of the dot o Or will give a sample of what different densities of dots look like - The smaller the dot size and larger the dot value, the less prevalent the dots will be - The larger the dot size and the smaller the dot value, the more prevalent the dots will be - RULE OF THUMB: The dots should just begin to coalesce/merge in the densest region of the densest enumeration unit Mapping Qualitative Data With Point Symbols - Types of Qualitative Point Symbols: o Mimetic/Pictorial
o Associative o Abstract SUMMARY Technique When Appropriate Data Types Choropleth Map Portraying a geographical theme within areal Derived values, enumeration units ratios, proportions Dot Map Used to show spatial numerousness of Absolute data geographic phenomena; usually area-based data Proportional Symbol Map Displaying discrete phenomena at points or to represent aggregate data at points Absolute data, ratios, and proportions Isarithmic Used when total form of continuous phenomena is warranted Absolute data Flow Map Used to show movement of goods or ideas between places (interactions) Absolute data, ratios, and proportions Map Design Part 1 Controls on Map Design 1) The Map Objective 2) The Location and Attribute Data 3) The Map Scale and Format 4) The Intended Audience 5)Technical LimitsAffective Value Refers to the mood that map createsHow Much Information Should One Map Display?
1) Clarity and Legibility – everything you pout on your map should be clear and legible and non-ambiguous (if 2 things are supposed to represent the same thing, they should look the same) 2) Visual Contrast – maximum contrast = black and white o Contrast is fundamental in developing figure and ground o Can be achieved through: Line – line character or line weight Texture Value Detail Colour 3) Balance and Layout o Golden Selection – rectangle whose sides are roughly in a ratio of 3:5 Line divided into two such that the proportion of the smaller part into the larger is the same size as the larger part to the sum of the small and large parts
- Summer '14
- sans serif, North Pole, Pseudocylindrical, Isarithmic Mapping