CONTROLLING THE ORIENTEERING COURSE MAP

Download CONTROLLING THE ORIENTEERING COURSE MAP

Post on 03-Jan-2016

21 views

Category:

Documents

1 download

Embed Size (px)

DESCRIPTION

CONTROLLING THE ORIENTEERING COURSE MAP. There is a need for a stricter enforcement of the rules. An evaluation of IOF Event Maps found an increasing number of map deviations ie Non standard symbols Wrong line widths Wrong colours Non-sharp lines Overly detailed maps - PowerPoint PPT Presentation

TRANSCRIPT

  • CONTROLLING

    THE ORIENTEERING COURSE MAP

  • There is a need for a stricter enforcement of the rulesAn evaluation of IOF Event Maps found an increasing number of map deviations ie

    Non standard symbolsWrong line widthsWrong coloursNon-sharp linesOverly detailed mapsGraphic minimum dimensions not respectedWrong map scales appliedWrong size of control circlesArea symbols too smallPoor generalisationInferior quality paper

    Ref: IOF Map Commission

  • Is the map important?

    YESA standardized map is the basis fororienteering as an international event

    A map with deviations = unfair competition

    Ref: IOF Map Commission

  • Controller to ensure the Course Map complies with the rulesInternational Specification for Orienteering Maps - Foot-O Sprint (1:5000-4000) Ski-O MTBO - Check list for controlling the map making of major IOF events

    IOF Control Descriptions 2004- Course marking

    Competition Rules for Orienteering Australia Foot Orienteering Events - Section 15. Maps- Section 17. Restricted areas and routes- Section 18. Control descriptions

    OA Guidelines- Digital Printing Policy - Operational Manual 6.3

  • Requirements of an Orienteering mapThe map must: give a picture of the terrainbe accurate use IOF map symbols & scales be legible andbe up to date

  • The map must give a picture of the terrain

  • The map must be accurate absolute and relative accuracyAbsolute accuracy is out by 85-90m at control 24.Map distortions?Relative accuracy appears OK as orienteers found the control!

  • The map must be accurate

    Use a GPS to check map accuracy and correct location of controlsCheck magnetic north declinationCheck the spacing of North lines & breaks in lines

  • The map must use IOF map symbols & scales

    an international symbol setis a symbol set developed over many years

    no deviations = fair competition

    revision of ISOM 2000 to consider:technological changes in map productionnew event formats ie sprint & middleadd new, modify or delete symbolsmap scale

  • The map must use the correct scale for the event format Long distance1:15000, 1:10000* with approval** for elites 1:10000* for < M/W16 and >M/W40

    Middle distance1:15000, 1:10000*

    Relay1:15000, 1:10000*

    Sprint1: 5000 or 4000

    *A 1:10000 map is a strict enlargement of a 1:15000 map

    **Approval is needed for M/W Elite junior & senior and M/W 17-39A in the Australian Championships to use a scale other than 1:15000

  • The map must be legibleLegibility is dependent on:

    the Quality of the Mapping the Quality of the Printing the Quality of the Paper

  • The map must be legible the Quality of the Mapping

    a few well drawn features are better than a lot of small detail that may clutter the map or disguise the shape of the landform

    Eduard Imhof, Swiss cartographer

  • The map must be legible the Quality of the Mapping

    Maps get more and more detailed. I dont know if this is the right way to go, but it is a fact. Thierry Gueorgiou Dec 2007

  • The map must be legible the Quality of the Mapping- What features to map as per ISOM: min heights & areas - How the feature is to be drawn as per ISOM: symbol size, line width

  • The map must be legible the Quality of the Mapping the Quality of the Printing

    off-set spot colour printing- Is the only method approved for IOF Foot-O ranking events(2) other printing methods- ie 4 colour (CMYK) digital, digital offset (digital colour press), laser printers, inkjet printers, colour copiers- Laser printers now commonly used in Australia- Print quality is highly variable

