Friday, 22 January 2016

Tylop’s Fable


One beautiful summer’s day Mr. and Mrs. Painted-Turtle were all ready for their first vacation and everything was going swell. “You made sure you packed our passports right Mr. Painted-Turtle?” said Mrs. Painted-Turtle frantically. “Yes, I got them.” Responded Mr. Painted-Turtle. Mrs. Painted-Turtle was asking questions the whole way to the Great Lakes. The Great lakes are precious though and were guarded by the Silver back Gorillas. The Silver back gorillas are very territorial and protective of their land so they toughly inspect everyone who tries to come to the land of the great lakes. When Mr. and Mrs. Painted-Turtle got to the boarder the big silver back gorilla asked them a bunch of questions that they had all the answers too and the silver back gorilla seemed impressed but he had one final question. He asked Mr. and Mrs. Painted-Turtle to remove their shell so he could inspect it. Both Mr. and Mrs. Painted-Turtle looked at each other jaws wide open and said “We are Turtles! Taking off our shells will kill us! We can’t hide anything in our shells, we will not remove them!” the Silver back Gorilla said “Then you cannot enter the Land of the Great Lakes!”  Mr. and Mrs. Painted-Turtle got really mad and used their hard shells to knock the Silver back Gorilla out and they entered the Land of the Great Lakes for their vacation.


Friday, 8 January 2016

Found some rules to cartography online from http://www.wwu.edu/huxley/spatial/tut/cart/cart_rules.htm 


Cartography is as much about style and artistic design as it is about information and communication. Try to keep in mind both of these goals (style and communication) when designing maps. While there are very few hard and fast rules for cartography, there are many standards or conventions that are widely adopted. Taking advantage of these commonly recognizable standards will generally make your maps more readable for your viewers. Thus, while the following are by no means rules that must be followed, they are found on many maps...

There are a number of commonly recognized symbols that can be taken advantage of:

Point Symbols
                     
    Capital         Schools         Hospital  Marina
     

Line Symbols
                           
    Rivers     Highways    Interstate    Internat.    Railroad
  Shorelines                                     Border
  
Polygon/Area Symbols
                
        Oceans     Forests   Wetlands
         Lakes

Text and Annotation
    Natural Features: Italics
    Human-made features: non-Italics
    Hydrology features are often labeled with Blue Italic text
        If for a river, text should be 'splined' (follow the line of the river)
    States and/or Countries are typically labeled - non-Italic, bold
    Major Cities are typically labeled - non-Italic
    Avoid crossing feature lines with text (add a 'halo mask' text if necessary)
    Mountain ranges typically have splined text following the range
        Mountain ranges often use wide spaced lettering
    Text can be horizontal or rotated up to 90 degrees or down to 85 degrees
        Vertical text should read from bottom up, not top down


Legends
    Not all layers in a map need to be included in the legend. Examples of layers you might choose to leave out of the legend:
  • Water, which is typically understood to be blue and easily recognized
  • Raster imagery (Air Photos or Satellite Imagery) whose nature is self-evident
            Such imagery should, however, be listed in a data note or the like, listing the date and source of the image.


General
    Use even numbers for Scale (1:200 or 1:2,400 as opposed to 1:243)
    Zoom in to the area of interest.
    Avoid showing areas beyond the available data (or areas with only some of the data layers)
    The human eye (and the common printer) can only differentiate between a few shades of any one color (do not attempt to have 6 shades of red or 8 shades of green). The exception to this is in the case of a color ramp where the purpose is to indicate a gradient of many colors (in which case the viewer is not expected to need to or be able to precisely identify any one color).