and treasure layers with point medalions

• North button, appears when gamma non-zero

• time
  • add « » fast forward
  • when touching mouse to date, resolve to slider

Bugs

• when mouse moves off the board, blank out the whereami
• pointInPolygon() does not always work, see Crystal Mountains
• rank 1,2 gridlines hit only sometimes
  • seems to always work at intersection with other geoms
• treat wheel zoom same as zoom slider
• timepicker, arrow keys attempt string instead of numeric addition, until after first use of slider
• timeslider appears on startup even when history layer is disabled

Mysteries

• Big bang
• DNA
• Life only eats life. So the origin requires at least two life forms, or canabalism.
• Civilization
• Is there life without a cell?
• Is there a life form that eats only inorganic minerals? Maybe some eat amino acids and proteins?

Chokepoints

• Cumberland
• Two horns, Africa, Arabia, straits
• Capes, good hope, cod,
• Strait Malacca, piracy
• Natural vs man-made, canal, bridge, turnpike, borders Crossing
• Miles Davis twice
• Berlin
• Athens school
• Kuyber Pass
• greece-turkey