  • The map must be legible the Quality of the Mapping the Quality of the Printing- For Level A events: digital printing is OK if there is no significant loss of line quality, legibility, colour appearance and map durability OA Digital Printing Policy Operational Manual 6.3

    - 1:10000 maps more likely to be suitable for digital printing

  • The map must be legible the Quality of the Mapping the Quality of the Printing the Quality of the Paper

    Legibility factors to consider:bright white paper (not off-white) for best colour contrastmatt finish (not glossy or shiny)

    Related factorstexture or feel of the paper, foldabilitypaper thickness / weightdurability of paper in all conditionswater resistance of paper, need for a plastic bag (0.10mm)waterproof paper

  • An example legibility of contours Difficult to calibrate dot size in some digital printersCartography may need to reflect printing method and paper qualityUse the same print setting for all maps used at an event

  • The map must be up to date

    Changes to the extent and density of vegetation Impact of fire, flooding & erosion Sprint maps need constant review Seasonal changes New tracks, roads, man made features ..

  • Quality control toolsfor use by the Controller and Planner OA colour swatch

    OA colour purple swatch

    IOF Map Commission Print Tech Project test sheet

  • Quality control toolsOA colour swatch Check colours on a map by comparing to the OA off-set spot colour swatch

  • Quality control toolsOA colour purple swatch

    CMYK 43 91 00 00

    CMYK 30 100 15 00 Now recommended

  • Quality control tools IOF Map Commission Print Tech Project test sheet template

    Compare a digital test print with the IOF off-set spot colour test sheet

    Check for:Sharp edges to lines and symbolsCorrect coloursEven coloursNo stripes, holes, bubblesResolution - clear thin lines, no moire effect, no zig zag edgesVertical & horizontal accuracyDo contour lines have the same appearance over the colourscreens nb brown is often a problem over mid & dark greenAnd more..

  • Some recent map deviations in Australia Non standard symbols used for horse jumps ie elongated H or box- use fence symbol Colours not adjusted for printer a common problem when using 4 colour Laser printers Fuzzy lines use a better printer! Sprint map scale of 1:3000- must be 1:4000 or 1:5000 Vegetation area symbols too small for legibility- leave off map or redraw with respect to minimum dimensions Map scale of 1:10000 with 1:15000 map symbols- a 1:10000 map must be a strict enlargement of a 1:15000 map Man made features when used not defined - the legend or map notes must describe the feature ie pole Can not incorporate ISOM fence symbols with Sprint maps- Sprint only have two: Passable & Impassable

  • Course marking considerationsCircle size, line width and text may be 150% for an enlarged map- otherwise may need to change the control descriptions

    Do not cover important map detail- use overprinting effect or cut out line segments

  • Course marking considerationsCan only use control features that are obvious in the field and accurately shown on the map.

    Dangerous objects and areas to be marked on the map and flagged in the field

    Controller and Course setter should use the same softwareMap: OCADCourse: OCAD, Condes, CorpseHave a system to track updates, corrections, changes

  • Using map subsetsSubset (and all maps) to have a TitleScale ratio (Bar scale highly recommended)Contour intervalNorth linesCorrect spacing of N lines1:15000 - 500m1;10000 - 250m1:4000 & 1:5000 -150mLegend, or if insufficient space print as a separate sheetDate of mapping, with updatesCredits: mapper, map owner, land holderNotes on Special symbol(s) if used

  • Using map subsetsSome more considerations:

    Ensure sufficient space between the map edge and controls or likely route choicesAvoid covering part of the legend with the control descriptionKeep the number of map subsets to a minimumeasier to manage, less chance of mistakesMap subset should fit an A4 or A3 pagenote: 1:15000/A4 will fit on to an 1:10000/A3

  • What is your decision as controller?Should a Sprint map be used for a Middle Distance event?On the Sprint map below are competitors allowed to cross the Impassable wall on leg 19 to 20? Competitor safety?

Recommended

View more >